Wide-Area Monitoring Using PMU Technology for Real-Time Stability Assessment of Saudi Arabia's Smart Energy Grid

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@article{1722493,
      author = {Hatel Peera Shaik},
      title = {Wide-Area Monitoring Using PMU Technology for Real-Time Stability Assessment of Saudi Arabia's Smart Energy Grid},
      journal = {Iconic Research And Engineering Journals},
      year = {2026},
      volume = {10},
      number = {2},
      pages = {2361-2373},
      issn = {2456-8880},
      url = {https://www.irejournals.com/formatedpaper/1722493.pdf},
      abstract = {Saudi Arabia is transitioning toward a more diversified electricity mix, integrating large-scale solar, wind, storage, digital substations, and advanced control alongside a substantial synchronous generation fleet. This evolution increases the importance of measurements capable of capturing grid dynamics at the time scale of electromechanical disturbances, rather than relying solely on the slower operating state observed by conventional supervisory control and data acquisition (SCADA) systems. This review assesses the role of phasor measurement unit (PMU)-based wide-area monitoring systems (WAMS) for live stability assessment in Saudi Arabia's smart energy grid. Rather than presenting an implementation report, the study uses a structured review of literature published from 2020 to 2025, synthesizing evidence across synchrophasor architecture, frequency and inertia monitoring, transient and angular stability, voltage regulation, oscillation detection, event analytics, data engineering, and renewable-rich grid operation. The review is motivated by Saudi-specific concerns identified in recent studies, particularly the sensitivity of frequency response to increasing inverter-based generation and the necessity to maintain reliability as renewable capacity expands. The evidence demonstrates that PMU-based monitoring is most effective when implemented as an operational decision-support layer that supplements SCADA, includes strong data-quality controls, and translates synchronized measurements into interpretableindicators such as frequency nadir, rate of change of frequency, inter-area angle separation, damping ratio, voltage recovery, and event location. A Saudi-oriented architecture is proposed, linking geographically distributed PMUs to redundant phasor data concentrators, streaming analytics, historian services, and control-room applications. The review further identifies research gaps in public PMU deployment information, low-inertia thresholds, hybrid SCADA-PMU system estimation, cybersecurity, and validation by Saudi disturbance records. A staged research agenda is recommended to progress from observability studies and offline replay toward operator-validated real-time stability assessment.},
      keywords = {wide-area monitoring system, phasor measurement unit, synchrophasor, Saudi Arabia, smart grid, real-time stability, frequency stability, voltage stability, oscillation monitoring, renewable integration},
      month = {August},
      doi = {https://doi.org/10.64388/IREV10I2-1722493}
  }