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Frequency stability of a wavelength meter and applications to laser frequency stabilization [PDF]
Applied Optics, 2015 Interferometric wavelength meters have attained frequency resolutions down to the MHz range. In particular, Fizeau interferometers, which have no moving parts, are becoming a popular tool for laser characterization and stabilization. In this article, we characterize such a wavelength meter using an ultra-stable laser in terms of relative frequency ...
Saleh, Khaldoun +4 more
openaire +7 more sources
High-power sub-terahertz source with a record frequency stability at up to 1 Hz. [PDF]
Sci Rep, 2018 Many state-of-the-art fundamental and industrial projects need the use of terahertz radiation with high power and small linewidth. Gyrotrons as radiation sources provide the desired level of power in the sub-THz and THz frequency range, but have ...
Fokin A +7 more
europepmc +2 more sources
Frequency Stability of Synchronous Machines and Grid-Forming Power Converters [PDF]
IEEE Journal of Emerging and Selected Topics in Power Electronics, 2020 An inevitable consequence of the global power system transition toward nearly 100% renewable-based generation is the loss of conventional bulk generation by synchronous machines (SMs), their inertia, and accompanying frequency- and voltage-control ...
A. Tayyebi +4 more
semanticscholar +1 more source
Improvement of Power System Frequency Stability With Universal Grid-Forming Battery Energy Storages
IEEE Access, 2023 Large-scale integration of inverter-based renewable generation leads to the reduction of power systems’ natural inertia. Therefore, the dynamics of the future power systems will be more sensitive than in the traditional systems with high-inertia rotating
H. Laaksonen
semanticscholar +1 more source
Electronics, 2023 The high penetration of inverter-fed renewable energy sources (RESs) in modern energy systems has led to a reduction in the system’s inertial response. This reduction in the rotational inertial response is associated with synchronous generation and might
Saad Alqahtani +3 more
semanticscholar +1 more source
Conditions for Regional Frequency Stability in Power System Scheduling—Part I: Theory
IEEE Transactions on Power Systems, 2021 This paper considers the phenomenon of distinct regional frequencies recently observed in some power systems. First, a reduced-order mathematical model describing this behaviour is developed.
Luis Badesa, Fei Teng, G. Strbac
semanticscholar +1 more source
IEEE Access, 2021 The low system inertia and the high sensitivity to load and generation fluctuations represent the main challenges for future ambitious plans of modern power systems accompanied by high penetrations levels of the renewable energy sources (RESs). Therefore,
A. Elmelegi +5 more
semanticscholar +1 more source
IEEE Transactions on Power Systems, 2021 In Part I of this paper we have introduced the closed-form conditions for guaranteeing regional frequency stability in a power system. Here we propose a methodology to represent these conditions in the form of linear constraints and demonstrate their ...
Luis Badesa, Fei Teng, G. Strbac
semanticscholar +1 more source
Frequency Stability Issues and Research Opportunities in Converter Dominated Power System
Energies, 2021 Stable power supply has become a crucial thing in the current era of technology and automation. Although the power system has multiple stability issues and causes, frequency fluctuation plays a vital role in normal operation, whereby a system with ...
A. Shrestha, F. Gonzalez-Longatt
semanticscholar +1 more source
IEEE Journal on Emerging and Selected Topics in Circuits and Systems, 2021 Inverter-based standalone power systems (ISPSs), with limited inertia/damping, are prone to significant changes in frequency indicators encompassing frequency deviation and rate of change of frequency (RoCoF), which can easily exceed the pertinent relay ...
L. Xiong +3 more
semanticscholar +1 more source