Power-type emergency power supply with automatic main/standby motor switching function and operating method

An automatic conversion, emergency power supply technology, applied in electrical components, electronic switches, pulse technology and other directions, can solve problems such as motor interruption, achieve system optimization, avoid economic losses, and ensure power supply continuity.

Inactive Publication Date: 2014-01-29
合肥联信电源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] 1) When the mains power supply and the emergency source are switched, there is a phenomenon that the motor is interrupted
[0009] 2) Only one motor can provide emergency power supply

Method used

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  • Power-type emergency power supply with automatic main/standby motor switching function and operating method
  • Power-type emergency power supply with automatic main/standby motor switching function and operating method

Examples

Experimental program
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Embodiment Construction

[0029] In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with the accompanying drawings. As a preferred embodiment of the present invention, please refer to figure 2 , a dynamic emergency power supply with the function of automatic conversion of main and standby motors, including a frequency conversion unit, a charger, a battery pack, a switching contactor KM1, a switching contactor KM2, a load motor M1, a load motor M2, a rectifier unit, and an anti-reverse Diode D1, switching power supply, controller, current sensor ACI1 and current sensor ACI2.

[0030] The mains power is connected to the rectification unit, and the DC output terminal of the rectification unit is connected to the DC input terminal of the frequency conversion unit through a DC bus. The AC output terminals of the frequency conversion unit are respectively connected to the input terminals of the switching contactor KM1 a...

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PUM

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Abstract

The invention relates to the technical field of power-type emergency power supplies, in particular to a power-type emergency power supply with an automatic main/standby motor switching function and an operating method. The power-type emergency power supply with the automatic main/standby motor switching function comprises a frequency switching unit, a charger, a battery pack, a switch contactor KM1, a switch contactor KM2, a load motor M1, a load motor M2, a rectifying unit, an anti-inverse diode D1, a switching power supply, a controller, a current sensor ACI1 and a current sensor ACI2. By the power-type emergency power supply with the automatic main/standby motor switching function and the operating method, a motor can be uninterruptedly operated during switching of an emergency power supply and a mains supply, and the situation that the motor stops operating is avoided. When main-motor failure occurs, the standby motor can be automatically switched to operate, so that essential loads are greatly ensured to be uninterruptedly operated, and safe operation of production of the essential loads is guaranteed.

Description

[0001] technical field [0002] The invention relates to the technical field of power emergency power supply, in particular to a power emergency power supply with the function of automatic conversion of main and standby motors and its working method. Background technique [0003] In chemical industry, metallurgy and other industries, some primary loads such as circulating gas compressors maintain the operation of circulating cooling water or oil systems. If power failure occurs in the grid power supply system, causing circulating cooling water or oil systems to stop running, it will cause damage to the production process and cause Equipment and personal accidents, to avoid unnecessary economic losses. Therefore, in special occasions, it is necessary to ensure the continuity of power supply for primary loads and important loads, and power emergency power supplies to prevent damage to the production process caused by normal power interruptions. [0004] The working principle ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03K17/78
Inventor 李多山刘晖
Owner 合肥联信电源有限公司
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