Results 21 to 30 of about 68,031 (152)
Study on Harmonic Impedance Estimation and Harmonic Contribution Evaluation Index
IEEE Access, 2020 Harmonic impedance estimation and suitable evaluation index selection are the key steps of harmonic contribution evaluation. Most of the traditional harmonic impedance estimation methods are only applicable to the scenario, where the background harmonic ...
Ziteng Liu +3 more
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IEEE Access, 2019 This paper focuses on the shielding effectiveness (SE) prediction of the periodic aperture array on an infinite conductor plane against a plane electromagnetic wave with its wavelength much larger than the size of a unit cell of the array.
Wanxin Bai +4 more
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High current density electroreduction of CO2 into formate with tin oxide nanospheres
Scientific Reports, 2022 In this study, we demonstrate three-dimensional (3D) hollow nanosphere electrocatalysts for CO2 conversion into formate with excellent H-Cell performance and industrially-relevant current density in a 25 cm2 membrane electrode assembly electrolyzer ...
Thuy-Duong Nguyen-Phan +8 more
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On the economics of renewable energy sources
Energy Economics, 2013 Abstract With the global expansion of renewable energy (RE) technologies, the provision of optimal RE policy packages becomes an important task. We review pivotal aspects regarding the economics of renewables that are relevant to the design of an optimal RE policy, many of which are to date unresolved.
Edenhofer, O. +6 more
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A New Phase Sequence Exchanging Control Method for Reducing Impulse Current and Voltage
IEEE Access, 2019 Phase sequence exchanging technology (PSET) is a recently developed emergency control technology for out-of-step power systems. The PSET system does not satisfy the condition of synchronization however, and will produce impulse current and impact torque.
Yifan Li +5 more
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Zhongguo dianli, 2023 Massive defect text data of relay protection devices is lack of data mining based on professional dictionary. It cannot provide sufficient support for grading, diagnosing, and eliminating relay protection defects, thus unable to meet efficient operation ...
Zhongshuo LIU +7 more
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IEEE Access, 2020 In this paper, an analytical model is presented to calculate the low frequency magnetic shielding effective (SE) of the spherical shell with a circular aperture and finite conductivity.
Xiaochen Yang +4 more
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A New Technology Applied to Power System Stability Control: Phase Sequence Exchange Technology
IEEE Access, 2019 AC transmission systems are often affected by stability issues. During the design phase of such systems, their ability to cope with the various kinds of disturbance is taken into consideration, however, sudden large disturbances may still result in power
Shaofeng Huang +3 more
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Analysis of Sub-Synchronous Band Oscillation in a DFIG System With Non-Smooth Bifurcation
IEEE Access, 2019 With the interconnection of large-scale wind power, the sub-synchronous oscillation (SSO) which is mainly analyzed by the local small-signal method occurs in many power grids.
Ancheng Xue +3 more
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IET Generation, Transmission & Distribution, 2023 Shunt reactor with auxiliary windings (SRAW) can compensate inductive reactive power for long‐distance transmission lines and supply steady power for low‐voltage devices on offshore platforms.
Tao Zheng, Haoyu Tian, Lingkun Meng
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