单周期控制的Swiss整流器  

One Cycle control of Swiss Rectifier

作　　者：陈志海 陈为[1] Chen Zhi-hai;Chen Wei(Institute of Power Conversion and Electromagnetic Technology,College of Electrical Engineering,Fuzhou University,Fuzhou 350100)

机构地区：[1]福州大学电气工程学院功率变换与电磁技术研究所,福州350100

出　　处：《磁性元件与电源》2023年第9期156-161,共6页Components and Power

摘　　要：在传统的平均电流控制下,不仅系统的电流增益和带宽受限,严重影响系统的动态响应速度,而且系统建模的准确性影响闭环系统的稳定性。在单周期控制中,利用拓扑自身的状态变量构造非线性方程,实现开关周期内参考电流的控制,达到单位功率因数校正的目标。基于单周期控制的Swiss整流器进行研究,推导出单周期控制的Swiss整流器的控制方程,提出了在直流侧增加滤波电容Swiss整流器方案,替代传统的交流侧滤波电容。相比较于传统的交流侧滤波电容整流器,该方案能够有效降低系统损耗和差模电流的大小。仿真结果论证了理论分析的准确性。Under the traditional average current control,not only the current gain and bandwidth of the system are limited,which seriously affects the dynamic response speed of the system,but also the accuracy of system modeling affects the stability of the closed-loop system.In one-cycle control,a nonlinear equation is constructed using the state variables of the topology itself to achieve the control of the reference current during the switching cycle and to achieve the goal of unity power factor correction.sBased on the research of the Swiss rectifier with onecycle control,the control equations of the Swiss rectifier withone-cycle control are deduced,and the Swiss rectifier scheme of adding a filter capacitor on the DC side is proposed to replace the traditional AC-side filter capacitor.Compared with the traditional AC side filter capacitor rectifier,this scheme can effectively reduce the system loss and the differential mode current.The simulation results demonstrate the accuracy of the theoretical analysis.

关 键 词：Swiss整流器 单周期控制 功率因数校正 直流侧滤波电容 

分 类 号：TM4[电气工程—电器]