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Overload prevention system to improve intermittent load capacity of electric drive applications
US9130368B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9130368-B2 |
| Application number | US-201313767322-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 14, 2013 |
| Priority date | Feb 14, 2013 |
| Publication date | Sep 8, 2015 |
| Grant date | Sep 8, 2015 |
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Abstract
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An overload prevention system and method for an electric circuit having a plurality of components is disclosed, where each component has a set of pre-computed parameters. For each component, monitored parameters are observed; a limited value is computed using the pre-computed and monitored parameters; and it is determined if the limited value reached a limit. If the limited value reaches the limit; the system limits one of the monitored parameters. Pre-computed parameters can include time constant and rated current; monitored parameters can include current; and limited value can be component temperature. A time constant, rated current and rated temperature can be pre-computed such that the temperature stays at or below the rated temperature when the current is substantially equal to the rated current. Per unit values can also be used such that per unit temperature stays at or below unity when per unit current is substantially equal to unity.
First claim
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We claim: 1. An overload prevention method for an electric circuit having a plurality of components including a first component and a second component, the first component having a first set of pre-computed parameters, and the second component having a second set of pre-computed parameters, the overload prevention method comprising: observing, by a sensor device, a first set of monitored parameters for the first component; observing, by the sensor device, a second set of monitor…
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Frequently asked questions
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- What does patent US9130368B2 cover?
- An overload prevention system and method for an electric circuit having a plurality of components is disclosed, where each component has a set of pre-computed parameters. For each component, monitored parameters are observed; a limited value is computed using the pre-computed and monitored parameters; and it is determined if the limited value reached a limit. If the limited value reaches the li…
- Who is the assignee on this patent?
- Deere & Co
- What technology area does this patent fall under?
- Primary CPC classification H02H7/08. Mapped technology areas include Electricity.
- 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).