基于模糊混合储能控制的VSC-HVDC在风电中的应用  

Application of VSC-HVDC Based on Fuzzy Hybrid Energy Storage Control in Wind Power

作　　者：王俊 陈堂贤[1] 王雅琪 胡聪 陈聪[1] WANG Jun;CHEN Tang-xian;WANG Ya-qi;HU Cong;CHEN Cong(School of Electrical and New Energy,China Three Gorges University,Yichang 443002)

机构地区：[1]三峡大学电气与新能源学院

出　　处：《电力学报》2019年第5期505-512,共8页Journal of Electric Power

摘　　要：在接入风电的两端柔性直流输电系统中,采用模糊PI控制方法对混合储能单元的充放电过程进行精确管理,使能量型和功率型储能元件的功率合理分配,平抑风电功率波动对电网稳定性的影响。最后借助柔性直流输电系统送受端换流器控制策略,将风电功率传输到电网。在Matlab/Simulink平台对风电场经有源型柔性直流输电系统接入电网进行仿真分析,结果表明该方案能保持受端交流母线功率更加稳定。In the two-terminal flexible HVDC transmission system connected to wind power,the charging and discharging process of hybrid energy storage unit is accurately managed by using fuzzy PI control method,so that the power of energy-type and power-type energy storage elements can be reasonably distributed,and the influence of wind power fluctuation on the stability of power grid can be suppressed.Finally,the wind power is transmitted to the power grid by means of the control strategy of the feeder-receiver converter of the flexible HVDC transmission system.The simulation analysis of wind farm connected to power grid via active flexible HVDC transmission system is carried out on Matlab/Simulink platform.The results show that the scheme can keep the power of receiving AC bus more stable.

关 键 词：模糊PI控制 混合储能 VSC-HVDC 风电并网 

分 类 号：TM721[电气工程—电力系统及自动化] TM614