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Control Strategies for a Hybrid Seven-level Inverter
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| Author(s) |
R. Lund; M. D. Manjrekar; P. Steimer; T. A. Lipo |
| Abstract |
This paper is devoted to the investigation of control techniques applicable for seven-level 4.16 kV hybrid inverter. A detailed analysis of a hybrid modulation technique, which incorporates stepped synthesis in conjunction with variable pulse width of the consecutive steps, is included. In addition, variations of multicarrier Pulse Width Modulation (PWM) techniques related to the disposition and phase shifting and their comparative evaluation is presented in this paper. The performance attributes of conventional techniques such as staircase modulation and programmed PWM are assessed and optimization of switching angles to minimize the harmonic distortion at different modulation depths is discussed. Operating principles, spectral structure and other practical issues are studied. Computer simulations accompanied with experimental results are presented in the paper. |
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| Filename: | EPE1999 - PP00419 - Manjrekar.pdf |
| Filesize: | 976.7 KB |
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| Type |
Members Only |
| Date |
Last modified 2004-04-06 by System |
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