Research on a Real-time Dynamic Monitoring System based on PMU
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DOI: 10.23977/icmmct.2019.62150
Corresponding Author
Liu Wei
ABSTRACT
With the development of real-time dynamic monitoring system, each regional dynamic monitoring system is relatively independent, and has its own photo independent scheduling center. To accommodate this partition management model, state estimation should use a distributed parallel algorithm. Based on the dynamic spread algorithm and the parallel algorithm of lapped distribution, a new dynamic state estimation algorithm for distributed real-time dynamic monitoring system based on phasor measurement unit (PMU) is proposed. The algorithm uses a small number of PMU measurement points to truly realize the parallel computing of each subsystem, avoiding the process of serial waiting by the original algorithm. Combined with the measurement data preprocessing and the comparison of the matrix weighting, the calculation speed is accelerated and the numerical precision and stability are improved. Finally, the simulation results of IEEE 14 nodes are given, and the effectiveness and superiority of the algorithm are verified.
KEYWORDS
Phasor Measurement Unit, Dynamic State Estimation, Distributed Processing, Dynamic Monitoring System