Resilience of Electric Power Distribution Networks to N-1 Contingencies: The Case of Sekondi-Takoradi Metropolis
Journal Title: IOSR Journals (IOSR Journal of Electrical and Electronics Engineering) - Year 2017, Vol 12, Issue 4
Abstract
Contingency situation is an abnormal conditionthat do occur in an electric power distribution networks. It puts whole system or a part of the system under stress. It occurs due to sudden opening of a transmission line, generator tripping, sudden change in generation or sudden change in load value. Electric power networks are designed to withstand single contingency, thus (N-1) criterion. However, some events trigger others and cascading failures may occur. Therefore, not all contingencies are equal, and the number of components in a given system makes it prohibitive to evaluate all or a single contingency. The system is considered N-1 secure when a single contingency will not cause any system limits to be violated. Typical contingencies that can be experienced by an electric power distribution network consist of outages such as loss of feeders, distribution lines, or transformers. This study is an attempt to determine how secure the electric power distribution network within the Sekondi-Takoradi Metropolis is by modelling and simulations using PowerWorld Simulator version 19 GSO.
Authors and Affiliations
Godwin Diamenu, Erwin Normanyo
Keywords
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