Results 11 to 20 of about 29,133 (164)
Impedance Estimation at Multi-Antenna Receivers
2023 57th Annual Conference on Information Sciences and Systems (CISS), 2023 This paper considers antenna impedance estimation based on training sequences at MIMO receivers. The goal is to firstly leverage extensive resources available in most wireless systems for channel estimation to estimate antenna impedance in real-time. We assume the receiver switches its impedance in a predetermined fashion during each training sequence.
Shaohan Wu, Brian L. Hughes
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Estimates of Acausal Joint Impedance Models [PDF]
IEEE Transactions on Biomedical Engineering, 2012 Estimates of joint or limb impedance are commonly used in the study of how the nervous system controls posture and movement, and how that control is altered by injury to the neural or musculoskeletal systems. Impedance characterizes the dynamic relationship between an imposed perturbation of joint position and the torques generated in response.
David T. Westwick, Eric J. Perreault
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Frontiers in Neuroscience, 2020 Stable and efficient coordination in physical human-robot interaction requires consideration of human feedback behavior. In unpredictable tasks, where voluntary cognitive feedback is too slow to guarantee desired task execution, the human must rely on ...
Hendrik Börner +2 more
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Responsive and Resilient Vector Current Control for Variable Grids
IEEE Open Journal of Power Electronics, 2023 This article presents a set of control enhancements for standard vector current control (VCC) that improves its stability and dynamic performance in an extended range of SCRs.
Mathieu Kervyn de Meerendre +2 more
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IEEE Access, 2022 Grid impedance plays a significant role in the performance and design considerations of nonlinear devices like Variable Frequency Drive (VFD). VFD operates across domestic, industrial, and residential applications under different grid configurations and ...
Ramesh Pandurangan +2 more
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Energy Conversion and Economics, 2022 In an islanded microgrid (IMG), droop control effectively shares real and reactive power demands among distributed generators (DGs), thereby regulating the frequency and voltage in high X/R ratio networks.
Muli Malakondaiah +3 more
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Assessment on Harmonic Emission Level of Residential Loads with Symmetry and Volatility Constraints
Zhongguo dianli, 2020 The accuracy of harmonic emission level assessment of residential loads is affected by background harmonics or three-phase harmonic unbalance. Based on Norton’s and Davinan’s theorem, a model is constructed for assessment of harmonic emission level.
Huaying ZHANG +5 more
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Adaptive Power Flow Prediction Based on Machine Learning
Energies, 2021 Power flow analysis is an inevitable methodology in the planning and operation of the power grid. It has been performed for the transmission system, however, along with the penetration of the distributed energy resources, the target has been expanded to ...
Jingyeong Park +4 more
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Impedance Acquisition of Proton Exchange Membrane Fuel Cell Using Deeper Learning Network
Energies, 2023 Electrochemical impedance is a powerful technique for elucidating the multi-scale polarization process of the proton exchange membrane (PEM) fuel cell from a frequency domain perspective.
Jiaping Xie +5 more
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Grid Impedance Estimation Using Several Short-Term Low Power Signal Injections [PDF]
AUT Journal of Electrical Engineering, 2018 In this paper, a signal processing method is proposed to estimate the low and high-frequency impedances of power systems using several short-term low power signal injections for a frequency range of 0-150 kHz.
M. M. AlyanNezhadi +2 more
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