Detection method and device for chain type SVG power module

A power module and detection device technology, which is applied in the direction of measurement devices, circuit devices, reactive power adjustment/elimination/compensation, etc., can solve the problems of inability to detect quickly and conveniently, and save equipment maintenance time, simple detection process, and energy-saving short-term effect

Active Publication Date: 2020-02-28
ZHENGZHOU SENYUAN NEW ENERGY TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a detection method and device for a chained SVG power module to solve the problem that the power module in the current chained SVG equipment cannot be detected quickly and conveniently on site

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  • Detection method and device for chain type SVG power module
  • Detection method and device for chain type SVG power module

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Embodiment Construction

[0023] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0024] Method example:

[0025] This embodiment provides a detection method for a chained SVG power module, which can realize rapid and convenient on-site detection of the power module in a chained SVG device, such as figure 1 As shown, the detection method includes the following steps:

[0026] 1) In the reference data acquisition mode: select any power module in the SVG as the reference power module, and collect its data as the reference data;

[0027] 2) In the detection mode: collect the data of other power modules other than the reference power module in SVG as the data to be compared;

[0028] If the number of power modules whose data to be compared is inconsistent with the reference data is less than the set value, it is judged th...

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Abstract

The invention provides a detection method and device for a chain SVG power module, and belongs to the technical field of power electronics. The method comprises the following steps: in a reference data acquisition mode, selecting any power module in the SVG as a reference power module, and acquiring data of the reference power module as reference data; in a detection mode, collecting data of otherpower modules except the reference power module in the SVG as data to be compared; if the number of the power modules of which the to-be-compared data is inconsistent with the reference data is lowerthan a set value, judging that the reference power modules are normal, and judging that the power module of which the to-be-compared data is consistent with the reference data are normal and the power data of which the to-be-compared data is inconsistent with the reference data has a fault; otherwise, judging that the reference power module has a fault, reselecting the other power module in the SVG as the reference power module in the reference data acquisition mode, acquiring the data of the reference power module as the reference data, and repeating the comparison process. According to theinvention, on-site rapid detection of the power module in the SVG can be realized.

Description

technical field [0001] The invention relates to a detection method and device for a chained SVG power module, belonging to the technical field of power electronics. Background technique [0002] At present, the chained static var generator (referred to as the chained SVG) has been widely used in new energy power generation and transmission and distribution systems. Due to the problem of IGBT and capacitor withstand voltage, each phase of the SVG equipment is composed of multiple power module stages If there is a problem with any power module, the equipment will not operate normally. In order to ensure the normal use of SVG equipment, it is necessary to test the SVG equipment before it is put into operation on site, when it fails and after maintenance. At present, professionals are required to use specific testing instruments to test the power modules in SVG equipment. The testing work is relatively complicated and cumbersome, and these testing instruments are not easy to ca...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): G01R31/00G01R31/26G01R27/02G01R27/26H02J3/18
CPCG01R31/00G01R31/2601G01R27/02G01R27/2605H02J3/1864Y02E40/10
Inventor张紫阳齐红柱杨金枝王伟名马丽娜陈科威
OwnerZHENGZHOU SENYUAN NEW ENERGY TECH