Protection circuit for preventing misoperations and solar power generation system applying same

Abstract

The invention relates to a protection circuit for preventing misoperations, which is connected among a storage battery, a load circuit and a solar battery panel. The protection circuit comprises an MOS (Metal Oxide Semiconductor) protection circuit, a first short circuit detection circuit, a second short detection circuit, a first signal module and a second signal module, wherein the MOS protection circuit is used for disconnecting the load circuit when the storage battery is inversely connected; the first short circuit detection circuit is used for detecting the first sampling current of theconducting impedance of a first MOS tube when the load circuit is connected; the second short circuit detection circuit is used for detecting the second sampling current of the conducting impedance of a third MOS tube when a charge circuit is connected; the first signal module is used for controlling a first switching circuit to switch on or off the load circuit according to the first sampling current of the first short detection circuit; and the second signal module is used for controlling a second switching circuit to switch on or off the charge circuit according to the second sampling current of the second short detection circuit. The invention also designs a solar power generation system applying the protection circuit. By adopting the invention, the misoperations of constructors can be avoided, and the purpose of automatically mounting a solar controller can be achieved.

Description

technical field [0001] The invention relates to a protection circuit, more specifically, to a protection circuit for preventing misoperation of a solar controller and a solar power generation system using the protection circuit. Background technique [0002] Solar energy is distributed all over the world and is one of the cleanest energy sources. Therefore, solar power generation has always been a hot spot in energy research. In recent years, the low-carbon and green environmental protection movement led by the United States and other countries has developed solar power more rapidly than before. [0003] Solar power generation consists of four parts: solar panels, batteries, charge and discharge controllers and loads. The functions of the charge and discharge controller are: (1) charge the electricity of the solar panel into the battery according to the charging method of the battery; (2) manage the electricity of the battery; (3) protect the solar power generation system. ...

AI Technical Summary

Problems solved by technology

In short, it is difficult to do a fool-like installation, and it is necessary to rely on the experience and technical discipline of the construction personnel to ensure the safety of the system installation

Obviously, failure to achieve fool-style installation requires professional training for construction personnel, which is not conducive to engineering construction

In particular, some workers are not well-educated, and once mishandled, the controller or other components will be damaged

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