Digitalized control method and device for pulse power source
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
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
Inactive Publication Date: 2012-02-08
INST OF HIGH ENERGY PHYSICS CHINESE ACAD OF SCI
View PDF5 Cites 6 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
Although CPLD is also a programmable logic device, it is based on the EEPROM technology, and its integration level is low. With MicroCell (comprising combination part and register) as the basic unit, it is suitable for combinational logic operations, but the control algorithm of the present invention is sequential logic control, which is not suitable for Using CPLD
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0032] Arbitrary waveform pulse power requires a controller with fast response time and high tracking accuracy for a given waveform.
[0033] The mainstream products of FPGA are VIRTEX-6 (high-performance series) and SPARTAN-6 (low-cost series) of XILINX Company, Stratix-IV (high-performance series) and Cyclone-IV (low-cost series) of ALTERA Company. Among the present invention, FPGA adopts Cyclone-II series product of ALTERA company, and Cyclone II device provides 4,608 to 68,416 logic elements (LE), and has a whole set of best functions, including embedded 18-bit x18-bit multiplier, special-purpose external memory Interface circuit, 4kbit embedded memory block, phase-locked loop (PLL) and high-speed differential I / O capability. Cyclone-II series product has EP2C5, EP2C8, EP2C15, EP2C20, EP2C35, EP2C50, EP2C70, how many internal resources are different, according to the control method of the present invention, FPGA adopts EP2C35F672, and it is FBGA package, totally 672 pins, ...
Embodiment 2
[0040] refer to Figure 4 , is a schematic diagram of the main circuit of the power supply controlled by the digital controller of the pulse power supply provided by the present invention. In the second embodiment, the main circuit structure of the arbitrary waveform pulse power supply is an IGBT topology in which m=5 IGBTH bridges are connected in series to form a unit, and n=10 units are connected in parallel. Figure 5 Shown is an enlarged view of the series structure of 5 IGBT H-bridges in each parallel unit in the main circuit of the power supply.
[0041] Refer again Figure 6 , for control Figure 4 The digital controller component layout diagram of the main circuit of the pulse power supply shown. The main circuit of the power supply with the above structure has 50 IGBT H-bridges, that is, 100 IGBT gates need to be controlled. Therefore, the digital controller must generate 2×m×n=100 PWM signals.
[0042] combine Figure 4 and Figure 6 , Figure 4 The output si...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Login to view more
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.
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
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): H03K3/021
Inventor 沈莉黄川唐靖宇
Owner INST OF HIGH ENERGY PHYSICS CHINESE ACAD OF SCI
Login to view more 
Login to view more