用Simulink中的SimPowersystem完成一个转速、电流双闭环直流调速系统的设计与仿真。采用三相桥式整流，平波电抗器Lp的大小可根据根据仿真调整。给出电机在空载启动，以及在2.5S后加额定负载时转速、电流、电压的变化曲线，并结合调速理论分析这些曲线。-A rotational speed in Simulink SimPowersystem to complete the design and simulation of the current double closed loop

通过自己的实验，对控制电机算法。双闭环都很好-Through experiment, the algorithm to control the motor. Double closed loop is very good

通过自己的实验，对控制电机算法。双闭环都很好-Through experiment, the algorithm to control the motor. Double closed loop is very good

电压外环，电流内环，双闭环逆变电路，三项双闭环逆变电路-Voltage outer, inner current loop, double closed loop inverter circuit, three pairs of closed loop inverter circuit