This article is a Turkish Middle East Technical University: (author CEM YOLAÇAN) Master's thesis, a total of 124.
In this paper, based on SiC power MOSFETs, an industrial three-phase PWM rectifier is designed and an experimental prototype is designed. The topology of the PWM rectifier is a three-phase full-bridge topology, which can convert a three-phase 400V AC line voltage to a desired voltage level between 500V and 1000V. The PWM rectifier has the ability to allow active power to flow in both directions. The new technology SiC power MOSFET can work at a higher frequency than the IGBT, but has lower switching losses and comparable conduction losses, and therefore has higher efficiency. In addition, operating at higher frequencies provides much lower noise levels and less harmonic distortion. The theoretical results have been verified through experiments.
In this thesis work, a three phase PWM Rectifier for industry applications will be designed by using SiC Power MOSFETs and its laboratory prototype will then be implemented. The topology of the PWM rectifier is the three phase full bridge topology to convert three phase 400 V AC line-to-line voltage to desirable voltage levels between 500V and 1000V. The PWM Rectifier has the capability of permitting the flow of active power in both directions. The new technology SiC Power MOSFETs can operate at higher frequencies than IGBTs which provide higher efficiency because of lower switching losses and comparable conduction losses. Furthermore, operation at higher frequencies also provides us much lower acoustic noise levels and less harmonic distortion in line current waveforms during the operation of the rectifier. The theoretical results will be verified by experimental work.
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引言 - Industrial application of PWM rectifier
- The working principle and working mode of PWM rectifier
- Experimental work
- in conclusion
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