Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Arc power supply system and its control method

A control method and technology of arc power supply, applied in electrical components, output power conversion devices, conversion of AC power input to DC power output, etc., can solve the problems of complex structure, short running time, and cumbersome process operation.

Active Publication Date: 2017-01-18
HUZHOU CRRC SPECIAL ELECTRICAL EQUIP CO LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of this, the object of the present invention is to provide an arc power supply system and its control method to solve the technical problems of the existing arc power supply system with complex structure, cumbersome process operation, narrow output voltage adjustment range, low power, and short running time

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
  • Arc power supply system and its control method
  • Arc power supply system and its control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Embodiment 1: as attached figure 1 As shown, the arc power supply system includes:

[0059] AC switchgear circuit breaker 1, one end is connected to the power grid side, and the other end is connected to the voltage regulating rectifier transformer 2, which is used for switching on and off the input power supply at the grid side;

[0060] Voltage regulating and rectifying transformer 2, one end is connected to AC switch cabinet circuit breaker 1, and the other end is connected to rectifying incoming line AC cabinet circuit breaker 3, by changing the gear position of voltage regulating and rectifying transformer 2, each tap point of voltage regulating and rectifying transformer 2 is controlled , to perform extensive adjustment of the output power;

[0061] The circuit breaker 3 of the AC cabinet for the rectification incoming line, one end is connected with the voltage regulating rectifier transformer 2, and the other end is connected with the thyristor rectifier 4, whi...

Embodiment 2

[0065] Embodiment 2: On the basis of Embodiment 1, the thyristor rectifier unit further adopts a three-phase bridge rectifier circuit structure, and realizes the operation modes of three independent thyristor rectifier units in different combinations through preset curves, and realizes three independent thyristor rectifier units. The rectifier units are sequentially turned on, so as to realize the controllable wide-range voltage regulation of the arc power supply system under different output powers. The output end of the thyristor rectifier 4 thyristor rectifier unit is further connected in parallel with a freewheeling diode, as attached figure 1 Freewheeling diodes D1, D2 and D3 shown in . In this embodiment, three sets of thyristor rectifier units are connected in series, and the output end of each set of thyristor rectifier units is connected in parallel with freewheeling diodes to solve the problem of the arc power supply system. Once a fault occurs in the series thyristo...

Embodiment 3

[0066] Embodiment 3: as attached figure 2 As shown, the arc power supply system further includes a host computer monitoring system 6, an on-site control unit 7, an AC switch cabinet relay protector 8, a rectifier incoming line AC cabinet relay protector 9, a rectifier transformer protector 10, and an on-load tap changer Tap position controller 11, freewheeling diode detection and protection module 12 and thyristor rectifier trigger and detection module 13;

[0067] The host computer monitoring system 6 is connected to the field control unit 7, and the field control unit 7 is connected to the thyristor rectifier 4. The host computer monitoring system 6 realizes the control of the thyristor rectifier 4 through the field control unit 7. The thyristor element sends a trigger pulse, and detects the working state of the thyristor rectifier 4;

[0068] The on-site control unit 7 is connected to the circuit breaker 1 of the AC switch cabinet through the relay protector 8 of the AC s...

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

No PUM Login to View More

Abstract

The invention discloses an arc power supply system and a control method thereof. By controlling on and off of an alternating current switch cabinet circuit breaker, switching on or off of a power grid side access power supply is realized. By controlling on and off of a rectification wire incoming alternating current cabinet circuit breaker, switching on or off of a thyristor rectifier input power supply is realized. By controlling switching on or off of the alternating current switch cabinet circuit breaker and the rectification wire incoming alternating current cabinet circuit breaker, preliminary selection of the output voltage range of the arc power supply system is realized. By changing the gear of a voltage adjustment rectification transformer, each take-off point of the voltage adjustment rectification transformer is controlled, and extensive control of the output voltage range of the arc power supply system is realized. A thyristor rectifier comprises more than two groups of thyristor rectification units which are connected in series. By controlling the conduction angles of thyristor components in the thyristor rectifier, fine adjustment of the output voltage range of the arc power supply system is realized. According to the invention, the technical problems of complex structure, fussy operation, narrow output voltage adjustment range, small power and short operation time of the existing arc power supply system are solved.

Description

technical field [0001] The invention relates to the technical field of high-power conversion, in particular to a controllable wide-voltage adjustable arc power supply system and a control method thereof which are widely used in fields such as industry, military industry, and scientific research. Background technique [0002] At present, arc power sources have been more and more widely used in military industry, scientific research, and industrial pollutant treatment. The load of the arc power supply is generally a special load, such as: magnet coils, arc heaters, electric furnaces, etc., with the characteristics of adjustable output voltage and current, continuous waveform, etc., and can be used as a source of high-voltage DC power for special loads. The output voltage range of the arc power supply directly determines the range of its applicable load, and the output voltage range affects the wide-field application of the arc power supply. [0003] At present, the arc power ...

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
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H02M7/155H02M7/162
Inventor 王海军张敏陈洁莲郭民陶洪亮赵道德吴强曹洋黄燕艳陈元初周成初蕊孙茂柳浩许汝波田华贵蔡宇峰邓建华
Owner HUZHOU CRRC SPECIAL ELECTRICAL EQUIP CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com