三相电压型PWM整流器模型准线性化  

Study of Model Quasi-Linearization of Three-Phase Voltage-Type PWM Rectifiers

作　　者：杨培志[1] 张晓华[1] 陈宏钧[1] 

机构地区：[1]哈尔滨工业大学电气工程系,哈尔滨150001

出　　处：《电工技术学报》2007年第8期28-35,共8页Transactions of China Electrotechnical Society

摘　　要：提出了一个普遍适用于电力电子变换器控制系统设计的模型准线性化方法,利用该方法可以得到电力电子变换器的精确线性模型。该模型不但适合于各类控制器设计,而且可以利用矩阵运算代替通常的调制算法得到各桥臂的开关状态,有效降低了实际系统的实现难度。基于此线性化方法,分别在两种坐标系下建立了三相电压型PWM整流器的精确线性模型,并利用伪逆矩阵设计了PWM整流器的全状态反馈控制器。仿真结果表明,所提出的模型准线性化方法是有效的。In this paper, a model quasi-linearization method is presented which can be used to establish a precise linear model for control system design of the power electronic converters. The precise linear model is not only suitable for various controllers design, but also convenient in obtaining the switching states of the converters by matrix multiplication versus traditional modulation method. By using the model quasi-linearization method and considering two coordinates, two precise linear models of the three-phase voltage-type PWM rectifier are presented, and a full-state feedback controller is designed by using the pseudo inverse matrix. The simulation results show that the proposed model quasi-linearization method is valid for application.

关 键 词：准线性化 PWM整流器 伪逆矩阵 全状态反馈 

分 类 号：TM461.5[电气工程—电器]