Solar off-grid power generation on-line fault detecting device

Abstract

The invention belongs to the technical field of solar photovoltaic power generation, and particularly relates to a solar off-grid power generation on-line fault detecting device. The invention provides a solar off-grid power generation on-line fault detecting device. The device comprises a current signal detecting circuit, a voltage signal detecting circuit, a battery body, an environmental temperature detecting circuit, an irradiation intensity detecting circuit, a remote wireless communication circuit, a keyboard circuit, an LCD display screen circuit and a main control CPU circuit, whereinthe signal output port of the current signal detecting circuit is connected with the signal input port of the main control CPU circuit, the signal output port of the voltage signal detecting circuit is connected with the signal input port of the main control CPU circuit, the battery body and the signal output port of the environmental temperature detecting circuit are connected with the signal input port of the main control CPU circuit, the signal output port of the irradiation intensity detecting circuit is connected with the signal input port of the main control CPU circuit, the signal inputport of the remote wireless communication circuit is connected with the signal output port of the main control CPU circuit, the signal output port of the keyboard circuit is connected with the signalinput port of the main control CPU circuit, the signal transmission port of the LCD display screen circuit is connected with the signal transmission port of the main control CPU circuit and the signal transmission port of an LCD screen respectively; and the control signal input port of the keyboard circuit is connected with the 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 online fault detection device for solar off-grid power generation. 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 distributed constru...

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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