Independent photovoltaic power generation system control circuit

Abstract

The invention discloses an independent photovoltaic power generation system control circuit. The independent photovoltaic power generation system controller circuit comprises a main control unit, a signal acquisition unit, a load power supply unit and a display unit. The main controller unit comprises an ARM microcontroller, a crystal oscillator circuit and a rest circuit. The signal acquisition unit comprises an A / D conversion circuit module, a solar cell panel output voltage detection circuit, a solar cell panel output current detection circuit, a storage battery output voltage detection circuit, a storage battery charging current detection circuit, a DC load voltage detection circuit, a DC load current detection circuit, an AC load voltage detection circuit and an AC load current detection circuit. The load power supply unit comprises a charging control circuit module, a DC / DC conversion circuit module, a storage battery and an inverter. The display unit comprises a display drive circuit module, an LED screen, an operation indication lamp and a fault indication lamp. The independent photovoltaic power generation system control circuit has the advantages of reasonable design, quite high solar energy utilization rate and good application effects, thereby being suitable for popularization and application.

Description

technical field [0001] The invention relates to the technical field of solar photovoltaic power generation, in particular to a control circuit for an independent photovoltaic power generation system. Background technique [0002] When non-renewable energy sources such as electricity, coal, and oil are running out frequently, and energy issues have increasingly become a bottleneck restricting the development of the international society and economy, more and more countries have begun to implement the "Sunshine Plan" to develop solar energy resources and seek new impetus for economic development. Some high-level nuclear research institutions in Europe have also begun to turn to renewable energy. Driven by the huge potential of the international photovoltaic market, the solar cell manufacturing industries of various countries are scrambling to invest huge sums of money and expand production in order to compete for a place. Due to the influence of climate, latitude, longitude a...

AI Technical Summary

Problems solved by technology

Due to the influence of climate, latitude, longitude and other natural conditions when solar energy radiates to the ground, there are problems of intermittent, light direction and intensity changing with time, which put forward higher requirements for the collection and utilization of solar energy. At present, the utilization of solar energy The utilization rate of solar energy is still relatively low, and the utilization field of solar energy needs to be broadened urgently.

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