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| Design and Analysis of a Novel Pumping-Voltage Multilevel Inverter Based on Partial Charging of DC Capacitor |
| Ding Shichuan1, 2, Cheng Ming1, 4, Wang Zheng1, 4, Chau K.T.3, Hua Wei1, 4 |
| 1. Southeast University Nanjing 210096 China 2. Anhui University Hefei 230039 China; 3. University of Hong Kong Hong Kong China 4. Yancheng Institute of New Energy Vehicles of Southeast University Yancheng 224007 China |
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Abstract A novel multilevel inverter based on partial-charging of the DC capacitor is proposed in this paper. By using the partial-charging circuits for the DC capacitor, the voltage is boosted in the DC link, which in turn generates the multilevel AC output voltage with the cooperation of an inverter circuit and its control strategy. Compared to the traditional multilevel inverters, the proposed multilevel inverter offers multiple voltage stairs more flexibly with less power devices. Meanwhile, the THD of the output voltage is significantly reduced. Both simulation and experiment results are given to verify the validity of the proposed multilevel inverter, and confirm its good operating performance.
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Received: 28 February 2012
Published: 25 March 2014
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2013, Vol. 28 
