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Anti-interference electricity system of self-matching alternating current contactor

An AC contactor and anti-sway technology, which is applied to circuits, relays, electrical components, etc., can solve problems such as complex calculations and high CPU requirements, and achieve the effects of simple calculations, improved efficiency, and improved system performance

Pending Publication Date: 2022-02-01
JIANGYIN ACREL ELECTRICAL APPLIANCE MFGCO +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing AC contactor anti-sway system usually has the following defects: 1. Most anti-sway systems first obtain the parameters of the AC contactor, generally the coil resistance of the contactor
[0005] The above-mentioned patent uses bidirectional thyristors to realize the main loop control opening and closing, but it uses the self-detection function to make the anti-shaking device work stably, which requires complex calculations, which requires high CPU

Method used

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  • Anti-interference electricity system of self-matching alternating current contactor
  • Anti-interference electricity system of self-matching alternating current contactor
  • Anti-interference electricity system of self-matching alternating current contactor

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Embodiment Construction

[0035] The present invention is described below in conjunction with accompanying drawing and specific embodiment:

[0036] Such as Figure 1~10 As shown, a self-matching AC contactor anti-shaking system includes a central control unit, a voltage isolation conversion measurement unit, an AC-to-DC power supply unit, a half-bridge AC-DC conversion unit, a supercapacitor charging and discharging unit, a voltage conversion unit, PWM isolated output voltage unit, contactor voltage isolated conversion unit, first relay, second relay, storage unit and digital input and output unit;

[0037] Both the first relay and the second relay are connected to the central control unit, the first relay includes a first control node J1-1 and a second control node J1-2; the second relay includes a third control node J2- 1 and the fourth control node J2-2;

[0038]The live wire is directly connected to the input end of the first control node J1-1 loop of the first relay. When the first relay is at ...

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PUM

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Abstract

The invention relates to an anti-interference electricity system of a self-matching alternating current contactor, and belongs to the technical field of power electronics. The system comprises a central control unit, a voltage isolation conversion measurement unit, an AC-to-DC power supply unit, a half-bridge AC-to-DC conversion unit, a super capacitor charging and discharging unit, a voltage conversion unit, a PWM isolation output voltage unit, a contactor voltage isolation conversion unit, a first relay, a second relay, a storage unit and an input and output unit. The system is reasonable in structure, can automatically calculate the voltage which should be output when the contactor dazzles electricity, is simple in calculation, can reduce the requirement for a CPU, and improves the efficiency.

Description

technical field [0001] The invention relates to an anti-shaking system of a self-matching AC contactor, which belongs to the technical field of power electronics. Background technique [0002] In the prior art, AC contactors are widely used in industrial sites for frequent operations and remote control, and are one of the important components in automatic control systems. The working principle of the AC contactor is mainly to use the control circuit to energize, the electromagnetic coil generates electromagnetic attraction, and closes the main circuit. But once the voltage shakes, it will cause the AC contactor to release, which will affect the operation of the equipment. Therefore, in order to ensure the reliable operation of the equipment, a system is needed to make the AC contactor have the ability to resist shaking electricity. [0003] The existing AC contactor anti-sway system usually has the following defects: 1. Most anti-sway systems first obtain the parameters of...

Claims

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Application Information

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IPC IPC(8): H01H47/00H01H51/00
CPCH01H47/001H01H47/002H01H51/00
Inventor 李海全宗寿松承哲金晓辉陈侃汤伟杜海云刘彦楠
Owner JIANGYIN ACREL ELECTRICAL APPLIANCE MFGCO
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