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Trigger impulse control system of bridge superconducting current limitter

A technology of superconducting current limiter and control system, which is applied in the field of bridge type superconducting current limiter trigger pulse control system, can solve the problems of only focusing on data processing ability, difficulty in meeting performance requirements, ignoring data acquisition speed, etc., and achieve reduction The probability of large-scale blackout accidents, the effect of being suitable for automatic reclosing, improving the speed of data collection and processing accuracy

Inactive Publication Date: 2005-03-23
TIANJIN UNIVERSITY OF TECHNOLOGY
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Problems solved by technology

There have been a variety of pulse control technologies in the past, but these technologies either only focus on data processing capabilities and ignore data acquisition speed, or increase data acquisition speed but reduce data processing capabilities; in addition, there is litt

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  • Trigger impulse control system of bridge superconducting current limitter
  • Trigger impulse control system of bridge superconducting current limitter
  • Trigger impulse control system of bridge superconducting current limitter

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Embodiment 1

[0022] Embodiment 1: a kind of bridge type superconducting current limiter trigger pulse control system (see figure 1 ), it is characterized in that it is the central processor with the latest technology product of Netherlands PHILIPS company--8 single-chip microcomputer 80C552, and the whole system is made up of AC sampling circuit, central processing circuit and pulse processing circuit; the input of said AC sampling circuit connected to the external voltage transformer and current transformer, the output of which is connected to the input of the central data processing circuit, the output of the central processing circuit is respectively connected to the pulse amplifying part of the pulse processing circuit, and the output of the pulse amplifying circuit is connected to the power drive circuit, the power The output end of the drive circuit is connected to the gate input ends of each insulated gate bipolar thyristor of the bridge superconducting current limiter.

[0023] The...

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Abstract

The invention is a trigger pulse control system of the bridge type superconducting current limiter. It reshapes and transforms the collecting signal of the voltage and the current, send it to the impulse treating circuit after being treated by the central data processing circuit and reach the aim of controlling the trigger pulse needed by the insulated gate ambipolar thyristor element circuit. The advantages and the technological effects of the invention lie in the following aspects: making use of the monolithic processor chip with high handling capacity to control the trigger pulse of the bridge type superconducting current limiter increases the speed and the treating precision of the data collecting greatly, makes the whole control system posses pretty good adjusting property and reliability, increases the stability of the electric power, guarantees the protection when there is something wrong with the power transmission line better and decreases the probability of large-scale power failure.

Description

(1) Technical field: [0001] The invention belongs to the technical field of control of a bridge-type superconducting current limiter in a power system, in particular to a trigger pulse control system of a bridge-type superconducting current limiter based on single-chip technology. (two) background technology: [0002] With the continuous expansion of the scale of the power system, when the line fails, whether the current limiting device can act quickly and effectively has become one of the technical hotspots concerned by relevant people. Weighing the characteristics of various current limiters, high-power power electronic switches and increased reactance current limiters are more popular. Take the bridge-type superconducting fault current limiter as an example: the so-called bridge-type superconducting fault current limiter (Also known as bridge superconducting fault current limiter) is usually composed of high-power power electronic devices such as GTO (turn-off thyristor) ...

Claims

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Application Information

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IPC IPC(8): H02H9/02
CPCY02E40/69Y02E40/60
Inventor 马幼捷周雪松徐晓宁向龙瑞
Owner TIANJIN UNIVERSITY OF TECHNOLOGY