According to engineering design method a double closed-loop DC motor control system was designed, a modulator structure was selected and computed, and its parameter was corrected.
采用工程设计方法对双闭环直流调速系统进行辅助设计，选择调节器结构，进行参数计算和近似校验。
Adopting ac servo motor as the driving device, can the dc servo motor and a high precision, high performance as the half closed loop or closed loop control system.
采用交流伺服电机作为驱动器件，可以和直流伺服电机一样构成高精度，高性能的半闭环或闭环控制系统。
Adopting ac servo motor as a drive device, can and dc servo motor as a high precision, high performance and a half closed loop or closed loop control system.
采用交流伺服电机作为驱动器件，可以和直流伺服电机一样构成高精度，高性能的半闭环或闭环控制系统。
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