Conceptual design of Wide Area Protection in transmission system

Conventional protection system uses only electric signal from each device to detect fault and protect equipment. Thus, there are some weak points in the protection system. Wide Area Protection system (WAPs) can improve the performance of protection system because it uses the communication and transferred data between IED-relays to identify fault. This paper proposes the conceptual design structure of the WAPs, zone partitioning and detecting algorithm in order to improve the performance of the protection system. Analysis of the case study shows that the proposed concept of WAPs can eliminate some weaknesses of conventional protection system in transmission system such as reduce tripping equipment and outage area.