Control Strategy for Modular Multilevel Converter based on Single-phase Power Factor Correction Converter
Control Strategy for Modular Multilevel Converter based on Single-phase Power Factor Correction Converter
复制标题
基于单相功率因数校正变换器的模块化多电平变换器控制策略
DOI：
10.1541/ieejjia.6.46
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发表时间：
2017
影响因子：
1.7
通讯作者：
J. Itoh
中科院分区：
文献类型：
--
作者：
Toshiki Nakanishi;J. Itoh
提出了一种采用模块化多电平变换器（MMC）的降压整流器控制策略。本文首先讨论了电路结构和提出的控制方法。控制系统的主要部分是基于单相功率因数校正变换器（PFC变换器）的控制方法，这意味着单相功率因数校正变换器的常规控制技术可以简单地应用于MMC。在主体部分增加了实现降压整流和电容电压平衡的控制元件。此外，在电容电压平衡控制方法中，不需要设计控制参数。通过仿真验证了该降压整流器的有效性。仿真结果表明，该变流器实现了从6.6 kV电网电压到400 V直流电压的降压整流。此外，降压整流器保持所有电容器电压恒定。最后，通过微缩模型实验验证了一个基本操作。结果，降压整流器从200 V的输入电网电压转换为75 V的输出直流电压。此外，所提出的降压整流器将每个电池的电容电压维持在130 V的电压指令。电池电容器的电压指令与测量电压之间的最大误差小于2%。
This paper proposes a novel control strategy for a step-down rectifier that applies a modular multilevel converter (MMC). This paper first discusses the circuit configuration and the proposed control method. The main part of the control system is based on the control method for the single-phase power factor correction converter (PFC converter), which means that the conventional control techniques of the single-phase PFC converter can be simply applied to the MMC. The control elements which achieve step-down rectification and capacitor voltage balancing are added to the main part. Besides, in capacitor voltage balancing of the proposed control method, it is not necessary to design the control parameters. In addition, the operation of the proposed step-down rectifier is confirmed by the simulation. The simulation results show that the proposed converter achieves step-down rectification from the grid voltage of 6.6 kV to the DC voltage of 400 V. Moreover, the step-down rectifier maintains all capacitor voltages constant. Finally, a fundamental operation is confirmed by experiments using a miniature model. As the results, the step-down rectifier converts from the input grid voltage of 200 V to the output DC voltage of 75 V. Besides, the proposed step-down rectifier maintains the capacitor voltage of each cell to the voltage command of 130 V. The maximum error between the voltage command of the cell capacitor and the measured voltage is less than 2%.
影响因子：
6.7
作者：
Hagiwara, Makoto;Akagi, Hirofumi
通讯作者：
Akagi, Hirofumi