该文采用了DSP作为控制芯片，实现了系统的双闭环控制。
This paper uses DSP as control chip, and has achieved double control for system.
整个系统采用双闭环控制，具有较好的谐波补偿性能。
The whole system adopts double closed loop control and has good harmonic compensation performance.
系统采用电流和速度的双闭环控制。
The speed and electric current double closed-circle is adopted in the system.
本文设计了电流闭环和电压闭环的双闭环控制系统。
This paper designed a double close loop control system based on current and voltage.
系统采用双闭环负反馈控制，控制类型选择PI控制。
The system used double negative feedback, and the type of control is PI control.
实验表明：双闭环的永磁数字交流伺服系统拥有很高的速度和位置控制性能。
Experiments show that the two-loop Servo System has good performances in speed and position control.
实验表明：双闭环的永磁数字交流伺服系统拥有很高的速度和位置控制性能。
Experiments show that the two-loop Servo System has good performances in speed and position control.
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