考虑海底电缆的海上风电场动态感性无功补偿  

Dynamic inductive reactive power compensation of offshore wind farms considering submarine cable

作　　者：熊信恒 陈柏超[1] 袁佳歆[1] 

机构地区：[1]武汉大学电气工程学院,湖北武汉430072

出　　处：《武汉大学学报（工学版）》2016年第4期591-596,602,共7页Engineering Journal of Wuhan University

摘　　要：为补偿海上风电场的海缆产生的大量容性无功,提出了一种海上风电场动态感性无功补偿方案:在海上升压平台安装小容量投切电容器,保证了双馈风力发电机组额定运行时的无功需求,并使风电场的无功需求总是呈感性;同时在陆上高压侧安装磁阀式可控电抗器(MCR)进行集中补偿,避免了海上平台安装动态无功补偿装置.通过对在陆上安装的MCR和双馈风力发电机组的无功协调控制,保证了并网点的无功和电压,提高了风电场的可靠性.最后以滨海风电场仿真计算表明上述无功补偿方案的可行性和有效性.In order to compensate the large capacitive reactive power produced by the submarine cable of offshore wind farm,a dynamic inductive reactive power compensation scheme of offshore wind farm is proposed in this paper.In this scheme,small capacity switched capacitors are installed on the offshore platform,which satisfy the reactive power demand of the doubly fed indaction generator（DFIG）when it is working at rated state;thus,the reactive power demand of the wind farm is always inductive reactive power.Meanwhile,the magnetic valve controllable reactor（MCR）is installed at the high voltage side on land to compensate reactive power instead of installing the offshore dynamic reactive power compensation device.Through the coordinated,control of MCR on land and DFIG,which ensure the reactive power and voltage of the connected point being standard and improve the reliability of the wind farm.Finally,the simulation results of Binhai wind farm show the feasibility and efficiency of the proposed scheme.

关 键 词：海上风电场 双馈感应发电机 磁阀式可控电抗器 无功补偿 

分 类 号：TM315[电气工程—电机]