摘要
Abstract
Permanent magnet synchronous motors are commonly used in aerospace,rail transportation,artificial intelligence,unmanned aerial vehicles and other applications requiring high speed regulation performance due to their high efficiency,low trans-mission consumption,low noise,low harmonics,simple structure,reliable operation,and high precision of the electromagnetic torque generated.Its stator winding is the same as the stator winding of asynchronous motor,and the rotor adopts permanent magnets with constant magnetic flux,which makes the voltage equation,magnetic chain equation and torque equation simpler than those of asynchronous motor for control.In this paper,firstly,the following assumptions are made before establishing the dynamic mathemat-ical model of three-phase permanent magnet synchronous motor,core saturation,eddy current and hysteresis loss are neglected,ro-tor permanent magnet steel conductivity is neglected,and the waveforms of the induced electromotive force and magnetic dynamic potential in the stator side-phase windings are sinusoidal waves.Secondly,the vector control system of three-phase permanent mag-net synchronous motor with two-pole surface-mounted voltage space vector PWM(Space Vector Pulse Width Modulation)is estab-lished,and the subsequent modeling and simulation based on Matlab/Simulink is carried out to build a simulation platform.The trends and waveforms of motor speed,electromagnetic torque,and currents of each phase are obtained at different given speeds and loads.关键词
二极面装式/三相永磁同步电动机/电压空间矢量(SVPWM)控制/Matlab仿真/电压电流波形Key words
two-pole face-mounted/three-phase permanent magnet synchronous motor/voltage space vector(SVPWM)control/Matlab simulation/voltage-current waveforms分类
信息技术与安全科学
