• CSCD核心库收录期刊
  • 中文核心期刊
  • 中国科技核心期刊

Electric Power Construction ›› 2016, Vol. 37 ›› Issue (1): 64-69.doi: 10.3969/j.issn.1000-7229.2016.01.010

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Stability Control Analysis of UHV AC/DC Hybrid Power Grid

CHEN Kai1,DUAN Xiangying2,GUO Xiaojiang2   

  1. 1. AC Project Construction Branch, State Grid Corporation of China, Beijing 100052, China;2. China Electric Power Research Institute, Beijing 100192, China
  • Online:2016-01-01

Abstract:

Considering the power system development in China, this paper summarizes the problems and solutions of the security and stability control for UHV AC/DC hybrid power system. Firstly, according to the structure of AC/DC hybrid system, we present a normal method of preliminary evaluation for the system, and analyze the stability problems and control requirements in the AC/DC hybrid system. Then, in combination with the AC/DC hybrid system in China power grid planning, we discuss the methods which use DC power emergency control, power modulation, frequency modulation, etc. to improve the stability of AC/DC system, and present study cases to verify the validity of the proposed methods. Finally, we discuss the future research direction according to the deficiency in the study of AC/DC hybrid system.

Key words:  UHVDC, AC/DC hybrid system, DC modulation, AC/DC coordinated control

CLC Number: