吴启帆;宋新立;张静冉;禹海峰;黄家栋;戴汉扬;罗华伟;

• 1:华北电力大学电力工程系
• 2:中国电力科学研究院有限公司
• 3:国网湖南省电力有限公司经济技术研究院
• 4:湖南经研电力设计有限公司

摘要(Abstract)：

为充分发挥储能参与一次调频的优势,在虚拟惯性控制及下垂控制的基础上,通过分析储能参与电网一次调频的动态特性,提出一种跟随荷电状态(state of charge,SOC)变化和最大频率偏差动态调整出力的自适应综合控制策略。该策略在负荷扰动初期采用正虚拟惯性控制模拟发电机惯性响应;在频率恢复期提出可变系数的负虚拟惯性控制,综合考虑频率恶化程度(最大频差)和SOC动态调整负虚拟惯性控制出力以加快频率恢复;在整个调频期内采用基于双曲正切函数特性的变系数下垂控制,下垂系数的大小与SOC有关,可在保证调频需求的同时兼顾电池容量的保持效果。最终形成以正/负虚拟惯性控制改善储能调频动态特性为主、下垂控制改善储能稳态特性为主,3种方法互相配合的综合控制策略,并提出电池储能参与一次调频的评价指标。最后在Matlab\Simulink中搭建了区域调频模型,分别对阶跃负荷扰动和连续负荷扰动进行仿真,验证了策略的有效性。

关键词(KeyWords)： 电池储能;一次调频;自适应控制;虚拟惯性控制;下垂控制;荷电状态

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 吴启帆;宋新立;张静冉;禹海峰;黄家栋;戴汉扬;罗华伟;

Email:

DOI: 10.13335/j.1000-3673.pst.2019.1214

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