Multi-module pulsed power supply based on energy storage of high-temperature super-conduction pulsing transformers

Abstract

The invention provides a multi-module pulsed power supply based on energy storage of high-temperature super-conduction pulsing transformers, and belongs to the technical field of pulse power. The multi-module pulsed power supply comprises two or more than two single-module pulsed power supplies, wherein each single-module pulsed power supply consists of primary charging power supplies, discharging switches, a high-temperature super-conduction pulsing transformer, a power diode, a pulsed capacitor and a load; the primary charging power supplies of each single-module pulsed power supply are connected to two ends of a primary winding of the corresponding high-temperature super-conduction pulsed transformer through the corresponding switches in parallel; and each power diode and the corresponding load are serially connected with a secondary winding of the corresponding high-temperature super-conduction pulsed transformer to form a loop. The multi-module pulsed power supply is characterized in that the single-module pulsed power supplies are connected to one another in parallel, and each single-module pulsed power supply is connected with the corresponding pulsed capacitor through a switching circuit switch and is connected with a one-way conduction unit in parallel. The multi-module pulsed power supply based on energy storage of the high-temperature super-conduction pulsing transformers has the advantages that the transmission efficiency is high, pulse amplitudes and pulse widths of outputting current are adjustable, and the voltage of a discharging end of the primary winding is low.

Description

technical field [0001] A multi-module pulse power supply based on high-temperature superconducting pulse transformer energy storage belongs to the technical field of pulse power. Background technique [0002] Pulse power technology is an important part of the contemporary high-tech field, and its development and application are closely related to the development of other disciplines. The main content of pulse power technology research is how to store energy economically and reliably, and efficiently transmit large energy and high power to the load, also known as high power pulse technology. Due to military, scientific experiments and industrial needs, a series of scientific and technical problems have been proposed for pulse power technology in terms of energy storage, power rise time and flat top, repetition rate, stability and life. Intermediate energy storage Components are the basic components and key components of pulse power technology. In many cases, the volume and w...

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Problems solved by technology

[0003] In the prior art, most pulse power technologies use capacitors and high-temperature superconducting energy storage inductors as energy storage elements for energy storage. However, when capacitors are used as energy storage elements, there are the following disadvantages: (1) The energy storage density of capacitors is not high. High, it is difficult to reduce the volume of high-power pulse power supply; (2) The capacitor has a certain leakage current and cannot store energy for a long time

The problem that it exists is that if a current pulse with a very high amplitude is to be obtained, a large number of superconducting energy storage inductors need to be superimposed, which makes the scale of the system very large, which is not conducive to the reduction of the volume of the pulse power supply and the simplification of the structure; and Due to the high voltage generated across the inductor during discharge, the circuit breaker technology is also one of the main factors limiting its development

The problems of this mode are: (1) the primary side discharges the resistive discharge circuit, so energy loss is inevitable; (2) increasing the resistance of the discharge circuit can effectively reduce energy loss and improve system transmission efficiency, but increases The resistance of the discharge circuit will generate high voltage on the primary side of the superconducting pulse transformer during discharge, which is not conducive to system safety

The patent whose application number is CN201210355467 uses a capacitor as an energy storage element, and its disadvantages are as described above, and the discharge method of this patent is that the capacitor discharges the primary winding of the transformer, so that the secondary winding induces a current pulse; and the patent whose application number is CN201210228710 The Meat-grinder energy storage and discharge mode adopts the principle of autotransformer. The primary side and secondary side of the transformer are connected in series to store energy together. The disadvantage is that the secondary side of the constant conduction will increase the loss when participating in energy storage, and it is not easy to realize multi-module long-term Energy storage, its discharge mode is that the primary side and secondary side of the transformer jointly oscillate and discharge to the capacitor, so that the secondary side loop induces a current pulse. generate high current pulses

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