Power Electronics in Latest Small-Scale High Frequency Switching Power Converters

This research is mainly concerned with a standalone photovoltaic (PV) generation system for low power DC applications placed where the commercial AC grid connection is not supported. In this paper, basic and improved circuit topologies and the control schemes of stand-alone photovoltaic generation system are proposed. To prevent battery from deep discharge, Electric Double Layer Capacitor (EDLC) is incorporated into the proposed systems as combined energy storage device in parallel with conventional lead battery. The fundamentals of operating performances and effectiveness of proposed stand-alone PV system are illustrated and evaluated on the basis of a practical point of view.Keywords-Stand alone photovoltaic system, DC-DC converters, combined power storage and EDLC.

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“…S a2 turns on under the conditions of ZV & ZCS. Mode5 (t 5t 6 ) At t 5 , S a2 is turned off under ZVS. Mode6 (t 6t 7 )…”

Section: Mode4 (T 4t 5 )mentioning

confidence: 99%

Stand-alone photovoltaic generation system with combined storage using lead battery and EDLC

Nakayama

Hiraki

Tanaka

et al. 2008

2008 13th International Power Electronics and Motion Control Conference

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“…Soft switching circuits using zero‐voltage switching (ZVS) and zero current switching (ZCS) or a combination of the two have been actively developed as a countermeasure to the increasing switching loss associated with the use of higher frequencies in high‐frequency inverters that are used in induction heating and high‐frequency link dc–dc converters . The switching loss can be reduced by these soft switching circuits, but problems involving the settings of the load range arise, owing to limits on the soft switching region due to the relation between the load circuit constants and the operating frequency.…”

Section: Introductionmentioning

confidence: 99%