future trend of protection system based on iec61850 in pea · future trend of protection system...

Future trend of protection system based on IEC61850 in PEA

Mr. Narong Tantichayakorn

Deputy Director

Substation Construction and Maintenance Department

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Outline

• Electric Service of PEA

• Future trend of protection system

• Challenges Faced by Utilities

• Expected lifetime of components in substations

• Topology For IEC61850 •

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SAIFI : 7.81 INT/CUST/Yr (5.2) SAIDI : 281.19 MIN/CUST/Yr (161) LOSSES : 5.91% (5)

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NATIONAL ECONOMIC AND SOCIAL DEVELOPMANT PLAN

2012 2017 2022 5

Future trend of protection system

Table 1 – Important issues in the evolution of the power system

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Table 2 – Important issues in the evolution of market regulation and utility needs

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Table 3 – Key issues in the evolution of switchyard technology

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Table 4 – Key issues in the evolution of substation automation technology

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Table 4 – Key issues in the evolution of substation automation technology

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Figure 1 - Predictable steps for Substation Automation

MU = Merging Unit

MU

PT1 Optical CT

MU

PT2 CT2

MU

Optical

PT Optical

CT

Relay Relay Relay

MU Publishes V/I/Status Datasets

Relay(s) Subscribe to Datasets

I/O I/O I/O

Station Bus - 10/100/1000 MB Ethernet

Process Bus

.1/1/10GB

Ethernet

Clk1 Clk2

Remote Access

Network

MU = Merging Unit

MU

PT1 Optical CT

MU

PT2 CT2

MU

Optical

PT Optical

CT

IED IED IED

MU Publishes V/I/Status Datasets

Relay(s) Subscribe to Datasets

I/O I/O I/O

- 10/100/1000 MB Ethernet

.1/1/10GB

Ethernet

Clk1 Clk2

Remote Access

Network

• IEC 61850 is not just another bus system…

• Goes far beyond almost all other communication

standards

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Figure 2 – Sound vision for Substation Automation

• Speed: 100 Mbps instead

of few 10 kbps

• More data for a better

operation & maintenance

• Peer-to-peer: No extra

hardware

• Design of innovative

automation schemes

• Conditional report instead

of polling

• Optimal performances

• IP (Internet Protocol)

routing: Ubiquitous data

access

• Capability to extend the

system outside of the substation

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Future SPACS

• IEC 61850 supports different types of

communications based transmission

line protection schemes

• Significant benefits compared to

conventional hard wired schemes :

– Continuous monitoring of the interface

– Faster operating times

– Improved reliability and availability

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SAS of the future

Application Examples for IEC61850

in Protection

- Adaptive Load-Shedding

- Delta Directional Detection

- Transient Energy Directional

Detection

- Directional Comparison Scheme

- Distribution Bus Protection

- Sympathetic Trip Peotection

- Breaker Failure Protection

- Distributed Analog Functions

- Differential Protection and Inter-

Tripping

- Accelerated Scheme with Direct

GOOSE

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Challenges Faced by Utilities

• Different implementations of the standard

• Different versions

• Need for User friendly third party tools

• Lack of understanding of the technology

• Lack of confidence in the technology

• Limited implementations even of GOOSE

based applications

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Challenges Faced by Utilities

Requires good understanding of :

• The functional hierarchy of the IEC 61850 system

• The local and distributed functions

• Existing testing tools

• The purpose of the test :

– Conformance

– Type

– Acceptance

– Commissioning

– Maintenance

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Expected lifetime of components in substations

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Expected lifetime of components in substations

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Cost saving by system approach

Integrated Substation มาตรฐาน IEC61850 ในสถานีไฟฟ้าจะช่วยท าใหล้ดการลงทุนทางตรงได ้1004.3 ลา้นบาท (2627.9 – 1623.6 ) 20

Why IEC61850 important?

• Driving force by Global standard requirement • Product (protection) development by IEC 61850 • Independent from single vendor installed base • Cost saving • Driving force by Smart Grid • Unmaned substation, remote control required • More information needed • Development of maintenance strategy (CM,TBM -> CBM)

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Topology For IEC61850

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Topology For IEC61850

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Key success factors High-quality secondary equipment

Refurbishment know how and experience

Reliable and efficient project management

Expert IEC 61850 knowledge

Fully interoperable systems, products and tools

Full system integration capabilities

Competent, readily available support

All objectives are achieved through

close cooperation with competent supplier

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