电测与仪表2023，Vol.60Issue(12)：59-64,6.DOI:10.19753/j.issn1001-1390.2023.12.008
基于MMC-BESS的风电场功率及电压综合调节策略
Integrated regulation strategy of wind farm power and PCC voltage based on MMC-BESS
摘要
Abstract
Wind farm grid-connection has power and point of common coupling(PCC)voltage fluctuation problems.The conventional method is to adopt energy storage and reactive power compensation device to adjust separately,but it will lead to complex system structure.In this paper,a battery energy storage system based on modular multilevel converter(MMC-BESS)is studied,which can comprehensively regulate the power and voltage of wind farms.Aiming at the fluctu-ations of output power due to the random wind speed,it is input into a first-order low-pass filter,and the difference be-tween the filter output and the input is used as the MMC-BESS reference signal to smooth the wind farm grid-connected power.In order to suppress PCC voltage fluctuations due to load mutation,the difference between the d-axis component of PCC voltage and the rated value is made.And then,the reactive power curr-ent reference is generated by proportional inte-gral(PI)controller to adjust the PCC voltage,experiments are carried out in a simulated wind farm scene,and the exper-imental results verify the power compensation capability of MMC-BESS four-quadrant in the wind farm.关键词
模块化多电平变换器/电池储能系统/风电场/波动功率抑制/PCC电压调节Key words
modular multilevel converter/battery energy storage system/wind farm/fluctuating power suppression/PCC voltage regulation分类
信息技术与安全科学引用本文复制引用
程从智,徐晨,戴珂,黄永烁,潘非..基于MMC-BESS的风电场功率及电压综合调节策略[J].电测与仪表,2023,60(12):59-64,6.基金项目
国家自然科学基金资助项目(51807073) （51807073）
