变速恒频风力发电用双PWM变换器的协调控制  

Coordinate Control of Dual PWM Converters for VSCF Wind Power Generation

作　　者：孟彦京[1] 李林涛[1] 张晓娟[1] 陈景文[1] 

机构地区：[1]陕西科技大学电气与信息工程学院,西安710021

出　　处：《电子器件》2013年第5期712-716,共5页Chinese Journal of Electron Devices

摘　　要：分析了双馈风力发电机的原理以及其数学模型,然后分析了变速恒频风力发电技术采用双PWM变换器常规控制策略,在此基础上提出了采用双PWM变换器的协调控制策略。最后利MATLAB/SIMULINK软件对整个风力发电系统进行仿真。结果表明此策略实现了风力发电机的变速恒频运行,另外在定子电流变化的同时,保持了恒定的功率因数,实现了对双馈感应电机的有功功率和无功功率的独立控制。Analyzed the operating principle and created the mathematical model of doubly-fed induction generator,then analyzed VSCF wind power generation technology,the coordinated control strategy of dual PWM converter was proposed by using conventional control strategy of dual PWM converter. Finally,The MATLAB / SIMULINK software was used to build the simulation models of the entire wind power generation system. The results showed that the strategy could operate in the variable speed constant frequency. At the same time,the power factor could keep a constant during the stator current change. This strategy realized the independent control of active and reactive power of the doubly-fed induction motor.

关 键 词：变速恒频 风力发电 绕线式双馈发电机 双PWM变频器 协调控制 

分 类 号：TM911[电气工程—电力电子与电力传动]