工作于梯形波形的模块化多电平dc-dc变换器的能量控制方法

The 10th International Conference on Power Electronics, Machines and Drives (PEMD 2020) Pub Date : 1900-01-01 DOI:10.1049/icp.2021.1135

B. M. Saleh, A. Costabeber, A. Watson, F. Tardelli, J. Clare

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引用次数: 0

摘要

本文提出了一种梯形波形模块化多电平DC-DC变换器(MMC-DC-DC)的能量控制方案。在梯形波形中，电池电容器在基频下切换，它们在半周期的大部分时间内都插入，而在另一半的大部分时间内都绕过，这使得能量控制更具挑战性。所提出的能量控制方法是通过控制一个子模块(SM)的占空比来修改平均电压并添加能量校正所需的功率。在PLECS中建立了10MW, 20kV-20kV MMC-DC-DC变换器的仿真系统，验证了所提出的控制方法。

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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AN ENERGY CONTROL METHOD FOR MODULAR MULTILEVEL DC-DC CONVERTERS OPERATING WITH TRAPEZOIDAL WAVEFORMS

In this paper, an energy control scheme is proposed for a Modular Multilevel DC-DC converter (MMC-DC-DC) operating with trapezoidal waveforms. In a trapezoidal wave-shaping, the cell capacitors are switched at fundamental frequency and they are all inserted for the majority of a half cycle and all bypassed for most of the other half, making the energy control more challenging. The proposed energy control method is obtained by controlling the duty cycle of one submodule (SM) to modify the average voltage and to add the amount of power required for energy correction. A simulation system for a 10MW, 20kV-20kV MMC-DC-DC converter has been built in PLECS to validate the proposed control method.

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The 10th International Conference on Power Electronics, Machines and Drives (PEMD 2020)

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