Compact repetitive high-voltage charging power supply with low input electric power

Abstract

The invention discloses a compact repetitive high-voltage charging power supply with low input electric power, and relates to the field of pulse power. The charging power supply comprises, from an input end to an output end, a charger, a low-voltage unit, a high-voltage unit and a charging load. One end of the charger is connected with a power supply system. The charger is portable and mobile. The power supply system is either a DC power supply or an AC power supply. The feed power of the charger is not more than 500 watts. The high-voltage unit converts the low-voltage DC power of a low-voltage unit super capacitor group and then outputs high voltage with output positive and negative voltage not less than 50kV. The invention pays attention to the design of the high-voltage charging power supply from a low-input-electric-power (as low as watts), high-output-charging-voltage (tens of kilovolts or even hundreds of kilovolts), and repetitive frequency working angle, and uses pre-stage low-voltage energy storage based on the super capacitor group while guaranteeing repetitive high-voltage charging, thereby greatly reducing the input electric power of the entire charging power supply.

Description

technical field [0001] The invention relates to the field of pulse power, in particular to a high-voltage charging power supply of a high-power pulse power source, which can be applied to high-power microwave source technology research, and can also play a role in pulse power technology fields such as industry and medical treatment. Background technique [0002] As an important part of the repetitive frequency high-power pulse power source, the repetitive frequency high-voltage charging power supply is used to provide energy to the Marx generator or pulse forming line in the power source and perform repetitive high-voltage charging of tens of kilovolts. The high-voltage charging power supply usually adopts soft switching technology. The high-voltage switching power supply generates a high-voltage pulse of the order of milliseconds to charge the high-power pulse power source. The disadvantage of this type of high-voltage charging power supply is that since it is fed directly ...

AI Technical Summary

Problems solved by technology

The disadvantage of this type of high-voltage charging power supply is that since it is fed directly from the power supply system, the compression of the supplied energy on the time scale is not realized, resulting in the input electric power of the power supply being greater than the output electric power and an order of magnitude with the output electric power, generally kW Level or ten kW level, there is a problem of high input electric power, which greatly limits the use of high-power pulse power sources based on such high-voltage charging power sources in low power supply applications

Currently, high-power pulse power sources have a wide range of applications or potential applications, and there are many cases where the power supply system supplies very low power, such as airborne high-power pulse power devices, whose power supply system supplies charging power with only a few hundred watts. , the above-mentioned high-voltage charging power supply cannot be used in such applications

[0003] At present, no one pays attention to the design of high-voltage charging power supply from the perspective of low input electric power (down to several watts), high output charging voltage (tens of kilovolts or even hundreds of kilovolts), and repeatable frequency operation.

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