Digitalized control method and device for pulse power source

A technology of pulse power supply and control method, which is applied in the direction of electric pulse generator circuit and active components to generate pulses, etc., can solve the problems of low integration and achieve the effect of improving performance
CN102347751AInactive Publication Date: 2012-02-08INST OF HIGH ENERGY PHYSICS CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
INST OF HIGH ENERGY PHYSICS CHINESE ACAD OF SCI
Publication Date
2012-02-08
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention discloses a digitalized control method for a pulse power source, wherein the digitalized control method is used for controlling a main power supply loop which comprises n units connected in parallel, and each unit comprises an IGBT (Insulated Gate Bipolar Transistor) topological structure formed by connecting m IGBT H (Half) bridges in series. The method comprises the steps of: setting a carrier with a given waveform and the frequency F2 in a programmable logic device; inputting a given clock signal into the programmable logic device; calling the given waveform once every a given waveform period; calling the carrier once every 1 / (F2*m) and 1 / (F2*n) in a given waveform bottom width duration, wherein the carrier is not called beyond the given waveform bottom width duration; and scaling a difference value obtained by subtracting an output current value of the main power source loop from the called given waveform, adding a scaled product to the output current value of the main power supply loop, subtracting the output value from n equalized currents, comparing an obtained current-equalization difference value and an obtained reverse-phase difference value with the called carrier respectively to obtain 2*m*m PWM (Pulse-Width Modulation) signals which are used for controlling the main power source loop. The invention further provides a device for realizing the method.
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Description

technical field

[0001] The invention relates to the technical field of pulse power supplies, in particular to a digital control method for pulse power supplies.

[0002] The present invention also relates to a device for realizing the digital control method of the above-mentioned pulse power supply. Background technique

[0003] The arbitrary waveform pulse power supply outputs pulse current or voltage, and the arbitrary waveform switching pulse power supply is composed of IGBT topology, and the IGBT works in the switching state. According to the characteristics of IGBT, the average value of IGBT output voltage is:

[0004] V 0 =DV d (1)

[0005] After the filtering network, the average value of the load current is:

[0006] I 0 =KDV d (2)

[0007] in:

[0008] V 0 is the average value of the IGBT output voltage, I 0 is the average value of the load current, V d is the IGBT collector voltage;

[0009] D is the duty ratio of IGBT gate trigger pulse, and ...

Claims

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