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Loss-Oriented Asymmetrical PWM Technique for High-frequency Impedance Source Converters
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| Author(s) |
Piotr MAJTCZAK |
| Abstract |
The paper presents four asymmetrical pulse width modulation techniques for three-phase impedance source converters operating at high switching frequencies. The concept behind all proposed methods is to introduce single-phase shoot-trough states and reduce commutation currents of fast-switching SiC MOSFETs. All techniques are explained and verified by means of Saber simulations and laboratory experiments. Advantages and negative aspects, such as increased on-state losses, are discussed in reference to state-of-the-art techniques. Performed measurements at 100kHz/6kVA model of the quasi-Z-source inverter show that in selected operation areas new techniques lead to slightly improved efficiency without loss of input and output currents quality. |
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| Filename: | 0175-epe2017-full-11060232.pdf |
| Filesize: | 1.326 MB |
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| Type |
Members Only |
| Date |
Last modified 2018-04-17 by System |
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