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A cascade multilevel inverter is proposed for static VAr 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
Published in:
Industry Applications, IEEE Transactions on
(Volume:33
,
Issue:
3
)
Date of Publication: May/Jun 1997
- Page(s):
- 748 - 755
- ISSN :
- 0093-9994
- INSPEC Accession Number:
- 5598530
- Digital Object Identifier :
- 10.1109/28.585865
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 06 August 2002
- Issue Date :
- May/Jun 1997
- Sponsored by :
- IEEE Industry Applications Society
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