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A ZCS boost converter using two auxiliary switches, for active power factor correction (APFC), is proposed in this paper. All the switching devices used in this converter are turned-on and turned-off at ZCS with minimum current stress. The boost rectifier diode is also operated under soft-switched condition. The boost switch and one of the auxiliary switches have a common drive and are turned on simultaneously...
This paper presents a modified maximum power point tracker (MPPT) for a standalone PV system. In this research a Particle Swarm Optimization (PSO)-based method is re-initialised by a variable step size (VSS) incremental conductance (IncCond) MPPT. The main motivation in this research is to eliminate the output ripple, and also to shorten the tracking time in rapidly changing insolation condition (RCIC)...
Photovoltaic applications require regulation by high performance dc-dc converters since the dc voltage generated is normally unregulated and depends heavily on load and ambient conditions. In this paper, a ZV-ZCS full-bridge phase-shift PWM dc-dc converter is being proposed for photovoltaic cell applications. The proposed converter operates at high switching frequency with high efficiency and large...
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