2017/08/15 by Robert C. Qiu, Robert Qiu, Qiu, Robert +8
Computer Science · Economics, Econometrics and Finance · Engineering · Mathematics · #Applications (stat.AP) #Complex Systems and Time Series Analysis #Distributed and Parallel Computing Systems #FOS: Computer and information sciences #Sparse and Compressive Sensing Techniques #stat.AP
paper · pdf · doi:10.48550/arxiv.1708.04935
Book chapter#23 for the book "Transportation and Power Grid in Smart Cities: Communication Networks and Services". arXiv admin note: text overlap with arXiv:1302.0885 by other authors
arxiv created 2017/08/15 · openalex publication_date 2017/08/15 · arxiv updated 2017/08/17 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
A cornerstone of the smart grid is the advanced monitorability on its assets and operations. Increasingly pervasive installation of the phasor measurement units (PMUs) allows the so-called synchrophasor measurements to be taken roughly 100 times faster than the legacy supervisory control and data acquisition (SCADA) measurements, time-stamped using the global positioning system (GPS) signals to capture the grid dynamics. On the other hand, the availability of low-latency two-way communication networks will pave the way to high-precision real-time grid state estimation and detection, remedial actions upon network instability, and accurate risk analysis and post-event assessment for failure prevention. In this chapter, we firstly modelling spatio-temporal PMU data in large scale grids as random matrix sequences. Secondly, some basic principles of random matrix theory (RMT), such as asymptotic spectrum laws, transforms, convergence rate and free probability, are introduced briefly in order to the better understanding and application of RMT technologies. Lastly, the case studies based on synthetic data and real data are developed to evaluate the performance of the RMT-based schemes in different application scenarios (i.e., state evaluation and situation awareness).