摘要
永磁同步电机的空间矢量控制通过采集和控制定子电流,根据磁场定向对d-q坐标系下的电流分别进行独立调节,实现对电机的闭环控制。但PMSM是一个多变量耦合、非线性的复杂系统[1],在实际工作过程中系统受到外界扰动或自身参数发生改变时,传统的PI控制不能满足系统对跟踪性和鲁棒性的要求,由此本文在建立PMSM数学模型,分析矢量控制原理的基础上,建立同步电机空间矢量控制系统的仿真模型,并引入滑模控制与传统PI控制相对比,比较二者的特点,为PMSM矢量控制系统的设计与调试提供了理论基础。
The space vector control of PMSM realizes the closed-loop control of the motor by collecting and controlling the stator current and independently adjusting the current in the d-q coordinate system according to the magnetic field orientation.However,PMSM is a multivariable coupling and nonlinear complex system[1].When the system is subject to external disturbance or its own parameters change in the actual working process,the traditional PI control cannot meet the requirements of the system for tracking and robustness.Therefore,this paper establishes a simulation model of the space vector control system of synchronous motor based on the establishment of PMSM mathematical model and the analysis of vector control principle,The sliding mode control and traditional PI control are introduced to compare their characteristics,which provides a theoretical basis for the design and debugging of PMSM vector control system.
作者
刘鑫
Liu Xin(School of Artificial Intelligence,Beijing Business University,Beijing,China)
出处
《科学技术创新》
2023年第7期196-199,共4页
Scientific and Technological Innovation
