Valve-base electronic (VBE) device capable of automatically switching on and off high-voltage solid-state complex switch

A valve-based electronic and composite switch technology, applied in circuit devices, electrical components, information technology support systems, etc., can solve the problems of inability to manually operate VBE devices, complex structure and function, difficult fault location, etc. Simple structure and less external wiring

Active Publication Date: 2012-07-25
CHINA EPRI SCIENCE & TECHNOLOGY CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its main disadvantages are: VBE device has many boards, complex structure and functions, and the output signal is transmitted between multiple boards. Once a fault occurs, it is difficult to locate the fault
In the UAV interaction link, people cannot directly operate the VBE device manually

Method used

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  • Valve-base electronic (VBE) device capable of automatically switching on and off high-voltage solid-state complex switch
  • Valve-base electronic (VBE) device capable of automatically switching on and off high-voltage solid-state complex switch
  • Valve-base electronic (VBE) device capable of automatically switching on and off high-voltage solid-state complex switch

Examples

Experimental program
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Embodiment Construction

[0022] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0023] Such as figure 1 As shown, it is a schematic diagram of the control principle according to the valve-based electronic device of the present invention. The VBE device adopts a power supply board powered by DC 220V, and the core part triggers the logic board. Isolation and CPLD connection), 8-way relay passive node output, and LED digital tube display drive circuit is set at the same time, driving a total of 30 digital tubes. The trigger board adopts photoelectric output, which converts the trigger signal into a reliable optical signal through optical fiber and outputs it to the trigger mechanism of the thyristor, ensuring that the trigger signal is accurately transmitted to the thyristor trigger mechanism in the case of interference from power electronic devices; return The board still uses the optical signal returned by the thyristor return me...

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PUM

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Abstract

The invention relates to a box of a valve-base electronic (VBE) device which is capable of automatically switching on and off a solid-state complex switch. The VBE device needs to be externally connected with both a secondary 100V AC synchronous signal for a three-phase voltage transformer and a control system for a 220V DC power. After an operating switch spanner is operated to enable the VBE device to operate automatically, the VBE device can automatically switch on and off a parallel capacitor set when the system needs to supplement or switch off the capacitive reactive power. After the operating switch spanner is operated to enable the VBE device to be operated manually, the solid-state complex switch can be switched on and off simultaneously without arcing by using a switching on andoff spanner and an integrated automation system in the station.

Description

technical field [0001] The invention relates to a control device applied to an electric power system, in particular to a valve-based electronic (VBE) device for automatically or manually switching a contactor under the condition of no arc. Background technique [0002] At present, the thyristor valve-based electronics (VBE) device commonly used in power electronic equipment is mainly composed of a power supply board, a trigger logic board, a synchronous phase board, a trigger optical interface board, a valve monitoring board, a light receiving board and a return board, such as a Chinese patent application : CN200510102659.9 describes a static var compensator monitoring platform with hierarchical distributed connection structure, including three levels of bottom layer, middle layer and upper layer, in which communication management machine, SVC branch microcomputer protection unit, auxiliary protection unit, water cooling The system monitoring and valve-based electronic equip...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/18H02J13/00
CPCY04S40/124Y02E60/7838Y04S10/22Y02E40/30Y02E40/74Y02E40/70Y02E60/00
Inventor 李鹏李卫国马海超刘宏李志友赵刚
Owner CHINA EPRI SCIENCE & TECHNOLOGY CO LTD
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