• The Transactions of The Korean Institute of Electrical Engineers
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• v.61 no.11
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• pp.1590-1594
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• 2012

Depend on delay latency rule for message transmission defined in IEC 61850 standard, the fastest message has to be transferred within 3us. This paper suggests how to structure the real time message transmit test environment of IEC 61850 and develope how to securing IEC 61850 communication performance based on IEC 61850 by measuring delay latency of message transfer on embeded linux system.

• Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
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• 2009.05a
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• pp.259-262
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• 2009

IEC 61850 based substation automation system mainly consists of human machine interface and a various of IEDs in charge of protective and control functions of the substation. Both of them should require the performance verification of IEC 61850 communication services because their communication relation is the same as client and server throughout the digital network. This paper shows a research result on the testing method of basic communication interface of the IEC 61850 based client, which was implemented by the analysis of real communication between HMI and IED of IEC 61850 based substation automation system and refereed to IED IEC 61850 conformance test procedures.

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.22 no.9
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• pp.75-81
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• 2008

The effect of the fault could be propagated to healthy region when the fault on the power system is not cleared in time. In order to enhance reliability of the protective relay, a dual and/or backup system is adopted for the power system protection. The IEC61850 has become an international standard of the substation automation system for interoperability between heterogeneous IEDs from different vendors. This paper introduces a reliability enhancement technique for the substation automation system using characteristics of the IEC61850.

• The Transactions of The Korean Institute of Electrical Engineers
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• v.60 no.7
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• pp.1324-1330
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• 2011

This paper presents the development of gateway for smart grid for the interoperable communication between IEC 61850 station leveled devices and one of legacy Modbus, DNP3, and IEC60870-5-101/104/103 communication protocol devices of bay level in substation or for the exchange of information between IEC 61850 substation and SCADA control center. The data-mapping model is designed for the exchange of information and the gateway configuration tool is developed for generating meta-data based on XML Schema. this paper is mostly concerned with the design and realization of gateway system for the interoperable data communication between a legacy protocol device and IEC61850 based devices or systems.

• Proceedings of the KIEE Conference
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• 2009.07a
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• pp.233_234
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• 2009

2005년 유틸리티 산업분야 국제표준 규약으로서 IEC61850이 발표된 이후, 변전소 자동화 시스템 설계 및 구현을 위한 새로운 패러다임으로 인식되고 있다. 현재, 유럽시장을 중심으로 IEC61850 규약과 호환되는 많은 제품들이 출시되고 있고 다양한 구현사례를 통해 그 적용가능성 및 타당성이 검증되고 있다. 그러나, 변전소 자동화의 기본 통신규약으로서 IEC61850이 도입될 경우, 이미 기존에 설치되어 운용중인 수많은 전력설비 감시/제어 시스템 및 상위 제어센터와의 통신 호환성 문제가 발생되며, 향후, IEC61850 기반의 디지털변전소 확대 적용에 장애 요인으로 대두되고 있다. 본 논문에서는 이러한 문제점을 해결하기 위해 IEC61850 기반의 변전소자동화 용 게이트웨이 시스템을 설계하고 구현하였다. 제안된 시스템은 기존에 운용되고 있는 전력설비 감시/제어 시스템과의 호환성 제공은 물론, 변전소 내의 IEC61850 IED들과 상위제어센터 내의 송변전 SCADA 시스템간 통신 및 상호운영성을 제공한다. 또한, 시스템의 가용성 및 신뢰성을 보장하기 위한 이중화 메커니즘을 지원한다.

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.23 no.8
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• pp.41-47
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• 2009

The power IT project "Development of Prototype for Advanced Substation Automation System based on the Digital Control Technology", is going on how to perform the verification of a IEC 61850 based Merging Unit for development of the full Substation Automation system from station bus to process bus. the testing method that this paper suggests, is including the conformance testing of IEC 61850 communication services and transmission functions of digital sampled values such as current and voltage, and referring to IEC 61850 conformance testing of IED. And finally, the paper shows a test system for the Merging Unit.

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.24 no.8
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• pp.101-108
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• 2010

In order to construct the IEC 61850 based substation automation system, the IED integration engineering tool is necessary to cope with the substation automation by full digital devices in the real power system. Compared the configuration tools provided IED vendors which are able to support the operation and communication analysis among IEDs, the XML based IED integration engineering tool can build, edit and save the ICD, SCL and CID files. Particularly, the IED integration engineering tool is possible to apply the IEC 61850 based IEDs to engineering the systems and also provides the reliability and efficiency of the system to the utilities and manufacturers.

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.24 no.6
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• pp.169-176
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• 2010

Substation Automation System is basically operating throughout communicative services among IEC 61850 based devices. So, minimum requirement in order to install the system in the substation is to verify server and client conformance of IEDs and HMIs according to the IEC 61850 standard. Even though UCA IUG issued IEC 61850 conformance test procedures for both the server and the client, Much of the test is limited to IEDs as server and there is no client-only testing tool except KEMA server test tool sets. this study aims to develop IEC 61850 client testing system for verifying the full communication conformance of the substation automation system and this paper describes the design and implementation of the testing system.

• Proceedings of the KIEE Conference
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• 2006.07a
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• pp.25-26
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• 2006

IEC 61850은 변전소자동화시스템에 대한 국제 표준이다. IEC 61850 파트 7에서는 상호운용성을 위하여 IED (Intelligent Electronic Device)에 구현해야 할 정보모델과 서비스 모델을 추상적로 정의하였다. IEC 61850 파트 8에서 정의된 SCSM (Specific communication service mapping)은 추상적인 객체와 서비스를 MMS (Manufacturing Message Specification, ISO 9506) 와 ISO/IEC 8802-3으로 매핑하는 것을 정의한다. 이 논문은 SCSM을 이용하여 어떻게 IEC 61850 기반의 IED를 구현해야 하는지 설명한다.

• Proceedings of the KIEE Conference
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• 2006.07a
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• pp.250-251
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• 2006

현대 전력산업은 IEC61850의 표준화작업이 한창 진행중이다. IEC61850-7-4는 전력설비 요소마다 Logical Node를 선언해 놓았다. 현재의 Logical Node는 보호, 제어, 인터페이스, 기록, 자동, 측정, 센서 & 모니터링, 변전기기 등의 그룹으로 나뉘어져 있다. 그러나 본 논문에서 대상으로 하는 GIS 예방진단 시스템에 관한 Logical Node와 공통 데이터 클레스(CDC: Common Data Class)가 명확히 선언되지 않았다. 1993년 IEC61850의 객체모델이 제안될 때부터 변전소의 다양한 설비를 완벽하게 객체화 할 수 있는가에 대한 의문이 있었으며 현재에서 이런 의문점을 개선하기 위하여 TC57위원회에서는 지속적인 모델 수정 및 정비 작업을 수행하였다. 실제로 현재에도 전력품질에 대한 logical node가 'Q'그룹으로 새롭게 제시되고 있고 풍력발전이나 분산전원에 대한 logical node가 추가되거나 기존의 IEC61850-7-4의 내용이 수정되고 있는 실정이다. 본 연구는 이와 같이 변전설비 자동화에 필요하지만 IEC TC57에서 표준화되지 않은 온라인 GIS 예방진단용 설비에 대한 표준모델을 제시하였고 모델에 대한 logical node나 CDC를 구성하였다.