【摘要】 针对永磁同步电动机(PMSM)的启动速度振荡问题,在PMSM数学模型基础上,提出了一种速度零振荡控制策略。首先建立了基于PMSM转子磁场定向的矢量控制算法模型;然后利用现代控制理论的极点配置方法将系统等效成一个四阶闭环控制系统;并在此基础之上,对闭环系统施与分时整形输入控制策略。仿真结果证明,提出的控制策略能够改善系统的动态性能,达到速度零振荡的目的,并且减少了功率损耗,延长了PMSM的工作寿命。更多还原

【Abstract】 Aiming at the start speed vibration problem of permanent magnet synchronous motors(PMSM),a control strategy for no speed vibration was presented based on PMSM mathematical model.The vector control algorithm model was established based on the rotor field-oriented of PMSM,then the system was equivalented into a fourth-order closed-loop control system through the pole assignment of modern control theory.The closed-loop system with time-reshaping control strategy was imposed.The simulation results show that the control strategy can improve the system dynamic performance,achieve no speed vibration purpose,reduce the power loss and prolong the working life of PMSM.更多还原