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Double-power-supply switching controller and control method

A dual power supply switching and control method technology, applied in emergency power supply arrangements, electrical components, circuit devices, etc., can solve the problems of difficult control of switching time, failure to achieve continuous power supply, etc., and achieve optimal control scheme, fast switching, and good stability Effect

Pending Publication Date: 2018-03-30
黑龙江博瑞特高新技术开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the currently used dual power supply switch can complete the dual power supply switching function, it is difficult to control the switching time within a power frequency power cycle (20mS), and it cannot achieve continuous power supply in the true sense.

Method used

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  • Double-power-supply switching controller and control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038]A dual power supply switching controller and a control method, the dual power supply switching controller: a chassis (1), the host circuit board (2) is installed in the chassis, and the host circuit board is respectively connected to the charging control circuit (3) The excitation control circuit (4) is electrically connected to the switching state monitoring circuit (5), and the charging control circuit is electrically connected to the excitation control circuit.

Embodiment 2

[0040] According to the dual power supply switching controller and control method described in Embodiment 1, the host circuit board includes a microcontroller circuit (7), and the microcontroller circuit is respectively connected with the signal conversion and acquisition circuit (6), human The computer interaction interface circuit (8), the charging control interface circuit (11), the excitation control interface circuit (12) and the switching state communication interface circuit (13) are electrically connected, and the signal conversion and data acquisition circuit is connected with a set of voltage conversion circuits (9) is electrically connected with a group of current conversion circuits (1).

Embodiment 3

[0042] According to the dual power supply switching controller and control method described in Embodiment 1, the charging control circuit mainly includes: two-way three-phase full-wave rectification circuit, energy storage capacitor C, current limiting resistor R, freewheeling diode D, charging Control the switch IGBT and manual switch K, etc., to realize the continuous charging of the energy storage capacitor C at the same time with the main and backup power sources.

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Abstract

The invention provides a double-power-supply switching controller and a control method. existing double-power-supply switching is only finished functionally, switching time is difficultly controlled in a power frequency supply period (20 mS), and thus, real continuous power supplying cannot be realized. The double-power-supply switching controller comprises a case (1), wherein a main machine circuit board (2) is mounted in the case and is electrically connected with a charging control circuit (3), an exciting control circuit (4) and a switching state monitoring circuit (5) separately, and thecharging control circuit is electrically connected with the exciting control circuit. The double-power-supply switching controller is used for automatic double-power-supply switching control on important users who have high requirements for power supply continuity and reliability.

Description

technical field [0001] The invention relates to an automatic switching device for main and backup dual power supplies, in particular to a dual power switching controller and a control method. Background technique [0002] With the continuous progress of social economy, science and technology, the demand for electricity in human production and life is getting higher and higher. Although it is divided into different power supply levels according to the importance of power users and the severity of losses caused by power outages, as far as the needs of power users themselves are concerned, they do not want the power supply to lose power. The use of dual power supply switching can ensure the continuity of power supply. When the main power supply fails or lacks power, the dual power supply switching device can realize automatic switching with the backup power supply. It is especially suitable for hospitals, airports, firefighting, military and other important places where power c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J9/06
CPCH02J9/061H02J9/068Y04S20/20Y02B70/30
Inventor 魏新劳陈满生牛滨庞书勇
Owner 黑龙江博瑞特高新技术开发有限公司
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