Bridge superconducting current limitter control system based on DSP

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....

AI Technical Summary

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-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.

With the rapid development of the power industry, the capacity and scale of power distribution systems are increasing day by day, and the requirements for control devices are also increasing. Traditional control devices have been difficult to meet the performance requirements of modern industries.

Images