一种快速响应的新型Vienna整流器控制方法  

A New Fast ResponseControl Method for Vienna Rectifier

作　　者：姜卫东[1] 唐林 刘海勋 席荻捷 JIANG Wei-dong;TANG Lin;LIU Hai-xun;XI Di-jie(Hefei University of Technology,Hefei 230009,China)

机构地区：[1]合肥工业大学电气与自动化工程学院,安徽合肥230009

出　　处：《电力电子技术》2023年第4期27-31,共5页Power Electronics

摘　　要：首先介绍Vienna整流器在三相静止坐标系和d,q坐标系下的数学模型,分析了Vienna整流器在d,q坐标系下的能量交换关系。针对传统电压外环存在的问题,提出了一种将电容储能作为反馈变量,并将负载功率进行前馈的外环控制方式。为了降低系统成本,提出了一种无电流传感器的负载功率估计算法,并介绍一种改进的遗忘迭代滤波对估算的负载功率进行滤波。此外,针对电容充电功率的物理特性对外环的参数设计进行了说明。最后,搭建了Vienna整流器的实验平台,实验结果验证了所提方法的优越性和可行性。Firstly,the mathematical model of Vienna rectifier in three-phase static coordinate system and d,q coordinate system is introduced,and the energy exchange relationship of Vienna rectifier,in d,q coordinate system is analyzed.Aiming at the problems existed in the traditional voltage outer loop,a outer loop control method with capacitor energy storage as feedback variable is proposed,and the load power is feedforward.In order to reduce the system cost,a load power estimation algorithm without current sensor is proposed,and an improved forgetting iterative filter is introduced to filter the estimated load power.In addition,the parameter design of the outer loop is explained according to the physical characteristics of the capacitor charging power.Finally,the experimental platform of Vienna rectifier is built,and the experimental results verify the superiority and feasibility of the proposed method.

关 键 词：VIENNA整流器 负载功率估计 外环控制 

分 类 号：TM461[电气工程—电器]