System for shifting an analogical output signal of a sensor device, sensor-bearing unit, shifter module and shifting method
US-2015345989-A1 · Dec 3, 2015 · US
System and method of speed detection in an AC induction machine
US9130499B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9130499-B2 |
| Application number | US-201314022614-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 10, 2013 |
| Priority date | Jun 16, 2010 |
| Publication date | Sep 8, 2015 |
| Grant date | Sep 8, 2015 |
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Abstract
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A system and method for determining rotor speed of an AC induction machine is disclosed. The system is programmed to estimate a rotor speed of the induction machine according to a linear speed estimation algorithm and based on name plate information (NPI) of the induction machine and parameters of the AC induction machine during operation thereof. The rotor speed estimation system is also programmed to estimate a rotor speed of the AC induction machine according to a frequency-domain signal processing algorithm and determine if the rotor speed estimated thereby is valid. If the rotor speed estimated by the frequency-domain signal processing algorithm is valid, then a tuned rotor speed of the AC induction machine is estimated according to the linear speed estimation algorithm and based, in part, on the rotor speed estimated by the frequency-domain signal processing algorithm.
First claim
Opening claim text (preview).
What is claimed is: 1. A rotor speed estimation system for estimating a rotor speed of an AC induction machine, the rotor speed estimation system comprising: a processor programmed to: receive an input from a data acquisition device or a plurality of sensors, the input comprising parameters of the AC induction machine during operation thereof, with the parameters comprising voltage and frequency values of power input to the AC induction machine and a load value of the AC inductio…
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- G01P3/489Primary
Physics · mapped topic
- H02P27/047Primary
Electricity · mapped topic
Electricity · mapped topic
Physics · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US9130499B2 cover?
- A system and method for determining rotor speed of an AC induction machine is disclosed. The system is programmed to estimate a rotor speed of the induction machine according to a linear speed estimation algorithm and based on name plate information (NPI) of the induction machine and parameters of the AC induction machine during operation thereof. The rotor speed estimation system is also progr…
- Who is the assignee on this patent?
- Eaton Corp
- What technology area does this patent fall under?
- Primary CPC classification G01P3/489. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Sep 08 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).