直流微电网一次串联二次并联APWM变换器

2017 IEEE 12th International Conference on Power Electronics and Drive Systems (PEDS) Pub Date : 2017-12-01 DOI:10.1109/PEDS.2017.8289253

R. Lin, Y. C. Huang, S. Jian

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引用次数: 0

摘要

本文研究了一种软开关直流变换器在直流微电网系统中的应用。所采用的变换器有三个半桥电路，采用串并联方式，以降低电源开关的额定电压和整流二极管的额定电流。因此，可以利用具有低电压应力和低传导电阻的MOSFET。采用非对称PWM方案实现低开关损耗和高电路效率。输入飞行电容器用于一次侧，以平衡输入分裂电压。每个电源开关的电压应力被固定在输入电压的三分之一处。最后，通过实验验证了该电路的性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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APWM converter with primary-series and secondary parallel connection for DC micro-grid system

A soft switching DC converter in DC micro-grid system applications is studied in this paper. The employed converter has three half-bridge circuits with series and parallel connection so as to reduce voltage rating of power switches and current rating of rectifier diodes. Therefore, MOSFET with low voltage stress and low conduction resistance can be utilized. Asymmetric PWM scheme is used to achieve low switching losses and high circuit efficiency. Input flying capacitors are used in the primary side to balance input split voltages. The voltage stress of each power switch is clamped at one third of input voltage. Finally, experiments are provided to demonstrate the circuit performance.

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2017 IEEE 12th International Conference on Power Electronics and Drive Systems (PEDS)

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