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《Automation of Electric Power Systems》 2004-15
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ANALYSIS AND TEST ON DELAYS IN THE WIDE AREA MEASURING SYSTEM

Hu Zhixiang, Xie Xiaorong, Xiao Jinyu, Tong Luyuan (Tsinghua University, Beijing 100084, China)  
This paper is concerned with the basic architecture of GPS/PMU-based WAMS and an analysis and test on the delays of synchro-phasors, including its generation mechanism, influencing factors and mathematical model. A delay evaluation model is proposed, for which the authors present an approach to testing the communication delays of WAMS operating on TCP/IP-based WAN. The approach is applied to the recently commissioned Jiangsu Provincial WAMS, which is based on China's State Power Data Network or SPDNet. The characteristics of communication delays of an actual WAMS have been obtained and analyzed. The evaluation model proposed, the testing approach and the field test results can provide basic and important information for optimal placement of PMUs and arrangement of the communication infrastructure of WAMS, laying a solid foundation for wide-area system monitoring and control.
【CateGory Index】: TM76
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