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High voltage power supply

A high-voltage power supply and power supply technology, which is applied in the direction of electrical components, output power conversion devices, and conversion equipment that can be converted to DC without intermediate conversion, can solve problems such as the inability to take into account high voltage accuracy and power control signal simplification, and achieve Reduced design requirements and construction costs, reduced complexity, and simple control effects

Inactive Publication Date: 2017-10-10
HUAZHONG UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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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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Embodiment Construction

[0029] 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.

[0030] The high-voltage power supply provided by the present invention includes an isolation transformer group, a power module and a control module. The isolation transformer is provided with N input terminals and M output terminals, wherein N and M are both positive integers, and the input terminals of the isolation transformer group are connected to the grid , used for electrical isolation and...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M7/12H02M5/12H02M7/217
CPCH02M5/12H02M7/12H02M7/217H02M1/0077
Inventor 夏冬辉崔芳泰刘昌海王之江余振雄马海燕金易坤孙道磊
Owner HUAZHONG UNIV OF SCI & TECH
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