Abstract

This paper proposes a new Multi Area State Estimation (MASE) approach, which is suitable for the power system networks that can be divided into several sub-areas. In this approach, the Central Coordinator (CC) utilizes results of one extended sub-area state estimator to estimate the bus angles of the other sub-areas. It has been demonstrated that, with this approach, there is no requirement to share the topology information among the sub-areas and from sub-areas to the central coordinator. Also, with the lesser data exchange, communication bandwidth requirement will reduce. The effectiveness of the proposed method has been demonstrated on IEEE30 bus system and 246-Bus reduced Northern Regional Power Grid (NRPG) Indian system.

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