Full energy storage pulse power supply and current pulse generation method

Abstract

The present invention relates to a current pulse generation method. The method comprises the steps of: employing an energy storage capacitor to store energy, wherein energy required by an ascent stageof current waveform pulses is supplied by the energy storage capacitor; and returning energy stored in a magnet load inductor at a descent stage of the current waveform into the energy storage capacitor to be prepared for the next pulse so as to achieve repeat utilization of the energy. The full energy storage mode is employed to specifically solve the main problem of the high excitation power supply of the pulse power supply of a particle accelerator.

Description

technical field [0001] The invention relates to the field of particle accelerators, and also relates to a full energy storage pulse power supply and a current pulse generation method. Background technique [0002] A particle accelerator is a device for accelerating charged particles, in which the particles move in a confined magnetic field, and the magnet and the excitation power supply together constitute the accelerator magnetic field system. Synchrotron is a kind of particle accelerator. When the accelerator accelerates charged particles, the confinement magnetic field needs to be increased synchronously with the increase of the energy of the accelerated particles. Therefore, the excitation current needs to be increased synchronously. When an acceleration cycle is completed, the magnetic field needs to be reduced. To the low position, the accelerated particle beam is injected into the accelerator and is ready to start the next acceleration cycle. The typical working curre...

AI Technical Summary

Problems solved by technology

To sum up, in the traditional pulse power supply with strong excitation voltage, the current pulse frequency cannot be too high, generally within 1 Hz; when the power supply is working, it has a relatively large impact on the power grid, and it is generally necessary to take various measures to compensate for power grid fluctuations and regulation; and the power pulse power is very large, and the required power distribution is also large

[0004] Additionally, if figure 1 As shown in the intermediate voltage waveform, in the current injection section and the flat top section, the current is DC, and the inductor voltage is zero at this time, only the DC voltage, that is, the injection section voltage VP1 and the flat top section voltage VP3 are several times to tens of times lower than the peak voltage VP2 times, it means that the output voltage of the power supply needs to change continuously in a wide range, and the output accuracy of the power supply needs to be guaranteed at each stage, which is very difficult for the power supply

The general situation is to ensure the strong excitation voltage, so that the power supply voltage in the flat top section is very low. For the switching power supply, the duty cycle is very small, which seriously affects the power supply performance.

The DC section is either an injection section or a beam storage stage, which will have an adverse effect on the beam current in the flat-top section.

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