Huadian Technology ›› 2017, Vol. 39 ›› Issue (9): 16-19.

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Coalfired unit primary frequency modulation performance increasing study

  

  1. China Huadian Corporation Wangting Power Plant, Suzhou 215155, China
  • Published:2017-09-25

Abstract:

In ultrahigh voltage power gird receiverside, primary frequency modulation became more and more important. Large scale coalfire power is responsible for primary modulation, but many units cannot achieve expected performance, and problems barely can be detected by performance tests. By analyzing tested units, prohibition and frequency modulation counter action logic was indicated. Corrected sliding pressure curve, which increases frequency modulating ability, and corrected feedforward coefficient was provided. This could be referred by different kind of unit.

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