A device and method for generating a flat-topped pulsed strong magnetic field for a terahertz gyrotron

A technology of flat-top pulse and strong magnetic field, which is applied to electric pulse generator circuits, energy storage elements to generate pulses, and output power conversion devices, etc. The application of Hertz gyrotron, the small proportion of flat top, etc., can reduce the flow time of the magnet, improve the comprehensive performance, and achieve the effect of high power density.
CN113258906BActive Publication Date: 2021-10-08HUAZHONG UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HUAZHONG UNIV OF SCI & TECH
Publication Date
2021-10-08

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Abstract

The invention provides a flat top pulse strong magnetic field generating device and method for a terahertz gyrotron, including: before discharging the magnet, charging and storing energy to the supercapacitor bank and the first high-voltage capacitor bank; when discharging the magnet, firstly controlling the first high voltage The capacitor bank discharges the magnet; when it is detected that the magnet current reaches the set value, the multi-phase interleaved parallel DC / DC converter starts to work, and the super capacitor bank discharges the magnet through the multi-phase interleaved parallel DC / DC converter, according to the first high voltage The terminal voltage of the capacitor bank and the magnet current are state-controlled, and the duty cycle of the PWM control signal of the multi-phase interleaved parallel DC / DC converter is changed to perform negative feedback control on the magnet current to offset the influence of the voltage drop of the supercapacitor bank and the increase of the internal resistance of the magnet , to stabilize the magnet current at the set value; when the set flat-top duration is reached or an abnormal situation occurs, the multi-phase interleaved parallel DC / DC converter is turned off. The invention improves the comprehensive performance of the flat-top pulsed magnetic field.
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Description

technical field

[0001] The invention belongs to the technical field of pulse power, and more specifically relates to a flat top pulse strong magnetic field generating device and method for a terahertz gyrotron. Background technique

[0002] Terahertz waves are electromagnetic waves with frequencies ranging from 0.1 THz to 10 THz. They have the characteristics of high frequency, large bandwidth, strong transmittance, high spectral resolution, and strong biocompatibility. . Terahertz source is the core foundation of terahertz technology. Among many terahertz source solutions, the gyrotron terahertz wave source based on pulsed strong magnetic field (hereinafter referred to as pulse field gyrotron) can generate terahertz waves with higher limit frequency and power. It is one of the very promising terahertz source schemes. However, limited by the waveform of the pulsed magnetic field, the radiation time of the existing pulsed field gyrotron is less than 0.5 ms, and its stabilit...

Claims

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