High voltage power supply

Abstract

The invention discloses a high voltage power supply. The high voltage power supply comprises an isolation transformer bank, wherein the isolation transformer bank is used for realizing electric isolation and carrying out boosting treatment on electric supply voltage; a power supply module comprises a plurality of serially connected power supply units; each power supply unit is provided with a switch tube; each switch tube is used for controlling the output voltage of corresponding power supply unit; and the output voltages of the power supply units are converted between zero and a unit level by adjusting the switching states of the switch tubes. The output voltage of the high voltage power supply is the sum of the output voltages of all the power supply units, and required high voltage output can be generated by adjusting the quantity of the power supply units in conducting states. The power supply units are driven by adopting two stages of transformer banks, the structures of the transformer banks are simplified, the transformation ratios of the two stages of transformer banks are different, so that the power supply units are of different output voltages; therefore, when the high voltage power supply works, the switch tubes of the power supply units work in on-off states mainly, so that the switching frequency of the switch tubes and the complexity of control signals are reduced; and simultaneously, the electromagnetic interference is reduced, and high-precise output of the power supply is realized by using a simple control method.

Description

technical field [0001] The invention belongs to the field of high-voltage technology, and more specifically relates to a high-voltage power supply. Background technique [0002] Electron cyclotron resonance heating (Electron Cyclotron Resonance Heating, ECRH) system can be used for plasma heating. The main components of an ECRH system generally include wave source systems, superconducting magnets, transmission lines and antennas, water systems and control systems, etc. The wave source system is the core of the ECRH system, which consists of a gyrotron and a power supply system (cathode high-voltage power supply, anode high-voltage power supply). The generation of high-power microwaves for the gyrotron requires the synergy of the power system, and it is necessary to develop a DC high-voltage power supply for the gyrotron. There are the following three schemes for high-voltage power supply schemes applied in tens of kilovolts to hundreds of kilovolts. [0003] Solution 1: Th...

AI Technical Summary

Problems solved by technology

[0006] In view of the above defects or improvement needs of the prior art, the present invention provides a high-voltage power supply, which aims to solve the problem that the existing high-voltage power supply cannot take into account high voltage accuracy and Technical Problems of Simplifying Power Supply Control Signals

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