Network intelligent multi-purpose emergency power supply

Abstract

The invention relates to a network intelligent multi-purpose emergency power supply (EPS) which comprises a three-phase supply detection circuit, a charge-discharge and control unit, a lithium battery pack, a temperature detection unit, a balancing and voltage detection unit, a main controller and an inverter. One path of the input end of a power grid is directly connected with the output end of an alternating current shunt circuit, one path of the input end of the power grid is connected with the lithium battery pack through the charge-discharge and control unit, and the other path of the input end of the power grid is connected with a contactor KM1 through the three-phase supply detection circuit. One path of the lithium battery pack is connected with the output end of the alternating current shunt circuit through the contactor KM1, a diode D1, the inverter and a contactor KM2 in sequence, and the other path of the lithium battery pack is directly connected with a direct current output end. The network intelligent multi-purpose EPS has the advantages that detection is achieved by means of a network intelligent data collector, all-digital modularization is achieved, a system is simplified, and intelligent performance and reliability are improved; frequency converting control is achieved through a frequency converter, the frequency converter can directly drive a motor load to achieve frequency control, and therefore the EPS can be used for driving a draught fan and a water pump.

Description

technical field [0001] The invention relates to an emergency power supply, in particular to a network intelligent multipurpose EPS emergency power supply. Background technique [0002] EPS (Emergencv Power Supply emergency power supply device) is an emergency power supply commonly used in engineering in recent years. In today's highly informatized world, it is a problem that needs to be solved to maximize the protection of important power loads and emergency power for fire-fighting equipment. For today's large-scale, high-performance intelligent buildings, the continuity and stability of the system power supply makes the technology of emergency power supply and backup power supply constantly innovative. The EPS system can still ensure the normal operation of the overall intelligent security system of large buildings in the case of unexpected failures (power supply interruption, emergency rescue) for intelligent large buildings, so it will be favored by more and more users. ...

AI Technical Summary

Problems solved by technology

[0004] At present, there are many types of EPS emergency power supplies, but most of them are analog detection and relay logic control. The equipment is complex and prone to solid failures, which cannot meet the needs.

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