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A New Multilevel Inverter Topology with a Hybrid Approach
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| Author(s) |
B.-S. Suh; Y-H. Lee; D-S Hyun; T.A. Lipo |
| Abstract |
This paper presents some novel cascade multilevel inverter approach for high voltage and high power inverter applications. It is based on the series connection of the half and full bridge inverter cells. With the conventional cascade H-bridge multilevel inverters composed of the only full bridge inverter cells, an even level-system can not be obtained, which may cause some limitation in selecting the switching devices and the number of inverter levels regarding maximum inverter output voltage magnitude. The proposed configuration allows any kinds of even-level inverters leading to utilizing all of the levels like the diode-clamped multilevel inverter circuit, having inherent advantages of the cascade H-bridge inverters. Structural and operational characteristics are discussed and also an effective carrierwave-based space vector PWM scheme is given for ac drive applications. Validity of the proposed circuit and effectiveness of the PWM method are verified by some simulation and experimental results. |
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| Filename: | EPE1999 - PP00358 - Suh.pdf |
| Filesize: | 198.8 KB |
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| Type |
Members Only |
| Date |
Last modified 2004-03-23 by System |
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