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

Triple four-quadrant rectifier simulation method

A technology of four-quadrant rectifier and simulation method, applied in software simulation/interpretation/simulation, conversion of AC power input to DC power output, irreversible conversion of AC power input into DC power output, etc., can solve the problem of relatively long sampling time, Affect the accuracy of calculation results, cumbersome implementation steps and other issues, to achieve the effect of solving convergence, short sampling time, and simple implementation steps

Inactive Publication Date: 2010-11-24
ZHUZHOU CSR TIMES ELECTRIC CO LTD
View PDF0 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, using the triple four-quadrant rectifier simulation model built with the modules in the MATLAB toolbox, the implementation steps are cumbersome, occupying a lot of system resources, the sampling time required for real-time simulation is relatively long, and the real-time performance is not high
Moreover, the triple four-quadrant rectifier simulation model built with the modules in the toolbox is difficult to solve when performing real-time simulation in dSPACE, which affects the accuracy of the calculation results, and even errors occur, and the accuracy is not high

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
  • Triple four-quadrant rectifier simulation method
  • Triple four-quadrant rectifier simulation method
  • Triple four-quadrant rectifier simulation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0053] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0054] Embodiment one of the present invention.

[0055] see image 3 , the triple four-quadrant rectifier system simulation method of the present invention comprises:

[0056] Step 1, obtaining the corresponding relationship between the PWM control signal and the main circuit topology of the triple four-quadrant rectifier system;

[0057] Step 2, establishing the state mathematical expression of the triple four-quadrant rectifier system;

[0058] Step 3, obtain...

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 triple four-quadrant rectifier simulation method which comprises the following steps: acquiring the corresponding relation between each of PWM control signals and the main circuit topological structure of a triple four-quadrant rectifier system; establishing state mathematical description of the triple four-quadrant rectifier system; acquiring a state description equation of a mathematical model of the triple four-quadrant rectifier system under control signals; and carrying out state equation judgment on the state description equation to acquire a state equation matrix and the mathematical model of the triple four-quadrant rectifier. The real-time simulation method of the invention simplifies the problem of establishing a system state space model of the triple four-quadrant rectifier into the problem of selecting relevant parameters according to the conduction conditions of switching elements, thus the invention ensures the accuracy, reduces the complexity of mathematical modeling, simplifies the realization steps, occupies few system resources, has shorter sampling time in real-time simulation, and has very high real-time property.

Description

technical field [0001] The invention relates to the field of simulation technology, more specifically to the field of half-physical simulation. Background technique [0002] With the rapid development of computer software and hardware, computer simulation has been more and more widely used. Compared with other types of simulation methods, hardware-in-the-loop simulation has a higher possibility of reality, and it is a simulation method with the highest confidence in simulation technology. AC drive is an important direction for the development of railway traction power in my country. In order to provide modern computer simulation testing means for the design and development of AC drive control devices for electric locomotives, the dSPACE real-time simulation system platform is often used to research and develop AC drive half-in-the-loop simulation systems. [0003] During the use of the rectifier in the AC drive system, it should provide straight DC current and DC voltage on...

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): H02M7/02H02M7/155G06F9/455
Inventor 刘可安王坚应婷
Owner ZHUZHOU CSR TIMES ELECTRIC 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