【摘要】 本文提出了一种交流永磁同步电机伺服系统的全数字式电流控制方案。该方案采用瞬时电流分量的比较控制方式,通过产生式规则查询规则库,输出逆变器的开关状态矢量;同时采用矢量作用时间的优化策略,得到了类似SPWM控制方式的电流控制性能.并具有响应速度快和谐波小的特点,因而可改善系统的速度和位置控制性能。数字仿真和实验结果证明该方案是行之有效的。更多还原

【Abstract】 This paper describes a full-digital current control strategy {or AC PMSM servo drives. Using instantaneous current comparing control, switching vector of inverter is output according to the production rule base. Applying the’optimal way of vector time, the current control performance similar to SPWM which has quick response and minimal harmonics is acquired. Thereby speed and position control are improved. Digital simulation and experiment are carried out to certify the proposed strategy effective.更多还原