考虑电池储能系统荷电状态的近海可再生能源综合发电协调控制A Coordinated Control Strategy for Hybrid Offshore Renewable Energy Power Generation Considering State of Charge of Battery Energy Storage System
王荃荃;秦川;鞠平;吴峰;
摘要(Abstract):
近海可再生能源综合发电系统融合近海风电、波浪能发电以及潮流能发电于体,其输出功率具有较大的随机波动特性。为减小功率波动对电网的不利影响,采用电池储能对综合发电系统的输出功率进行平滑。在此基础上,考虑电池的荷电状态,提出了在防止电池过充过放的同时尽可能保持系统输出功率平稳的协调控制策略。当荷电状态维持在正常水平时,通过电池的充放电控制平抑功率波动;当电池发生过充电时,通过风电和潮流能机组的超速与变桨距协调控制,降低发电机侧输出功率;当电池发生过放电时,通过降低网侧输出功率设定值使电池恢复到正常工作状态。算例结果验证了上述方法的正确性和有效性。
关键词(KeyWords): 近海可再生能源综合发电;电池储能;荷电状态;协调控制
基金项目(Foundation): 国家自然科学基金重点项目(51137002);; 江苏省自然科学基金重点研究专项(BK2011026)~~
作者(Author): 王荃荃;秦川;鞠平;吴峰;
Email:
DOI: 10.13335/j.1000-3673.pst.2014.01.013
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