• FAN Chen ¹

  FAN Chen

  China Electric Power Research Institute, Nanjing 210003, China
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• YAO Jianguo ¹

  YAO Jianguo

  China Electric Power Research Institute, Nanjing 210003, China
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• CHANG Naichao ²

  CHANG Naichao

  State Grid Corporation of China, Beijing 100031, China
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• WU Yanping ¹

  WU Yanping

  China Electric Power Research Institute, Nanjing 210003, China
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• YANG Qing ¹

  YANG Qing

  China Electric Power Research Institute, Nanjing 210003, China
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• ZHANG Haidong ¹

  ZHANG Haidong

  China Electric Power Research Institute, Nanjing 210003, China
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1.China Electric Power Research Institute, Nanjing 210003, China;2.State Grid Corporation of China, Beijing 100031, China

The access of high proportion of renewable energy sources and high proportion of power electronic equipment generates a lot of inter-harmonic signals which caused a series of wide-frequency oscillation and affect the safety operation of power grids. The exiting measurement devices focus on power frequency measurement and cannot monitor the wide-frequency oscillation. The paper takes the opportunity of release of “Technology specification of wide-frequency measurement device of power system”, introduces the proposal, function and terminology of wide-frequency measurement technology. The function and performance of wide-frequency measurement devices are discussed from the aspects of wide-frequency sampling, measurement function, monitoring of wide-frequency oscillation, data transmission and data recording. Then, the application schemes, scenarios and prospect of the devices are discussed further. The existing problems of this specification and the future research direction are presented. It can provide guide and reference to the application of wide-frequency measurement devices.

wide-frequency measurement;technology specification;wide-frequency oscillation;power-electronic-dominated power grid;phasor measurement unit;wide area measurement system

This work is supported by State Grid Corporation of China (No. 5108-202218030A-1-1-ZN).