Results 21 to 30 of about 10,237 (266)
Zhongguo dianli, 2021 A large amount of renewable energy has changed the damping characteristics of the power system through the access of power electronic equipment, resulting in the prominent problem of low-frequency oscillation of synchronous generators, posing a threat to
Yi ZHANG +5 more
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The Journal of Engineering, 2019 As China's AC transmission system with series capacitor and HVDC transmission technology are widely used in long-distance and large-scale power transmission network, sub-synchronous resonance (SSR) problem becomes more prominent.
Juan Li +3 more
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Energies, 2018 The inter-turn short circuit is a common fault in the synchronous generator. This fault is not easily detected at early stage. However, with the development of the fault, it will pose a threat to the safe operation of the generator.
Luo Wang, Yonggang Li, Junqing Li
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Applications of Modelling and Simulation, 2021 In this paper, a squirrel cage induction motor was used as the prime mover of a permanent magnet synchronous electric generator to achieve a motor-generator set purposed for internal combustion (IC) engine replacement.
Sulemana Abdul Razak, Erwin Normanyo
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Generalized Synchronization Trees [PDF]
, 2014 This paper develops a generalized theory of synchronization trees. In their original formulation, synchronization trees modeled the behavior of nondeterministic discrete-time reactive systems and served as the foundational theory upon which process algebra was based.
James Ferlez +2 more
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Energy Reports, 2022 Based on the analysis of the operation characteristics of photovoltaic cells, a novel virtual synchronous generator adaptive power regulation strategy for two-stage three-phase photovoltaic system with high permeability of clean energy is proposed.
Bo Zhang, Peisen Zhao, Jiale Zhao
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Fractional-Order Virtual Synchronous Generator
IEEE Transactions on Power Electronics, 2023 In this letter, a novel control scheme is proposed by combining the fractional-order control and the virtual synchronous generator, whereby more degrees of freedom are involved in the controller design. A well-damped power control without oscillations is achieved. At the same time, a significant improvement in the inertial effect is attained.
Yun Yu +5 more
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Molecular bases of circadian magnesium rhythms across eukaryotes
FEBS Letters, EarlyView.Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
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Energies, 2013 This paper presents a novel type of variable speed wind turbine with a new drive train different from the variable speed wind turbine commonly used nowadays.
Rui You +3 more
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Energy Reports, 2022 The utilization of wind energy can alleviate the problems of fossil energy shortage and environmental pollution. As the core unit of wind power generation systems, improving the design and manufacturing technology of permanent magnet synchronous ...
Ran Zhang, Lianxue Gao
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