摘要
对永磁同步电机的功率模拟提出了一种新方法,即基于双PWM变换器的能量回馈型电子负载结构,其输入PWM变换器按照永磁同步电机的特性,采用滞环电流控制,使该变换器对外接口特性电压、电流、转速等信息与实际电机一致,达到模拟真实永磁同步电机的目的;输出PWM变换器采用幅相控制以达到能量回馈电网的目的。在MATLAB/Simulink平台下,搭建了仿真模型,并与Simulink库中自带的永磁电机模型进行对比仿真,验证该模型的正确性。
A novel method was proposed for the power simulation of permanent magnet synchronous motors,that is,an energy feedback type electronic load structure based on dual PWM converter,which input PWM converters follow the characteristics of permanent magnet synchronous motors.The hysteresis current control is adopted to make the characteristic voltage,current and speed of the converter′s external interface consistent with the actual motor,so as to simulate the real permanent magnet synchronous motor.The output PWM converter used amplitude and phase control to achieve the purpose of energy feedback to the grid.Under the MATLAB/Simulink platform,a simulation model was built and compared with the permanent m.
作者
金阳
毕大强
覃甫军
郑婷婷
段焱垚
JIN Yang;BI Daqiang;QIN Fujun;ZHENG Tingting;DUAN Yanyao(Nuclear Power Institute of China,Chengdu 610005,China;State Key Lab of Power System,Dept of Electrical Engineering,Tsinghua University,Beijng 100084,China)
出处
《电工技术》
2020年第15期137-140,共4页
Electric Engineering
关键词
永磁同步电机
电子负载
滞环电流控制
幅相控制
permanent magnet synchronous motor
electronic load
hysteresis current control
amplitude phase control
