储能科学与技术

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基于性能不一致的储能电池调频的自适应控制策略

靳瑞久, 张向锋, 王致杰   

  1. 上海电机学院电气学院, 上海 201306
  • 收稿日期:2019-05-10 发布日期:2019-06-12
  • 作者简介:靳瑞久(1994-),在读研究生,主要研究方向新能源发电技术,E-mail:j_ruijiu1129@163.com
  • 基金资助:
    国家自然科学基金课题资助(51477099)。 电力传输与功率变换控制教育部重点实验室开放课题资助(2016AB14)

Battery Energy Storage with Inconsistent Performance SystemsÊ Self-adaptation Control Strategy in Frequency

JIN Ruijiu, ZHANG Xiangfeng, WANG Zhijie   

  1. Shanghai Dianji University, Shanghai 201306, China
  • Received:2019-05-10 Published:2019-06-12
  • Contact: 2019-06-12

摘要: 为改善性能不一的储能电池对电网的调频效果,解决电池在调频过程中过充过放的问题,提出一种基于双层模糊器的自适应控制策略。使性能不一致的储能电池出力在满足电网调频要求的情况下,也更好地维持电池荷电状态(SOC),避免过充过放进而延长循环寿命,提高储能电池经济性,通过将仿真算例结果和传统方法对比,验证了所提控制策略的优越性,尤其对于性能较差的储能电池SOC状态维持效果优于传统方法。

关键词: 储能电池, 调频控制策略, 性能不一致, 荷电状态, 双层模糊控制

Abstract: Improve the frequency modulation effect of energy storage battery with different performances and solve the problem of over-charge and over-discharge in frequency modulation, a double-layer fuzzy frequency modulation adaptive control strategy based on stored state of charge (SOC) feedback is proposed. Performance-attenuating battery can maintain the SOC state of the energy storage battery in the case of meeting the frequency modulation requirements of the power grid, avoid over-charging and over-discharging, thereby prolonging the cycle life and improving the economy of the energy storage battery. The comparison between the simulation results and the traditional methods verifies the superiority of the proposed control strategy, especially for the poor performance of the battery SOC state is better than the traditional method.

Key words: energy storage battery, frequency modulation control strategy, inconsistent performance, state of charge, double-layer fuzzy control