Intelligent fault detection system for photovoltaic off-grid power station

Abstract

The invention belongs to the technical field of solar photovoltaic power generation, and particularly relates to an intelligent fault detection system for a photovoltaic off-grid power station. The intelligent fault detection system for the photovoltaic off-grid power station is provided and comprises a current signal detection circuit, a voltage signal detection circuit, a storage battery body and environment temperature detection circuit, an irradiation intensity detection circuit, a remote wireless communication circuit, a keyboard circuit, an LCD circuit and a master control CPU circuit, and is structurally characterized in that a signal output port of the current signal detection circuit is connected with a signal input port of the master control CPU circuit; a signal output port of the voltage signal detection circuit is connected with the signal input port of the master control CPU circuit; a signal output port of the storage battery body and environment temperature detection circuit is connected with the signal input port of the master control CPU circuit; a signal output port of the irradiation intensity detection circuit is connected with the signal input port of the master control CPU circuit; a signal input port of the remote wireless communication circuit is connected with a signal output port of the master control CPU circuit; a control signal output port of the keyboard circuit is connected with a control signal input port of the master control CPU circuit; a signal transmission port of the LCD circuit is connected with a signal transmission port of the master control CPU circuit and a signal transmission port of an LCD; a control signal input port of the keyboard circuit is connected with a control signal output port of a keyboard.

Description

technical field [0001] The patent of the invention belongs to the technical field of solar photovoltaic power generation, and in particular relates to an intelligent fault detection system for photovoltaic off-grid power stations. Background technique [0002] Photovoltaic off-grid power station is a photovoltaic power generation system that operates independently. It does not have any interface with the public grid and belongs to a power generation system integrating generation, storage and supply. Its basic working principle is that the photovoltaic module generates electric energy under the sunlight, and the electric energy is supplied to the load through the off-grid controller, and the excess electric energy is stored in the battery. When the light is insufficient or at night, the electric energy in the battery passes through the off-grid controller. Continue to supply power to the load. Photovoltaic off-grid power stations are small in scale and suitable for distribut...

AI Technical Summary

Problems solved by technology

At present, there is still a lack of mature and effective fault diagnosis equipment for photovoltaic off-grid power stations, especially portable fault diagnosis equipment with wireless communication capabilities

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