57161-10_ETS - 05 a Scada and Communication

Document No. 57161-10 Case 10/4054 - ETS-05 v.3

Offshore Substation

SCADA and Communication

ETS-05 Rev. 3

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Document No. 57161-10 Case 10/4054 - ETS-05 v. 3

Revision survey

Document title SCADA and Communication

Document no. 57161-10

Target group Fabrications Contractors and Designer for Offshore substations.

Revision Document status

Writer Reviewer Approver

Init Date Init Date Init Date

1 Approved N/A 12.10.09 N/A N/A JEJ 12.10.09

2 Approved N/A 12.10.09 N/A N/A SGH 17.11.10

3 Approved xomo 15.11.12 POB, POD, TKL, TAN, SGH, XBOH

15.11.12 JEJ 15.11.12

Minor alterations, type errors, rephrases' e.t.c where the meaning of the text is left

unchanged are not shown.

Appendix no. and description Revision

None

Document No. 57161-10 Case 10/4054 - ETS-05 v. 3

Table of contents

1. Scope 4

2. References 4 2.1 Statutory Regulations 4 2.2 Codes and Standards 4

3. Definitions and Abbreviations 4 3.1 Definitions 4 3.2 Abbreviations 5

4. Design Requirements 5 4.1 Environmental conditions 5 4.2 General design 6

4.2.1 SCADA system 6 4.2.2 Energinet.DK onshore SCADA control and monitoring 6 4.2.3 Wind farm owner SCADA control and monitoring 6

4.3 SCADA design and construction 7 4.3.1 Design 7 4.3.2 Construction 7

4.4 SCADA functional requirements 9 4.4.1 Information management system 9 4.4.2 Human machine interface 10 Application program development and configuration 12 4.4.3 12

4.5 SCADA system requirements 12 4.5.1 Change management and access rights 12 4.5.2 Hardware 12 4.5.3 Software 13 4.5.4 Spare capacity 13

4.6 Communication Systems 13 4.6.1 General 13 4.6.2 Telephone System 14 4.6.3 VHF System 14

4.7 Other requirements 14 4.7.1 Inspection and tests 14 4.7.2 Documentation 15 4.7.3 Packaging for transport 15

5. Certificates / Data books 15 5.1 General 15

6. Topology diagram (typical) 16

Document No. 57161-10 Case 10/4054 - ETS-05 v.3 4/17

1. Scope

This technical standard specifies the basic requirements for the Supervisory Control

and Data Acquisition system (SCADA) to be used on an offshore located Substation.

Further requirement for communications equipment/System on the Substation is

described.

2. References

2.1 Statutory Regulations

2006/95/EC Low Voltage Directive (LVD)

2004/108/EC EMC Directive

2.2 Codes and Standards

IEC 60092 Electrical installations in ships

IEC 60364 Low voltage electrical installations - Protection for safety

and protection against electric shock.

IEC 60529 Degrees of protection provided by enclosures (IP Code)

IEC 60870 Tele control equipment and systems

IEC 61000 Electromagnetic compatibility (EMC)

IEC 61892 Mobile and fixed offshore units – Electrical installations

IEC 61850 Communication, networks and systems in substations

3. Definitions and Abbreviations

3.1 Definitions Shall: Verbal form used to indicate requirements to be strictly followed in

order to conform to the standard and from which no deviation is

permitted, unless accepted by all parties.

Should: Verbal form used to indicate that among several possibilities one is

recommended as particularly suitable, without mentioning or

excluding others, or that a certain course of action is preferred but

not necessarily required.

May: Verbal form used to indicate a course of action permissible within the

limits of the standard.

Can: Verbal form used for statements of possibility and capability, whether

material, physical or casual.

Employer: Energinet.dk


3.2 Abbreviations

ABA “Automatisk Brand Alarm system” Automatic fire alarm system

CCTV Closed Circuit Television

CPU Central Processing Unit

HMI Human Machine Interface

HVAC Heating, Ventilation and Air Conditioning

IMS Information Management System

RCC Remote Control Centre

RIO Remote Input Output system

UPS Uninterruptible Power Supply

VDU Visual Display Unit

LAN Local Area Network

LOS Line of Sight

VoIP Voice over Internet Protocol

4. Design Requirements

4.1 Environmental conditions The Substation will be located in an offshore environment.

Design conditions for facilities and systems outdoor are: Minimum temperature: -10°C Maximum temperature: +25°C Relative humidity 70 - 100 % RH

Atmosphere: Marine - Saliferous Max. wind speed: 30.9 m/sec / 10 minutes mean (50 years return

period) @ 10 m above sea level

Although the complete SCADA system will be located indoor in rooms with HVAC,

outdoor conditions may occur in case of loss of HVAC. Hence the SCADA system and

the components installed therein shall be suitable for use in limited periods in said

environment.


4.2 General design

4.2.1 SCADA system The SCADA system shall be divided into two individual systems, one for control and

monitoring of Energinet.DK equipment and one for control and monitoring of the

Wind farm owners equipment.

The SCADA system shall provide input facilities for the monitoring of all the various

equipment whether it is digital, analogue or bus transmitted signals.

Further the SCADA system shall provide control of all the various equipment either

by programmed control functions or by operator intervention.

4.2.2 Energinet.DK onshore SCADA control and monitoring The following list of equipment is to be monitored and controlled by Energinet.DK is

for guidance only; the actual equipment list may vary from this:

HV switchgear

MV switchgear

LV switchgear

LV transformers

UPS systems

ABA system

On site standby diesel generator

Fire water pumps

Fire water valves

Diesel tanks

Drain tank

Oil/water separator

HVAC system

Navigation aid system

CCTV system

Weather station

4.2.3 Wind farm owner SCADA control and monitoring Equipment to be monitored and controlled by the wind farm owner is:

HV switchgear

MV switchgear

Turbines in the wind park


4.3 SCADA design and construction

4.3.1 Design The design of SCADA shall be based on a distributed system with the use of

programmable RIO systems which communicates to a set of redundant

concentrators.

The RIO systems shall be used for monitoring and control of the HV Transformer

bay, for HV line bay and for miscellaneous platform auxiliary equipment.

The redundant concentrators shall handle all communication concerning monitoring

and control on the following systems:

HV transformer

HV line

Platform monitoring

HV protection relays

ABA system

Emergency diesel generator

Weather station

Navigation aids

LV switchgear

Local service computer (HMI)

Energinet.DK onshore control room

Wind farm owner onshore control room

The interface between the SCADA system and auxiliary systems can be carried out

either hardwired or through an appropriate and agreed upon communication

protocol.

The preferred protocol and media for Energinet.dk is Modbus-RTU, transmitted on

RS-485., fibre based. Energinet.dk is master, and the auxiliary equipment must be

slave.

If other protocols are considered, then Energinet.dk has to approve.

4.3.2 Construction The complete SCADA system shall be contained in a number of dedicated cabinets.

All cabinets shall be of a standard type sized 2100x800x600mm (HxWxD) with

glazed doors. The height of 2100mm includes a 100mm base/plinth.

All cabinet assemblies for floor mounting shall have a 100mm base with predrilled

holes for bolting directly on a steel support welded to the deck.

Cable access shall be from the bottom of the panels if the room is with false floor –

otherwise cable entry is to be from top.


Each cabinet shall have a Cu earth bar running in the entire length of the termination

section. The earth bar shall be pre drilled and treaded for easy mounting of earth

wires with cable lugs.

Except for the cabinet for optical fibre termination and the cabinet for the IMS

computer which both shall have fixed frames, all cabinets shall have left hinged

frames.

Cabinet colour shall be RAL 7035.

All cabinets containing active equipment shall be ventilated by means of an active

fan and temperature measurement which shall be monitored by the SCADA control

system. These cabinets shall have a filtered air intake in the base/plinth of the

cabinet and a raised roof for air vent in top of the cabinet.

All cabinets shall have an internal light fitting connected to a door switch.

The 230 V AC for internal lighting, ventilation fan and socket outlet for service shall

be supplied from one of the lighting and small power switchboards.

In addition to above the individual cabinets shall be equipped as follows:

SCADA concentrator cabinet:

This cabinet shall contain the redundant SCADA concentrators.

The cabinet shall have two independent CPU chassis.

Power supply for the active equipment shall be dual 48 V DC from each of the

48 V DC UPS systems.

Auxiliary equipment cabinet:

This cabinet shall contain the GPS clock synchronization, the 1 A fuses for 48 V

DC distribution, the N-port server and the electric/optic isolation equipment.



Communication equipment cabinet:

This cabinet shall contain the SDH equipment for the single mode fibre optic

communication, the LOS radio link, the channels for communicating relay

protection and channels for communicating the IP, all in a redundant

configuration.



Main distribution frame (MDF)

This cabinet shall contain the patch panel termination points for all CAT5 IP

distribution outlets in order to assign the outlets to the correct ports on the

switch/router.

There is no active equipment in this panel.


Optical fibre termination cabinet:

This cabinet shall contain the termination points for all optical fibres.

Multimode (MM 62,5ųm) fibre shall be used locally and single mode (SM 9ųm) is

used in the HV cable to/from shore.

From this cabinet single mode cabling is distributed to the SDH equipment in the

communication cabinet.


HMI/IMS Computer cabinet:

This cabinet shall contain an industrial type computer suitable for 19” rack

mounting. The computer shall have dual screen graphics card.

The computer cabinet shall be accessible from the rear side.

Power supply for the computer shall be from 230 V AC UPS system.

ABA cabinet:

This cabinet shall contain the automatic fire alarm system.

Power supply for the computer shall be from 230 V AC UPS system.

Cross wiring field cabinet:

This cabinet shall contain a set of terminals for termination of all the hardwired

I/O signals from various equipment. Another set of terminals shall via cross-

wiring in the cabinet interface the signals to the SCADA control system.

Interface shall be via 20x2x0,6mm2 cable.


In addition to the cabinets, the SCADA system shall include the HMI operator station

which consists of 2 VDU’s, a mouse, a keyboard and a printer.

The VDU’s (22” high resolution screens), the mouse (wireless laser) and keyboard

(Danish type) and the printer (Ink jet A4) shall be located on a desk positioned up to

10m from the computer.

Connection from computer to screens shall be by coax cable and from the computer

to mouse, keyboard and printer the cable shall be a CAT5 type.

4.4 SCADA functional requirements

4.4.1 Information management system The IMS shall be integrated in the computer which is also handling the HMI.

The IMS shall have programming tools that make it easy to create historical reports

for blockings, production data, operational logging, maintenance data and alarms

with searching and sorting facilities etc.


The IMS shall receive process and store data of all monitored and controlled

equipment on the platform.

The IMS shall also receive and store data from the ABA system.

Typical IMS functionality is:

Long term storage of alarms and events.

Trend data storage.

Long term storage of selected measurement values.

Alarm analysis.

Administrative tasks.

4.4.2 Human machine interface

The HMI on the platform shall primarily be used as the local operator station, but it

should also be possible to use the HMI as engineering station for software updates to

the SCADA system.

The operator dialogue shall be designed to avoid performing actions unintentionally.

It shall be easy to navigate between displays jumping directly from one display to

any other.

The system shall give feedback to the operator that a command has been registered

and that processing has started.

Data entries should be validated by the system, e.g. that an entered set point is

within the permissible parameter range. When an entry is invalid an advisory

message shall appear indicating the error.

The display screens shall present the information consistent with their function to

achieve secure process control and supervision.

Displayed texts shall be in English.

Issues such as display title, amount of information on the display screen, background

colour, grouping of information, etc. shall be agreed with Energinet.DK.

The display update rate shall be configured to match the dynamics of the process.

However, dynamic alphanumeric values shall not be updated more frequent than

once per second.

The display system shall allow for three levels of displaying. An overview from which

it shall be possible to go directly to a specific system from which it shall be possible

to go directly to a specific function or object.


Colour coding of information shall be provided to make it easy for the operator to

distinguish between different categories of displayed data.

Colour table for electrical systems:

400 kV Red RAL code pending

220 kV Green RAL 6018

150 kV Black RAL 9005

35 kV Blue RAL 5012

400/230 V AC Yellow RAL 1016

230 V UPS Brown RAL 8028

48 V DC UPS Orange RAL 2004

Colour table for alarm/event categories:

Action alarm Red

Warning alarm Yellow

Fault alarm Light blue

Suppressed Blue

Blocked Blue

Conflict Red

The operator shall be able to generate a hardcopy print of any display screen.

It shall as a minimum be possible to printout alarm lists and event lists without using

the screen dump facility.

The number of alarms during abnormal conditions shall be reduced by alarm

processing/suppression techniques in order to have operator attention to the most

critical alarms that require operator action.

The system shall be able to group alarms and events occurring on a system display

and present the resulting alarm and event function on the overview display according

to the display hierarchy.

The system should also facilitate a direct jump for any alarm from the alarm list to

the applicable display.

The system shall offer means for alarm annunciation such as acoustic and flashing

symbol and visually on VDU displays, alarm overviews and on alarm lists.

Through the display system the operator must be able to easily identify alarm state,

i.e. new, acknowledged, or cleared.

Acknowledging an alarm shall stop the flashing and the audible signal.


Events and alarms shall be time tagged in order to identify correct order of sequence

of events.

It shall be possible to trend all variables and both real time and historical trend

displays shall be available. Time windows and sampling intervals shall be user

selectable.

It shall be possible to show several variables in the same trend display.

Blocking and suppression shall be possible for the individual alarms and the system

shall enable the operator to trace where blocking/suppression is active.

4.4.3 Application program development and configuration

The system programming tool shall at least have the following features:

On-line modification of application program without stopping the SCADA unit.

On-line change of parameters.

Load, upload and modifications of application programs via SCADA network.

VDU graphics configuration tool.

Start/stop of application programs.

On-line verification of application in programming tool and application running in

executing SCADA unit.

Self documenting facilities with provisions for application program revision

control and traceability.

4.5 SCADA system requirements

4.5.1 Change management and access rights

The system shall be able to handle different levels of access rights to prevent

unauthorised manipulation of specific systems or system attributes such as controller

parameters, alarm limits, etc.

4.5.2 Hardware The number of different types of hardware modules shall be limited to ease

maintenance and spare part handling.

To minimise cabling between equipment and central control system programmable

RIO’s should be used where applicable.

Field devices should be powered from SCADA.

I/O cards shall have galvanic isolation between field and CPU side.

No single defect or failure in any I/O card shall affect any other I/O card.

Short circuit in the field shall not damage the I/O cards.


All I/O cards shall be replaceable under full operating conditions without the

requirement for SCADA system shutdown. Also installation of additional I/O cards

shall be possible without shutdown.

4.5.3 Software

A warm start-up of SCADA shall be with predefined output signals. Cold start-up and

reboot time shall take less than 30 minutes including loading of any system software

and application program.

4.5.4 Spare capacity Spare capacity shall be measured at the time of final detailed design.

All control units shall have a minimum of 20% spare I/O’s. Spare I/O’s shall be

measured per type of I/O.

For a well defined mechanical package a lower quantity of spares may be accepted.

Requirements regarding spare capacity for communication links shall be as for I/O’s.

CPU load (Percentage of time available for application program) shall not exceed

75%. The load should be measured as an average over a period of twice the slowest

scan rate in use.

The control unit memory shall have a minimum of 50% spare capacity. It shall be

possible to expand the memory without any change of application programmes and

degradation of system performance.

The telephones shall be connected to the “communication equipment panel” via Local

Area Network connector sockets in each room.

4.6 Communication Systems

4.6.1 General

All communication of internet, intranet and Platform monitoring and control data

shall be via an optic fibre integrated in the HV submarine cable to shore.

Further a Line of sight (LOS) communication system shall have to be established as

a back up to the optic fibre communication. Alternatively satellite communication

may have to be considered, all depending on the Platform location and an evaluation

of the most feasible communication means.

A LAN data network shall be established on the Platform. The LAN shall be used for

the telephone system and for the CCTV system as well as for various technical

subsystems. LAN shall be accessible from all rooms. LAN cable runs outdoor shall be

fibre cables.


4.6.2 Telephone System Stationary VoIP telephones shall only be installed in selected indoor areas.

Wireless telephone transceivers (DECT base stations) shall be installed for coverage

of all indoor areas.

The telephones shall be connected to the “communication equipment panel” via Local

Area Network connector sockets in each room.

4.6.3 VHF System

To enable staff on the Platform to communicate with service/supply boats and

helicopters and to make emergency calls the Platform shall be equipped with three

VHF radios.

One stationary VHF radio shall be installed in the staff room. It shall have a fixed

antenna mounted on the top deck and a coax cable routed to a connector located

close to the radio.

Two portable VHF radios with rechargeable batteries shall be based in indoor where

the battery charger shall be located. Location to be agreed.

4.7 Other requirements

4.7.1 Inspection and tests Test and simulation equipment shall be available for the I/O’s configured.

Facilities for measuring of dynamic loads of SCADA unit, communication system and

HMI/IMS system shall be available during the tests.

The tests shall be performed hierarchically, starting with SCADA unit test, then

system tests and finally integration test.

All I/O’s shall be tested from the field side of the SCADA units.

The SCADA unit test shall comprise a test of hardware and software applications of

all units, including applications on HMI/IMS.

In the system test all SCADA units shall be tested together. All I/O’s shall be

simulated and the test shall include all inter-unit signals.

The integration test shall cover a full functional test of all systems and a test of

system fault monitoring. During the complete system test the dynamic bus and CPU

load shall be measured.


The SCADA system supplier shall at least 4 weeks before test will take place issue a

test procedure for Energinet.dk to comment and approve. All tests shall be

performed in accordance with the approved test procedures.

All tests shall be documented.

4.7.2 Documentation All equipment and software shall be fully documented.

4.7.3 Packaging for transport

The equipment supplier shall be responsible for the packing of all equipment for

shipment and possible storing and for providing the equipment at the destination in

ex-works condition.

5. Certificates / Data books

5.1 General The final documentation shall be split up in one or more data books containing all

relevant information concerning the equipment and one or more data books

containing all relevant information concerning software.


6. Topology diagram (typical)

Notes: 1. Communication to RCC.

All information and actions to/from RCC shall be transmitted on this

communication link in accordance to IEC 60870-5-104, and IEC

61850.

2. Communication to local HMI.

All information and actions to/from RCC shall also be available on this

communication link in accordance to IEC 60870-5-104.

3. Communication of indications and alarms only in accordance to IEC

60870-5-103.

4. Communication to/from Switchgear, transformer and platform utilities

in accordance to IEC 60870-5-101.

5. Communication to/from Wind farm owner equipment to be agreed

upon, only info available for Energinet.DK.

6. Communication to/from various platform systems via modbus or

similar.


7. Radio transmitted communication to shore is optional and could either

be based on LOS or satellite communication.

57161-10_ETS - 05 a Scada and Communication

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Transcript of 57161-10_ETS - 05 a Scada and Communication