Novel monitoring and protecting system for test thyristor of converter valve module

A converter valve module and protection system technology, applied in emergency protection circuit devices, single semiconductor device testing, electrical components, etc. Clear design ideas and high reliability

Active Publication Date: 2011-04-27
CHINA ELECTRIC POWER RES INST +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

The thyristor valve triggering and detection system involved in this patent uses a computer and a control protection system to trigger, monitor and protect the t

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  • Novel monitoring and protecting system for test thyristor of converter valve module
  • Novel monitoring and protecting system for test thyristor of converter valve module
  • Novel monitoring and protecting system for test thyristor of converter valve module

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[0026] In order to make the content of the present invention more clearly understood, the specific embodiments thereof are now described.

[0027] Reference attachment figure 1 , A new type of converter valve module test thyristor monitoring and protection system, which is composed of three parts: control and protection system, valve-based electronic equipment (VBE), and thyristor electronic equipment (TE). There are three wire connections between TE and thyristor, which are the thyristor anode connection VT, the thyristor gate connection Gate, and the thyristor cathode connection VG. VT and VG are used to measure the voltage from the anode to the cathode of the thyristor, and the Gate is to send trigger pulses to the gate of the thyristor. There are two optical fiber connections between VBE and TE. One is for sending trigger pulses to TE, and the other is for receiving thyristor status information reported by TE. There are three data lines connected between VBE and the control ...

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Abstract

The invention relates to the field of power system devices, in particular to a novel monitoring and protecting system for a test thyristor of a converter valve module. The system provided by the invention comprises thyristor electronic equipment (TE), valve-based electronic equipment (VBE), a control protection system and the like. The control protection system computes the triggering angle of the thyristor according to the current operation condition of a converter valve and sends the triggering angle to the VBE, the VBE generates a triggering coded pulse and sends the triggering coded pulse to the TE, and the TE generates a triggering pulse and sends the triggering pulse to the thyristor, thereby triggering the thyristor. The TE generates a monitoring and protecting return pulse according to the state of the thyristor, the return pulse is transferred to the VBE through an optical fiber, the VBE gathers the uploaded state information, then the gathered information is uploaded to the control protection system through a CAN (Controller Area Network) bus, and the control protection system finishes the process of monitoring the state information of the valve module thyristor level. In the normal operation process of the converter valve, if the voltage received by the thyristor exceeds the tolerance capability of the thyristor, the thyristor can be damaged possibly, thus the protection technology of the thyristor is very important. The control protection system, the VBE and the TE finish the protection of the normal operation of the converter valve module.

Description

technical field [0001] The invention relates to the field of power system devices, in particular to a novel converter valve module test thyristor monitoring and protection system. Background technique [0002] The monitoring and protection system of the converter valve is the core of its connection with peripheral equipment and thyristors, and its basic principle is shown in the block diagram. By receiving the trigger angle signal from the valve control unit (VC), the trigger code pulse is generated by the valve base electronic equipment (VBE), and sent to the thyristor electronic equipment (TE). After receiving the trigger code pulse, TE generates a trigger signal and sends the signal Applied to the gate of the thyristor so that the thyristor triggers normally. At the same time, TE returns the relevant state information of the thyristor to VBE, and VBE analyzes and summarizes the signal, and then sends it back to VC, so as to achieve the purpose of monitoring the state inf...

Claims

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Application Information

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IPC IPC(8): H02H7/20G01R31/26
Inventor 魏晓光温家良陈龙龙张娟
Owner CHINA ELECTRIC POWER RES INST
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