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

Thyristor rectifier bridge parallel operation full digital current homogenizing control device

An all-digital rectifier bridge technology, applied in the direction of output power conversion device, AC power input conversion to DC power output, electrical components, etc., to achieve the effect of large current sharing coefficient, easy fault judgment and convenient parameter adjustment

Active Publication Date: 2010-08-04
DONGFANG ELECTRIC MACHINERY +1
View PDF2 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the defects of the above existing control devices, the present invention aims to provide a fully digital intelligent current sharing control device for parallel operation of thyristor rectifier bridges that is suitable for use in the field where current sharing is required when rectifier cabinets are running in parallel in the excitation system

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
  • Thyristor rectifier bridge parallel operation full digital current homogenizing control device
  • Thyristor rectifier bridge parallel operation full digital current homogenizing control device
  • Thyristor rectifier bridge parallel operation full digital current homogenizing control device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023]Thyristor rectifier bridges operate in parallel with a fully digital intelligent current sharing control device, including a regulator 1, a rectifier cabinet controller 2, a thyristor rectifier bridge 3 and a detection device 4. The regulator 1 is the main controller, and the machine-side signal processing module 5 , a synchronous signal processing module 6 and a regulator controller 7; the rectifier cabinet controller 2 is a slave controller, which is composed of a rectifier cabinet controller control module 8, a rectifier cabinet controller analog-to-digital conversion module 9, and a rectifier cabinet controller pulse Forming module 10, rectifier cabinet controller switching value input and output module 11 and rectifier bridge display controller 12; thyristor rectifier bridge 3 is composed of thyristor fully controlled rectifier bridge 13, pulse amplification module 14, pulse transformer isolation trigger module 15 and centralized reverse The blocking peak absorption ...

Embodiment 2

[0027] Thyristor rectifier bridges operate in parallel with a fully digital intelligent current sharing control device, including a regulator 1, a rectifier cabinet controller 2, a thyristor rectifier bridge 3 and a detection device 4. The regulator 1 is the main controller, and the machine-side signal processing module 5 , a synchronous signal processing module 6 and a regulator controller 7; the rectifier cabinet controller 2 is a slave controller, which is composed of a rectifier cabinet controller control module 8, a rectifier cabinet controller analog-to-digital conversion module 9, and a rectifier cabinet controller pulse Forming module 10, rectifier cabinet controller switching value input and output module 11 and rectifier bridge display controller 12; thyristor rectifier bridge 3 is composed of thyristor fully controlled rectifier bridge 13, pulse amplification module 14, pulse transformer isolation trigger module 15 and centralized reverse The blocking peak absorption...

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 a thyristor rectifier bridge parallel operation full digital current homogenizing control device, which comprises a regulator, a rectifier cabinet controller, thyristor rectifier bridges and a detection component. The regulator is a master controller; the rectifier cabinet controller is a slave controller; a terminal signal processing module regulates terminal voltage and current signals of a generator, so that the terminal voltage and current signals are suitable to be output to an analog-to-digital conversion module of a regulator controller; and a synchronization signal processing module regulates the anode voltage of the rectifier cabinet thyristor rectifier bridges, so the anode voltage is suitable to be output to a pulse formation module of the regulator controller to serve as a synchronization signal of the anode voltage of the thyristor rectifier bridges. Due to the adoption of digital closed loop control, full digital intelligent current homogenization for a plurality of parallel operation thyristor rectifier bridges under full-motion environment is realized by real-time sampling and control.

Description

technical field [0001] The invention relates to the field of motor excitation control, and mainly relates to an all-digital intelligent current sharing control device for parallel operation of thyristor rectifier bridges. Background technique [0002] Excitation device generally consists of excitation regulator cabinet, excitation rectifier cabinet, de-excitation and overvoltage protection cabinet. Each excitation rectifier cabinet contains an independent thyristor rectifier bridge, and the excitation device of a large-scale unit generally consists of multiple excitation rectifier cabinets (thyristor rectifier bridges) running in parallel at the same time. Thyristor rectifier bridges running in parallel will cause large differences in the output current of thyristor rectifier bridges due to the discreteness of the parameters of each thyristor, different wiring lengths, and different contact resistances, making the load of thyristor rectifier bridges running in parallel very ...

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 Applications(China)
IPC IPC(8): H02M7/155
Inventor 汪大卫
Owner DONGFANG ELECTRIC MACHINERY
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