Distributed State Estimation of Smart Grids with Packet Losses. Issue 4 (9th June 2017)

• Record Type: Journal Article
• Authors: Rana, Md Masud; Li, Li; Su, Steven W.
• Other Names: Cao Xianghui guestEditor.; Natalizio Enrico guestEditor.; Chen Jiming guestEditor.
• Is Part Of: Asian journal of control. Volume 19:Issue 4(2017)
• Page Start: 1306
• Page End: 1315
• Publication Date: 2017-06-09
• Subjects: Distributed state estimation -- Kalman filter -- packet losses -- smart grid; Automatic control -- Periodicals; Control theory -- Periodicals; 629.805
• DOI: 10.1002/asjc.1578
• Languages: English
• ISSNs: 1561-8625

Abstract

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.