Abstract
This paper proposes a step-up DC–DC converter for a power electronic circuit for standalone photovoltaic systems with battery energy storages. The proposed DC–DC converter effectively converts low DC battery voltage into high DC-link voltage. It operates with soft-switching characteristics, which can reduce switching power losses. The proposed converter operates without output voltage feedback, which simplifies its control design. The operation principle of the proposed converter was described, along with the overall system configuration. The experimental results were discussed for the 500-W prototype system using a 12-V lead-acid battery.
Highlights
IntroductionThe standalone standalone photovoltaic photovoltaic (PV)(PV) systems systems are are widely widely used used in in the the off-grid off-grid areas. areas
The general, the standalone systems consist of photovoltaic panels, a maximum power general, the standalone PV systems consist of photovoltaic panels, a maximum power pointtracking tracking(MPPT)
This paper proposed a step-up DC–DC converter for a power electronic circuit for
Summary
(PV) systems systems are are widely widely used used in in the the off-grid off-grid areas. PV systems consist of photovoltaic panels, a maximum power general, the standalone PV systems consist of photovoltaic panels, a maximum power pointtracking tracking(MPPT). (MPPT)charger, charger,a battery a battery energy storage, a standalone inverter [1,2]. MPPT charger extracts the maximum power from the panshown, The MPPT charger extracts the maximum power from the PV panels els and charges battery. The battery stores excesspower, power,which whichcan canbe bestably stably supplied supplied and charges thethe battery. 12-V lead-acid lead-acid battery battery is is widely widely used used since since the the lead-acid lead-acid battery battery is relatively relatively to inexpensive and and easy easy to to handle. DC–DC inexpensive converterand andthe thesingle-phase single-phase inverter. This inverter converts battery voltage converter inverter.
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