考虑母线电压波动的光伏混合储能控制策略  

Photovoltaic Hybrid Energy Storage Control Strategy Considering Bus Voltage Fluctuation

作　　者：农宝翔 杨超[1] 杨旗 肖月 NONG Bao-xiang;YANG Chao;YANG Qi;XIAO Yue(School of Electrical Engineering,Guizhou University,Guiyang Guizhou 550025,China;Electric Power Research Institute,Guizhou Power Grid Co.Ltd.,Guiyang Guizhou 550002,China;Joint Laboratory of Ice Prevention&Disaster Reducing of China Southern Power Grid Co.Ltd.,Guiyang Guizhou 550002,China)

机构地区：[1]贵州大学电气工程学院,贵州贵阳550025 [2]贵州电网有限责任公司电力科学研究院,贵州贵阳550002 [3]南方电网防冰减灾联合实验室,贵州贵阳550002

出　　处：《计算机仿真》2024年第1期91-96,共6页Computer Simulation

基　　金：贵州省科学技术基金(黔科合基础ZK[2021]一般277)。

摘　　要：混合储能是保障光伏系统稳定运行的重要技术之一。为保证光储系统稳定运行,提出了一种考虑母线电压波动的控制策略。通过将母线电压波动大小分解为正向和反向两种反馈,对混合储能系统中的超级电容电流内环参考电流进行调节,进而将母线电压波动相关的量作为控制信号对超级电容功率进行调整,最后在Simulink中搭建了仿真平台。结果表明,相比传统控制策略,所提控制策略母线电压波动得到明显改善,同时蓄电池的输出功率也更加平滑,延长了蓄电池的使用寿命。Hybrid energy storage is one of the important technologies to ensure the stable operation of photovoltaic systems.In order to ensure the stable operation of the optical storage system,a control strategy considering the voltage fluctuation of the busbar is proposed.By decomposing the bus voltage fluctuation size into forward and reverse feedback,the supercapacitor current in the hybrid energy storage system inner ring reference current was adjusted,then the bus voltage fluctuation correlation amount was used as a control signal to adjust the supercapacitor power,and finally,a simulation platform was built in Simulink.The results show that the voltage fluctuation of the busbar of the control strategy proposed in this paper is significantly improved compared with the traditional control strategy,and the output power of the battery is smoother,which prolongs the service life of the battery.

关 键 词：光伏 母线电压波动 控制策略 混合储能 

分 类 号：TM743[电气工程—电力系统及自动化]