Distributed type power supply grid-connected power distribution cabinet

Abstract

The invention discloses a distributed type power supply grid-connected power distribution cabinet. The power distribution cabinet comprises a cabinet body, a distributed type power supply access to power grid control device which is arranged inside the cabinet body, and a temperature and humidity adjusting device. The distributed type power supply access to power grid control device comprises a grid-connected inverter, a knife switch, a voltmeter, an ammeter, a line inlet side breaker, a surge protection device, an isolated island protection device, an intelligent gateway electric energy meter, and a line outlet side breaker which are successively arranged in a series connection and are accessed between a distributed type power supply and a commercial power grid; the temperature and humidity adjusting device comprises a temperature detection device, a humidity detection device, a controller, a cooling and dehumidification device and a power supply module. The temperature detection device and the humidity detection device are arranged inside the cabinet body and are connected with the controller. The controller is connected with the cooling and dehumidification device arranged on the cabinet body. The power supply module provides working power supply. By means of the power distribution cabinet, the safety problem of traditional distributed type power supply being incorporated in commercial power grid is solved, and effective cooling and dehumidification can be performed to power distribution cabinet interior so that the service life of power distribution cabinets can be prolonged.

Description

Technical field [0001] The invention relates to a power distribution cabinet, in particular to a distributed power grid-connected power distribution cabinet, belonging to the technical field of power distribution network safety. Background technique [0002] Today’s distributed power sources mainly refer to internal combustion engines (IC) using liquid or gas fuels, microturbines (Microturbines), various engineering fuel cells (FuelCell), solar power plants, and wind turbines. On-site or close to the power-consuming site to meet the needs of specific users, support the economic operation of the existing distribution network, or meet the requirements of both aspects. The proximity to users improves service reliability and power quality. The combination of technological development, public environmental policies and the expansion of the power market has made distributed power generation an important energy choice in the new century. [0003] Distributed power sources need to input ...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the deficiencies in the above-mentioned prior art, the purpose of the present invention is to provide a distributed power grid-connected power distribution cabinet, which can not only solve the problem that the distributed power is integrated into the mains grid without using a protection device, which seriously endangers personal safety and low-voltage Power grid operation safety issues, and can effectively cool and dehumidify the inside of the power distribution cabinet, prolonging the service life of the power distribution cabinet

Images