Out-of-step protection of synchronous generator in multi-machine power network by utilizing local variable
One of the major concerns of engineers in power networks is out-of-step protection applied to the synchronous generators. Conventional out-of-step protection methods utilize a distance relay with blinders in the R–X plane and a timer. Many problems about the setting and incorrect operation of these...
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| Format: | Article |
| Language: | fas |
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Semnan University
2017-12-01
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| Series: | مجله مدل سازی در مهندسی |
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| Online Access: | https://modelling.semnan.ac.ir/article_2682_bfa3bb5c7f2848fc43cbe4aa10f01ef2.pdf |
| Summary: | One of the major concerns of engineers in power networks is out-of-step protection applied to the synchronous generators. Conventional out-of-step protection methods utilize a distance relay with blinders in the R–X plane and a timer. Many problems about the setting and incorrect operation of these relays has been reported in literature. Therefore, in order to overcome, some of the difficulties associated with the previous techniques, a new out-of-step detection algorithm, based on the local measurements of the generator in multi-machine power network, has been introduced in this paper. The measured angular velocity and acceleration data from active power of the machine are used to detect out-of-step conditions. The results of the simulation studies show that the application of the proposed technique is straightforward and can be directly applied to a multi-machine power network without any need to cumbersome methods of network reduction. Furthermore, the results verify the effectiveness, speed and sensitivity of the proposed method. |
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| ISSN: | 2008-4854 2783-2538 |