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
李军军 1易吉良 1李中启1
作者信息
- 1. 湖南工业大学轨道交通学院,湖南 株洲 412007
- 折叠
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.
Abstract
Due to the shared mode,the nine switch inverter can reduce the number of power electronic devices,re-duce the volume and weight of the driving device,and is suitable for dual machine drive applications.A dual perma-nent magnet synchronous motor drive system with a quasi Z source was studied to address the issue of low voltage uti-lization of a single motor in a nine switch inverter dual machine drive system.In order to realize the independent con-trol of each motor in the dual machine drive system,the principle of dual machine time-sharing control based on SVPWM modulation was studied.For purpose of different working conditions,the constant torque-flux weakening con-trol strategy of permanent magnet synchronous motor was studied.The indirect voltage method was used to control the Z source voltage to maintain the voltage stability.The simulation model of dual permanent magnet synchronous drive system with quasi Z source was built.The simulation results show that the control strategy of permanent magnet syn-chronous motor and quasi Z source is effective,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Key words
Nineswitch invente/Source/Time-sharing control/Permanent magnet synchronous machine引用本文复制引用
基金项目
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)
出版年
2024
NETL
NSTL
万方数据