刘颖明;王维;王晓东;彭朝阳;

• 1:沈阳工业大学电气工程学院
• 2:中国矿业大学(北京)机电与信息工程学院

摘要(Abstract)：

在风电并网处加入储能系统,可以有效地平滑风力发电系统的并网功率,满足电网规定的波动范围。而基于储能荷电能量反馈的储能控制策略,可以在保证并网功率要求的同时,尽量避免储能电池过度充/放。在此基础上,提出一种基于相空间重构–随机森林风功率预测模型和储能荷电能量反馈的模糊控制策略。基于预测未来风功率变化评估功率波动水平,并结合储能当前荷电状态,利用模糊控制器调节储能系统出力。在保证风电平滑前提下,减少储能电池进入平抑能力死区时间,维持储能系统平抑波动水平。最后,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,即可以在相同储能配置比例下达到更低的功率波动指标要求和更少的储能死区时间。

关键词(KeyWords)： 风电功率波动;风功率预测;模糊控制;相空间重构;随机森林;能量状态

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(51677121)~~

作者(Author): 刘颖明;王维;王晓东;彭朝阳;

Email:

DOI: 10.13335/j.1000-3673.pst.2018.2003

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