10kV dual-power spare power automatic switching and smart energy management system device

Abstract

The invention relates to the technical field of electric power, in particular to a 10kV dual-power spare power automatic switching and smart energy management system device, which comprises a set of system consisting of an intelligent direct current device with multiple output voltage levels, a smart energy management system and a set of 10KV spare power automatic switching electrical and mechanical interlocking device, the intelligent direct-current device with multiple output voltage levels comprises a cabinet body, and a central monitoring module M, charging modules M1 and M2, an inverter NBQ, a direct-current converter BHQ, a battery pack BT and a lightning protection module SPD which are positioned in the cabinet body. According to the invention, the automation degree is high, the conversion of two inlet wires is safer and more reliable, the spare power automatic switching device is protected by the mechanical interlocking device, so that the use of the spare power automatic switching device is safer, the whole system works stably and reliably by the lightning protection module SPD and the insulation monitoring relay JJ, and the emergency demand of a field on an operation power supply can be met; and through a plurality of direct-current converters BHQ, the direct-current device can meet the requirements of voltage output of each grade.

Description

technical field [0001] The invention relates to the field of electric power technology, in particular to a 10kV dual-power backup automatic switching and intelligent energy management system device. Background technique [0002] Standby automatic switching is the abbreviation of the device for automatically putting into use the backup power supply of 10kv community or factory. Usually, the relay contactor and the standby automatic switching protection device are used as the basis for the standby automatic switching action. When the main power supply fails, the control trigger of the relay contactor control system The head is automatically closed, and the main power supply is automatically put into the backup power supply. [0003] Chinese Patent No. 201910518541.6 relates to a 10KV dual-power standby automatic switching device and method, which involves the field of power system technology, and solves the problem that although the existing high-voltage cabinets have realized...

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Problems solved by technology

[0003] Chinese Patent No. 201910518541.6 relates to a 10KV dual-power standby automatic switching device and method, which involves the field of power system technology, and solves the problem that although the existing high-voltage cabinets have realized dual power supply, the process of actually switching dual power supplies still passes It is more cumbersome to realize by manual operation, and it is easy to delay the normal use of the high-voltage cabinet when no one is on site. It includes: the main power supply device, which is installed in the high-voltage cabinet to realize power supply; Connected to the main power supply device to detect the power supply status of the main power supply device and output the first judgment signal; the backup power supply device is coupled to the first judgment device to receive the first judgment signal and respond to the first judgment signal to realize continuous power supply in high voltage cabinet

[0004] The current DC device only has one voltage level output, which cannot meet the needs of various voltage levels of the field equipment, and does not have the effect of mechanical interlocking. If the electrical malfunction occurs, it is very likely that the two incoming lines will be closed at the same time, resulting in a short circuit. Fire or even explosion, and when the DC device cabinet fails, the power bureau cannot accurately know the cause of the fault and the specific cabinet, so it is urgent to develop a 10kV dual power backup automatic switchover and smart energy management system device

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