Method for detecting service life of bus capacitor and apparatus thereof

A technology of bus capacitance and life, which is applied in the electronic field, can solve problems such as inaccurate bus capacitance life, inconsistent bus capacitance life, and inability to obtain capacitor life in time

Active Publication Date: 2017-04-19
HUAWEI DIGITAL POWER TECH CO LTD +1
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  • Abstract
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  • Application Information

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Problems solved by technology

This method can only be tested during abnormal working hours of the product, and the capacitor life cannot be obtained in time
Moreover, the failure of the capacitor is not entirely due to the change of the capacitance value. Therefore, the life of the bus capacitor obtained by the calculation method of the capacitance value of the bus capacitor is also inconsistent with the actual situation.
[0006] It can be seen that the two existing methods for obtaining the life of bus capacitors are not accurate enough to provide an effective reference for equipment maintenance and replacement of capacitors

Method used

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  • Method for detecting service life of bus capacitor and apparatus thereof
  • Method for detecting service life of bus capacitor and apparatus thereof
  • Method for detecting service life of bus capacitor and apparatus thereof

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Embodiment Construction

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

[0036] It should be noted that, in order to clearly describe the technical solutions of the embodiments of the present application, in the embodiments of the present application, words such as "first" and "second" are used for the same or similar items with basically the same function and effect To make a distinction, those skilled in the art can understand that words such as "first" and "second" do not limit the quantity and execution order.

[0037] The basic principle of the present inve...

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Abstract

An embodiment of the invention provides a method for detecting a service life of a bus capacitor and an apparatus thereof and relates to the electronic technology field. Accuracy of estimating a residual life of the bus capacitor can be increased and an accurate and effective reference can be provided for equipment maintenance and capacitor replacement. The scheme comprises the following steps of collecting a condition parameter of the bus capacitor at a current moment; according to the condition parameter of the current moment and a preset corresponding relation, acquiring a total service life of the bus capacitor under the condition parameter of the current moment; and calculating a residual life value of the bus capacitor at the current moment under a standard condition. The method and the apparatus are used for detecting the service life of the bus capacitor.

Description

technical field [0001] The present application relates to the field of electronic technology, in particular to a method and device for detecting the life span of a bus capacitor. Background technique [0002] In switching power supply equipment, the bus capacitor is a vulnerable part, and the failure of the bus capacitor will lead to major accidents in the power system. Therefore, knowing the service life of the bus capacitor accurately and maintaining and replacing it in time can avoid losses as much as possible. [0003] At present, the switching power supply sold in the market, taking the uninterruptible power system (full name in English: uninterruptable Power System, UPS) product as an example, the life of the bus capacitor is usually obtained by the countdown method and the capacitance value calculation method of the bus capacitor. [0004] The bus capacitor life countdown method is to test the bus capacitor under the worst working condition of the product to get the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00
CPCG01R31/00
Inventor 张春涛蔡雄兵崔兆雪
Owner HUAWEI DIGITAL POWER TECH CO LTD
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