| A new three-phase 5-level current-source inverter |
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| 作者姓名： | BAO Jian-yu BAI Zhi-hong WANG Qing-song ZHANG Zhong-chao |
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| 作者单位： | School of Electrical Engineering，Zhejiang University，Hangzhou 310027，China |
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| 基金项目： | Project (No. 50477033) supported by the National Natural Science Foundation of China |
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| 摘 要： | INTRODUCTION Multilevel converters can offer substantial benefits for higher power applications compared to two level inverters, including reduced harmonics, and increased power ratings because of reduced switching device voltage and current stresses. However, until recently, multilevel voltage source inverters (Peng, 2001) have been the dominant multilevel topology, despite the fact that current-source inverters (CSIs) have many advantages for higher power applications. These include mo…
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| 关 键 词： | 三相 电源逆变器 CSI 和声学 脉宽调制 |
| 收稿时间： | 2006-03-20 |
| 修稿时间： | 2006-10-21 |
A new three-phase 5-level current-source inverter |
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| BAO Jian-yu BAI Zhi-hong WANG Qing-song ZHANG Zhong-chao.A new three-phase 5-level current-source inverter[J].Journal of Zhejiang University Science,2006,7(12):1973-1978. |
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| Authors: | Jian-yu Bao Zhi-hong Bai Qing-song Wang Zhong-chao Zhang |
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| Institution: | (1) School of Electrical Engineering, Zhejiang University, Hangzhou, 310027, China |
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| Abstract: | The new three-phase 5-level current-source inverter (CSI) proposed in this paper was developed by connecting three separate single-phase 5-level CSIs in series, and its operational principle was analyzed. There are two major problems existing in current-source multilevel inverters, one is the complex PWM control method (2-logic to 3-logic conversion), and the other is the problem of current-unbalance between different levels. A simple current-balance control method via DC current feedback is applied in each single-phase 5-level CSI cell to implement the current-balance control between different levels. And to reduce the output current harmonics, POD PWM control technique was used. Simulation and experimental results showed that this new three-phase 5-level CSI topology operates correctly. |
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| Keywords: | Three-phase Current-source inverter (CSI) 5-level Harmonics POD PWM |
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