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

Real-time controller of universal frequency converter

A real-time controller and frequency converter technology, applied in the field of frequency converter control, can solve the problems affecting the real-time performance of the system and increase the cost, and achieve the effect of high control real-time performance and low cost

Inactive Publication Date: 2010-08-04
ZHUZHOU CSR TIMES ELECTRIC CO LTD
View PDF5 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Since PLC103 performs logic control of switch signals, the cost is greatly increased
Moreover, after the floating-point co-processing DSP102 performs calculations, the calculation results are sent back to the fixed-point master DSP101, and then the fixed-point master DSP101 outputs PWM control signals to control the conduction time and frequency of each power unit according to the calculation results, and changes the output frequency of the inverter. This affects the real-time performance of the system to a certain extent

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
  • Real-time controller of universal frequency converter
  • Real-time controller of universal frequency converter
  • Real-time controller of universal frequency converter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0044] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0045] See figure 2 , This figure is a schematic diagram of the structure of a real-time controller of a universal frequency converter provided in the first embodiment of the present invention.

[0046] The universal inverter real-time controller provided in this embodiment includes: a first floating-point DSP201, a first dual-port RAM202, and a microprocessor 203.

[0047] The microprocessor 203 is used to implement the management and communication control of the entire system, and send control command information to the first floating-point DSP 201 through the first dual-port RAM 202; The operating information of the first floating-point DSP 201 is sent to the upper computer.

[0048] The main management and communicatio...

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 provides a real-time controller of a universal frequency converter, which comprises a first floating-point DSP, a first dual-port RAM and a microprocessor, wherein the microprocessor is used for sending control command information to the first floating-point DSP via the first dual-port RAM; the operation information of the first floating-point DSP is sent to an upper machine via the first dual-port RAM; the first floating-point DSP is used for reading the external voltage signal and current signal and carrying out algorithm operation according to the voltage signal, the current signal and the control command information, and PWM control pulse is generated by the operation result to realize rectifier control. The real-time controller of the universal frequency converter has higher real-time property and low cost.

Description

Technical field [0001] The invention relates to the technical field of frequency converter control, in particular to a real-time controller of a general frequency converter. Background technique [0002] With the development of power electronic technology, general-purpose frequency converters, as a product of power electronic technology, have been widely used in various fields of the national economy, such as metallurgy, petroleum, and electric power. [0003] Inverter is a control device that uses the on-off action of power semiconductor devices to transform industrial frequency power into another frequency electric energy. The universal inverter real-time controller is the most critical component of inverter control, which is directly related to the control quality and reliability of the inverter. The role of the universal inverter real-time controller is to perform a series of complex calculations based on the voltage and current signals collected by the system, generate PWM pu...

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): H02M7/42
Inventor 丁荣军罗云飞尚敬苗亚武彬
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