电网技术Issue(1)：3682-3688,7.DOI:10.13335/j.1000-3673.pst.2014.01.013
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
摘要
Abstract
In view of the fact that hybrid offshore renewable energy power generation system is composed of offshore wind power generation, wave power generation and tidal power generation and they are integrated as a whole, there is considerable random fluctuation in the output power of the hybrid generation system. To reduce the affection of power fluctuation on power grid the battery energy storage system is adopted to smooth the output power of the hybrid generation system. On this basis, considering the state of charge of batteries, a coordinated control strategy, which can keep output power of the hybrid generation system as smooth as possible and prevent the over-charging/over-discharging of batteries in the meantime, is proposed. When the state of charge of batteries is maintained in the normal level, the power fluctuation can be suppressed by the charging/discharging of batteries;when over-charging of batteries occurs, output power of generators can be reduced by the coordinated control of overspeed and pitch-varying of wind turbines and tidal generation units;when over-discharging of batteries occurs, the normal working state of batteries can be recovered by reducing the output power setting at grid-side. Results of calculation example show that the proposed coordinated control strategy is correct and effective.关键词
近海可再生能源综合发电/电池储能/荷电状态/协调控制Key words
hybrid offshore renewable energy power generation system/battery energy storage/state of charge/coordinated control分类
信息技术与安全科学引用本文复制引用
王荃荃,秦川,鞠平,吴峰..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[J].电网技术,2014,(1):3682-3688,7.基金项目
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)。@@@@Key Project Supported by National Natural Science Foundation of China (51137002)；Natural Science Foundation of Jiangsu Province (BK2011026) （51137002）
