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Compound whole-working order testing device control and protection system, and failure protection scheme

A technology for controlling protection and testing devices, which is used in overload protection devices, single semiconductor device testing, etc. to achieve the effect of easy coordination, clear function division, and safe operation.

Active Publication Date: 2006-09-06
CHINA ELECTRIC POWER RES INST +1
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  • Description
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AI Technical Summary

Problems solved by technology

[0005] In order to solve the coordination, control and fault protection problems of each sub-equipment of the synthetic full working condition test device, the purpose of the present invention is to provide a control protection system and a fault protection scheme of the synthetic full working condition test device

Method used

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  • Compound whole-working order testing device control and protection system, and failure protection scheme

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Embodiment Construction

[0041] Attached below figure 1 The present invention is further described.

[0042] The circuit part of the synthetic full working condition test device mainly includes three parts: the low-voltage charging circuit, the synthetic full working condition test circuit and the low voltage high current source. The auxiliary equipment mainly includes two sets of water cooling devices, one set (No. The thyristor valve is used to supply water, and the other set (No. 2) is used to supply water to the test valve alone. Therefore, the underlying control and protection subsystem of the control and protection system of the synthetic full-working condition test device mainly includes the following five independent control and protection subsystems:

[0043] ●Charging circuit control and protection subsystem

[0044] ●Test circuit control and protection subsystem

[0045] ●Low-voltage and high-current source control and protection subsystem

[0046] ●No.1 water cooling device control and...

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Abstract

The system comprises: an upper layer control and protection system, a measurement system for the tester, an operation platform, a wave recorder, and a bottom control and protection subsystem, which comprises mainly: a control and protection subsystem for low-voltage charge loop, a control and protection subsystem for synthesis full-condition test circuit, a control and protection subsystem for low-voltage large-current power, a control and protection subsystem for the first water cooling device to supply water for a thyristor in tester, and a control and protection subsystem for the second water cooling device to supply water singly for the sample valve. According to different faults, it designs eight-level protection measures for the control and protection system, and sets nine-level PRI as fault seriousness.

Description

technical field [0001] The invention relates to the technology of performing operation test on a thyristor valve in a power system and a power electronic system, in particular to a control protection system and a fault protection scheme of a synthetic full-working-condition test device. Background technique [0002] With the gradual promotion of the application of power electronics technology in power systems, high-voltage valves based on thyristor series voltage equalization technology have become the core components of various high-power power electronic devices. For example, Static Var Compensator (SVC), Thyristor Controlled Series Compensator (TCSC), High Voltage Direct Current Transmission (HVDC), etc. The operation test is an important test method related to improving the design and manufacturing level of various high-voltage series thyristor valves and improving their reliability. At present, the synthesis test method is generally used in the world to carry out the o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/26G01R1/36
Inventor 邱宇峰温家良徐桂芝查鲲鹏
Owner CHINA ELECTRIC POWER RES INST
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