摘要
在恒功率区,电机运行主要受电压极限椭圆的约束。基于永磁同步电机转子磁场定向数学模型,提出了在全速范围内实现最大转矩电流比的电流控制算法,并在MATLAB/Simulink环境下建模仿真。仿真结果表明,提出的永磁同步电机全速范围MTPA控制算法获得了电流、转矩的准确、快速响应,实现0～9 000 r/min的宽范围调速。采用SVPWM实现圆形磁场利于降低转矩波动。
Motors operation in constant power range is primarily constrained by the voltage ellipse. Based on the rotor field orientation control model of permanent magnet synchronous motors （ PMSM）, the current vector control algorithm of a- chieving maximum torque per ampere （MTPA） in full speed range was proposed. And a simulation model was built in Mat- lab/Simulink environment. The simulation results demonstrate high performance of the proposed MTPA control algorithm in full speed range,and it has the precise and fast response of current and torque with a wide-range （from 0 -9 000 r/min） speed regulation. The implementation of SVPWM realizes a circular magnetic field and helps reduce the torque ripple.
出处
《微特电机》
北大核心
2013年第1期31-34,共4页
Small & Special Electrical Machines
基金
国家重点基础研究发展计划(973计划
2011CB711202)
中央高校专项资金
