High-voltage-input, low-voltage-output, series-connected converters with uniform voltage distribution

K. Siri, M. Willhoff, K. Conner, Duc-Quan Tran
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引用次数: 2

Abstract

This paper presents a power system consisting of current-mode, shared-bus converters configured as Series-Input, Parallel-Output (SIPO). These current-mode commercial-off-the-shelf (COTS) dc-dc converters transform a 1kV system input voltage into a 5V output with up to 500 Watts of power. The SIPO power system provides for system expansion and preserves the standalone converter's efficiency of over 80%. Uniform input voltage distribution control improves power system reliability by distributing thermal stresses equally among the series-connected converters. Furthermore, robust system stability and uniform input voltage distribution among series-connected converters is realized without control conflict. A computer simulation and an experimental 1 kV 500 W prototype were successfully implemented to validate the uniform voltage distribution power converter architecture.
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高压输入,低压输出,电压分布均匀的串联变换器
本文提出了一种由串行输入并联输出(SIPO)的电流型共享总线转换器组成的电力系统。这些电流模式商用现货(COTS) dc-dc转换器将1kV系统输入电压转换为5V输出,功率高达500瓦。SIPO电源系统提供系统扩展,并保持独立转换器的效率超过80%。输入电压均匀分布控制通过在串联变流器之间均匀分布热应力来提高电力系统的可靠性。实现了系统的鲁棒稳定性和串联变流器之间输入电压分布均匀,且无控制冲突。通过计算机仿真和1 kV 500 W的实验样机,验证了均匀配电电源变换器的结构。
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