Chain SVG (Static Var Generator) module test system, platform and method

A technology of module testing and testing platform, applied in the direction of measuring electricity, measuring devices, measuring electrical variables, etc., can solve the problems of high test voltage and reactive power, and achieve the effect of stable voltage, simple circuit structure and low voltage level

Active Publication Date: 2017-01-04
XJ ELECTRIC +2
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  • Abstract
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Problems solved by technology

[0005] The purpose of the present invention is to provide a chained SVG module test system, platform, and method for solving the problems of high test voltage and exchanging a large amount of reactive power with the grid

Method used

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  • Chain SVG (Static Var Generator) module test system, platform and method
  • Chain SVG (Static Var Generator) module test system, platform and method
  • Chain SVG (Static Var Generator) module test system, platform and method

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Embodiment Construction

[0020] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0021] An embodiment of a chained SVG module testing system of the present invention, taking temperature rise testing as an example.

[0022] A kind of chain type SVG module temperature rise test system of the present invention comprises: temperature rise test device, test platform and two SVG modules, the SVG modules are all H-bridge structures, such as figure 1 The H1 module and the H2 module are shown, wherein the H1 module is the module to be tested, and the H2 is the accompanying module; the test platform includes a control circuit part and a main circuit part, and the main circuit part includes an isolation transformer, a DC line, and an AC line. The circuit part is connected to the H1 module and the H2 module to form a loop, that is, the DC sides of the H1 module and the H2 module are connected in parallel through a DC capacitor C. T...

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Abstract

The invention relates to a chain SVG (Static Var Generator) module test system, platform and method. The test system comprises the test platform and at least two SVG modules, wherein the test platform comprises a control circuit part and a main circuit part. The test system has a low voltage level, is easy to operate, and has small system loss; testing can be performed by twin trawling of two H bridges without simultaneous running of the H bridges of an entire chain SVG, and a large amount of reactive power is prevented from being exchanged with a power grid.

Description

technical field [0001] The invention relates to a chained SVG module testing system, platform and method, belonging to the technical field of power electronics testing. Background technique [0002] In recent years, with the development of AC and DC power transmission and distribution systems, the power system has higher and higher requirements for the stability of the voltage and frequency of the power grid, and reactive power compensation equipment has been more widely used in ensuring system stability. SVG (Static Var Generator, Static Var Generator) is an important parallel compensation device in the FACTS family, which plays a key role in enhancing voltage stability, improving power transmission efficiency and power quality. [0003] Along with the application of SVG, the chain H-bridge structure has also been used more and more. SVG is equivalent to a voltage-type inverter, because the chain-type SVG converts the DC side voltage into an output voltage with the same fr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/01
CPCG01R31/01
Inventor 孙健刘刚左广杰许恩泽高志军臧兴平
Owner XJ ELECTRIC
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