Bridge superconducting current limitter control system based on DSP

A superconducting current limiter and control system technology, which is applied in the field of DSP-based bridge superconducting current limiter control system, can solve the problem that the control speed is difficult to meet high-power circuits, modern industrial performance requirements, and trigger pulse requirements. Advanced problems, to achieve the effect of being suitable for automatic reclosing, reducing the probability of large-scale power outages, and improving stability and reliability

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

[0002] Bridge-type superconducting current limiter (also known as bridge-type superconducting fault current limiter) is usually composed of high-power power electronic devices such as GTO or IGBT plus superconducting inductors. Its control circuit is mostly composed of single-chip microcomputers, and most of the control devices exist The hardware circuit is complicated, debugging is difficult, the anti-interference ability is poor, and there are shortcomings such as temperature drift
Because high...

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  • Bridge superconducting current limitter control system based on DSP
  • Bridge superconducting current limitter control system based on DSP
  • Bridge superconducting current limitter control system based on DSP

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Embodiment

[0020] Embodiment: a kind of bridge type superconducting fault current limiter control system based on DSP (see figure 1 ), characterized in that it uses the high-performance DSP chip TMS320F2812 released by Texas Instruments as the central processor, and the whole device is composed of a signal shaping transformation processing circuit, a central data processing circuit, a power drive tube circuit and a superconducting current limiter that can turn off the thyristor The input end of said signal shaping conversion processing circuit is connected to external voltage transformer and current transformer, and its output end is connected to the input end of central data processing circuit, and the output ends of central data processing circuit including photoelectric isolation circuit are respectively The power drive tube circuit is connected, and the output terminal of the power drive tube circuit is connected with a superconducting current limiter to turn off each GTO gate input t...

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Abstract

The invention relates to a control system of the bridge type superconducting current limiter bases on the DSP. It treats the circuit through the signal reshaping transformation to collect the electrical signals, send the signal to the power driving tube circuit after being treated by the central data processing circuit, then control the gate-controlled switch element circuit of the bridge type superconducting current limiter and reach the aim to controll the system. The advantages and the technological effects of the invention lie in the following aspects: adopting the DSP to form the control system, simple hardware circuit, highly precise real time control, increased stability and reliability of the system. Appling the DSP to the bridge type superconducting current limiter and carrying out the closed loop control to the electronic switch composed of the GTO and other parts can reduce the loss caused by the short circuit of the electric power.

Description

(1) Technical field: [0001] The invention belongs to the technical field of control of a bridge-type superconducting current limiter (SFCL) in a power system, and is a control system of a bridge-type superconducting current limiter based on DSP. (two) background technology: [0002] Bridge-type superconducting current limiter (also known as bridge-type superconducting fault current limiter) is usually composed of high-power power electronic devices such as GTO or IGBT plus superconducting inductors. Its control circuit is mostly composed of single-chip microcomputers, and most of the control devices exist The hardware circuit is complicated, debugging is difficult, the anti-interference ability is poor, and there are disadvantages such as temperature drift. Because high-power circuits have high requirements for trigger pulses, it is difficult for traditional control devices to meet the requirements of modern high-power circuits in terms of control accuracy and control speed....

Claims

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Application Information

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IPC IPC(8): H02H3/08H02H9/02
CPCY02E40/69Y02E40/60
Inventor 马幼捷周雪松向龙瑞何彦民徐晓宁
Owner TIANJIN UNIVERSITY OF TECHNOLOGY
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