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Distributed State Estimation of Smart Grids with Packet Losses
Author(s) -
Rana Md Masud,
Li Li,
Su Steven W.
Publication year - 2017
Publication title -
asian journal of control
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.769
H-Index - 53
eISSN - 1934-6093
pISSN - 1561-8625
DOI - 10.1002/asjc.1578
Subject(s) - microgrid , weighting , network packet , smart grid , context (archaeology) , estimation , computer science , renewable energy , state (computer science) , electricity , mathematical optimization , real time computing , distributed computing , engineering , algorithm , computer network , mathematics , medicine , paleontology , systems engineering , biology , electrical engineering , radiology
Abstract This paper explores the problem of distributed state estimation including packet losses for the environment‐friendly renewable microgrid incorporating electricity generating circuits. The problem is becoming critical due to the global warming, increasing green house gas emissions, and practical infeasibility with computational burden of the large‐scale centralized power system monitoring. To address the impending problem, a novel distributed state estimation algorithm is derived in the context of smart grids. Specifically, after modelling the microgrid, this paper proposes a local state estimation algorithm considering packet losses. Then a novel optimal weighting factor calculation method for the global state estimation is proposed. Particularly, it can automatically adjust the optimal weighting factors for different sensor measurements based on the observation. Simulations results show that the desired state estimation accuracy is achieved.