A variable amplitude multilevel voltage source inverter used for transient power dip compensation

Proceedings of EMPD '98. 1998 International Conference on Energy Management and Power Delivery (Cat. No.98EX137) Pub Date : 1998-03-03 DOI:10.1109/EMPD.1998.702833

F. Huang, P.I. Lim, E.K. Goh

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引用次数: 3

Abstract

Multilevel voltage source inverters have been considered as being suitable for high voltage, high power applications. Typical applications can be found in static VAr generation, power line conditioning, and voltage balancing. Multilevel voltage source inverters consist of many single-phase inverters. Charged capacitors may be used as DC input voltage sources. In most cases, the single-phase inverters are treated as identical. This paper presents the design and implementation of a variable amplitude multilevel voltage source inverter. In this inverter, capacitors used as input DC voltage sources are charged at different voltage levels according to pre-designed values. Several approaches in searching the optimal levels are investigated. A near optimal scheme is studied. It is found that the near optimal pattern has almost the same level of harmonics distortion as the optimal one. The near optimal scheme is implemented using a TMS 320C50 DSP card. Some experimental results are compared with simulated data. The two results are in agreement.

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一种用于暂态功率倾斜补偿的可变幅度多电平电压源逆变器

多电平电压源逆变器被认为适用于高电压、高功率应用。典型的应用可以在静态无功产生、电力线调节和电压平衡中找到。多电平电压源逆变器由多个单相逆变器组成。充电电容器可用作直流输入电压源。在大多数情况下，单相逆变器被视为相同的。本文介绍了一种可变幅值多电平电压源逆变器的设计与实现。在该逆变器中，作为输入直流电压源的电容器根据预先设计的值在不同的电压水平上充电。研究了几种搜索最优层次的方法。研究了一种近似最优方案。结果表明，近似最优模式与最优模式具有几乎相同的谐波失真水平。采用tms320c50 DSP卡实现了近似最优方案。将部分实验结果与仿真数据进行了比较。这两个结果是一致的。

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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Proceedings of EMPD '98. 1998 International Conference on Energy Management and Power Delivery (Cat. No.98EX137)

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