A combined klystron array tube body flow identification method

Abstract

A combined klystron array tube body overcurrent identification method, comprising a klystron array with a plurality of klystrons, the cathode of each klystron is connected to the negative pole of a high-voltage power supply, and the collector of each klystron Connected with the current sensor, the current sensor receives the tube current of the klystron array and inputs it to the signal conditioning module through the coaxial line, and the conditioned signal is output to the threshold value discrimination module, and the threshold value adjustment module further processes the signal to obtain the control comparator. For the received signal, the threshold screening module selects a screening algorithm according to the system operation mode to process it, and the processing result is sent to the decision-making board for multi-channel decision-making algorithm calculation, and the calculation result is fed back to the threshold screening module of each channel to determine which The screening result of the channel is sent to the protection board, which drives the protection board to select the blocking mode of the high-voltage power supply connected to it according to the system safety level requirements. The invention can timely and effectively identify the fault of the klystron and ensure the stable operation of the system.

Description

Technical field: [0001] The invention relates to an overcurrent identification method, in particular to a combined klystron array tube body overcurrent identification method. Background technique: [0002] In order to improve the overall output power capability of the microwave system, the high-power centimeter-wave system often adopts a parallel connection method, and multiple klystrons are reasonably combined to obtain megawatt-level or even higher output power. One of the characteristics of the klystron, the core device in the system, is that internal ignition will inevitably occur, which will cause overcurrent in the klystron body. For this fault state, immediate and effective protection measures should be adopted to ensure that the energy input is cut off when the ignition energy does not cause damage to the klystron. When multiple tubes are connected in parallel, the phenomenon caused by this fault will be very complicated. Currently, the solution to this problem i...

AI Technical Summary

Problems solved by technology

This approach can neither distinguish which klystron has an overcurrent fault, so that it can be dealt with in a targeted manner; it also makes the microwave output energy interrupted, affecting the steady-state operation of the system

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