Outer inner voltage-currentdual closed loop control system to improve the system accuracy and stability of the output and improve the system dynamic response.
采用电压外环电流内环双闭环控制系统，提高了系统的输出的精度和稳定性，改善了系统动态响应特性。
2
In the control of voltage source PWM rectifier, direct current control and dual close loop control structure ind-q synchronous reference frame are widely adopted.
在电压型PWM整流器的控制中，广泛采用在同步旋转坐标系下的直接电流控制方法和双闭环控制结构。
3
The power dual base transistor (DUBAT) has been designed and fabricated by increasing the breakdown voltage and current capacity of the device.