A solar-storage integrated power supply that can realize independent load distribution of series and parallel operation

Abstract

The invention relates to an optical-storage integrated power supply that can realize independent load distribution of series and parallel operation, including a main power circuit and a power control circuit. The main power circuit includes: a photovoltaic battery, a DC / DC circuit 1, a DC / DC circuit 2, Energy storage device, output terminal 1, output terminal 2; power control circuit includes: current detection circuit 1, current detection circuit 2, voltage detection circuit 1, voltage detection circuit 2, controller 1, controller 2, drive circuit 1, drive Circuit 2, power generation circuit, distribution signal generation circuit, bus signal generation circuit, load distribution circuit, bus 1, bus 2. The present invention is based on information such as the maximum power of the photovoltaic cell and the remaining capacity of the energy storage device during series and parallel operation, in order to realize the maximum energy conversion of the photovoltaic cell and improve the utilization rate of the remaining capacity of the energy storage device, and then realize the power supply of each power supply. Autonomous load sharing control.

Description

Technical field [0001] The present invention relates to a light storage integrated power source having an integrated structure of a photovoltaic cell and an energy storage device, in particular, when running in multiple series or parallel, information on the public busbar can be used to achieve autonomous load allocation control. Integrated power supply. Background technique [0002] With the development of society, the issue of traditional energy is getting more and more important, which makes the utilization of new energy becomes particularly important, and the new energy in the source is the cleaning and endless, so solar photovoltaic power generation technology is more For a wide range. Since the output of the photovoltaic battery has significant randomness and intermittent, it is currently combined with the photovoltaic battery to the energy storage device to constitute an output stable light storage integrated power source. In practical applications, the light storage integ...

AI Technical Summary

Problems solved by technology

For multiple photovoltaic-storage integrated power supplies, whether they are connected in parallel or in series, due to the existence of various factors such as the internal parameters and working conditions of each photovoltaic cell, and the difference in the remaining capacity of the energy storage device, the existing load distribution is limited. The effect of the control and performance of the power system

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