Method and device for controlling three-phase motor
US-2024014757-A1 · Jan 11, 2024 · US
Apparatus and method for measuring position deviation of rotor of permanent magnet synchronous motor
US8941339B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8941339-B2 |
| Application number | US-201313846633-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 18, 2013 |
| Priority date | Nov 26, 2012 |
| Publication date | Jan 27, 2015 |
| Grant date | Jan 27, 2015 |
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Abstract
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An apparatus for measuring a position deviation of a rotor of a permanent magnet synchronous motor includes a control unit, a power transformation unit, a rotor position estimator and a calculation unit. The control unit receives a d-axis DC voltage signal and a q-axis AC voltage signal and receives an initial value of the rotor position and a high-frequency signal to output a three-phase command signal. The power transformation unit receives the three-phase command signal and outputs a three-phase control signal for controlling the motor. The rotor position estimator receives a three-phase current feedback signal corresponding to an operation of the motor and generates an estimation value of the rotor position. The calculation unit performs calculation to the initial value and the estimation value to generate a deviation value of the rotor position. Moreover, a method for measuring the position deviation is also disclosed herein.
First claim
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What is claimed is: 1. An apparatus for measuring a position deviation of a rotor of a permanent magnet synchronous motor (PMSM), comprising: a control unit configured for receiving a d-axis DC voltage signal and a q-axis AC voltage signal of a rotary coordinate system and configured for receiving an initial value of the rotor position and a high-frequency signal to output a three-phase command signal; a power transformation unit configured for receiving the three-phase command…
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- What does patent US8941339B2 cover?
- An apparatus for measuring a position deviation of a rotor of a permanent magnet synchronous motor includes a control unit, a power transformation unit, a rotor position estimator and a calculation unit. The control unit receives a d-axis DC voltage signal and a q-axis AC voltage signal and receives an initial value of the rotor position and a high-frequency signal to output a three-phase comma…
- Who is the assignee on this patent?
- Delta Electronics Inc
- What technology area does this patent fall under?
- Primary CPC classification H02P6/183. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jan 27 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).