power system presentation-ashu

7/27/2019 Power System Presentation-Ashu

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Todays Trends in Substation Automation

Integration

Distributed Architecture

Presenter:- Mr. Vidhyanand [email protected]
mailto:[email protected]:[email protected]


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2 HONEYWELL - CONFIDENTIAL File Number

Substation Automation Systems

A SAS System usually consists of thefollowing subsystems:-

1. A Human Mach ine Interfaceor HMI is the

apparatus which presents process data toa human operator, and through this, thehuman operator, monitors and controls theprocess

2. A superv isory (computer) system orSCADA operat ing sy stem, gathering(acquiring) data on the process and sendingcommands (control) to the process


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SAS (Contd..)

Station Level

- Includes Substation Host, Substation HMI & Gateway forcommunication with Remote Control Centers- (For e.g, SCADA Servers, RTUs)- DNP3.0 / IEC-60870-101/104 were preferred

Bay Level- Includes all Protection & Control Equipments- (For e.g, Bay Control Units, Numerical Relays, I/O Cards)- DNP3.0, IEC-60870-5-103, Modbus were preferred

Process Level

- Includes Intelligent Process Interfaces to Switchgears- (For e.g, Breaker Trip Coils, Closing Contactors, AVR etc.)

SAS


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SAS (Substation Automation System)

Mainly Used for Controlling, Protecting & Monitoring S/S

SAS


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Typical Control & Relay panel

Panels which houses all the controls for Electrical Equipment

Houses Protection Relays,Indicating Meters,Switches,Alarm/Trip

annunciators

Panels generally mounted in Control Room building distant from the

switchyard/Electrical Equipments

Field signals are wired up to the Control & Relay panel


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Control & Relay panel New Look

Complexity


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Integration!!!

Integrated Substation Control System

Whats Happening: Integration

Protection

Transfer trip

Overcurrent

Differential

Distance

Ground fault

Transformer

SCADA

Data Acquisition

Control

SOE

Communication

IED Interface

Protection & Control

Timers

Counters

Interposing

Contacts multiplying

Lock Out

Breaker-Fail

Mimic Panels

Transducers

Metering

Reclosing


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Role Of Remote Terminal Unit Cabinet

Components In Substation Automation

Remote Terminal Unit

Basically used to send data from the process

Level to Station Level

Process Level

- Includes Intelligent Process Interfaces to Switchgears

Station Level

- Includes Substation Host, Substation HMI & Gateway

for communication with Remote Control Centers


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Role Of RTU Cabinet In Substation

Automation for RRVPNL Substation

The D20 GE RTU communicate with D20 I/0

Peripheral modules The RTU can communicate through various

communication modes

1. Ethernet2. Serial

3. Modbus

In RRVPNL Serial Communication was used


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D20 Peripheral Cards

D20 Status Input Card

64 Input Status Signals

Take Binary Inputs

Used For Statussignals

from Isolators, Circuit

Breakers, Earth Switch

Etc.


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D20 Control Status Card

32 Output Signals

Control commands

like Trip or Close

Used For controlling

Isolators, CircuitBreakers, Bus coupler,

Etc


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D20 Analog Status Card

32 Input siganls

Takes signals from

Transducer as per the

Requirement of the customer

Take programmable input

signal

eg. For RRVPNL Substation

+4,+8,+12,+16,+20


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Substation View in EPKS


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SCADA

SCADA stands for Superviinclude:-

1. Sophisticated human-machine interface.

2. Open, deterministic, high-speed control network

communications system for predictable and repeatable control

linking servers, controllers and remote I/Os

3. A single builder tool, Control Builder, allows integrated

application configuration

4. Redundant SCADA servers ensure seamless changeover incase

of any failover in the Primary EPKS Server


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Alarm and Group Management

These Include:-

Controller-based alarming

Multiple alarm priorities: user can define different

alarm priority

Alarm colors associated with their priority:-

Urgent Priority Red

High Priority Yellow Low Priority Cyan


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Alarm Summary Display


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Event Summary Display


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SOE(Sequence Of Events) Summary Display


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Advantages of SCADA

5.2 Advantages Of Substation With Automation Over Substation WithoutAutomation

1. Decrease in manual work

The main difference between that has arrived with automation is decrease in the

manual work .All the equipments were initially operated manually by going to theswitchyards of Substations but now with automation it can be operated by just a

click through SCADA sitting in the Control Room.

2. Controlling Remote Substations from Main Control Rooms

Earlier it was difficult to operates different equipments of Substation situated inremote locations, but now due to Automation the equipments of Substation located

even 500kms away can be operated sitting in Main Control Room through SCADA

Automation.


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3. Monitoring 24*7

All the faults and Alarms can be monitored 24*7 through SCADA Automation which

was difficult without Automation.

4. Safety of Human Life

With automation the safety of people working in the substation has increased

because the injuries that used to occur due to faults in the Bus Bar.

5. Automatic Generation of Reports and Trends through Software

SCADA Software can automatically generate trends and Alarms on hourly anddaily basis which has reduced a lot of work of officials which earlier used to note

down all the values themselves.


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QUESTIONS ?

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