Results 51 to 60 of about 178,348 (364)
The Journal of Engineering, 2018 This study makes a detailed analysis about the influence of AC system fault moments on commutation process of inverter valves and commutation failures. Taking into account the time-varying characteristic of the commutation voltage effective value after a
Jingqiu Zhang +4 more
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Observables of Angular Momentum as Observables on the Fedosov Quantized Sphere
, 2005 In this paper we construct the commutators of the Fedosov * (a generalization of the Moyal star product) on the phase space of S2. It is shown that this product obeys the standard angular momentum commutation relations in ordinary nonrelativistic quantum
Sparling, George, Tillman, Philip
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Adaptive firing angle compensation control for mitigating DC subsequent commutation failure
电力工程技术, 2022 Subsequent commutation failure of the high voltage direct current (HVDC) transmission system has a seriously negative impact on the stable operation of the AC-DC hybrid power grid.
YANG Chengxiang +5 more
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Proceedings of the American Mathematical Society, 1992 This paper deals with minimizing | | B − ( A X − X A ) | | p ||B - (AX - XA)|{|_p} , where A A and B B
openaire +2 more sources
Solid Harmonic Wavelet Bispectrum for Image Analysis
Advanced Science, EarlyView.The Solid Harmonic Wavelet Bispectrum (SHWB), a rotation‐ and translation‐invariant descriptor that captures higher‐order (phase) correlations in signals, is introduced. Combining wavelet scattering, bispectral analysis, and group theory, SHWB achieves interpretable, data‐efficient representations and demonstrates competitive performance across texture,
Alex Brown +3 more
wiley +1 more source
Full-Bridge Converter with Soft Commutation in All Load Range
Глобальная ядерная безопасность, 2022 The development of converters with soft commutation improves issues of radiation interference and electromagnetic compatibility, reduce weight and size parameters by increasing efficiency and conversion frequency.
S. A. Baran, G. P. Smetankin
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Scrambling‐Enhanced Quantum Battery Charging in Black Hole Analogues
Advanced Science, EarlyView.By employing a black‐hole‐analog quantum battery constructed from a position‐dependent XY model, its dynamical behavior is investigated through a quench of the scrambling parameter. It is systematically quantified that how the simulated scrambling improves key performance metrics‐namely, stored energy, peak power, and charging time‐thereby offering a ...
Zhilong Liu +3 more
wiley +1 more source
Interaction influence of harmonics in MIDC transmission systems
The Journal of Engineering, 2019 Owing to the particular distribution of energy and load, the high-voltage direct current transmission system has been greatly developed in China. A number of areas have formed the multi-infeed direct current (MIDC) transmission systems.
Wang Ling +3 more
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Reliability analysis and reliable operation of three-level ANPC inverter
Frontiers in Energy Research, 2023 The three-level active neutral-point-clamped (3L-ANPC) inverters have been widely used in medium-voltage high-power electrical drives. The purpose of this paper is to achieve the reliable operation for 3L-ANPC inverters by reliability analysis and ...
Xiaolin Zheng +4 more
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Simulation of commutation process DC traction motor of quarry dump truck [PDF]
Омский научный вестник, 2020 The article considers a nonlinear multiple regression model based on which a model of the commutation process of the DC traction motor of a quarry dump truck.
V. V. Kharlamov +2 more
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