• 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 ›› 2015, Vol. 36 ›› Issue (5): 105-110.doi: 10.3969/j.issn.1000-7229.2015.05.017

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Frequency Modulation Technology for Conventional Units  Assisted by Large Scale Energy Storage System

LI Jianlin1,YANG Shuili1,GAO kai2   

  1. 1. China Electric Power Research Institute Beijing 100192, China;2. State Grid Liaoning Electric Power Supply Co., Ltd., Shenyang 110004, China
  • Online:2015-05-01
  • Supported by:

    Project Supported by the National High Technology Research and Development of China (863 Program) (2014AA052004)

Abstract:

 Due to the characteristics of new energy power generation: intermittent and variable, the reserve capacity deficiency issue of frequency modulation (FM) for power grid has become increasingly prominent, along with the gradual increase of the installed capacity. Traditional FM units rarely achieve real-time equivalency of actual output with the theoretical values because of their inherent characteristics, and are difficult to deal with the problem of frequency stability caused by the rapid development of power system and the generation and paralleling in gird of new energy. Energy storage technology, as a new technology, has advantages of fast response speed, strong short-term power capacity, easy-changing adjust direction and so on, which can be combined with conventional FM technology and used as an effective assistant mean of power grid FM. This paper studied the capacity allocation of energy storage based on the actual situations of different grids; discussed the control strategy of traditional units FM assisted by energy storage system, which could provide references for the engineering application of energy storage system in grid FM in future.

Key words: renewable energy, frequency modulation, energy storage system

CLC Number: