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A contactor action control method and system applied to UPS and UPS

A motion control and contactor technology, applied in relays, emergency power arrangements, electrical components, etc., can solve problems such as poor reliability, misoperation of contactors, single control mode, etc., and achieve the effect of improving control reliability and safety

Active Publication Date: 2021-10-08
ZHANGZHOU KEHUA TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method has the problem of a single control method. Once the control amount is abnormal, it will cause the contactor to malfunction, and the reliability is poor.

Method used

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  • A contactor action control method and system applied to UPS and UPS
  • A contactor action control method and system applied to UPS and UPS

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Embodiment Construction

[0045] The core of the present invention is to provide a contactor action control method, system and UPS applied to UPS. This application uses dual control methods for contactor power supply and controllable switch to control the contactor. False triggering will not cause the contactor to be closed by mistake, which improves the control reliability and safety.

[0046] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the ...

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Abstract

The invention discloses a contactor action control method, system and UPS applied to UPS, including determining the target working state of the uninterruptible power supply UPS; correspondingly controlling the opening or closing of the controllable switch according to the target working state of the UPS; Control the power output of the contactor power supply accordingly to make the UPS enter the target working state. It can be seen that this application adopts the dual control method of the contactor power supply and the controllable switch to control the contactor, and any false triggering of any of the control variables will not cause the contactor to be closed by mistake, which improves the control reliability and safety. sex.

Description

technical field [0001] The present invention relates to the technical field of UPS, in particular to a contactor action control method and system applied to UPS and UPS. Background technique [0002] With the development of information technology, in the production and work of industries such as banking, securities, telecommunications, data centers, transportation and medical treatment, any power outage accident may cause irreparable losses to the country, enterprises and even individuals. Based on this, UPS (Uninterruptible Power System, uninterruptible power supply) has been applied more and more. [0003] The UPS includes a main power circuit and a bypass, and the switch that controls the on-off of the main power circuit usually uses a contactor. Since the DC bus in the UPS often uses a large capacitor to ensure the dynamic output performance, if the contactor is mistakenly closed when the UPS is turned on, the large capacitor will bring a huge current, which will cause ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J9/06H01H47/00
CPCH01H47/002H02J9/06
Inventor 吴庆彬罗春李吕浩
Owner ZHANGZHOU KEHUA TECH CO LTD