A long-pulse high-voltage power supply based on a capacitor energy storage power supply module and its control method
A technology of capacitor energy storage and high-voltage power supply, which is applied in the direction of electric pulse generator circuit, energy storage element to generate pulses, etc., can solve the problems of the adverse effect of high-voltage power supply output, can not meet the requirements of long pulse flat top of gyrotron, and achieve flat top The effect of increased discharge time, simple structure, and reduced power consumption
Active Publication Date: 2021-08-24
SOUTHWESTERN INST OF PHYSICS
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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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[0039] EXAMPLES: A long pulse high voltage power supply based on a capacitor energy storage power module, such as Figure 1 As shown, including the power supply switch 1, the high pressure isolation transformer 2, the charge isolation transformer 3, the capacitor energy storage module, the capacitive energy storage module includes a diode rectifier 4, a current limiting resistor 5, an energy storage capacitor 6, a septic flow diode 7, an IGBT transistor 8 . The power supply switch 1 is connected to the single-phase AC AC, and the other end is connected to the high pressure isolation transformer 2, and the charge isolation transformer 3 is connected to the secondary side of the high pressure isolation transformer 2. One winding of the charge isolation transformer 3 is connected to the diode rectifier 4, and the other winding is connected to the power interface of the discharge control circuit. Diode rectifier 4, current limiting resistor 5, and the energy storage capacitor 6 constit...
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The invention discloses a long-pulse high-voltage power supply and a control method based on a capacitor energy storage power supply module, relates to the field of power electronics technology, and solves the problem that the RC discharge waveform in the traditional energy storage high-voltage power supply cannot meet the long pulse required by devices such as gyrotrons The key points of the technical solution for the problem of flat top requirements are: including the power supply switch, high-voltage isolation transformer, charging isolation transformer, diode rectifier connected in sequence, and the diode rectifier connected with the discharge control circuit; the diode rectifier, current limiting resistor, and energy storage capacitor in sequence The charging circuit is formed after being connected in series; the diode rectifier is connected in parallel with a compensation unit; the IGBT transistor and the freewheeling diode are connected in parallel with the energy storage capacitor to form a discharge circuit; the opening and closing, compensation and discharge functions of the capacitor energy storage module all respond to the discharge control circuit. output signal. The invention can flexibly adjust the flat-top time of the output voltage, overcome the shortcoming of the short top-top time of the RC discharge, and significantly increase the flat-top discharge time of the high-voltage power supply.
Description
Technical field [0001] The present invention relates to the field of power electronics, and more particularly, it relates to a long pulse high voltage power source and control method based on a capacitance energy storage power module. Background technique [0002] The existing high-power high voltage power supply is directly powered by the grid. For the grid side, the fluctuations and distortion caused by the grid side will have an adverse effect on the output of the high voltage power supply. Conventional energy storage high voltage power supplies use the capacitor group to charge and set in series to obtain high current pulse high pressure, the RC discharge waveform does not meet the long pulse top requirements required by the ribs and other devices. Therefore, how to study a long pulse high voltage power supply and control method based on a capacitor energy storage power module is the problem that we are now urgently needed. Inventive content [0003] In order to solve the de...
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IPC IPC(8): H02M9/06
CPCH03K3/53
Inventor 李青宣伟民毛晓惠夏于洋
Owner SOUTHWESTERN INST OF PHYSICS