METHODS AND APPARATUSES FOR PHOTOVOLTAIC POWER MANAGEMENT

摘要

Methods and apparatuses for equalizing voltages across a plurality of photovoltaic units connected in series are provided. The apparatus may include a plurality of energy storage devices, each of which includes a resonant circuit. In a first configuration, each of the energy storage devices is configured to be connected in parallel with one of a first set of the photovoltaic units. In a second configuration, each of the energy storage devices is configured to be connected in parallel with one of a second set of the photovoltaic units. The apparatus also includes a plurality of switches configured to switch between the first configuration and the second configuration, to equalize the voltages across the photovoltaic units. Each resonant circuit may include an inductor and a capacitor that are connected in series.