Permanent magnet synchronous motor current type position estimation method for wind power generation based on adaptive observer and position estimation device

A technology of permanent magnet synchronous motor and observer, which is applied in the direction of control of electromechanical transmission, control of generator, motor generator control, etc. It can solve problems such as difficult implementation and complex algorithm, and achieve the effect of easy implementation and improved efficiency

Active Publication Date: 2016-12-14
HENAN NORMAL UNIV
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the control of wind power generators, it is necessary to estimate the position of the motor. At present, the results of estimating the position of the motor are: the current results are: the patent "permanent magnet synchronous motor quasi-sensorless position servo control device and method" with the announcement number CN104333285A A method for position detection of permanent magnet synchronous motors is proposed, however, the algorithm is complex and not easy to implement

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
  • Permanent magnet synchronous motor current type position estimation method for wind power generation based on adaptive observer and position estimation device
  • Permanent magnet synchronous motor current type position estimation method for wind power generation based on adaptive observer and position estimation device
  • Permanent magnet synchronous motor current type position estimation method for wind power generation based on adaptive observer and position estimation device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0022] Such as figure 1 Shown, the present invention comprises the following steps:

[0023] The first step is to collect the phase current of the permanent magnet synchronous motor , go to the second step;

[0024] In the second step, the pole allocation technique is used to design the control coefficient matrix L, so that is the Hurwitz matrix. in, ; ;Go to step 3;

[0025] The third step is to build the observer

[0026]

[0027]

[0028]

[0029] in, ; ; with are observer state variable 1 and state variable 2, respectively; is the phase current of the permanent magnet synchronous motor; is the parameter observed by the observer; is an intermediate state variable; with It is the initial value of the intermediate variable (the value range is 0~1000); is the control parameter (value range is 0~10000); L is the co...

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

A permanent magnet synchronous motor current type position estimation method for wind power generation based on an adaptive observer and a position estimation device. The position estimation device comprises a current sensor, a signal amplifier, a filter and a position estimator. The current sensor acquires phase current of the permanent magnet synchronous motor. The acquired signal is processed by the signal amplifier and the filter. The processed signal is transmitted to the position estimator, thereby estimating the position of the permanent magnet synchronous motor. The position estimator is obtained through operating the permanent magnet synchronous motor current type position estimation method for wind power generation according to the invention by a CPU. The permanent magnet synchronous motor current type position estimation method for wind power generation and the position estimation device are beneficial in that motor position estimation efficiency is improved because the method can be easily realized.

Description

technical field [0001] The invention relates to a current-type position estimation method and device of a permanent magnet synchronous motor for wind power generation based on an adaptive observer. Background technique [0002] With the continuous enhancement of people's awareness of environmental protection, wind power technology has developed rapidly in recent years. Because the permanent magnet synchronous generator has the advantages of light weight and easy control, it is widely used in wind power generation. In the control of wind power generators, it is necessary to estimate the position of the motor. At present, the results of estimating the position of the motor are: the current results are: the patent "permanent magnet synchronous motor quasi-sensorless position servo control device and method" with the announcement number CN104333285A A position detection method of permanent magnet synchronous motor is proposed. However, the algorithm of this method is complex an...

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): H02P21/13H02P21/18H02P21/22
CPCH02P21/13Y02P80/10
Inventor 王立吴喜桥李雪萍宋孝辉
Owner HENAN NORMAL UNIV
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