DIgSILENT Consulting and Training

DIgSILENT

Consulting and Training

O U R E X P E R T I S E F O R Y O U R C H A L L E N G E S R E G A R D I N G

T R A N S M I S S I O N / D I S T R I B U T I O N / I N D U S T RY / G E N E R AT I O N / I N T E G R AT I O N O F R E N E WA B L E S

TRANSMISSION SYSTEMS

Grid Development Plans (GDP)

Feasibility studies

Comparative AC/DC concept studies

SVC, FACTS and HVDC systems (LCC/VSC)

Phase angle regulating transformers (de-mand, design, protection)

Concept analyses for transmission technolo-gies (overhead lines, cables)

Technical problems of underground cables

Steady-state voltage stability

Analyses of the reactive power demand

Requirements regarding reactive power exchange with lower-level distribution networks

Concepts for meeting the reactive power demand (steady-state/dynamic; parallel/serial)

Sub-synchronous resonances (SSR)

Analysis and assessment of the steady-state and dynamic system stability, taking the voltage, rotor angle, and frequency stability into account

Feasible stability concepts (e.g. realisation of required fault clearing times)

Analysis of grid oscillations

Power system stabilizer (PSS) tuning

System control and operating reserve

Analysis and assessment of the stability of parallel control structures in the transmis-sion system

Requirements regarding the load change rates of generating units

Strategies and technical requirements for system restoration after an outage

Criteria for black-start capability

Electromagnetic transients

Insulation coordination

Optimisation of system operation (e.g. switching sequences, maintenance processes)

Effects of a quantitative change of rotating masses on the system

Minimum rotating masses required for secure system operation

Design, control and operation of systems without synchronous generation

Technical analyses of offshore transmission systems (AC/DC)

Reliability of supply as part of system securi-ty; consequences for the plant configuration

Harmonics in transmission systems (sources, propagation, planning level)

Technical specifications of operating equipment

Cost-benefit analyses

Combined system and market studies

Requirements for switchgear in case of switching near the generator (absence of zero-crossings of the fault current)

DISTRIBUTION NETWORKS

Target network planning

Structured analysis of given network topolo-gies; concepts for change

Comprehensive assessment of connection concepts (e.g. looping in and T-branches)

Potential profile optimisation

Reactive power exchange with other net-works (distribution, transmission level)

Analyses of load profiles

Assessment of neutral point treatment concepts

Optimal future neutral point treatment

Interaction of neutral point treatment and requirements regarding earthing systems

Technical and economic assessments

Determination of the power loss on all network levels based on real or specific reference networks

Network restructuring and optimisation

Analysis of the criteria for the assessment of the power quality (e.g. measurement)

Propagation of harmonics between network levels

Design of compensation systems

Quality of supply as part of the security of supply

Optimised integration of peripheral gener-ating plants (objective: minimum network expansion)

Identification of regional characteristics in distribution networks

Specified and regional requirements regard-ing the electrical properties of generating plants

Islanding and network restoration

Electromagnetic fields (e.g. in public areas)

Objective assessment of damage; analyses of the cause of damage

INDUSTRIAL NETWORKS

Visualisation and design of optimal network topologies

Diesel/gas/converter fed generation mod-elling in island mode and grid connected modes of network operation

Selection and specification of key plant parameters

Power quality assessment in systems with high densities of power electronic drives

Standby power and auxiliary supply systems

Load shedding strategy development for process assurance

Cable analysis and selection

Stability in island mode operation

Evaluation of motor starting transients and strategies for the starting of motors and drives

Experience applicable to any industrial seg-ment including oil and gas, manufacturing, mining, metals, chemical, marine and data centres

DIgSILENT | Consulting Services - Overview

DIgSILENT offers project support in the field of power systems and power plants. Our team for power system analysis and simulation develops innovative, profitable and efficient solutions. With DIgSILENT as your project partner, you will benefit from our many years’ experience and our international network of experts.

RAILWAY AND ON-BOARD SYSTEMSDesign and analysis of 400 Hz standby power

and on-board systems

Steady-state and dynamic analysis of coupled AC/DC systems with different nominal frequencies and phase technologies

Railway traction simulation

NETWORK PROTECTIONDesign and dimensioning of network pro-

tection schemes for all voltage levels and topologies

Visualisation of protection settings and the effects of faults and network operating points

Comprehensive auditing and optimisation of the selectivity of existing protection systems

Design of special protection concepts like re-verse blocking and transfer tripping schemes based on signal comparison

Development and implementation of protec-tion databases based on PowerFactory and StationWare

Fault analysis by means of steady-state calcu-lations and dynamic short-circuit simulations, taking the behaviour of CTs and specific setting parameters of the protection systems into account

Protection concepts to avoid unwanted islanding

Comprehensive consideration of relay models during dynamic simulations in order to in-vestigate the behaviour of the relays against oscillations in the grid

SMART GRIDS

Smart grid strategies and roadmaps

Peripheral storage systems (market-driven/network-driven)

Effects of feed-in management on network expansion projects

Demand side management

Smart grid coordination by means of ICT

Smart grid co-simulation

Virtual power plants

SYSTEM INTEGRATION

Objective assessment of the available grid connection capacity for generating plants

Determination of the number of usage hours at maximum load

Grid connection studies with reference to the grid code of the respective power system operator

Determination and review of grid connection points according to the grid code

Design and dimensioning of internal topolo-gies of renewable energy systems

Configuration of optimal offshore solutions for platforms and grids

Determination of requirements for generating units/plants; compliance studies according to FGW Guideline TR4/8

Concepts for wind and PV park control

Network stabilisation with renewable energies

Communication with power system operators during the grid connection process

Due diligence for all kinds of generating plants

GRID CODES

Development of grid codes and adapted grid connection regulations for generators and consumers

Determination and assessment of require-ments regarding the control characteristics of power plants in connection with the spinning and non-spinning operating reserve

Definition of basic parameters for power plants to guarantee system stability

Development of measuring procedures and modelling principles to prove properties of generating units/plants

Definition of control strategies to maintain frequency stability in power systems with minimum rotating generation

Execution of power system studies to validate and further develop existing grid codes

SIMULATION MODELS

Development of complete and reviewed network project databases for application of

the PowerFactory software

Development of high-precision power plant models for wind turbines, PV panels, com-bustion engines, steam-electric power plants, hydraulic power plants, gas turbines and special plants

Validation of power plant models based on component or plant measurements

Development of simulation models for HVDC systems (VSC, LCC) including complete grid models (RMS and EMT models)

Connection of manufacturer DLL and prepara-tion of encapsulated models

Determination of optimised regulator settings

Development and optimisation of control strategies

POWER PLANT AND NETWORK MEASUREMENTS

Planning, coordination and execution of grid-wide tests and measurements based on the PowerFactory monitoring system

Execution of measurements as proof of com-pliance with grid codes

Use of the PowerFactory monitoring system to monitor power plant properties

Execution of measurements in power plants, systems and grids to establish and validate simulation models

POWERFACTORY SYSTEM- INTEGRATION

GIS/SCADA integration projects

Automation of business processes

Support of integration components

Development of interfaces and databases

Development of real-time simulators and co-simulation applications

TRAINING COURSESStandard training courses

Customised and user-specific training

DIgSILENT | Consulting Services and PowerFactory Applications

TRANSMISSION SYSTEMS

Due to the expansion of renewables and the dismantling of conventional power plants, transmission systems are currently subject to major changes. In periods of high feed-in of power from renewable sources in particular, power is fed back from the distribution networks, while the load flows over long distances and the exchange of power with the network partners increase as well.

The increase in the degree of utilisation of the transmission systems requires sophisticated concepts for reliable operating management, including the assessment of dynamic stability criteria and the corresponding properties of the power plant park. As conventional power plants are decommissioned, steady-state and dynamic reactive power provision by means of parallel or serial systems becomes a necessity in order to ensure voltage stability. New transmission technologies and the complex characteristics of power systems without synchronous generation play a role as well. Current planning scenarios provide for the use of HVDC VSC systems for the transmission of power over long distances.

The DIgSILENT PowerFactory software is a preferred tool to implement the necessary planning processes due to its flexible power system modelling and high-performance functions. DIgSILENT supports the implementation of planning tasks both in the concept and the design phase, focusing on tasks that require complex modelling solutions and system analyses.

DIgSILENT has extensive international experience in the devel-opment of solutions to ensure system stability. In addition to the execution of planning tasks, such as the development of grid expansion scenarios in compliance with (n-1) contingency requirements, with renewables peak capping, power plant re-dispatch, regulation of power transits, and optimal reactive power provision, DIgSILENT also assists transmission system operators (TSO) with the solution of complex operational aspects such as determining all the stability parameters of power plants and power systems.

DIgSILENT prepares studies with the objective of using existing transmission systems in the best possible way in accordance with sound operation criteria. HVDC systems are also used in this context. It is important to prevent grid oscillations, subsynchronous resonances (SSR) and super-synchronous control interactions (SSCI).

REFERENCES

Regulatory authority (ENTSO-E): Determination of the maximum transmission capacity of interconnections including relevant network stability criteria TSO (Ukraine): Preparation of a Master Plan for the South Ukraine regional transmission network including wind and solar power integration TSO (Peru): Verification of the grid development plan for the period 2014-2018 based on comprehensive stability criteria including dynamic stability as well as DSM measures TSO (Germany): Grid access studies for the grid connection of Offshore wind farms to the 380/220 kV grid of the TSO TSO (Mongolia): Stability study of the Mongolian power system with and without connection to Russia including a detailed determination of the power plant regulations TSO (Germany): Risk assessment of subsynchronous resonances (SSR) in the grid of the TSO during the introduction of series-compensated transmission lines TSO (Panama): Determination of the maximum possible installed wind genera-tion capacity in the national interconnected power system of Panama Regional grid operator (Germany): Analysis of the connection of a 500 MW power plant unit to the 110 kV grid Regulatory authority (Egypt): Capacity Credit Study of wind energy in the Egyptian power grid Wind farm developer (Germany): Dimensioning of surge arresters in an offshore cable network


DISTRIBUTION NETWORKS

The transition of power generation to renewable energy sources, which is progressing on a global scale, causes changes in the requirements regarding the planning and operation of reliable distribution networks. For example, more than 90% of the installed capacity of peripheral generating plants in Germany have already been connected to the heterogeneous distribution network levels of the low-, medium- and high-voltage networks. For the network operators, the statutory obligation to connect renewable energy sources results in high requirements to maintain technically safe and stable networks. So far, these requirements have been met by expanding the grid territories primarily in rural areas. The investments required for this purpose until 2030 are estimat-ed at more than EUR 20 billion. Studies have shown that the investments required can be reduced by almost half by using “smart” technologies both in planning and operation. The greatest savings can be achieved by using feed-in manage-ment in combination with adjustable local grid distribution transformers. “Smart” feed-in management concepts are used to ensure that the supplied power is capped only at the time and place of a bottleneck in the power system.

DIgSILENT assists distribution network operators (DNO) with the optimal planning and design of their networks. The DIgSILENT PowerFactory software is an indispensable tool for developing flexible feed-in management concepts. “Smart” concepts take the daily load and supply curves into account. If limit values are exceeded at specific times, a targeted, selective reduction of the active power or redistribution of the generation and load management are possible.

DIgSILENT has extensive experience in the analysis of distribu-tion networks of varying structure and properties. DIgSILENT assists with the planning for successful islanding in case of faults introduced from the high- and extra-high-voltage system, which is becoming ever more important, focusing on the control and stability characteristics of the power plants remaining in the distribution network and on an appropriate protection and network restoration concept.

REFERENCES

DNO (Germany): Analysis of the grid capacity for the integration of PV and CHP plants in compliance with the Grid Code DNO (El Salvador): Development of a methodology for the determination of equivalent network presentations to commit to the project developer with the objective of complying with the grid codes in a reliable manner DNO (Germany): Revision of the protection concept of the 20 kV MV network, including identification of new, more robust protection settings DNO (Germany): Review of the load and dimensioning of the medium voltage network, including review and optimisation of protection settings DNO (Bolivia): Protection study and coordination of the protection settings regarding the new 69 kV line Vinto-Socomani For several utilities and DIgSILENT PowerFactory user (Germany): Import of network data in PowerFactory from GIS system and verification; quality inspection as well as extension of the data model for comprehensive network calculations For several utilities (Germany): Analysis of grid capacity for the integration of distributed generation in the low and medium voltage network in compliance with the respective grid codes Regional grid operator (Germany): Calculation and evaluation of different variants of the target system including calculation of losses for the 110 kV grid as well as reliability and profiltability calculation of the target grid options Grid operator in Curaçao (Aqualectra): Ensuring isolated operation and development of methods for grid restoration after a blackout

120.0090.0060.0030.00OPF Berechnung: Betrachtungszeitraum [h]OPF Berechnung: Wind-ErzeugungOPF Berechnung: Hydraulische-ErzeugungOPF Berechnung: Thermische-ErzeugungOPF Berechnung: Netzlast

120.0090.0060.0030.00OPF Berechnung: Betrachtungszeitraum [h]OPF Berechnung: Verfügbare Wind-ErzeugungOPF Berechnung: Gekappte Wind-Erzeugnung


INDUSTRIAL NETWORKS

Industrial networks are characterised by a high proportion of process related motor load, a high density of MV and LV network and distribution boards with industrial standard switchgear rated for high short-circuit currents, short distances between the switchgear, predominant use of cables, operation of dynamic and non-linear loads, and locally situated power generation.

Based on many years’ international experience in extensive industrial network analyses, e.g. in the automotive, mining, oil and chemical industries, DIgSILENT provides solutions for all electrical power issues:

Determination of the consumer lists and load structures

Preparation and review of plant designs and network expansions

Dimensioning of switchgear, distribution systems, cables and transformers based on load flow and short-circuit calculations in accordance with relevant standards

Development and dimensioning of connections of third-party grids and in-house power plants including the required standby power supply concepts

Definition of the basic parameters of generators and control systems

Design of highly reliable network areas

Integration of large drives and strongly fluctuating consumption

Assurance of the required grid quality and reliability of supply

Arc flash hazard calculation based on the applicable standards

Evaluation of motor starting and re-starting concepts as well as the application of automatic transfer switches in order to avoid long interruptions in a process under consideration of the dynamical behaviour of generators.

NETWORK PROTECTION

In addition to the design of power systems and plants and the compliance with general stability requirements, efficient network protection helps to ensure that the power supply is as reliable and uninterrupted as possible.

DIgSILENT assists with the concept design and definition of protection settings for any kind of electrical network in order to achieve fast and selective fault clearance. The protection coordination studies are based on the precise PowerFactory relay models in combination with advanced calculation tools and different protection diagrams.

The following studies are the main focus:

Evaluation and improvement of existing protection schemes for trans-mission, distribution and industrial networks

Detailed fault analysis under consideration of the dynamical behav-iour of the grid

Wide area protection studies

Integration of a management system for the protective relay param-eters using the software StationWare and setup of the bidirectional interface with PowerFactory.

REFERENCES

PETRONAS (Malaysia): Preparation of a concept study including basic, de-tailed and final design works of the Floating LNG-2 projects including load flow and short-circuit studies, motor starting, filter sizing, protection coordination and arc flash hazard calculation Oman Pump Services (Oman): Identification of a reliable starting sequence for large fire pumps ISLA/PDVSA (Curaçao): Concept study for restructuring and rehabilitation of the refinery plant network including the establishment of new locations for switchgear; modification of the cable routing and secure connection to the public network VCE (Island): Development of a simulation model for a fused-salt electrolysis Microchip manufacturer (Germany): Optimisation of a 20 kV plant network to increase network reliability and quality of supply PETRONAS (Malaysia): LNG Train 9 / Melaka, project extension; execution of complete design and integration studies to ensure a highly available plant network supply that is also capable of isolated operation Automobile manufacturer (Germany): Verification of the network design at different locations regarding short-circuit resistance and voltage stability during start up of large motors TSO (Bolivia): Protection concept and protection settings calculation for a 230/115 kV substation and a new 115 kV line PETROBEL (Egypt): Preparation of a protection concept for a refinery plant including calculation of robust protection settings Nuclear power plant (Germany): Development of a network model for the emergency power supply of the NPP, short-circuit calculations and calculation of reliable protection settings as well as EMT simulations to analyse voltage peaks and distortions Refinery plant in Northern Germany: Verification of the design and power supply of a grid expansion by steady-state and motor starting calculations


SIMULATION MODELS

The expansion of the renewable energy sources with inverter-based feed-in and the integration of large HVDC systems necessitate a detailed consideration of the grid dynamics in power system planning and for reliable power system operation planning. Accurate simulation models constitute an important basis and prerequisite for the success-ful realisation of the planning tasks. Furthermore, reviewing the compliance of the characteristics of generating units and generating plants with the respective grid codes is possible only on the basis of high-precision simulation models.

DIgSILENT develops simulation models, in particular for users of the PowerFactory software, based on the DSL or C++ programming language. The models are developed on the basis of technical data, construction drawings, thermal flow diagrams, control schematics, and plant and component measurements in particular as prerequisite for the validation of the model.

Simulation models can be provided as open, encapsulated, i.e. invisible, or compiled models. Typical model developments include:

Power plant models (generator with regulator, steam-electric power plant, gas turbine, hydraulic power plant, combustion engine, en-gine-based cogeneration plant, wind turbine, PV panel, storage, etc.)

Models of HVDC systems (EMT/RMS) and other electronic compo-nents including their controls

Protection devices and grid control systems

DIgSILENT assists with the development of complete power sys-tem models (transmission and distribution, smart grids, industrial networks, etc.) and carries out performance optimisations.

SMART GRIDS

Smart grids are currently in the initial development phase. DIgSILENT supports R&D activities throughout the world, in particular in the fields of co-simulation using ICT, virtual power plants, the operation of storage systems, the use of control system components for load control, and the implementation of procedures to optimise the integration of distributed generation, taking the power system planning and operation into account.

REFERENCES

Power plant models according to FGW/TR4: For well-known manufacturers from the wind and PV industry as well as industry for combustion engines more than 100 models for power generating units as well as components were developed and validated Grid operator (Bahamas): Development of high-precision models for a combustion engine as well as the generator control system including torsional oscillations and fast motor protection systems National load dispatcher (Bolivia): Development of power plant models for 52 units of the Bolivian network system (thermal and hydraulic installations as well as gas turbines and combustion engines); evaluation of measurements from 52 power plant units and model validation COBEE (Bolivien): Development of a Pelton turbine model with 1000 m drop height including pressure surge calculation; development of a model of the VATECH DTL 595 turbine controller; model validation based on measurements CDEC-SING (Chile): Development of power plant models for combined cycle power plants (e.g. Siemens V94.3A, ABB GT26) considering the large signal behaviour in particular; model validation based on measurements Manufacturer (Germany): Development of a model of the concentrating solar thermal power plants “Kaxu Solar One“ and “Xina Solar One“ (both 100 MW) for verification of the grid codes in South Africa Combustion engine manufacturer (Germany): Development of power plant models for two large combustion engine installations (276 MW and 256 MW) in parallel operation; evaluation of measurements and model validation Manufacturer (Switzerland): Development of a model for the voltage regula-tor of the series UTL; model validation based on measurements Inverter manufacturer (USA): Development of a model for the DVAR STATCOM with various control functions for the reactive power compensation


SYSTEM INTEGRATION

When generating units and consumers are to be integrated into the system, or the system is to be expanded on the basis of AC or HVDC systems, the applicable grid codes have to be complied with. Furthermore, it is important to analyse whether disturbances could be caused in the existing system in such a way as to necessitate a modification or adaptation of the respective grid code.

DIgSILENT has many years’ international experience in the realisation of system integration projects, characterised in particular by the wide variety of system characteristics to be considered, grid codes to be complied with, and generation and system technologies used.

DIgSILENT assists power system operators with the assess-ment of requests for grid connection and the frequently required review of the applicable grid code, and project developers in developing compliant grid connection concepts, including the design and dimensioning of all the components.

The services provided by DIgSILENT also include the prepa-ration of the preliminary and the final conformity analysis according to FGW Guideline TR4/TR8, including the required model validation.

GRID CODES

In order to ensure long-term system stability, the grid code has to be optimally aligned with the properties of the power supply system. The most important, decisive factors in this respect are the power system structure, the properties of the generating units and consumers, the long-term energy policy targets, and market mechanisms.

On the basis of qualified power system analyses and sensi-tivity calculations, DIgSILENT assists power system operators and regulatory authorities with the development of adequate and sustainable grid codes and operating regulations, and compliance with these regulations based on measurements and conformity assessments.

REFERENCES

Regulatory authority (Cape Verde): Development of a grid code for the Cape Verde Islands TSO (New Zealand): Verification and extension of the New Zealand grid code regarding the connection of offshore wind farms DNO (El Salvador): Development of a methodology for a network-compatible integration of PV systems in the low voltage networks Regulatory authority (Abu Dhabi): Development of a method for an evalua-tion of the primary and secondary control characteristics of power plants within the grid code IRENA (Abu Dhabi): Several studies regarding grid integration of PV and wind farms on the Maledives and the Pacific Islands Grid operator (Norway): Verification of the grid connection of a huge on-shore wind farm according to FIKS grid code Grid operator (Germany): Development of models of three-phase cables (150 kV/50 Hz, 150 kV/16.7 Hz) and HVDC VSC for the system study regarding the grid connection of offshore wind farms Regulatory authority and TSO (Costa Rica): Evaluation of technical and normative requirements for an increased integration of renewable energies DNO (El Salvador): Preparartion of a grid integration study for the hydraulic power plant Rio Sucio Project developer (Germany): Grid integration study for an offshore wind farm in the North Sea Project developer (Denmark): Identification and evaluation of reactive power requirements of an offshore wind farm in the Baltic Sea Grid operator in Curaçao (Aqualectra): Determination of the maximum possible expansion of wind and PV generation, including grid codes to be adjusted as well as grid codes of the existing power plant park Project developers (Germany): Preparation of numerous expert opinions proving the grid compatibility of wind and PV farms in Germany


POWER PLANT AND POWER SYSTEM MEASUREMENTS

In order to be able to operate systems steadily in the long term, the power plant properties defined in the grid code have to be complied with in all kinds of operating situations of the power system. In this context, determining the steady-state and dynamic behaviour of power plants and power systems based on measurements is becoming increasingly important. In addition to the approval of the properties of new plants, the measurement of system-defining existing systems is becoming ever more important. Within the framework of the conformity assessment of new generating units in industrial networks, it is necessary to determine the overall plant behaviour, taking the existing systems into account as well.

Besides the properties of the power plants themselves, the characteristics of the consumers and the interactions between the power plants and the consumers affect the parameters, and thereby the stability properties, of the power systems.

DIgSILENT has more than 30 years’ experience with power plant and power system measurements. Unit and plant measurements may cover the periods of transient fault behaviour and, in particular, the periods of operation of the spinning and non-spinning reserve. The required measuring know-how, also with respect to the subsequent modelling, is available for all generation processes, such as steam-elec-tric power plants, gas turbines, hydraulic power plants, and combustion engines as well as wind turbines and PV panels. Furthermore, DIgSILENT also carries out measurements in industrial networks with connected steam processes.

The measurements are planned and executed in line with the respective local situation and operational framework, aiming to minimise the non-availability of individual units and strictly preventing inadmissible network disturbances. The measure-ment programme depends on the objective of the analyses. This includes the review of properties according to the grid code, measurements to determine the steady-state and dynamic behaviour for model validation, the adjustment of regulator parameters (speed/power regulator, voltage regula-tor, PSS, etc.), and the determination of generator parameters.

REFERENCES

Chemicals company (France): Planning and execution of measurements on the back-pressure steam turbine to establish simulation models with the aim of rehabilitating the voltage regulation and turbine control and ensuring the plant capability for isolated network operation Grid operator (Bahamas): Execution of measurements on gas engines (en-gine control and voltage regulation), including modelling and validation with the aim of reliably avoiding sporadic power swings National load dispatcher (Bolivia): Power plant measurements on 52 plants of different generation technologies and performance categories (thermal, hydraulic, combustion engine, gas turbine) with the aim of verfiying the proper-ties in compliance with the grid code as well as simulation model validation Power plant operator (Bolivia): Measurements on a Pelton plant with 1000m drop height with the aim of a high-precision modelling (travelling wave model) for solving network stability problems including controller replacement and tuning Chemicals company (Spain): Planning and execution of measurements to es-tablish simulation models with the aim of rehabilitating the voltage regulation and turbine control as well as ensuring the plant capability for isolated network operation TSO (Chile): Measurements to determine and verify the characteristics of the primary control power including tests for validation of simulation models (5 steam power plants and combined cycle plants with capacities between 90 MW and 360 MW) Grid operator in Curaçao (Aqualectra): Measurements on steam turbines and combustion engines in connection with the determination of the dynamic behaviour of a separate network (120 MW); optimisation of boiler control and voltage regulation; execution of measurements to validate simulation models Petronas (Malaysia): Metrological evaluation of the plant behaviour of gas turbines of a refinery (voltage regulation and turbine control) including tuning of Power System Stabilizers (PSS)

DIgSILENT | System Integration Projects

GIS INTEGRATION

Geographic Information Systems (GIS) together with Asset Management Systems are the main sources of network topology and equipment data. Many utilities use GIS exports as a basis for the PowerFactory network model. These exports may comprise detailed substation data including topology, line/cable data, load/ generation data and GPS coordinates/schematic diagram information, etc.

The built-in Compare & Merge Tool and the versioning mechanism perfectly support the frequent data exchange with GIS.

PowerFactory Engines are directly integrated into GIS systems providing calculation functionality such as evaluation of renewable generation connected to the low voltage grid.

SCADA INTEGRATION

The PowerFactory OPC interface is utilised worldwide for real-time integration of PowerFactory with SCADA systems. The applications range from Online State Estimation, simulation mode functions (Dispatcher Load Flow, Contingency Analysis, Switching Validation) to Dispatcher Training Simulator with real-time transient grid simulation.

Controller manufacturers use the PowerFactory OPC interface for controller development, e.g. smart grid controllers, PV or wind farm control schemes.

BUSINESS PROCESS AUTOMATION

PowerFactory supports standard ENTSO-E operation planning processes such as D-2, D-1 and Intraday for TSOs and the corresponding GLDPM requirements for DNOs. All these processes can be run as fully automated parallelised process.

The ESB interface adapter features message-based data exchange such as load forecast, planned generator dispatch, day-ahead cross-border exchange programs, UCTE-DEF or CIM files according to the ENTSO-E profile CGMES, EMS snapshots, dynamic line rating and market coupling data.

The combined MV/LV calculation for the distribution grid of a whole country (>2000 MV substations) has been automated using PowerFactory and bulk data GIS exports.

INTEGRATION COMPONENTSThe PowerFactory Engine Mode provides complete PowerFactory functionality for external systems. The Engines can be controlled via the PowerFactory API and DPL or Python scripts. Various interfaces such as CIM, UCTE-DEF, OPC and DGS support bi-directional data exchange with different systems.

The ESB interface adapter connects to an Enterprise Service Bus enabling modern message-based data exchange.

The Engine Manager component provides access to multiple PowerFactory Engines via web services. The built-in queuing and scheduling simplifies the Engine integration into other applications.

Our DIgSILENT products PowerFactory and StationWare are used by our customers in complex business processes and use data from other information systems (GIS, SCADA, etc.). In close cooperation with the customer, the DIgSILENT project team develops customer-specific integration solutions that enable centralised and efficient data management and the automation of processes.

As your partner, DIgSILENT will assist you with projects regarding the integration of PowerFactory and StationWare into your processes and IT environment, from the requirements analysis to the solution design and the implementation and delivery of comprehensive solutions. If required, our integration experts also cooperate with the manufacturers of the systems to be integrated. DIgSILENT has many years’ experience and well-established contacts with system manufacturers in this respect.

DIgSILENT customerDIgSILENT of�cesPartners and representatives

DIgSILENT offers a series of standardtraining courses at its offices in Germany. These cover aspects of modelling, network planning and network optimisation and provide an opportunity to gain familarisation with complex areas of power system analysis, as well as allowing customers to benefit from the experience of the DIgSILENT experts.In addition to these standard courses, there is a wide range of user-specific training modules available, covering specific PowerFactory functions.All training courses are designed and delivered by our international DIgSILENT team of experts from various disciplines.

DIgSILENT GmbHHeinrich-Hertz-Straße 972810 GomaringenGermany

PHONE+49 7072 9168-0 (Switchboard) +49 7072 9168-23 (Sales)+49 7072 9168-88 (Fax)

MAIL [email protected] www.digsilent.de

DIGSILENT WORLDWIDE

CONTACT

DIgSILENT | Training Courses

STANDARD AND USER-SPECIFIC TRAINING

Power system standard training courses∙ Load flow and short circuit calculation∙ Stability of AC and DC networks∙ Grid connection of renewable energy∙ Protection∙ Harmonics∙ Electromagnetic Transient Analysis∙ Overvoltages and insulation coordination

Wide range of user-specific training courses available on request

Modular training concept that addresses all the PowerFactory functions

All training courses are offered at DIgSILENT offices as well as at user‘s site (requires network licence)

DIgSILENT | Company Profile

DIgSILENT GmbHHeinrich-Hertz-Straße 9

72810 GomaringenGermany

T +49 7072 9168-0F +49 7072 9168-88

[email protected]

DIgSILENT GmbH is certifiedto the ISO 9001:2015 standard.

More information is available at www.tuv-sud.com/ms-cert.

DIgSILENT is a consulting and software com-

pany providing engineering services in the field

of electrical power systems for transmission,

distribution, generation and industrial plants.

DIgSILENT was founded in 1985 and is a fully

independent and privately owned company

located in Gomaringen/Tübingen, Germany.

DIgSILENT continued expansion by establish-

ing offices in Australia, South Africa, Italy,

Chile, Spain, France, the USA and Oman, there-

by facilitating improved service following the

world-wide increase in usage of its software

products and services. DIgSILENT has estab-

lished a strong partner network in many coun-

tries such as Mexico, Malaysia, UK, Switzerland,

Colombia, Brazil, Peru, China and India. DIgSI-

LENT services and software installations have

been used in more than 150 countries.

DIgSILENT PowerFactory

DIgSILENT develops the leading integrated

power system analysis software PowerFactory,

which covers the full range of functionality

from standard features to highly sophisticat-

ed and advanced applications including wind

power, distributed generation, real-time

simulation and performance monitoring for

system testing and supervision. For wind power

applications, PowerFactory has become the

power industry’s de-facto standard tool, due

to PowerFactory models and algorithms pro-

viding unrivalled accuracy and performance.

DIgSILENT StationWare is a reliable cen-

tral protection settings database and asset

management system, based on .NET technol-

ogy. StationWare stores and records all set-

tings in a central database, allows modelling

of relevant workflow sequences, provides

quick access to relay manuals, interfaces

with manufacturer-specific relay settings and

integrates with PowerFactory, allowing pow-

erful and easy-to-use settings coordination

studies.

DIgSILENT Monitoring Systems

Our Power System Monitoring PFM300 product

line features grid and plant supervision,

fault recording, power quality and grid char-

acteristics analysis. The Grid Code Compliance

Monitoring PFM300-GCC product has been de-

signed for continuous compliance auditing of

power plants with respect to grid code require-

ments, thereby providing plant operators and

utilities utmost transparency and non-compli-

ance detection.

DIgSILENT Consulting

DIgSILENT GmbH is staffed with experts of

various disciplines relevant for performing

consulting services, research activities, user

training, educational programs and software

development. Highly specialised expertise is

available in many fields of electrical engineer-

ing applicable to liberalised power markets

and to the latest developments in power

generation technologies such as wind power

and distributed generation. DIgSILENT has pro-

vided expert consulting services to several pro-

minent PV and wind grid integration studies.

DIgSILENT Consulting and Training

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