电网技术Issue(2)：469-477,9.DOI:10.13335/j.1000-3673.pst.2014.02.030
用于平滑可再生能源出力波动的电池储能系统优化控制策略
A Real-Time Optimal Control Strategy for Battery Energy Storage System to Smooth Active Output Fluctuation of Renewable Energy Sources
单茂华 1李陈龙 2梁廷婷 3毛维杰4
作者信息
- 1. 中国电力科学研究院，江苏省南京市 210003
- 2. 国电南瑞科技股份有限公司，江苏省南京市 210061
- 3. 冀北电力有限公司，北京市西城区 100053
- 4. 盐城市电力公司，江苏省盐城市 224500
- 折叠
摘要
Abstract
In allusion to the random power fluctuation in China’s power grids due to grid-connection of renewable energy sources such as large-scale wind farms (WF) and photovoltaic (PV) generations, large-scale battery energy storage systems (BESS) are coupled with renewable energy sources. A new BESS control strategy to smooth active output fluctuation of WF-PV is proposed. The intelligent segmentation control of smoothing time constant (STC) based on fluctuation rates of WF-PV is put forward and combined with feedback control of state of charge (SOC) of the BESS to remedy the defects in first-order lag filter for the existing BESS control strategy, meanwhile the smooth power reserve of energy storage batteries is also taken into account, thus the ability of smoothing random active output fluctuation of WF-PV could be brought into playing furthest. The correctness of the proposed control strategy is validated by simulation experiments based on the measured data of an actual wind farm. Relying on the national Wind/PV/Battery hybrid generation demonstration project a platform of distributed control system for BESS is constructed and its overall architecture is presented. On this basis, the on-site tests of smoothing output of BESS are performed. Tests results show that the proposed control strategy can effectively suppress the output fluctuation of WF-PV and enhance the friendliness of grid-connection of renewable energy resources.关键词
电池储能系统/功率波动/低通滤波/分布式控制/能量备用Key words
battery energy storage system (BESS)/random power fluctuations/first-order lag filter/distributed control/energy reserve分类
信息技术与安全科学引用本文复制引用
单茂华,李陈龙,梁廷婷,毛维杰..用于平滑可再生能源出力波动的电池储能系统优化控制策略[J].电网技术,2014,(2):469-477,9.
