High-power high-frequency power supply system for high-potential electronic circuit and method of high-power high-frequency power supply system

Abstract

The invention relates to a high-power high-frequency power supply system for a high-potential electronic circuit and a method of the high-power high-frequency power supply system. The system comprises a high-frequency power supply, a high-frequency high-voltage transformer, a poured integrated high-frequency energy transmission CT (current transformer) and an impendence compensation link which are connected with one another in sequence, wherein the high-frequency power supply comprises a high-frequency current source and a high-frequency voltage source. The method comprises the steps of (1) connecting the high-frequency power supply to low-voltage direct current voltage or alternating current mains supply; and (2) converting the connected voltage into a high-frequency signal, and outputting the high-frequency signal to the high-frequency transformer. According to the system and the method which are disclosed by the invention, the dispersibility of distribution parameters is reduced, and electrical isolation of all trigger electronic circuits is realized; due to the high-frequency transformer, insulation between a low-potential part and a high-potential part of an energy transmission power supply system is realized; the energy transmission efficiency is optimized. The system and the method meet requirements on modularization and standardization of a product, are high in load adaptability and also meet a requirement on energy for continuously triggering a thyristor valve.

Description

technical field [0001] The invention belongs to electronic technology, and specifically relates to a high-potential electronic circuit high-power high-frequency power supply system and a method thereof. Background technique [0002] Compared with traditional adjustment methods, power electronic technology has obvious advantages in the flexible adjustment of electric energy, and it has been widely used in power systems. Thyristor valves and other power electronic devices are used as power changing parts, and the voltage level of their applications is getting higher and higher. The high-potential electronic circuits triggered by them are generally installed on the valve body and are at high potential to provide stable and reliable power. Supply is one of the key links to improve the overall stability of power electronic devices. [0003] There are two modes of power supply for high-potential electronic circuits: energy acquisition and energy delivery. The energy harvesting m...

AI Technical Summary

Problems solved by technology

[0007] 1) The high-voltage insulation problem between the ground power supply part of the high-frequency energy transmission system and the high-potential electronic circuit;

[0008] 2) Consistency of distribution parameters;

[0009] 3) The problem of load adaptability;

[0010] 4) The overall efficiency of the high-frequency power supply system

[0011] The current source method proposed in the patent CN101222183A only relies on the insulation of the cable itself to solve the insulation problem of the energy transmission power supply system, which is difficult to apply to 35kV voltage and above, and has the problem of poor consistency of distributed parameters

The voltage source method proposed in the patent CN201904717U uses the insulation of cables and transformers to solve the insulation problem of the energy transmission power supply system. It can be applied to 35kV voltage and above. However, due to uncertain factors in the layout and fixing of cables, its distribution parameters Difficult to control, making the overall performance of the power system less consistent

In addition, in the high-frequency energy transmission scheme proposed by the patent CN201904717U, the primary sides of all the current transformer monomers that provide energy to the trigger electronic circuit are connected in series. The number of series connection is different, and the parameters of the designed high-frequency transformer are also different. , which is not conducive to the modularization and standardization of products

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