| Autor: |
Ahsan, Md. Quamrul, Chowdhury, Abdul H., Subrina, Samia, Uddin, Md. Forkan, Roy, Apratim, Islam, Md. Zahurul |
| Předmět: |
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| Zdroj: |
International Transactions on Electrical Energy Systems; Sep2020, Vol. 30 Issue 9, p1-18, 18p |
| Abstrakt: |
Summary: To avoid a long radial transmission line and the difficulties of right of way, the bulk consumer prefers to get the electric supply directly from its nearest point of the grid through loop‐in and loop‐out (LILO) connection. This affects the reliability of a transmission corridor. A small percentage of decrease in the reliability of a transmission corridor can create a significant impact on global reliability of a grid. This paper develops reliability models for different configurations of LILO connection based on the basic network reduction approach and probability laws. The developed models can easily incorporate any change in the physical network in reliability calculation. The models are applied to a real power system with a view to investigate the impact of LILO connection on the reliability of a transmission corridor. The investigation includes different configurations of LILO connection, different number of LILO consumers, and different types of LILO lines and also the effect on the reliability of a load bus in the corridor. The study shows that the reliability of a transmission corridor with LILO connection deteriorates than its base counterpart and it becomes worse as the number of circuits broken to feed consumer's substation is increased. The grid reliability degrades most if underground cable is used in the LILO connection. The results should prove useful for the electric utility. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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