Dynamic performance and control of a static var generator using cascade multilevel inverters

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A cascade multilevel inverter is proposed for static VAR shifting, compensation/generation applications. The new cascade M-level inverter consists of (M-1)/2 single-phase full bridges in which each bridge has its own separate dc source. This inverter can generate almost sinusoidal waveform voltage with only one time switching per cycle. It can eliminate the need for transformers in multipulse inverters. A prototype static VAR generator (SVG) system using 11- level cascade inverter (21-level line-to-line voltage waveform) has been built. The output voltage waveform is equivalent to that of a 60- pulse inverter. This paper focuses on dynamic performance of the cascade inverter ... continued below

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7 p.

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Peng, Fang Zheng & Lai, Jih-Sheng October 1, 1996.

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This article is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 19 times . More information about this article can be viewed below.

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Description

A cascade multilevel inverter is proposed for static VAR shifting, compensation/generation applications. The new cascade M-level inverter consists of (M-1)/2 single-phase full bridges in which each bridge has its own separate dc source. This inverter can generate almost sinusoidal waveform voltage with only one time switching per cycle. It can eliminate the need for transformers in multipulse inverters. A prototype static VAR generator (SVG) system using 11- level cascade inverter (21-level line-to-line voltage waveform) has been built. The output voltage waveform is equivalent to that of a 60- pulse inverter. This paper focuses on dynamic performance of the cascade inverter based SVG system. Control schemes are proposed to achieve a fast response which is impossible for a conventional static VAR compensator (SVC). Analytical, simulated and experimental results show the superiority of the proposed SVG system.

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7 p.

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OSTI as DE96012345

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  • 1996 Industry Applications Society annual meeting, San Diego, CA (United States), 6-10 Oct 1996

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  • Other: DE96012345
  • Report No.: CONF-961096--4
  • Grant Number: AC05-96OR22464
  • Office of Scientific & Technical Information Report Number: 389068
  • Archival Resource Key: ark:/67531/metadc678105

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  • October 1, 1996

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  • July 25, 2015, 2:20 a.m.

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  • Jan. 21, 2016, 8:04 p.m.

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Peng, Fang Zheng & Lai, Jih-Sheng. Dynamic performance and control of a static var generator using cascade multilevel inverters, article, October 1, 1996; Tennessee. (digital.library.unt.edu/ark:/67531/metadc678105/: accessed September 26, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.