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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Junfeng Liu Cheng, K.W.E. Yuanmao Ye |
| Copyright Year | 1986 |
| Abstract | The increase of transmission frequency reveals more merits than low- or medium-frequency distribution among different kinds of power applications. High-frequency inverter serves as source side in high-frequency ac (HFAC) power distribution system (PDS). However, it is complicated to obtain a high-frequency inverter with both simple circuit topology and straightforward modulation strategy. A novel switched-capacitor-based cascaded multilevel inverter is proposed in this paper, which is constructed by a switched-capacitor frontend and H-Bridge backend. Through the conversion of series and parallel connections, the switched-capacitor frontend increases the number of voltage levels. The output harmonics and the component counter can be significantly reduced by the increasing number of voltage levels. A symmetrical triangular waveform modulation is proposed with a simple analog implementation and low modulation frequency comparing with traditional multicarrier modulation. The circuit topology, symmetrical modulation, operation cycles, Fourier analysis, parameter determination, and topology enhancement are examined. An experimental prototype with a rated output frequency of 25 kHz is implemented to compare with simulation results. The experimental results agreed very well with the simulation that confirms the feasibility of proposed multilevel inverter. |
| Sponsorship | IEEE Power Electronics Society |
| Starting Page | 4219 |
| Ending Page | 4230 |
| Page Count | 12 |
| File Size | 1713454 |
| File Format | |
| ISSN | 08858993 |
| Volume Number | 29 |
| Issue Number | 8 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2014-01-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Inverters Frequency modulation Switches Logic gates Circuit topology Capacitors symmetrical phase-shift modulation (PSM) Cascaded H-Bridge high-frequency ac (HFAC) multilevel inverter switched capacitor (SC) |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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