四象限脉冲整流器模型预测电流控制算法研究  

Model Predictive Current Control Scheme of Four-quadrant PWM Rectifiers

作　　者：陈天宇 宋术全 卜丽东 程相勋 CHEN Tianyu;SONG Shuquan;BU Lidong;CHENG Xiangxun(CRRC Changchun Railway Vehicle Co., Ltd., Changchun, 130062 Jilin,China;Locomotive and Car Research Institute of China Academy Of Railway Sciences Corporation Limited, Beijing 100081,China;Beijing Zongheng Electro-Mechanical Technology Co., Ltd., Beijing 100094,China;Zhengzhou Metro Group Co., Ltd., Zhengzhou 450046 Henan, China)

机构地区：[1]中车长春轨道客车股份有限公司,长春130062 [2]中国铁道科学研究院集团有限公司机车车辆研究所,北京100081 [3]北京纵横机电科技有限公司,北京100094 [4]郑州地铁集团有限公司,郑州450046

出　　处：《铁道机车车辆》2019年第4期16-20,共5页Railway Locomotive & Car

摘　　要：采用模型预测电流控制(model predictive current control,MPCC)算法实现了对四象限脉冲整流器的控制。MPCC算法所采用的调制脉冲由评价函数优化生成,同时避免了内环电流比例调节器的使用,简化了控制系统。通过与瞬态直接电流控制(Transient Current Con-trol,TCC)算法相对比,表明MPCC算法具有更高的控制精度和响应速度。最后通过试验测试,给出了对比结果,表明MPCC方法具有较高的电流控制动态性能,同时能够降低电流中的谐波含量。Firstly,a mathematical expression of pulse width modulation(PWM)rectifier is mod-eled,and the operating principle of instantaneous direct current control is analyzed.Applying second-order generalized integral(SOGI)scheme to generate rotary voltage and current vectors,the mathe-matical expression of PWM rectifier in dq rotating frame is modeled.Then,a continue-control-set model predictive current control(MPCC)with constant switching frequency is proposed in this paper.Compared with the instantaneous direct current control scheme,the MPCC scheme applies the cost function to predict an optimal modulation voltage vector instead of the proportion(P)controller in instantaneous direct current control,which can gain fast inner-loop dynamic response and high con-trol precision.Finally,compared to the conventional instantaneous direct current control and conven-tional finite-control-set(FCS)MPCC,a comprehensive experimental comparison has been conducted in this paper,and experimental results have verified the effectiveness of the proposed MPCC scheme.

关 键 词：电力电子与电力传动 脉冲整流器 直接电流控制 模型预测控制 评价函数 

分 类 号：U264.6[机械工程—车辆工程]