Flyback-based high step-up converter with reduced power processing stages
Flyback-based high step-up converter with reduced power processing stages
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DOI：
10.1049/iet-pel.2011.0204
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发表时间：
2012-01-01
影响因子：
2
通讯作者：
Agelidis, V. G.
中科院分区：
文献类型：
--
作者：
Chu, G. M. L.;Lu, D. D. C.;Agelidis, V. G.
本研究提出一种非隔离式转换器，其是基于降低功率处理的概念，而衍生自传统的反激式拓扑结构。与传统的反激式变换器相比，该变换器具有更高的电压增益，提高了效率，降低了元件应力，由于泄漏能量的回收和钳位功率开关电压，但仍保留了电路简单，成本低的优点。一个完整的分析，包括转换器的操作和它的直流和交流characterisations的文件。使用一个60 W的实验室原型工作在100 kHz，24 V的输入电压和200 V的调节输出电压，效率的提高，稳态和瞬态响应性能的实验评估，以验证所提出的转换器的有效性。
This study proposes a non-isolated converter derived from the conventional flyback topology based on the concept of reduced power processing. The proposed converter has higher-voltage gain, improved efficiency and reduced component stresses owing to recycling of leakage energy and clamped power switch voltage when compared with the conventional flyback converter, and yet retains the advantages of circuit simplicity and low cost. A complete analysis including converter operation and its dc and ac characterisations are presented in the paper. Using a 60 W laboratory prototype operating at 100 kHz with 24 V input voltage and 200 V regulated output voltage, experimental evaluation of the efficiency improvement, steady-state and transient-response performance are presented to verify the effectiveness of the proposed converter.