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

Flux linkage predicted control method and device of generalized cascaded model of asynchronous motor

A technology of asynchronous motor and cascade model, which is applied in the direction of motor generator control, electromechanical transmission control, electronic commutation motor control, etc., to achieve the effects of improving execution efficiency, eliminating complex calculations, and being easy to understand

Active Publication Date: 2019-02-01
NORTH CHINA UNIVERSITY OF TECHNOLOGY
View PDF4 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the purpose of the present invention is to propose a generalized control method with strong versatility and low complexity, which can significantly improve the control effect and solve the problem of repeated debugging of the weight coefficients in the traditional model predictive control. Linked model predictive flux linkage control method and device

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
  • Flux linkage predicted control method and device of generalized cascaded model of asynchronous motor
  • Flux linkage predicted control method and device of generalized cascaded model of asynchronous motor
  • Flux linkage predicted control method and device of generalized cascaded model of asynchronous motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0047] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0048] The invention will be further described below in conjunction with the accompanying drawings, as figure 1 As shown, it is a flow chart of the implementation method of the generalized cascade model prediction flux linkage control method for asynchronous motors provided by the present invention, including:

[0049] Step 101, obtain the torque command according to the PI regulator of the outer ring speed, and set the flux linkage amplitude command, the steps include:

[0050] According to the torque command obtained by the PI regulator of the outer ring speed Specifically expressed as (k p and k i are the proportional gain and integral gain in the PI regulator respectively, s means differential), directly set the...

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 flux linkage predicted control method of a generalized cascaded model of an asynchronous motor. The method comprises that a torque instruction is obtained according to an outer-ring rotating speed PI regulator, and a flux linkage amplitude instruction is set; according to a stator flux linkage and current obtained by calculation, the stator flux linkage and torque at timeK+1 are predicted; and according to the obtained torque instruction and flux linkage amplitude instruction as well as the stator flux linkage and torque at time K+1, a flux linkage objective functionand a torque objective function are constructed; and according to the obtained flux linkage objective function and torque objective function, an optimal candidate voltage vector is generated, and a driving signal of each switch tube of an inverter is constructed. The control and device can be used to solve the problem that the weight coefficient needs to be adjusted repeatedly in a traditional model predicted control scheme.

Description

technical field [0001] The invention relates to the field of speed regulation control of high-performance asynchronous motors, in particular to a generalized cascade model prediction flux linkage control method and device for asynchronous motors. Background technique [0002] The model predictive control method has a simple principle, is easy to implement multivariable control, and is easy to solve problems such as nonlinear constraints. The optimal solution is obtained through online rolling optimization. In recent years, a large number of scholars have carried out extensive research on the application of model predictive control in the field of electric drive. The control variables of the traditional scheme are electromagnetic torque and stator flux amplitude with inconsistent dimensions. In order to achieve good dynamic and static performance of the system under various working conditions, it is necessary to determine the appropriate weight coefficient through repeated si...

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): H02P21/00H02P21/28
CPCH02P21/0003H02P21/28
Inventor 张永昌张博越
Owner NORTH CHINA UNIVERSITY OF TECHNOLOGY
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