基于间接矩阵变换器多机传动高性能调速系统的研究

介绍了基于间接矩阵变换器(IMC)的多机传动系统的拓扑结构和控制策略。提出了一种基于间接矩阵变换器的多电机矢量控制系统,该系统将间接矩阵变换器的优点与异步电机矢量控制的优点相结合,将异步电机的矢量控制直接施加于IMC的两个逆变级,而整流级采用空间矢量调制方法,不仅可以实现整流级双向开关的零电流换流,减少输出电流谐波,而且可以实现多台电机独立控制并得到较好地动静态性能。仿真结果验证了所提系统的有效性和可行性;在电机转速和转矩突变时,都能较快平稳跟踪且超调很小;为多机传动系统的进一步研究和软硬件设计提供了理论基础。

Study of High-Performance Speed Regulation for Multi-Drive System Based on Indirect Matrix Converter

A topology of multi-drive system and control strategy based on indirect matrix converter(IMC) for driving two motors were introduced in this paper.A multi-motor vector control system based on indirect matrix converter was proposed,which combined the characteristics of both induction motor vector control and indirect matrix converter.The induction motor vector control was used in the inverter stage,while space vector modulation method was used in the rectifer stage.The zero current commutation in the rectifier side can be realized,output current harmonics can be reduced,and also independent control of multiple motors can be achieved and get a better steady and dynamic performance.Simulation results show the effectiveness and feasibility of the proposed system.The motor speed and torque can track the varities quickly and smoothly.A theoretical basis is provided for the further study and software and hardware design of multi-drive system.