Method, device and system capable of achieving automatic double-power-supply switching for eliminating continuous flashing

An automatic switching, dual power supply technology, applied in circuit devices, emergency power supply arrangements, electrical components, etc., can solve problems such as continuous flashing, production and life impact, and achieve the effect of avoiding continuous flashing and improving power supply stability.

Inactive Publication Date: 2013-03-06
STATE GRID CORP OF CHINA +1
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Problems solved by technology

[0005] The main purpose of the present invention is to provide a dual power supply automatic switching method, device and system that eliminates continuous flickering, to solve the problem of switching the load circuit from one power supply to another in the dual power supply system that is a backup for each other in the prior art. Continuous flickering occurs during the power supply process, which seriously affects the production and life of users

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  • Method, device and system capable of achieving automatic double-power-supply switching for eliminating continuous flashing
  • Method, device and system capable of achieving automatic double-power-supply switching for eliminating continuous flashing
  • Method, device and system capable of achieving automatic double-power-supply switching for eliminating continuous flashing

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Embodiment Construction

[0023] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0024] figure 1 It is a flow chart of the main steps of the dual-power automatic switching method for eliminating continuous flickering according to the embodiment of the present invention. figure 1 As shown, the method mainly includes the following steps:

[0025] Step S101: Receive a voltage detection signal of a power supply in a power supply state.

[0026] Step S103: Process and judge the received voltage detection signal.

[0027] Step S105: When the voltage value corresponding to the voltage detection signal is lower than the voltage loss threshold, output a voltage loss timing start control command.

[0028] In this step, the set loss voltage threshold is: 70% of the rated voltage o...

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Abstract

The invention provides a method, a device and a system capable of achieving automatic double-power-supply switching for eliminating continuous flashing, and the method, the device and the system are used for solving the problem that user production and life are influenced seriously due to continuous flashing when a load circuit is switched from one power supply to another power supply in a mutually standby double power supply system in the prior art. The method includes: receiving a voltage detection signal of a power supply in the power supplying state; processing and judging the voltage detection signal; outputting a voltage loss timing start control instruction when a voltage value corresponding to the voltage detection signal is lower than a voltage loss threshold value; receiving a timing to triggering signal; receiving a current voltage detection signal of the redetected power supply in the power supplying state; processing and judging the current voltage detection signal; and outputting a power supply switching control instruction when a voltage value corresponding to the current voltage detection signal is lower than the voltage loss threshold value. By the technical scheme, power supply stability of a system is improved beneficially.

Description

technical field [0001] The invention relates to the technical field of power supply, in particular to a dual power supply automatic switching method, device and system for eliminating continuous flickering. Background technique [0002] At present, ATS (Automatic transfer switching equipment, automatic transfer switching equipment) has been widely used in emergency power supply systems, mainly to automatically switch the load circuit from a faulty power supply to another non-faulty power supply to ensure Continuous and reliable operation. [0003] However, in the above-mentioned dual power supply system, the load circuit often flickers continuously during the process of switching from one power supply to the other, which seriously affects the production and life of users. [0004] In the prior art, in the mutual backup dual power supply system, the load circuit flickers continuously during the process of switching from one power supply to the other, which seriously affects ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J9/06
Inventor 周彤齐小伟郭大勇张树楷尹亚军郭慧张静
Owner STATE GRID CORP OF CHINA
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