Title :
Study on an active clamping soft switching grid-connected inverter
Author :
Du, Chengrui ; Zhang, Xu ; Xu, Dehong
Author_Institution :
Inst. of Power Electron., Zhejiang Univ. Hangzhou, Hangzhou, China
Abstract :
An active clamping soft-switching three-phase grid-connected inverter is introduced in this paper. With adding a simple auxiliary branch, all of the switches in the inverter can realize zero voltage switching (ZVS). No additional voltage stress will be caused. A modulation scheme to realize high efficiency power conversion is presented in this paper. Especially when the grid side power factor is not unity, modulation scheme is discussed. The proposed modulation scheme is verified in a 30kW prototype.
Keywords :
invertors; power factor; switching convertors; zero voltage switching; active clamping; auxiliary branch; grid side power factor; power 30 kW; power conversion; soft switching grid-connected inverter; voltage stress; zero voltage switching; Bridge circuits; Integrated circuits; Inverters; Reactive power; Switches; Vectors; Zero voltage switching;
Conference_Titel :
Applied Power Electronics Conference and Exposition (APEC), 2012 Twenty-Seventh Annual IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4577-1215-9
Electronic_ISBN :
978-1-4577-1214-2
DOI :
10.1109/APEC.2012.6165825
