Small-signal model analysis and control design of a double-ended forward converter in discontinuous-capacitor-voltage mode

被引：3
作者：
Yang, Jianbo [1 ]
Faris, Al-Naemi [1 ]
Zhang, Weiping [2 ]
机构：
[1] Sheffield Hallam Univ, Mat & Engn Res Inst, Sheffield S1 1WB, S Yorkshire, England
[2] North China Univ Technol, Ctr Power Elect Syst, Beijing, Peoples R China
来源：
IET POWER ELECTRONICS | 2015年 / 8卷 / 05期
关键词：
POWER-FACTOR; FAMILY;
D O I：
10.1049/iet-pel.2014.0349
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A double-ended forward converter with an input inductor-capacitor filter has inherent power factor correction (PFC) properties and continuous input current when operating in discontinuous-capacitor-voltage mode (DCVM). In this study, the minimum separable switching configuration modelling is applied to the proposed converter operating in DCVM to obtain a small-signal model of the converter. The impact of the circuit parameters on the small-signal characteristic are discussed in details. The difference between the small-signal behaviour of the converter when operating as a DC/DC converter and a PFC converter is investigated. The modelling methodology is intended for the design of controllers in closed-loop operation. A 100 W prototype is implemented to demonstrate the feature of the small-signal behaviour.
引用
收藏
页码：802 / 813
页数：12
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