High-frequency converter applied to PSM high-voltage power supply and PSM high-voltage power supply

A high-voltage power supply and high-frequency conversion technology, which is used in high-efficiency power electronic conversion, output power conversion devices, conversion of AC power input to DC power output, etc., to achieve the effects of improving stability, improving power grid quality, and simple winding process

Active Publication Date: 2021-03-19
SOUTHWESTERN INST OF PHYSICS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the technical problems existing in the existing low-voltage side converter, the present invention provides a high-frequency converter applied to PSM high-voltage power supply

Method used

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  • High-frequency converter applied to PSM high-voltage power supply and PSM high-voltage power supply
  • High-frequency converter applied to PSM high-voltage power supply and PSM high-voltage power supply

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Effect test

Embodiment 1

[0044] Compared with the pre-stage energy supply of the existing PSM high-voltage power supply, which mainly adopts a topology structure composed of a low-frequency three-phase power-frequency full-wave rectifier circuit and a low-frequency three-phase multi-winding transformer, it has the advantages of heavy weight, large volume, and poor control accuracy. Low, large output ripples and other issues, this embodiment proposes a high-frequency converter that can be modularized and applied to PSM high-voltage power supplies, and is constructed using high-frequency inverter technology, specifically as figure 1 As shown, the high-frequency converter of this embodiment is mainly composed of a three-phase EMI filter circuit 1 , a controllable rectification circuit 2 , a soft-switching inverter circuit 3 , and a DSP and ARM control circuit 8 .

[0045] Among them, the three-phase EMI filter circuit 1 is used to denoise the three-phase alternating current, and input the processed three-...

Embodiment 2

[0055] Based on a plurality of high-frequency converters proposed in Embodiment 1 above, a modular architecture with an average power of hundreds of kilowatts can be jointly realized, and the pre-stage energy supply of the PSM high-voltage power supply can be jointly provided.

[0056] Specific as figure 2 As shown, the present embodiment proposes a PSM high-voltage power supply, including n high-frequency converters proposed in the above-mentioned embodiment 1, n high-voltage high-frequency transformers 4 and n PSM module groups; wherein, the value of n is based on the output The level of voltage is determined by dividing 5~6kV into a module group (in this embodiment, the value of n is determined by dividing the highest output voltage of the PSM high-voltage power supply by (5~6kV), and n is a positive integer); .

[0057] Each PSM module group includes a plurality of PSM modules 5, and the output terminals of the plurality of PSM modules 5 are connected in series to realiz...

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Abstract

The invention discloses a high-frequency converter applied to a PSM high-voltage power supply and the PSM high-voltage power supply. A main circuit of the PSM high-voltage power supply is composed ofa modular high-frequency converter, a high-voltage high-frequency transformer and a PSM module group. The high-frequency converter is composed of a three-phase EMI filter circuit, a controllable rectification circuit, a soft switching inverter circuit and a control circuit. A hundreds of kilowatt average power architecture is realized through a plurality of high-frequency converters, and preceding-stage energy supply is provided for a PSM high-voltage power supply. The high-frequency converter has the advantages of being small in size, modularized, low in cost, stable in performance, easy to manufacture, convenient to maintain and the like. And the plurality of high-voltage high-frequency transformers realize insulation isolation of different potentials. And the plurality of PSM module groups realize high-voltage output through potential superposition.

Description

technical field [0001] The invention belongs to the technical field of PSM high-voltage power supply, and in particular relates to a high-frequency converter module applied to pulse step modulation PSM (PulseStep Modulation) high-voltage power supply. The circuit constitutes the PSM high voltage power supply. Background technique [0002] PSM technology uses pulse step modulation to output output parameters with a peak voltage of nearly 100 kV, a peak current of nearly 100 amperes, and an average power of hundreds of kilowatts. Because of its fast dynamic response and high reliability, it is widely used in plasma-assisted heating field. Taking electron cyclotron resonance, which is a common auxiliary heating method, as an example, the use of PSM technology has the advantages of high efficiency, high output voltage accuracy, and fast protection compared with high-voltage thyristor voltage regulation technology and high-voltage quadrupole technology. PSM high-voltage power s...

Claims

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Application Information

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IPC IPC(8): H02M7/217H02M7/483H02M7/5387H02M1/44
CPCH02M1/44H02M7/217H02M7/483H02M7/53871Y02B70/10
Inventor 贺岩斌姜亚南陈常熊涛魏于苹蒲世豪
Owner SOUTHWESTERN INST OF PHYSICS
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