Thyristor switched capacitor high voltage valve test device and method

A thyristor switching and testing device technology, which is applied in the field of measurement and testing, can solve the problems of TSC high-pressure valve operation test and over-current test, etc., and achieve the effects of reducing the test power supply capacity, saving investment, and flexible adjustment methods

Inactive Publication Date: 2008-02-20
CHINA ELECTRIC POWER RES INST +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Limited to the provision of test capacity, synthetic test methods are generally used to carry out operation tests and overcurrent tests of TSC valves. The basic idea is to use multiple sets of power systems to provide TSC valves with long-term operating current, fault overcurrent and high voltage strength.

Method used

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  • Thyristor switched capacitor high voltage valve test device and method
  • Thyristor switched capacitor high voltage valve test device and method

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Embodiment Construction

[0015] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0016] The topological structure principle of the thyristor switching capacitor high-voltage valve test device of the present invention is shown in Figure 1, wherein E1 is a high-current DC voltage source, E2 is a high-voltage DC voltage source, Vt is the TSC valve to be tested, and the Vt of the tested valve is composed of anti-parallel It consists of a forward valve Vt1 and a reverse valve Vt2, C1 is a large current oscillation capacitor, L1 is a large current oscillation reactor, C2 is a high voltage oscillation capacitor, L2 is a high voltage oscillation reactor; the high current oscillation capacitor C1 and The high-current oscillating reactor L1, the high-voltage oscillating capacitor C2 and the high-voltage oscillating reactor L2 constitute two relatively independent oscillating circuits. Vs1 is a high current power control val...

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Abstract

The utility model discloses a testing device of the high-pressure valve of a quartz brake tube slinging capacitor (TSC) as well as a method using the device to conduct TSC valve current test and operation test, which comprises two direct current voltage sources, six auxiliary valves and two relatively independent oscillating circuits composed of two capacitors and two reactors. The testing device realizes different working sequence and test methods by use of the triggering of a series of auxiliary valves, the tested valves are made to operate current and steady-state intensity for a long time under operation test mode and undergo transient state excess current, transient excess voltage and transient heat intensity under excess current test mode, which can both meet the requirements of TSC high voltage valve operation test and excess current test. The utility model adopts the cooperation of resonant circuit and the method of superimposing oscillating current to realize relatively large test current and the test intensity is distributed to two power supplies, which reduces the work intensity of the test device and enhances the safety and reliability.

Description

technical field [0001] The invention belongs to the technical field of measurement and testing, and relates to a thyristor switching capacitor (TSC) high-voltage valve test device, and also relates to a method for using the device to conduct a TSC valve overcurrent test and operation test. Background technique [0002] With the gradual popularization of flexible AC transmission technology in power systems, the reliability of its core component - high-power high-voltage series thyristor valves has become the key to system safety. Since flexible AC transmission devices generally have the characteristics of high voltage, large current, and large capacity, it is difficult to construct a full-load circuit with the same operating conditions as the actual operating conditions in the test environment for testing. Thyristor switched capacitor (TSC) device is an important flexible AC power transmission equipment, mainly used in reactive power compensation of power system, its core com...

Claims

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Application Information

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IPC IPC(8): G01R31/00G01R31/333
Inventor 汤广福温家良查鲲鹏贺之渊
Owner CHINA ELECTRIC POWER RES INST
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