N. Bayati, R. Mohammadi Chabanloo, S. H. H. Sadeghi


In this article, Directional Over-current Relay (DOCR) Coordination was performed considering various network topologies and the non-standard curve for the overcurrent relay. In practice, usually the network topology changes by switching lines and the overcurrent relay coordination might be removed. The purpose of this article is to maintain relay coordination while the network topology is changed and to get the best setting and reduce the operating time of relays. For coordinating and setting overcurrent relays, a hybrid TLBO method was used which combined Teaching-Learning Based Optimization (TLBO) and LP. Four variables were used to set overcurrent relays and the algorithm obtained specific settings for each relay. The proposed algorithm was also compared with the conventional methods. The results show that the TLBO-LP method and using non-standard curve will improve the operating time of overcurrent relay, increase coordination between them and maintain the DOCR coordination by changing the network topology and switching lines.

Coordinación óptima de redes direccionales de sobrecorriente considerando curvas no estándar y topologías de redes múltiples que utilizan tlbo-lp


En este artículo, la coordinación de redes direccionales de sobrecorriente se realizó considerando varias topologías de red y la curva no estándar para la red de sobrecorriente. En la práctica, por lo general, la topología red cambia con la línea y se puede eliminar la coordinación de red de sobrecorriente. El propósito de este artículo es mantener la coordinación de las redes mientras se cambia la topología de la red y obtener una mejor configuración para así reducir el tiempo de funcionamiento de las redes. Para coordinar y configurar las redes de sobrecorriente, se utilizó un método híbrido que combinó la optimización basada en enseñanza-aprendizaje. Se utilizaron cuatro variables para configurar las redes de sobrecorriente y un algoritmo que obtuvo ajustes específicos para cada red. El algoritmo propuesto también se comparó con los métodos convencionales. Los resultados muestran que el método  y el uso de curvas no estándar mejorará el tiempo de operación de redes de sobrecorriente, aumentará la coordinación entre ellos y mantendrán la coordinación al cambiar la topología de la red y las líneas de conmutación.



Palabras clave

DOCR, TLBO, Multiple Network Topologies, Coordination, Optimization. Topologías de redes múltiples, coordinación, optimización.

Texto completo:



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