基于双馈异步电机并网条件下的无功补偿策略研究  

Study on Reactive Compensation Strategy of DFIG Under Condition of Synchronization

作　　者：樊永忠 李贵兵 吕永军 FAN Yongzhong;LI Guibing;LYU Yongjun(Datang Electric Power Co.,Ltd.,Henan Anyang 455004,Chin)

机构地区：[1]大唐电力有限责任公司,河南安阳455004

出　　处：《电力电容器与无功补偿》2018年第4期43-46,105,共5页Power Capacitor & Reactive Power Compensation

基　　金：国家自然科学基金(61033004)

摘　　要：风电场并网条件下,其并网点的电压会随着风力电机出力的波动而呈现波动的特性。为了实现异步电机群并网条件下并网点电压的稳定,文中在对双馈异步电机的有功、无功补偿策略研究的基础上,通过转子侧电流的调整从而实现定子侧功率的稳定变化。在Simulink仿真平台上,搭建并仿真出不同风速下有功、无功功率的输出。其结果显示,通过此无功补偿的策略能够保证直流母线电压的稳定输出,从而保证电能的稳定传输。In case of connection to the grid,the voltage of its connection point shows fluctuation feature with the fluctuation of the wind turbine＇s output. For achieving voltage stability of connection point under the connection condition of asynchronous motor group,in this paper,the stable variation of the power at the stator side is achieved by way of current adjustment of the rotor side on the basis of study of both active and reactive compensation strategy of double-fed asynchronous motor. The active and reactive power output under different wind velocity is set up and simulated on the Simulink simulation platform. It is shown by the result that the stable output of DC busbar voltage can be assured through reactive power compensation strategy,thus assuring stable transmission of power.

关 键 词：双馈感应发电机(DFIG) 无功补偿 电压稳定 

分 类 号：TM343[电气工程—电机]