含准Z源的双永磁电机驱动系统的研究及仿真  

Research and Simulation of Dual Permanent Magnet Synchronous Motor Drive System with Quasi Z-Source

作　　者：李军军[1] 易吉良[1] 李中启[1] LI Jun-jun;YI Ji-liang;LI Zhong-qi(College of Railway Transportation,Hunan University of Technology,Zhuzhou Hunan 412007,China)

机构地区：[1]湖南工业大学轨道交通学院,湖南株洲412007

出　　处：《计算机仿真》2024年第7期195-199,206,共6页Computer Simulation

基　　金：湖南省自然科学基金省市联合基金(2019JJ60066);湖南省教育厅科研项目(19C0598)。

摘　　要：由于九开关逆变器通过共享模式,可减少电力电子器件数量,减小驱动装置的体积与重量,适用于双机驱动的应用场合。针对九开关逆变器双机驱动系统中单台电机电压利用率低的问题,研究了一种含准Z源的双永磁同步电机驱动系统。为了实现双机驱动系统中每台电机的独立可控,研究了基于SVPWM调制的双机分时控制原理。为满足不同的工况,研究了永磁同步电机的恒转矩-弱磁控制策略,利用间接电压法对Z源电压进行控制,以维持Z源电压的稳定。搭建了含准Z源的双永磁同步驱动系统仿真模型,仿真结果表明,永磁同步电机和准Z源的控制策略行之有效,分时控制可实现双机驱动系统的独立可控,可满足工程应用的需求。Due to the shared mode,the nine swi tch inverter can reduce the number of power electronic devices,reduce the volume and weight of the driving device,and is suitable for dual machine drive applications.A dual permanent magnet synchronous motor drive system with a quasi Z source was studied to address the issue of low voltage utilization of a single motor in a nine switch in verter dual machine drive system.In order to realize the independent control of each motor in the dual machine drive system,the principle of dual machine time-sha ring control based on SVPWM modulation was studied.For purpose of different working conditions,the constant torque-flux weakening control strategy of permanent magnet synchronous motor was studied.The indirect voltage met hod was used to control the Z source voltage to maintain the voltage stab ility.The simulation model of dual permanent magnet synchronous drive system with quasi Z source was built.The sim ulation results show that the control strate gy of permanent magnet synchronous motor and quasi Z source is effectiv e,the time-sharing control can realize the independent control of dual machine drive system,and it can meet the requirements of engineering application.

关 键 词：九开关逆变器 源 分时控制 永磁同步电机 

分 类 号：N945.12[自然科学总论—系统科学]