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《Power System Protection and Control》 2010-19
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Real-time simulation model of the electronic current transducer based on Rogowski coil

ZHOU Wei1,LI Xue-tai1,ZHANG Pei-chao1,GAO Jie2 (1. Department of Electrical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China; 2. Shanghai SHR Automation Co.,Ltd,Shanghai 201108,China)  
Based on the real-time digital simulation system (RTDS),the paper studies and establishes the numerical simulation model as well as the communication model for the electronic current transducer based on Rogowski coil. It first develops the equivalent circuit of Rogowski coil and the mathematical models of the digital integrator, t he re-sampling filter and the phase compensation module. Then, t he sampled values are encoded and published according to IEC61850-9-2, b y using the GTNET. After that ,the communication model according to IEC61850 is built using the concept of virtual analogue terminal. Finally, a system configuration tool is developed to configure and visualize the dataflow between the RTDS and the protection and control IEDs. The closed-loop test results show that the real-time simulation model of the electronic current transducer proposed in the paper is helpful in improving the test efficiency of the digital substation systems.
【CateGory Index】: TM452
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