AIT Smart Grid Converter(SGC) Controller featuring...

AIT Smart Grid Converter(SGC) Controller featuring SunSpec protocol support utilizing Hardware-in-the-Loop (HIL) technology

Roland Bründlinger, Ron Ablinger, Zoran Miletic AIT Austrian Institute of Technology SunSpec Meeting September 13, 2016

Contents

§  PV and DER grid integration – challenges and opportunities with advanced grid support features

§  AIT Smart Grid Converter HIL technology – overview and features

§  Use case – C-HIL based testing of SGC using SunSpec ModBus communication

§  Summary

2 2

Contents




§  Summary

3 3

Today’s challenges of DER and PV grid integration

§  On the overall power system level §  Managing variability of RES §  Matching supply and demand §  Ensuring frequency stability §  Ensuring security of supply

§  On the local distribution level §  Managing voltage profiles §  Avoiding overloading of

components §  Transforming passive to active

grids §  Integrating PV in Smart Grid

concept

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Grid support features are the key to the sustainable grid integration of DER and PV

§  Latest grid codes and interconnection standards demand for PV and DER to provide advanced grid support features §  Voltage control §  Frequency control §  Response to abnormal situations (LV/HVRT,

FRT,...) §  Remote control and communication features §  ...

§  Site specific requirements from utilities taking into account the characteristics of the local grid §  Additional grid support functionalities §  Non-standard settings §  ...

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Example: Development of selected European National Requirements

Country Germany

Italy Austria France Spain Europe NC RfG

Function 2008-2015 2014 2016 2013 2014 2016 2016

P at low f Yes Yes Yes >5MW No Yes Yes (ABCD)

Frequency-Watt

Yes Yes Yes No >2/10MW Yes Yes (ABCD)

Q/PF Yes Yes Yes Yes >2/10MW Yes Yes (BCD)

Volt-Var optional Yes Yes No No Yes Yes (BCD)

Remote Watt

>100kW Yes >100kW No >2/10MW Yes Yes (BCD)

Volt-Watt No Optional Yes No No Optional No

Rem. Trip optional Yes No No No Yes Yes (ABCD)

LVRT Yes Yes Yes >5MW >2MW Yes Yes (BCD)

HVRT No Yes No No No Yes No

Reference BDEW MV Guideline (2008) and amendments

CEI 0-16:2014 CEI 0-21:2014

TOR D4:2016 Arrêté du 23 avril 2008 ...

P.O.12.3:2006; P.O.12.2: RD1565:2010; UNE 206007-2 IN:2014

CLC/TS 50549-1/2 (2016)

Final Version RfG 2015

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Overview of Advanced Grid Support Functions §  Autonomous: Inverter response to local voltage and frequency conditions §  Commanded: Remote control (e.g., on/off, set power factor) §  Utilities will modify distributed energy resource (DER) behavior using

communications.

7 Advanced functions as defined in IEC TC 61850-90-7, *with the exception of FRT.

How do we effectively apply the new functions to achieve an optimum integration? (1/2)

§  Challenges for Utilities §  Considering advanced grid support features in an interconnection study

or grid simulation §  Defining the optimum settings for a certain site §  Determining the impact of local grid support on the overall power system §  Integrating DER/PV communication in the control systems §  Ensuring the DER/PV actually do what they are requested to do

§  System integrators §  Implementing the requested advanced grid support features on-site §  Selecting of right components (inverters, control systems,

communication equipment...) §  Proofing the appropriate implementation of advanced grid support

functions towards the utility §  Minimizing costs

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How do we effectively apply the new functions to achieve an optimum integration? (2/2)

§  Challenges for Equipment manufacturers §  Handling an ever increasing complexity of requirements coming from

grid codes, standards and utilities §  Implementing grid support features into existing and new products §  Reliably maintaining the different settings in practice §  Meeting testing, validation and certification requirements

§  Testing laboratories §  Designing test procedures for increasingly complex products and

systems §  Maximizing test coverage while limiting resources (laboratory use), time

and costs §  Testing DER equipment with increasing power capacities §  Validating simulation models

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Contents




§  Summary

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AIT Smart Grid Converter (SGC) Controller utilizing Hardware-in-the-Loop (HIL) technology

§  Value proposition §  Perform grid integration studies and

research within a HIL environment on your desktop

§  Overcome the challenges of smart grid and micro grid integration with the flexible and reconfigurable AIT SGC control platform

§  Test and validate custom power system and microgrid applications

§  All-in-one Controller-Hardware-in-the-loop (C-HIL) solution for applications in industry, utilities, national laboratories and academia

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AIT Smart Grid Converter (SGC) Controller HIL Connect Block diagram and connectivity

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AIT Smart Grid Converter (SGC) Controller HIL Connect Inverter topology and model

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Grid/power system model variable impedances,

transformer connections etc.

Inverter model 3 phase 3 leg NPC topology, filters, etc.

PV model cell tech, G,

T

AIT Smart Grid Converter (SGC) Controller HIL Connect Features and capabilities

§  Currently available §  Full four quadrant operation §  Per-unit setting of parameters allows to vary

inverter rated power from a few kWs up to MWs §  Active/Reactive power: full circular capability §  Immediate control: Conn, P, PF, Q (different modes), Volt-Var/Q(U), §  Frequency control: Frequency-Watt/P(f) §  Low/High Voltage ride trough with Fast Reactive Current Response §  SunSpec compliant interface supporting inverter control functions

§  Under development §  Primary frequency regulation §  Synthetic (virtual) inertia §  Grid forming capability

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AIT Smart Grid Converter (SGC) Controller HIL Connect SunSpec and SCADA features

§  Supports SunSpec System Validation Platform (SVP) tool set and python test script methodology used in National and International Advanced Grid lab programs (collaboration with Sandia National Laboratories)

§  Supports other SCADA protocols including Modbus TCP and IEC 61850 §  Settable grid configuration for worldwide application support

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Supported SunSpec models 001 SunSpec Common Model 103 SunSpec Inverter (Three Phase) Model 120 SunSpec Nameplate Model 121 Inverter Controls Basic Settings 122 Inverter Controls Extended Measurements and Status 123 Immediate Inverter Controls 126 Inverter Controls Static Volt‐VAR Arrays 134 Inverter Controls Frequency-Watt Controls

Contents




§  Summary

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Prop. comm.

Interface

Proprietary remote control

Use-Case: Inverter Interoperability Testing Traditional laboratory approach

EUT PV Inverter

Command

Response

Meas

Dat

a A

cqui

sitio

n S

yste

m

Meas

PV Array Simulator

Grid Simulator

SunSpec Modbus Interface

SVP

SunSpec Validation Platform

Use-Case: Inverter Interoperability Testing Automated testing using SunSpec Validation Platform

Command

Response

Meas

Dat

a A

cqui

sitio

n S

yste

m

Meas

Control commands

Control commands

PV Array Simulator

Grid Simulator

EUT PV Inverter

AIT SGC HIL Connect and Typhoon-HIL

SunSpec Modbus Server

SVP

SunSpec Validation Platform

Use-Case: Inverter Interoperability Testing AIT SGC HIL Approach

SGC Control Board

Command

Response

C-H

IL D

AQ

PV Array Simulator

Grid Simulator

Benefits of using AIT C-HIL approach for Smart Inverter Interoperability Testing

§  Validate and test advanced grid support functions on your desktop §  Rapid and concurrent development of controls & application software §  Increased test & validation coverage §  Automated software regression testing §  Develop and test SunSpec controls using ASGC SunSpec server §  Pre-certification control design verification testing

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Offline design and simulation of

controls

C-HIL based controls and communication

testing Full-Scale lab testing

of the device

Demonstration of AIT SGC converter capabilities using SunSpec Validation Platform and Dashboard

§  Immediate controls (SunSpec model 123) §  INV1 Connect/Disconnect §  INV2 Adjust maximum generation level (“Power limitation”) §  INV3 Adjust power factor (min. capacitive and inductive) §  VarPct Fixed VAr setting (as % of rated active power or available VArs.)

21 9/19/16 1) J. Johnson S. Gonzalez, M.E. Ralph, A. Ellis, and R. Broderick, “Test Protocols for Advanced Inverter Interoperability Functions – Appendices,” Sandia

Technical Report SAND2013-9875, Nov. 2013.


§  VV12 Volt-Var control (Var priority)

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1) J. Johnson S. Gonzalez, M.E. Ralph, A. Ellis, and R. Broderick, “Test Protocols for Advanced Inverter Interoperability Functions – Appendices,” Sandia Technical Report SAND2013-9875, Nov. 2013.


§  VV12 Volt-Var control (Var priority) §  tests made with defined voltage-time profile 1)

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1) J. Johnson S. Gonzalez, M.E. Ralph, A. Ellis, and R. Broderick, “Test Protocols for Advanced Inverter Interoperability Functions – Appendices,” Sandia Technical Report SAND2013-9875, Nov. 2013.

Contents




§  Summary

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Summary: Typical applications §  Utilities and system integrators:

§  Perform grid integration studies with advanced grid support functions §  Use for microgrid and power system studies and research §  Investigate power system interaction of single or multiple DERs

§  Equipment Manufacturers: §  Add SunSpec protocol support to existing products (retrofit) §  Use SGC as reference design for new products §  Development support for plant controller and EMS

§  National laboratories and universities §  Use generic converter model for DER integration research §  Reference design of a SunSpec compliant grid converter §  Validate power system control strategies §  Development of test procedures

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Summary: How the AIT SGC HIL connect addresses your application needs §  Industrial and academic R&D, design and validation of test procedures...

§  AIT SGC HIL connect as All-In-One solution for R&D applications §  Using AIT SGC HIL connect to perform R&D on SunSpec

communication... §  Equipment and Software: HIL-Connect, Typhoon HIL, AIT SGC R&D

license §  Adding SunSpec compliance to existing products (e.g. PV inverters)

§  Use AIT SunSpec Server software package portable to customer specific platform

§  During product development and testing §  Use AIT SGC controller as reference for the design new products §  Support development, testing and validation of control and

communication equipment (e.g. plant controllers, gateways...)

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SIRFN Smart Grid Collaboration

§  Primary goal: Develop and demonstrate a consensus-based interoperability certification standard DERs. §  Design and compare advanced interoperability test-beds. §  Perform round-robin testing of advanced DER. §  Compare test results, communications methods, and

automation procedures. §  Develop test procedures for advanced DER with the goal

of becoming an internationally-accepted standard. 27

SIRFN - A coordinated network of smart grid

research facilities from: IEA (International Energy Agency)

Clean Energy Ministerial (CEM)

International Smart Grid Action Network (ISGAN)

Smart Grid International Research Facility Network (SIRFN) Smart Grid Distribution Automation

Power Systems Testing

Advanced Laboratory Testing Methods

Test Protocols for Advanced Inverter Functions

Acknowledgements and special thanks

§  Jay Johnson at Sandia National Labs §  Ryan Deyo and people at Typhoon HIL §  Tom Tansy, TJ Keating and Bob Fox at

SunSpec Alliance

§  Austrian Ministry for Innovation for funding AIT‘s activities in ISGAN-SIRFN and the development of SGC

§  Thank you!

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Many thanks for your attention! Looking forward to welcome you at the demo (starting at 1.30 pm)

Roland Bründlinger AIT Austrian Institute of Technology Giefinggasse 2, 1210 Wien, Austria [email protected]

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