Two effective methods for impedance estimation in distance relays based on the DC offset removal
Sign Up to like & getrecommendations! Published in 2021 at "Electric Power Systems Research"
DOI: 10.1016/j.epsr.2021.107102
Abstract: Abstract This paper introduces the eigensystem realization (ER)-based identification algorithm and the Z-domain method (ZDM) to improve the impedance estimation of transmission lines under fault conditions, which is achieved by removing the exponential decaying DC… read more here.
Keywords: impedance estimation; distance relays; two effective; distance ... See more keywords
Tele-Snap: a joint impedance estimation system using snap motor and openPose for remote rehabilitation diagnosis
Sign Up to like & getrecommendations! Published in 2023 at "Advanced Robotics"
DOI: 10.1080/01691864.2023.2197968
Abstract: We propose a remote joint impedance estimation system called Tele-snap for a rehabilitation diagnosis under the COVID-19 pandemic. Dynamic resistance of the human joint is essential physical information reflecting the motor function. The resistance is… read more here.
Keywords: system; snap motor; impedance estimation; impedance ... See more keywords
A Principal-Component Approach to Antenna Impedance Estimation at MISO Receivers
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Communications Letters"
DOI: 10.1109/lcomm.2022.3215305
Abstract: Impedance matching between receive antenna and front-end significantly impacts channel capacity in wireless channels. To implement the optimal matching, the receiver must know the antenna impedance. This impedance varies with the antenna’s loading conditions. Techniques… read more here.
Keywords: miso receivers; antenna impedance; impedance estimation; estimation miso ... See more keywords
Dynamic Impedance Estimation: Challenges and Considerations
Sign Up to like & getrecommendations! Published in 2021 at "Applied Sciences"
DOI: 10.3390/app11020558
Abstract: The objective of this paper was to examine the dynamic impedance estimation of electrical systems from online measurements. The paper makes several considerations and highlights the challenges to obtain a precise estimation. Transducer equalization and… read more here.
Keywords: estimation challenges; impedance estimation; dynamic impedance; estimation ... See more keywords
A Method for Utility Harmonic Impedance Estimation Based on Constrained Complex Independent Component Analysis
Sign Up to like & getrecommendations! Published in 2018 at "Energies"
DOI: 10.3390/en11092247
Abstract: Utility harmonic impedance is an important parameter for harmonic mitigation. In this paper, a method for utility harmonic impedance estimation method based on constrained independent component analysis is proposed. The conventional impedance estimation method based… read more here.
Keywords: harmonic impedance; utility; impedance estimation; method ... See more keywords