Event-based Cubature Kalman Filter for Smart Grid Subject to Communication Constraint

Sen Li, Zhen Li, Jian Li, Qinglin Wang, Zhuoyue Song, Zhen Chen, Yongzhi Sheng, Xiangdong Liu, Yang Liu

科研成果: 期刊稿件文章同行评审

14 引用 (Scopus)

摘要

Accurate real-time estimation plays an important role in smart grids. Although various filtering algorithms, such as unscented Kalman filter (UKF), have been proposed for phasor measurement unit (PMU), they occupy huge communication bandwidth without specific concern, which puts heavy burden on the communication network especially when wireless communications are applied. In order to relief this burden, the event-based cubature Kalman filter (EBCKF) is proposed based on event-based schemes in this paper. The event-based strategy guarantees that only the observations containing innovational information are transmitted, and cubature Kalman filter (CKF), which is based on the spherical cubature integration, provides more accurate estimation than UKF. Besides, the design-oriented communication rate is provided corresponding to the event-based strategy design. The proposed filter can effectively reduce the communication rate while ensuring the accuracy of filtering. Finally, the standard IEEE 39-bus system is utilized to verify the feasibility and performance of the proposed method.

源语言英语
页(从-至)49-54
页数6
期刊IFAC-PapersOnLine
50
1
DOI
出版状态已出版 - 7月 2017

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