Results 21 to 30 of about 73,525 (314)
Small signal model and DC side low frequency oscillation analysis of AC/DC distribution network
电力工程技术, 2022 With the rapid development and wide range application of AC/DC distribution network,its stability has also become the focus. The low-frequency oscillation at the DC side in the commissioning stage of an AC/DC distribution network project is analyzed ...
CHEN Qing +5 more
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Nihon Kikai Gakkai ronbunshu, 2014 The bending stiffness at the stepped cross-section of a rotor decreases in accordance with the elasticity in the face of the cross-section. This study proposes a method to deal with this decrease in bending stiffness in one dimensional (1D) beam modeling.
Nobuaki NAGAE, Tomonobu GOTO
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A Comprehensive Investigation on High-Frequency Oscillation in DC Microgrid
IEEE Access, 2021 This paper presents the small-signal stability performance of a dc microgrid (MG) and investigates the interactions between the converter controllers by studying the critical modes.
Mohammad Habibullah +3 more
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Energies, 2021 Power systems may encounter disturbances during operation as a result of switching of various components, etc. Such perturbations include transformer tap-changing action, load variations, and line outages due to various types of faults of which an earth ...
Ewaoche John Okampo +2 more
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Analysis of Eigenvalue Correction Applied to Biometrics [PDF]
, 2009 Eigenvalue estimation plays an important role in biometrics. However, if the number of samples is limited, estimates are significantly biased. In this article we analyse the influence of this bias on the error rates of PCA/LDA based verification systems, using both synthetic data with realistic parameters and real biometric data.
Hendrikse, Anne +3 more
openaire +1 more source
Nonlinearizing two-parameter eigenvalue problems
, 2021 We investigate a technique to transform a linear two-parameter eigenvalue problem, into a nonlinear eigenvalue problem (NEP). The transformation stems from an elimination of one of the equations in the two-parameter eigenvalue problem, by considering it ...
Ringh, Emil,, Jarlebring, Elias,
core +1 more source
Nihon Kikai Gakkai ronbunshu, 2015 This study will address the improvement of the analytical accuracy of a lateral vibration analysis model for rotor-dynamics. In case of predicting the lateral vibration of a rotor with disc elements fixed on the shaft by the interference fit, the ...
Nobuaki NAGAE +3 more
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Flight Stability of Rigid Wing Airborne Wind Energy Systems
Energies, 2021 The flight mechanics of rigid wing Airborne Wind Energy Systems (AWESs) is fundamentally different from the one of conventional aircrafts. The presence of the tether largely impacts the system dynamics, making the flying craft to experience forces which ...
Filippo Trevisi +2 more
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Energies, 2020 Active power outputs of a wind farm connected to a weak power grid greatly affect the stability of grid-connected voltage source converter (VSC) systems.
Yafeng Hao +5 more
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Stability limit of double-fed induction generator system connected to weak grid
电力工程技术, 2022 With large-scale wind turbines connected to the power system, the power grid strength becomes weak, leading to unstability problem of wind turbines in DC voltage control timescale.
HUANG Yunhui +5 more
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