High-performance front-end converter for avionics applications

被引：35

作者：

Athalye, P ^{[1
]}

Maksimovic, D ^{[1
]}

Erickson, R ^{[1
]}

机构：

[1] Univ Colorado, Dept Elect & Comp Engn, Colorado Power Elect Ctr, Boulder, CO 80309 USA

来源：

IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS | 2003年 / 39卷 / 02期

关键词：

SEPIC CONVERTERS; CONDUCTION MODE; DESIGN; CUK;

D O I：

10.1109/TAES.2003.1207258

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

The distributed power systems of future commercial aircraft will adopt variable frequency generation (360 to 800 Hz). Front-end converters in the system will be required to have a high efficiency and a low total harmonic distortion (THD) of the input current. This paper explains the design of a zero-voltage-switching (ZVS) active-clamped isolated low-harmonic SEPIC rectifier for such applications. Utilization of the transformer leakage inductance for ZVS and a single-layer transformer design contribute to a high efficiency. An accurate averaged switch model has been developed, which shows that the control-to-input-current transfer function of this converter does not exhibit resonances observed in the conventional SEPIC. As a result, for closed-loop operation using average current control, damping of the coupling capacitor is not required. Operating at a switching frequency of 200 kHz, an experimental 100 W, 28 V output rectifier achieves a THD of 3-4% and efficiency exceeding 90% over the entire line frequency range.

引用

页码：462 / 470

页数：9

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