Field-weakening control method for permanent magnet synchronous motor
A permanent magnet synchronous motor and field-weakening control technology, which is applied in motor control, motor generator control, AC motor control, etc., can solve the problems of easy instability of motor vibration, reduce motor vibration, and reduce current ripple. wave, increasing the stability effect
Active Publication Date: 2017-11-24
SHANGHAI SIGRINER STEP ELECTRIC
3 Cites 7 Cited by
AI-Extracted Technical Summary
Problems solved by technology
View more
Method used
View more
Abstract
The invention discloses a field-weakening control method for a permanent magnet synchronous motor, and the method comprises the steps: a, obtaining a d-axis output voltage Ud0'' and a q-axis output voltage Uq0'' through no-current-loop field-weakening control or single-current-loop field-weakening control; b, adding a high-frequency q-axis compensation current iq'' to the q-axis output voltage Uq0'', so as to reduce the ripple current in an actual q-axis current iq of the permanent magnet synchronous motor. In the field-weakening operation, the method achieves the compensation for a high-frequency quadrature axis current in the q-axis output voltage, reduces the current ripples of the actual q-axis current iq of the permanent magnet synchronous motor and the motor vibration, and improves the operation stability of the motor.
Application Domain
Electronic commutation motor controlAC motor control +6
Technology Topic
Field weakeningMotor vibration +5
Image
Examples
- Experimental program(1)
Example Embodiment
PUM


Description & Claims & Application Information
We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.
Similar technology patents
Pfc LED driver capable of reducing flicker
InactiveUS20140084798A1reduce current ripple
Owner:WANG YEN HUI
Passivating agent for weakly acidic cadmium contaminated soil and application thereof
Owner:NANJING UNIV
Method for controlling transmission of sink nodes in wireless sensor network
Owner:SOUTHEAST UNIV
Coverage rate test processing method and device and coverage rate test server and system
Owner:ALIBABA GRP HLDG LTD
Input current waveform optimization topological structure of active third harmonic injection matrix converter
ActiveCN108390572Asuppress distortionReduce current ripple
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Novel large-wrapping sensing fiber and fiber sensing ring thereof
ActiveCN106950643AReduce motor vibrationgood temperature stability
Owner:HUBEI UNIV OF TECH
Direct-current side harmonic suppression system and method of 12-pulse rectification system on basis of interleaved Boost APFC circuit
InactiveCN103595231AReduce current rippleImprove current tracking effect
Owner:HARBIN INST OF TECH
Classification and recommendation of technical efficacy words
- Reduce motor vibration
- Reduce current ripple
Novel large-wrapping sensing fiber and fiber sensing ring thereof
ActiveCN106950643AReduce motor vibrationgood temperature stability
Owner:HUBEI UNIV OF TECH