DC voltage stabilizing power source based on three-phase pulse rectifier and control method thereof

A technology of DC regulated power supply and pulse rectification, which is applied in the direction of converting irreversible AC power input to DC power output, etc., can solve the problems of wasting electric energy, poor output stability, and high harmonic content

Inactive Publication Date: 2009-07-08
CHINA CNR LIMITED DALIAN ELECTRIC TRACTION R&D CENT
View PDF0 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, many DC power supplies are still controlled by single-chip microcomputers, and the operation speed and control accuracy are difficult to meet the control requirements of the current technology,

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
  • DC voltage stabilizing power source based on three-phase pulse rectifier and control method thereof
  • DC voltage stabilizing power source based on three-phase pulse rectifier and control method thereof
  • DC voltage stabilizing power source based on three-phase pulse rectifier and control method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] The present invention will be further described below in conjunction with the accompanying drawings. Such as Figure 1-2 As shown, a DC stabilized power supply based on a three-phase pulse rectifier is composed of a main circuit, a detection circuit and a control circuit. The main circuit includes a smoothing reactor circuit 2, a power module circuit 4, an output filter circuit 5 and The cooling fan circuit 7, the detection circuit includes an input three-phase voltage detection circuit 1, an input three-phase current detection circuit 3, and an output voltage and current detection circuit 6, and the control circuit is composed of a digital signal processor DSP and peripheral circuits. The digital signal processor DSP is a TMS320LF2407 digital signal processor. The peripheral circuit includes a crystal oscillator circuit, a power supply circuit, an AD sampling circuit, and a PWM output isolation circuit.

[0035] Such as Figure 1-5 As shown, a control method of a DC...

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 DC regulation power supply based on a three-phase pulse rectifier and a control method thereof. The DC regulation power supply comprises a main circuit, a testing circuit and a control circuit; and the control circuit comprises a TMS320LF2407 DSP, a crystal oscillating circuit, a power supply circuit, an AD sampling circuit and a PWM output isolating circuit. The control method of the DC regulated power supply has various forms including sampling, DC voltage control, AC current control and switching logic control. The DSP is added to the DC regulated power supply and the control method thereof, so that the DC regulated power supply is able achieve the digitalized processing. The input three-phase 380V alternative voltage is processed through controllable direct-current, so that stable 600V direct current voltage is obtained. By adopting a predictive current control method, the shape of incoming current is approximate to that of a sine wave, and the incoming current is same as the input network voltage in phase position, thereby leading the AC input power factor to be approximate to 1, and greatly reducing the pollution on an electric network.

Description

technical field [0001] The present invention relates to a DC stabilized power supply based on a three-phase pulse rectifier and its control method, in particular to a DC stabilized power supply based on a three-phase pulse rectifier that rectifies a three-phase 380V AC to obtain a stable 600V DC in an electric locomotive manufacturing plant Power sources and their control methods. Background technique [0002] When the electric locomotive moves in the manufacturing plant or maintenance base, it needs to use the power supply provided by the ground. This ground power supply is called the motor vehicle power supply. With the popularization of electrification of railway electric locomotives in my country, DC drive electric locomotives have been gradually replaced by AC drive electric locomotives. The motor vehicle power requirements of AC drive electric locomotives are DC 600V, which is completely different from the requirements of DC drive electric locomotives for motor vehicle...

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
IPC IPC(8): H02M7/04
Inventor 吴志友马惠春车向中戴碧君
Owner CHINA CNR LIMITED DALIAN ELECTRIC TRACTION R&D CENT
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap