| 引用本文: | 章竹耀,郭晓丽,张新松,吴大明.储能电池平抑风功率波动策略[J].电力系统保护与控制,2017,45(3):62-68.[点击复制] |
| ZHANG Zhuyao,GUO Xiaoli,ZHANG Xinsong,WU Daming.Strategy of smoothing wind power fluctuation based on storage battery[J].Power System Protection and Control,2017,45(3):62-68[点击复制] |
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| 摘要: |
| 为了平抑风功率波动，并优化风电场出力特性，基于双电池组拓扑结构的电池储能系统(Battery Energy Storage System, BESS)提出了在短期内平抑风功率波动的新型控制策略。该策略基于即时控制策略，把未来风功率波动对当前储能电池充放电行为的影响纳入考虑范围。双BESS则根据策略需求进行充电或放电，任一电池组电量达到满充或满放，则两组电池的工作状态同时切换。在新型控制策略中通过风电预测并结合滚动优化法实现双BESS动态控制。实践表明该策略在风电出力特性上不仅取得了较好的平抑效果，而且能降低因储能容量不足引起的瞬时大功率波动。在电池特性上，由于采用双BESS，很大程度上降低了电池充放电次数，延长了电池寿命。 |
| 关键词: 风力发电 风功率波动 电池储能系统 新型控制策略 风电预测 |
| DOI：10.7667/PSPC160209 |
| 投稿时间：2016-02-22修订日期：2016-03-20 |
| 基金项目:国家自然科学基金项目(51407097);江苏省“六大人才高峰”计划第12批资助项目(2015-ZNDW-009);江苏省高校自然科学基金(16KJB470014) |
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| Strategy of smoothing wind power fluctuation based on storage battery |
| ZHANG Zhuyao,GUO Xiaoli,ZHANG Xinsong,WU Daming |
| (School of Electrical Engineering, Nantong University, Nantong 226019, China) |
| Abstract: |
| On the basis of double battery energy storage systems (BESSs), a new control strategy is proposed to smooth fluctuating components of wind power and improve output characteristics of wind farm. It is based on the current control strategy and the effect of wind power fluctuations in future which can affect the charge and discharge behavior of BESS what can be taken into account. Double BESSs charge or discharge according to policy requirements, once any BESS arrives at its state of full charging or discharging, two BESSs switch their states immediately. The new control strategy reaches to dynamic control with wind forecast and rolling optimization. Practice shows that the new control strategy not only achieves good stabilizing effect in wind power output characteristics but also reduces instant power fluctuations because of insufficient storage capacity. It can reduce battery charge and discharge times and extend battery life because of using double BESSs. This work is supported by National Natural Science Foundation of China (No. 51407097), The 12th Fund Project of Jiangsu “Six Talents Summits” Plan (No. 2015-ZNDW-009), and Natural Science Foundation of Jiangsu Universities (No. 16KJB470014). |
| Key words: wind power generation wind power fluctuation battery energy storage system new control strategy wind power forecast |
