摘要
为了有效降低非周期信号对三相三线APF控制性能的影响,提出了一种改进重复控制与传统PI控制相串联的双环控制方法。该方法加入了控制前馈和误差比例系数以提高系统对非周期信号的抗扰性能。结合APF在旋转d,q坐标系中的简化数学模型,建立了电压、电流解耦环节,对解耦后的d,q轴电流i d,i q分别进行控制,并采用SVPWM控制策略,以TM320F28335型DSP为处理器,在APF50A样机上进行了实验,实验结果表明了改进的控制算法具有很好的鲁棒性。
In order to reduce the impact of controlling about nonperiodic signal effectively, double tings control algorithm of improved which connects repetitive control and traditional PI control was developed. The addition of control feedforward and error proportion coefficients in the algorithm improved the system disturbance restraint performance aiming at non periodic signal. A simplified mathematical model for APF （active power filter） at synchronization rotational coordinate system was analysed. The decouple link of voltage and current was built, and the current id of daxis and iq of qaxis after being decoupled were controlled respectively. The control strategy of SVPWM was used, and DSP of TM320F28335 was used as processor. Tests were carried out in the 50 A prototype of SAPF, and the result demonstrates that the control algorithm improved has very good robustness.
出处
《电气传动》
北大核心
2014年第2期55-58,68,共5页
Electric Drive
