基于双三电平变流器永磁直驱风力发电系统  

Permanent Magnet Synchronous Motor Wind Power System Based on Dual Three-Level Converters

作　　者：刘毅[1] 谭国俊[1] 李渊[1,2] 

机构地区：[1]中国矿业大学信电学院,江苏徐州221008 [2]江苏大学电气信息工程学院,江苏镇江221003

出　　处：《电机与控制应用》2011年第4期37-41,共5页Electric machines & control application

摘　　要：分析了永磁同步电机的数学模型,基于双三电平变流器,采用最佳叶尖速比的最大风能跟踪方法和转子磁链定向的矢量控制方法实现机侧三电平变流器的控制。对于网侧三电平变流器的控制,提出了基于虚拟磁链定向和瞬时功率理论的空间矢量调制-定频直接功率控制(SVM-DPC)。基于MATLAB/Simulink搭建了系统仿真模型,研究了系统在变速条件下的动态响应特性,仿真试验验证了系统模型和所述控制策略的可行性和正确性。The mathematical model of permanent magnet synchronous motor was analyzed.Based on the dual three-level converters,best tip speed ratio of the maximum wind tracking method and rotor flux oriented vector control strategy were adopted to control the PMSM-side three-level converter.For the grid-side three-level inverter control,fixed-frequency direct power control using space vector modulation（SVM-DPC） was proposed based on the virtual flux orientation and the instantaneous power theory.Simulation models of PMSM wind power system were designed to analyze dynamic response characteristics of PMSM wind power system under the variable wind speed.The simulation results showed that the PMSM wind power system model and its control strategy were feasible and correct.

关 键 词：永磁同步电机 双三电平变流器 虚拟磁链定向 空间矢量调制 

分 类 号：TM315[电气工程—电机]