A Repetitive Pulse Power Supply Based on Forced Turn-Off Bridge Commutation

Abstract

The invention discloses a repetitive pulse power supply based on forced-off bridge type commutation, which adopts an H-bridge structure and specifically includes a charger, an energy storage capacitor, an upper discharge branch, a lower discharge branch, and an upper energy feedback branch , the lower energy feedback branch and the forced shutdown circuit; by adopting the form of the energy feedback branch, the current pulse width on the inductive load can be adjusted, so that the current pulse width can be controlled; the load storage can be realized by forcing the shutdown branch through the switch Energy recovery, the maximum recovery rate can reach more than 90% of the load energy storage when the load current, realizes energy saving and environmental protection, and reduces the charging energy required for the next working cycle; according to different specific implementation methods, the present invention can be used for load The pulse width of the upper current is adjusted, and the energy on the load is recovered at the same time, thereby improving the energy utilization rate, reducing the requirements of the capacitor charging system, and increasing the operating frequency of the system.

Description

technical field [0001] The invention belongs to pulse power technology, and in particular relates to a power supply of a high-voltage high-power repetitive pulse system, especially its circuit topology and working mode. Background technique [0002] Repetitive pulse power technology has important applications in scientific research and national defense industry, and is an important direction for the development of pulse power technology. Generating repetitive pulse power requires a matching high-voltage high-power repetitive pulse power supply, and the repetition frequency, capacity, pulse width and reliability of the power supply must meet certain requirements. [0003] Most of the repetitive pulse power supplies currently used for inductive loads use capacitors for energy storage. The circuit topology scheme proposed in the document "30T Repeating Pulsed Field System for Neutron Diffraction" (IEEE Transactions on Applied Superconductivity, 2000, 10(1):534-537) is the main...

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Problems solved by technology

[0005] In order to overcome the shortcomings of high back pressure and low average charging power of energy storage capacitors in the prior art, the present invention provides a new type of compact high-voltage high-power repetitive pulse power supply based on forced shutdown of semi-controlled devices and energy feedback in resonance mode

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