双馈变速恒频风力发电机并网控制仿真研究  

Simulation Research on Doubly-fed Variable Speed Constant Frequency Wind Generator Paralleling in the Grid

作　　者：范立新[1] 向张飏[2] 

机构地区：[1]江苏方天电力技术有限公司,江苏南京211102 [2]东南大学电气工程学院,江苏南京210096

出　　处：《江苏电机工程》2012年第6期39-42,共4页Jiangsu Electrical Engineering

摘　　要：文章分析了双馈变速恒频发电机的数学模型,并对其并网运行控制策略进行研究。双馈电机使用双PWM变换器为转子侧提供励磁。网侧变换器主要功能是实现单位功率因数控制和稳定直流侧电压,转子侧变换器主要功能是实现风能最大追踪和功率的解耦控制。此外在运行期间风速过大时采用桨距角控制减小原动机出力。最后在Matlab/simulink软件中搭建了风力发电系统仿真模型,通过仿真结果验证了控制策略的可行性。The mathematical model of doubly-fed variable speed constant frequency motor is analyzed, and the control strategies of parallel operation are researched in this paper. Dual PWM converter is used for rotor side provide excitation by doubly fed motor. Main function of grid side converter is to achieve the control of unity power factor and stabilize of DC voltage, and the main function of rotor side converter is to achieve the maximum power point tracking and decoupling control of power. In addition, the pitch angle is controlled to reduce the prime mover output when the speed of wind is too large during operation. Finally, wind power system simulation model is built in Matlab/Simulink, and the feasibility of the control strategy is shown by the simulation results.

关 键 词：双馈电机 解耦控制 最大风能追踪 桨距角控制 

分 类 号：TM315[电气工程—电机]