substation automation by: bccambalon 1bcc substation automation bcc mapping of data-points for scada...

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Substation Automation

By: BCCambalon

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•Mapping of Data-points for SCADA RCC & ACC according to CMC• Point – to- Point Testing M

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• OS- Windows XP, Client Server•Database- MS SQL• SA - SCADA Software •Editor- System Configuration Editor (SCE)•Substation Maintenance Tools (SMT)•BCU –Conformance with IEC 61850 •Intelligent Electronic Device (IED) Meter – Modbus Protocol•IED Protection Relay – IEC 60870-5-103 Protocol• RCC/ACC Gateway remote SCADA link – DNP 3.0 Protocol

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Topic Outline

• Introduction• Substation Functions• Trends in Technology• IEC 61850 Architecture and Protocols • Typical Substation Automation System• Bay Control Unit (BCU)• LN Functional Architecture• Substation Configuration Language (SCL)


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PROCESS

•Circuit Breakers•Disconnects•Transformers

• BCUs • IEDs• Relay Protections• Electronic Meters

•Gateway•Server•Workstation s (UI)

BAY

STATION

EQUIPMENT LAYERS

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Introduction Substation Automation (SA) is a system to

enable an electric utility to remotely monitor, control and coordinate the distribution components installed in the substation.

High speed microprocessor based Remote Terminals Units (RTUs) or Intelligent Electronic Devices (IEDs) are used for substation automation and protection.

These IEDs are installed in strategic locations for collection of system data and automatic protection of substation equipment.

IEC 61850 - Substation Automation

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Data communication between the control centre and IEDs in remote locations and among the IEDs becomes an important issue to realize the substation automation functions.

Various protocols are used for tele-control purpose, but none of them fully support the interoperability among IEDs supplied by different vendors in the substation.

These protocols are Modbus, Modbus Plus, DNP 3.0, and IEC 60870.


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Interface to the switch yard equipment Control and monitoring of the switch yard eqpt. Alarms and Recording Protection of the power equipment Revenue metering Automation functions

Types of Substation Automation System


Microprocessor-Based Substation control (MBSC) SA System, IEC61850 Protocols

RTU- Based SA System, Legacy Protocols

Substation Functions

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Basic Substation Automation System

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Typical Conventional SubstationSubstation Automation

/Mimic

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ACC

HMIWorkstation

Substation HMI

RCC

Software

DNP 3.0 Protocol

PORTS

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Substation Automation RTU-Based SA

Software

IED’s

DI,DO, AI

IEC 60870-5-103 Modbus

DNP 3.0 Protocol

PORTS

INPUT-OUTPUT (DATA POINTS): DI, DO, AI

RCC

ACC

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Software

IED’s

DI,

Opto Coupler,Fast Acting Relay

Position/ Status of Switchgears

Double Point Status

NO NC

0000 0001

Digital Input (DI)


RTU LOGIC CB

NC NO STATUS RT Display

0000 0000 IN-TRANSIT

0000 0001 OPEN

0001 0000 CLOSE

0001 0001 IN-TRANSIT

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RCC

Software

DI

DNP 3.0


Close /Trip for Switchgears

DO Card

DO

SBO Command

RTU Host

Slave Master

sel

resp

opr

t

Digital Output (DO)


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RCC

Software

DI

DNP 3.0


iT P

AI

Temperature Pressure

4 to 20 mA,0 to 1 mA,(12 to 16 –BitBCD)

Analog Inputs

DO Card

i

DO

SBO Command

Close /Trip for Switchgears

AI Card

Analog Input (AI)


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SA RTU-Based Legacy ProtocolsSubstation Automation

IED’s : 103, Modbus AI, Analog Inputs

Transducers : Temperature, Pressure, etc

DI DO

DNP 3

SCADA Software


RTU

RCC ACC

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Components of the RTU-Based SASSubstation Automation

• Hardware: Server /WorkstationRemote Terminal Unit

Protocol : DNP 3.0, Modbus, IEC60870-5-103Digital Input Card (DI)Digital Output Card (DO)Analog Input Card(AI), Transducers, Converter, interfacing relay Opto

Coupler, etc.

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Components of the RTU-Based SASSubstation Automation

• Software: OS WindowsDatabase Ms SQLSCADA Software (Small Scale 10,000 points)

Data Acquisition and Control Graphical Trending Alarm Management Report Management User Interface Sequence of Events (SOE)

Points List ,and Single Line Diagram, etc.

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but, you have many copper wires


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...You may also have too many Legacy Protocols


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ProtocolSubstation Automation

A Protocol is an Agreement Between Two Devices on How to Communicate

• A set of:Message formatsServicesProceduresAddressing and naming conventions

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ProtocolSubstation Automation

A Protocol Defines Messages and Rules to Get the Job Done

• How to establish or end communication?• Who manages the communications?• How to direct/route messages?• How is data represented or protected?• How to control performance?• The types of data supported?• Supported “Commands”• How to detect “errors”• How to recover from errors?

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Trends in Technology for SASubstation Automation

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Trends in Technology for SAIEC 61850 - Substation Automation

X

25


IEC 61850 Architecture

IED1 IED2 IED3

SubstationHost

SCADA

CT VT

Station Bus

Process Bus

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Server Server/ClientClient

Client/Server

MBSC

Fast Ethernet Communication

IP Address IP Address IP Address

IP Address

26


IEC 61850 Architecture

IED1 IED2 IED3

CT VT

Station Bus

Process Bus

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Server Server/ClientClient

Client

Master

Slave

SCADA

SubstationHost

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The standard IEC 61850 „Communication Networks and Systems in Substations“ will provide interoperability between the electronic devices (IEDs) for protection, monitoring, metering, control and automation in substations. Interoperability and free allocation of functions opens up a vast range of possible solutions, but the consideration of customer requirements and commercially available equipment will scale down this range to a handful of them.


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Standard IEC 61850


The functions performed by Substation Automation (SA)system are in, general, switch control, data monitoring,protection etc. In IEC-61850, these functions are broken into low-level functions called sub-functions. Each sub-function is performed by the IED installed in the substation. Each IED can perform one or many sub functions.

A set of sub-functions is integrated together to realize a substation automation function. These communicate with each other through Local Area Network in the substation.

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Standard IEC 61850 -Communication Networks and Systems for Power Utility Automation

• Common Model for electrical system• What to standardize• Need communication – not only connection• Benefits


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What to Standardize

• 3 - phase currents and voltages• Report,• Event, • Logs, • Substation Configuration Language (SCL)• Generic Object Oriented Substation Event

(GOOSE), • etc


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Common Model for Electrical SystemStatusSettings,Measurements

A Phase Current PhV Phase to ground voltage PhV.PhsA PhV.PhsB ... PPV Phase to phase voltage W Phase active power Var Phase reactive power VA Phase apparent power TotalW Total active power TotalVar Total reactive power TotalVA Total apparent power Hz Frequency


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On the occurrence of any change of state!

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IEC 61850 – Protocols for Substation Automation

35

IEC 61850 – Protocols for Substation Automation

BCC7 Layers of the OSI Model (Open System Interconnection )

1

5

4

2

3

6

7

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GOOSE

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BMU

BMU: BAY MEASUREMENT UNITBPU: BAY PROTECTION UNITBCU: BAY CONTROL UNIT

LARGE DISPLAY

ENGINEERING WORKSTATION

GATEWAY

REMOTE ACCESS

BCU

BPU

BMU

BPU

BCU

BMU

BCU IEC 61850 WRAPPER

PH

GATEWAY / SERVER

TYPICAL SUBSTATION AUTOMATION SYSTEM -MBSC

GPS

STAT

ION

LEV

ELBA

Y LE

VEL

PRO

CESS

LEV

EL

HIGH / MEDIUM VOLTAGE

EQUIPMENT

CT, VT, DI, DO CT, VT, DI, DO

FUTURE EXPANSION

VOLTAGE EQUIPMENT

CT, VT, DI, DO, AI

AUXILIARY I/O’s

CT, VT, DI, DO, AI

LEGACY / IED’s

Redundant LAN IEC 61850

OPERATOR WORKSTATION

1


2

MAINTENANCE WORKSTATION

NETWORK PRINTER

Router

TELECOM

REMOTE MAINTENANCE

Router

Firewall

Firewall

TCP IP

Serial

REGIONAL / AREA / BACKUP

CONTROL CENTER REM

OTE

LEV

ELIEC 61850 - Substation Automation

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BMU

BMU: BAY MEASUREMENT UNITBPU: BAY PROTECTION UNITBCU: BAY CONTROL UNIT

LARGE DISPLAY

ENGINEERING WORKSTATION

GATEWAY

REMOTE ACCESS

BCU

BPU

BMU

BPU

BCU

BMU

BCU IEC 61850 WRAPPER

PH

GATEWAY / SERVER

SUBSTATION AUTOMATION SYSTEM

GPS

STAT

ION

LEV

ELBA

Y LE

VEL

PRO

CESS

LEV

EL

HIGH / MEDIUM VOLTAGE

EQUIPMENT

CT, VT, DI, DO CT, VT, DI, DO

FUTURE EXPANSION

VOLTAGE EQUIPMENT

CT, VT, DI, DO, AI

AUXILIARY I/O’s

CT, VT, DI, DO, AI

LEGACY / IED’s

Redundant LAN IEC 61850


1


2

MAINTENANCE WORKSTATION

NETWORK PRINTER

Router

TELECOM

REMOTE MAINTENANCE

Router

Firewall

Firewall

TCP IP

Serial

REGIONAL / AREA / BACKUP

CONTROL CENTER REM

OTE

LEV

ELIEC 61850 - Substation Automation

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End of MBSC Overview


Human Machine Interface (HMI )

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BAY CONTROL UNIT (BCU)The REC670 is a Bay control IED.

1. It is designed for the control, monitoring and protection of circuit breakers, disconnectors, earthing switches, transformer tap changer and other controllable field devices in different switchgear configurations.

2. It can be integrated to a substation automation system and communicates with the master station primarily using IEC 61850 protocol.

3. Different functions which used to be handled by different devices for the control and monitoring of a substation bay is integrated into one intelligent device called a Bay Control Unit or BCU.


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FUNCTIONAL ARCHITECTURE

The main substation automation (SA) function consists of several sub-functions which are appropriately interfaced. These sub-functions are known as Logical Nodes (LN). Logical nodes reside in the IED which is also called a Logical. The LN is the smallest part of a function, which communicates with other LNs and which may be implemented in a separate IED.

Device (LD). One logical device (IED1) holds one or multiple Logical Nodes (LN1 and LN2).


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IEC 61850 offers the concept of logical nodes (LN) for formally defining functions

FUNCTIONAL ARCHITECTURE


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Substation Configuration Language (SCL)

Type of SCL Files SSD – System Specification Description SCD – Substation Configuration Description ICD – IED Capability Description CID - Configured IED Description


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Substation Configuration Language (SCL)

The standard IEC 61850 requires that any conformant IED has to provide an SCL based description, i.e. a file with all its capabilities. This IED Configuration Description (ICD) may be supplied on data storage medium like a CD or may be readable from the device itself. Important is that this standardized file can be read and written by all conformant system engineering tools. This tool may also contain a database with all ICDs for IEDs, which are common for the system integrator.


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THE END

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THANK YOU

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IEC 61850 PROTOCOLS

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DESIGN PROCESSSingle Line

Diagram

SSD System Specification Description

Substation Automation Functionality

Select IEDs (Physical Devices

Map Functions

(SSD LNs to ICD LNs

Check LD’s (Logical Devices)

Communication Architecture

Detail Design (Signal flow, etc.

Detail Design (IED Functions)

SCD System Configuration Description


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BCCBy: BBCambalon

substation automation by: bccambalon 1bcc substation automation bcc mapping of data-points for scada...

Documents

bcc slide

protocols iec

bcc dnp

collection of system

technology iec

ai iec

bcc di

control centre