Title :
Multi Area State Estimation using area slack bus angle adjustment with minimal data exchange
Author :
Sharma, Ashok ; Srivastava, S.C. ; Chakrabarti, Subit
Author_Institution :
Dept. of Electr. Eng., Indian Inst. of Technol. Kanpur, Kanpur, India
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.
Keywords :
power system state estimation; IEEE 30 bus system; MASE; area slack bus angle adjustment; bus angle estimation; central coordinator; minimal data exchange; multiarea state estimation; power system network; reduced northern regional power grid Indian system; subarea state estimator; topology information; Covariance matrices; Measurement uncertainty; Power measurement; Power systems; State estimation; Topology; Vectors; Multi area state estimation; reduced data exchange; slack bus angle adjustment; weighted least squares;
Conference_Titel :
Power and Energy Society General Meeting (PES), 2013 IEEE
Conference_Location :
Vancouver, BC
DOI :
10.1109/PESMG.2013.6672223
