基于返步法的永磁同步电机转速控制  

Designing of Speed Controller Based on PMSM Using Backstepping Method

作　　者：王朝庆[1] 张琴 WANG Chaoqing;ZHANG Qin(The 43 rd Research Institute of China Electronics Group Cooperation,Hefei 230088,China;Inspection Institute of Bengbu Product Quality Supervision,Hefei 233000,China)

机构地区：[1]中国电子科技集团公司第四十三研究所,合肥230088 [2]合肥产品质量监督检验研究院,合肥233000

出　　处：《微电机》2023年第4期87-91,共5页Micromotors

摘　　要：为完成伺服电机平稳而准确的转速控制,在深入分析永磁同步电机d、q坐标系数学模型基础上,基于模型和反步法理论设计一种电流环、转速环矢量控制律,该控制律首先根据目标的转速要求设置一个虚拟的q轴输入来控制速度环,其次通过q轴电压输入控制电流环跟踪虚拟q轴输入,同时设定d轴电压输入完成i d=0控制,该算法在电流环控制设计时通过引入抗扰动补偿项及积分项,彻底消除模型未知扰动带来的影响,因此较以往的经典PI控制方法提高了系统的整体性能,通过仿真验证了该控制律的有效性。In order to complete the smooth and accurate speed control of PMSM,deep analysis of the mathematical model of d-q coordinate,a vector control algorithm of the current loop and the speed loop was designed based on the backstepping theory.The control algorithm first sets a virtual q-axis input to control the speed loop according to the target speed requirements,and then uses the q-axis voltage input to control the current loop to track the virtual q-axis input.Meanwhile,the d-axis voltage input is set to complete the i d=0 control.The algorithm completely eliminates the influence of unknown disturbance of the model by introducing the anti-interference compensation term and the integral term in the current loop.Therefore,comparing with the previous classical PI control method,it improves the performance of the system.The effectiveness of the control algorithm was verified by simulation.The effectiveness of the control algorithm was verified by simulation results.

关 键 词：永磁同步电机 前馈控制 转速控制 

分 类 号：TM351[电气工程—电机] TM341[自动化与计算机技术—检测技术与自动化装置] TP273[自动化与计算机技术—控制科学与工程]