Serial thyristor driver suitable for high-voltage and high-power pulse discharge
A technology of thyristor driver and pulse discharge, which is applied in the direction of pulse technology, electrical components, electronic switches, etc., can solve the problems of slow turn-on speed of turning diodes and failure to meet the requirements of thyristor overvoltage protection, etc., and achieve excellent trigger synchronization and high reliability Effects on sex and stability
Pending Publication Date: 2018-03-23
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology
However, when applied to high-voltage capacitor pulse discharge occasions with high current change rates, the turn-on speed of the transition diode is relatively slow, which cannot meet the requirements of thyristor overvoltage protection.
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[0027] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.
[0028] figure 1 A schematic diagram of the principle of the series thyristor pulse discharge switch according to the patent of the present invention is shown. The series thyristor driver consists of 1 pulse module, multiple thyristor driver modules and a high-voltage cable, where the number of thyristor driver modules is the same as the number of thyristors connected in series. After receiving...
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The present invention discloses a serial thyristor driver suitable for high-voltage and high-power pulse discharge. The driver comprises a high-voltage cable, a pulse module and driving modules. The high-voltage cable passes through each driving module to form a loop, and two ends of the high-voltage cable are connected with the pulse module. The pulse module obtains thyristor driving signals through optical signals or electric signals. Transmission of the thyristor driving signals and transmission of driving energy are achieved by employing high-frequency mutual inductors, primary sides of the mutual inductors are the same high-voltage cable, the secondary side winding structures of the mutual inductors have the same size, and driving currents with a high rate of change which meet the driving requirements of thyristors are transmitted to achieve synchronization triggering of the serial thyristors and satisfy voltage isolation requirements between the thyristors. The serial thyristor driver suitable for high-voltage and high-power pulse discharge can arrange auxiliary windings and high-order energy-taking circuits on the driving modules to achieve stand-by drive and protection functions of the thyristors. The serial thyristor driver suitable for high-voltage and high-power pulse discharge has excellent triggering synchronism and safety in pulse discharge application occasions and has high reliability and stability.
Description
technical field [0001] The patent of the present invention relates to a thyristor driver, more specifically, to a series thyristor driver for pulse discharge of high-voltage capacitors. Background technique [0002] High voltage capacitors require the use of series thyristors as pulse discharge switches. This application has the characteristics of high voltage and large current change rate, and has high requirements for the drive technology of series thyristors and corresponding protection measures. [0003] At present, the driving technology of thyristor is mainly divided into pulse transformer driving and photoelectric conversion driving, and the protection technology mainly adopts the method of parallel connection of turning diodes. A thyristor pulse transformer trigger module is disclosed in Chinese utility model patent specification CN201520988165, which uses a pulse transformer to transmit a thyristor drive signal, and realizes high and low potential isolation through...
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IPC IPC(8): H03K17/72
CPCH03K17/72H03K2217/0081
Inventor 周俊丁洪发
Owner HUAZHONG UNIV OF SCI & TECH