Method and device for controlling three-phase motor
US-2024014757-A1 · Jan 11, 2024 · US
Method and apparatus for driving alternating-current motor
US8963459B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8963459-B2 |
| Application number | US-201213483372-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 30, 2012 |
| Priority date | Sep 7, 2011 |
| Publication date | Feb 24, 2015 |
| Grant date | Feb 24, 2015 |
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Abstract
Official abstract text for this publication.
A method of driving an alternating-current (AC) motor while periodically obtaining a rotator angle of the AC motor. The method includes: (a) driving the AC motor by a d S -axis voltage, which is a voltage for an exciting current in a stationary reference frame, and a q S -axis voltage, which is a voltage for generating a rotational force in the stationary reference frame, while sequentially applying different d S -axis voltages and different q S -axis voltages to the AC motor in a control injection period; and (b) obtaining a rotator angle by a d S -axis voltage value, a q S -axis voltage value, a d S -axis current value, and a q S -axis current value in the control injection period.
First claim
Opening claim text (preview).
What is claimed is: 1. A method of driving an alternating-current (AC) motor, the method comprising: (a) driving the AC motor by a d S -axis voltage, which is a voltage for an exciting current in a stationary reference frame, and a q S -axis voltage, which is a voltage for generating a rotational force in the stationary reference frame, while applying different d S -axis voltages and different q S -axis voltages to the AC motor in a control injection period; and (b) obtaining a…
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Electricity · mapped topic
Electricity · mapped topic
- H02P6/183Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US8963459B2 cover?
- A method of driving an alternating-current (AC) motor while periodically obtaining a rotator angle of the AC motor. The method includes: (a) driving the AC motor by a d S -axis voltage, which is a voltage for an exciting current in a stationary reference frame, and a q S -axis voltage, which is a voltage for generating a rotational force in the stationary reference frame, while sequentially app…
- Who is the assignee on this patent?
- Kim Sang-Min, Kim Sung-Min, Sul Seung-Ki, and 5 more
- 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 Feb 24 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).