Modelling the Interconnected Synchronous Generators and its State Estimations

IEEE Access

卷:6

Bong Jun Choi¹  Li Li²  Steven W. Su²  Md Masud Rana² 

[1] Department of Computer Science, The State University of New York, Incheon, South Korea;

[2] Faculty of Engineering and Information Technology, University of Technology Sydney, Broadway, NSW, Australia;

关键词: Automatic voltage regulator;    convergence analysis;    distributed estimation;    power systems;    synchronous generators;   

DOI  :  10.1109/ACCESS.2018.2833072

来源: DOAJ

【 摘 要 】

In contrast to the traditional centralized power system state estimation approaches, this paper investigates the optimal filtering problem for distributed dynamic systems. Particularly, the interconnected synchronous generators are modeled as a state-space linear equation where sensors are deployed to obtain measurements. As the synchronous generator states are unknown, the estimation is required to know the operating conditions of large-scale power networks. Availability of the system states gives the designer an accurate picture of power networks to avoid blackouts. Basically, the proposed algorithm is based on the minimization of the mean squared estimation error, and the optimal gain is determined by exchanging information with their neighboring estimators. Afterward, the convergence of the developed algorithm is proved so that it can be applied to real-time applications in modern smart grids. Simulation results demonstrate the efficacy of the developed algorithm.

【 授权许可】

Unknown