Robust Optimal Virtual Inertia Control for Microgrid Frequency Regulation Considering High Renewable Energy Penetration

Maaruf, Muhammad; El-Férik, Sami; Al–Ismail, Fahad Saleh; Khalid, Muhammad

doi:10.1109/icrera55966.2022.9922718

Cited by 4 publications

(1 citation statement)

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“…Meanwhile, faced with increasing frequency security and stability challenges for power systems, modern control strategies of IBRs have been developed to provide inertia and frequency support to the grid. To achieve the fast frequency response, RoCoF tends to be used as one of the input signals for these modern control techniques, e.g., virtual inertia control [16,17]. Moreover, RoCoF can feed to the newly developed protections, e.g., RoCoF relay [18,19].…”

Section: Introduction 1motivation and Backgroundmentioning

confidence: 99%

Review of RoCoF Estimation Techniques for Low-Inertia Power Systems

Deng

Wang

et al. 2023

Energies

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As the traditional generation is gradually replaced by inverter-based resources, a lack of rotational inertia is now a common issue of modern power systems, which leads to an increasingly larger rate of change of frequency (RoCoF) following contingencies and may result in frequency collapse. As a crucial index of the frequency security and stability of power systems, the accurate estimation of the RoCoF can be a foundation for the development of advanced operations and control techniques of the future power system. This paper firstly analyzes the role of the RoCoF in typical blackouts occurring in recent years and discusses the physical and numerical nature of the RoCoF; then, by introducing the frequency spatial distribution of the power system, the paper discusses the concept of the “center” RoCoF that can present the frequency security and stability of the entire system. The estimation and prediction techniques of the maximal power system RoCoF following a contingency and the existing real-time tracking techniques of the power system RoCoF are comprehensively reviewed. Finally, the open questions and related research topics of the RoCoF estimation are discussed.

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