Long-pulse high-voltage power supply based on capacitor energy storage power supply module and control method

Abstract

The invention discloses a long-pulse high-voltage power supply based on a capacitor energy storage power supply module and a control method, relates to the technical field of power electronics, and solves the problem that RC discharge waveform in a traditional energy storage type high-voltage power supply cannot meet the long-pulse flat-topped requirement required by devices such as gyrotron and the like. According to the technical scheme, the power supply comprises a power supply switch, a high-voltage isolation transformer, a charging isolation transformer and a diode rectifier which are connected in sequence, wherein the diode rectifier is connected with a discharging control circuit; the diode rectifier, the current-limiting resistor and the energy storage capacitor are sequentially connected in series to form a charging loop; the diode rectifier is provided with a compensation unit in parallel; the IGBT transistor and the fly-wheel diode are connected in series and then connectedwith the energy storage capacitor in parallel to form a discharge loop; and opening, closing, compensation and discharging effects of the capacitance energy storage module all respond to output signals of the discharging control circuit. The flat-topped time of the output voltage can be flexibly adjusted, the defect of short RC discharge flat-topped time is overcome, and the flat-topped dischargetime of the high-voltage power supply is remarkably prolonged.

Description

technical field [0001] The invention relates to the technical field of power electronics, more specifically, it relates to a long-pulse high-voltage power supply based on a capacitor energy storage power supply module and a control method. Background technique [0002] Most of the existing high-power high-voltage power supplies are directly powered by the grid, which has high requirements on the grid side, and the fluctuation and distortion caused by the grid side will have a negative impact on the output of the high-voltage power supply. The traditional energy storage high-voltage power supply uses capacitor banks to charge in parallel, and then discharge in series to obtain high-current pulse high voltage. The RC discharge waveform cannot meet the long-pulse flat-top requirements required by devices such as gyrotrons. Therefore, how to study and design a long-pulse high-voltage power supply and control method based on a capacitor energy storage power supply module is a pro...

AI Technical Summary

Problems solved by technology

[0002] Most of the existing high-power high-voltage power supplies are directly powered by the grid, and the requirements for the grid side are very high. The fluctuation and distortion caused by the grid side will have a negative impact on the output of the high-voltage power supply.

The traditional energy storage high-voltage power supply uses capacitor banks to charge in parallel, and then discharge in series to obtain high-current pulse high voltage. The RC discharge waveform cannot meet the long-pulse flat-top requirements required by devices such as gyrotrons.

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