A simplified control system for series connected, AC-DC PWM converters, for back-to-back multiterminal systems
作者： J.W. Dixon , D.R. Veas , B.T. Ooi
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摘要: Voltage source PWM rectifiers are able to work with near sinusoidal current waveforms and unity or even leading power factor. From the point of view DC link, these reverse through instead voltage reversal, allowing back-to-back multiterminal converter topologies. However, some problems related this system complexity control circuit, stability voltage-sharing between converters. This paper analyzes proposes a simple solution. Based on detection voltage, using unique predefined pattern, stored in an EPROM, for each converter. The patterns phase shifted following load variations, link. main characteristics solution are: (a) there is no master rectifier (all hierarchically identical); (b) does not depends size capacitors; (c) it can at factor all conditions; (d) be adjusted zero regulation. Computer simulations, mathematical analyses experimental results 2 kW regulated prototype included paper. >
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