中国电机工程学报2024，Vol.44Issue(16)：6494-6506,13.DOI:10.13334/j.0258-8013.pcsee.230588
面向风功率波动平抑的电池储能双层协调控制策略
Coordinated Two-layer Control Strategy of Battery Energy Storage for Wind Power Fluctuate Mitigation
摘要
Abstract
The coordinated two-layer control strategy of integrated battery energy storage for wind power fluctuation mitigation is proposed.In the outer control,the wind power smoothing strategy based on near-zero phase adaptive filtering is proposed.This strategy not only ensures that the grid-connected power aligns with the power fluctuations at 1-minute and 10-minute timescales but also minimizes the phase lag during the control process.When the wind power is relatively stable,the energy storage system can adaptive exit operation,effectively reducing the rated power requirement and operation burden of the energy storage system.In the inner control,the dual lithium iron bisphosphate batteries with different charging/discharging characteristics are used to track the power,and the equivalent SOC index is defined to measure the overall SOC of the energy storage system.Then,the equivalent SOC is linked to the outer control,and the Logistic dynamic interval strategy for SOC optimization is proposed.It ensures that the grid-connected power meet the requirements in the optimization process,solves the extreme operation state of high/low SOC when the charge and discharge energy is unbalanced,and enables the ability of battery energy storage to continuously mitigate power fluctuations.Meanwhile,the two groups of batteries can operate at the optimal depth of discharge,so as to make full use of the cycle life.关键词
功率波动平抑/近零相位自适应滤波/电池寿命/充放电能量不平衡/Logistic动态区间Key words
power fluctuate mitigation/near-zero phase adaptive filter/battery life/unbalanced charge and discharge energy/Logistic dynamic interval分类
信息技术与安全科学引用本文复制引用
毛志宇,李培强,肖家杰,毛振宇,涂春鸣..面向风功率波动平抑的电池储能双层协调控制策略[J].中国电机工程学报,2024,44(16):6494-6506,13.基金项目
国家重点研发计划项目(2021YFB2601504) （2021YFB2601504）
国家自然科学基金项目(52377097).National Key R&D Program of China(2021YFB2601504) （52377097）
Project Supported by National Natural Science Foundation of China(52377097). （52377097）
