Switched reluctance motor low-speed variable load control method and device and switched reluctance motor

A technology of switched reluctance motor and control method, applied in the direction of AC motor control, control system, general control strategy, etc., can solve the problems of light-load start-up overshoot, slow start, variable load response stuck, etc., to increase the response speed Effect

Active Publication Date: 2021-08-27
SHENZHEN TOPBAND
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004]When the switched reluctance motor is started and operated at low speed and variable load, it is difficult for traditional PI control to adjust the appropriate proportional coefficient KP and integral coefficient K

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
  • Switched reluctance motor low-speed variable load control method and device and switched reluctance motor
  • Switched reluctance motor low-speed variable load control method and device and switched reluctance motor

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0038] In order to understand the technical features, objects and effects of the present invention, specific embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0039] In a preferred embodiment, reference figure 1 The low speed transformer method of the switching magnetic resistance motor of the present embodiment includes the following steps:

[0040]S1, real-time acquisition of the feedback speed of the switch magnetic resistance motor, the difference between the feedback speed and the reference speed is obtained, and the error variation is obtained by the difference between the current error amplitude ERR and the stored previous error difference ERR. Value DERR. Specifically, the switching magnetic resistor starts operating the current actual speed of the switch magnetic exclusion motor after the start of the rotation speed sensor, and the current actual speed is used as the feedback speed. A comparison table of the mo...

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 relates to a switched reluctance motor low-speed variable load control method and device and a switched reluctance motor. The method comprises the following steps: S1, obtaining a feedback rotating speed of the switched reluctance motor in real time, obtaining an error amplitude Err according to a difference value between the feedback rotating speed and a reference rotating speed, and obtaining an error change amplitude DErr according to a difference value between a current error amplitude Err and a stored previous error amplitude Err; and S2, adjusting a proportionality coefficient KP and an integral coefficient KI of the switched reluctance motor according to the error amplitude Err and the error change amplitude DErr. Parameters of PI control are automatically adjusted along with different running states of the motor, overshoot values during starting, load changing and speed increasing and decreasing can be effectively reduced, and the response speed of the system is increased.

Description

technical field [0001] The invention relates to the field of switched reluctance motors, more specifically, to a method and device for controlling low-speed variable load of a switched reluctance motor and a switched reluctance motor. Background technique [0002] The switched reluctance motor is the latest generation speed control system following the frequency conversion speed control system and the brushless DC motor speed control system. It has a simple and firm structure, a wide speed range and high system reliability. The complete system mainly consists of motor entity, power converter, controller and position detector. The controller contains the power converter and control circuit, while the rotor position detector is installed at one end of the motor. [0003] PI control is a kind of linear control, which forms a control deviation according to the given value and the actual output value, and uses the proportion and integral of the deviation to form a control quanti...

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): H02P25/08H02P23/00
CPCH02P25/08H02P23/0004
Inventor 孙琍何舟付彦超
Owner SHENZHEN TOPBAND
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