Microgrid fault recognition device accessed to power system

Abstract

The invention relates to the technical field of fault identification devices, in particular to a microgrid fault recognition device accessed to a power system. The device comprises a box body; a firsttemperature sensor is arranged at the left side of the inner wall of the box body and close to the top; a second temperature sensor is arranged on the left side of the inner wall of the box body andclose to the bottom; a U-shaped mounting plate with a rightward opening is arranged in the middle of the right side of the inner wall of the box body; a semiconductor chilling plate is arranged on theside face of a vertical plate of the U-shaped mounting plate; a mounting box is arranged in the middle of the top of the box body; a lithium battery and a single-chip microcomputer are arranged in the mounting box; and an early warning lamp is arranged at the top of the box body and close to the left edge. According to the microgrid fault recognition device accessed to the power system, temperature in the box body can be detected through the first temperature sensor and the second temperature sensor, and a user can be reminded that the temperature in the box body is too high through the earlywarning lamp, so that work of a storage battery pack is stopped in time, and fault maintenance is carried out on the storage battery pack.

Description

technical field [0001] The invention relates to the technical field of fault identification devices, in particular to a micro-grid fault identification device connected to a power system. Background technique [0002] Microgrid, referred to as microgrid, is a concept relative to the traditional large power grid. It refers to a small power generation and distribution system composed of distributed power sources, energy storage devices, energy conversion devices, related loads, monitoring and protection devices, and can be connected with external The grid-connected operation can also be operated in isolation. The energy storage device mainly stores and releases electric energy through the battery. The battery will release a small amount of heat during charging and discharging. If the battery has a high temperature during use, it means that the battery When an abnormality occurs during charging or discharging, it is necessary to stop the work of the battery and overhaul the bat...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a micro-grid fault identification device connected to the power system to solve the problem that the existing storage battery does not have a temperature abnormality detection and identification device during use in the above-mentioned background technology, and there are large potential safety hazards

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