Optimal control strategy for a wind power hybrid energy storage system considering output power amendment
Optimal control strategy for a wind power hybrid energy storage system considering output power amendment
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DOI：
10.1049/joe.2018.8562
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发表时间：
2019-03
影响因子：
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通讯作者：
Guannan Wu;Jianyuan Xu;Jun Xu;Yi-Bin Song;Gaole Yu;Yuxiao Wang;Xiangguo Kong
中科院分区：
文献类型：
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作者：
Guannan Wu;Jianyuan Xu;Jun Xu;Yi-Bin Song;Gaole Yu;Yuxiao Wang;Xiangguo Kong
针对平衡风电功率波动的要求，提出了一种考虑输出功率修正的风电混合储能系统最优控制策略。首先，将波动风电分解为低频、次高频和高频分量。将低频部分作为风电并网的期望值。采用次高频和高频分量作为蓄电池和超级电容储能系统输出功率的目标值。其次，提出了一项双重权力修正案。在首次功率修正中，修正系数由以储能系统的功率目标值和荷电状态(SOC)为输入的模糊控制器计算。另一方面，在第二修正案中使用了电池和超级电容器的补充。通过仿真分析表明，混合储能系统的结构和控制系统设计是可行的。该系统可广泛应用于风电场，承担均衡风电功率波动的任务。
Aiming at meeting the requirement of balancing the fluctuating wind power, this study proposed an optimal control strategy for wind power hybrid energy storage system considering output power amendment. Firstly, fluctuant wind power is decomposed into low‐frequency, sub‐high frequency and high‐frequency components. Low‐frequency part is used as the expected value of wind power integration. Sub‐high frequency and high‐frequency components are used as the target value of output power of storage batteries and ultra‐capacitor energy storage system. Secondly, a double power amendment is proposed. In the first‐time power amendment, the amendment coefficient is calculated by fuzzy controller whose inputs are the target value of power and state of charge (SOC) of the energy storage system. On the other hand, complement of batteries and super‐capacitors are utilised in the second amendment. Through simulation analysis, it can be indicated that the configuration of the hybrid energy storage system and the control system design are feasible. This system can be widely used in wind farm, undertaking the task of balancing the fluctuating wind power.