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Method and system for disconnecting a generator from a power system
US8970071B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8970071-B2 |
| Application number | US-201313788642-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 7, 2013 |
| Priority date | Sep 9, 2010 |
| Publication date | Mar 3, 2015 |
| Grant date | Mar 3, 2015 |
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Abstract
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A method for disconnecting a generator from a power system when the generator and the thereto connected power system are non-synchronized. The method includes the steps of: determining that there is a loss of synchronization between the generator and the power system, which loss of synchronization provides an amplitude variation of an electrical parameter associated with the generator. The method further includes determining when a minimum amplitude of the electrical parameter will occur, wherein when the occurrence of the minimum amplitude has been predicted, providing a command signal for disconnecting the generator from the power system, wherein the command signal is provided prior to the minimum amplitude of the electrical parameter is attained, and disconnecting the generator from the power system approximately when the determined minimum amplitude of the electrical parameter occurs. It is also presented a protection system for a generator in a power system.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for disconnecting a generator from a power system when the generator and the power system connected thereto are non-synchronized, the method comprises the steps of: measuring an electrical parameter of a stator of the generator with a voltage and current measuring device; transmitting an output signal from the voltage and current measuring device to a processing unit, the processing unit: determining a loss of synchronization between the generat…
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Frequently asked questions
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- What does patent US8970071B2 cover?
- A method for disconnecting a generator from a power system when the generator and the thereto connected power system are non-synchronized. The method includes the steps of: determining that there is a loss of synchronization between the generator and the power system, which loss of synchronization provides an amplitude variation of an electrical parameter associated with the generator. The meth…
- Who is the assignee on this patent?
- Brncic Ivo, Forsman Soren, Abb Technology Ag
- What technology area does this patent fall under?
- Primary CPC classification H02H3/021. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 03 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).