A Modified Gain Model and the Corresponding Design Method for an LLC Resonant Converter

被引：99

作者：

Liu, Jianqiang ^{[1
,2
]}

Zhang, Jiepin ^{[3
]}

Zheng, Trillion Q. ^{[1
,3
]}

Yang, Jingxi ^{[1
]}

机构：

[1] Beijing Jiaotong Univ, Sch Elect Engn, Beijing 100044, Peoples R China

[2] Beijing Jiaotong Univ, Inst Power Elect & Elect Tract, Beijing 100044, Peoples R China

[3] Beijing Jiaotong Univ, Beijing 100044, Peoples R China

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 2017年 / 32卷 / 09期

关键词：

Design method; fundamental harmonic approximation (FHA) method; LLC resonant converter; modified gain model; power electronic traction transformer (PETT); FREQUENCY;

D O I：

10.1109/TPEL.2016.2623418

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：

In this paper, a modified gain model and the corresponding design method for an LLC resonant converter are proposed. To derive the gain model, two important factors-resonant factor and load factor are considered and discussed in detail by combining time domain and frequency domain. Compared with fundamental harmonic approximation (FHA) method, the accuracy of the gain model is highly improved. Referring to the modified gain model, the corresponding design method is also obtained that can inherit conciseness and practicability of the FHA method. Thus, the design method can be used to replace the FHA method in practical design procedures. Finally, the simulation results are given and a prototype of the LLC resonant converter used for power electronic traction transformer is built to verify the accuracy and validity of the proposed gain model and the corresponding design method

引用

页码：6716 / 6727

页数：12

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