Results 31 to 40 of about 4,942,826 (287)
Evaluation of Medium Voltage Network for Propagation of Supraharmonics Resonance
Energies, 2021 Power converters with high switching frequency used to integrate renewable power sources to medium and low voltage networks are sources of emission in the supraharmonic range (2 to 150 kHz).
Shimi Sudha Letha +3 more
doaj +1 more source
Energies, 2019 Many researchers in recent years have studied voltage deviation issues in distribution networks. Characterizing the impedance between consuming nodes in a network is the key to controlling the network voltage.
Daisuke Kodaira +4 more
doaj +1 more source
Direct Matching Antennas in RF Energy Harvesting Systems: A Review
Majlesi Journal of Electrical Engineering, 2022 A historical review of Radio Frequency Energy Harvesting (RFEH) Rectenna (Rectifier Antenna) Systems without a matching network is performed, with emphasis on the antenna part.
Vahid Honarvar, Farzad Mohajeri
doaj +1 more source
Theory of impedance networks: the two-point impedance andLCresonances [PDF]
Journal of Physics A: Mathematical and General, 2006 We present a formulation of the determination of the impedance between any two nodes in an impedance network. An impedance network is described by its Laplacian matrix L which has generally complex matrix elements. We show that by solving the equation L u_a = lambda_a u_a^* with orthonormal vectors u_a, the effective impedance between nodes p and q of ...
Tzeng, W. J., Wu, F. Y.
openaire +2 more sources
Automatic compensation system for impedance measurement [PDF]
, 2002 This paper deals with the realization of the four-pair terminal definition of impedance standards. A simple, though reliable, system is described that allows an automatic compensation of the voltage at the low potential port of impedance standards to be ...
VALLAN A +12 more
core +1 more source
A MODIFIED VIRTUAL SPACE VECTOR MODULATION TECHNIQUE FOR Z-SOURCE NPC INVERTERS [PDF]
Carpathian Journal of Electrical Engineering, 2018 A modified virtual space vector modulation approach for the control of a Z-source neutral point clamped inverter is presented in this paper. This approach works perfectly for the traditional neutral point clamped inverter.
Francis EFFAH +4 more
doaj
Adaptive impedance matching method based on magnetic resonance wireless energy transmission
Dianzi Jishu Yingyong, 2018 In order to solve the problem of low efficiency and transmission distance of multi-to-1(multi transmit(TX) coils to one receive(RX) coil)coupled magnetic resonance(CMR) wireless power transmission system, this paper presents 2-to-1(two TX Coils to one RX
Xiong Wei, Liu Xiaojing
doaj +1 more source
Journal of King Saud University: Engineering Sciences, 2020 This paper proposes an accurate High Impedance Fault (HIF) detection and isolation scheme in a power distribution network. The proposed scheme utilizes the data available from voltage and current sensors.
Muhammad Sarwar +5 more
doaj +1 more source
Experimental Study on Impedance Control for the Five-Finger Dexterous Robot Hand DLR-HIT II [PDF]
, 2010 This paper presents experimental results on the five-finger dexterous robot hand DLR-HIT II, with Cartesian impedance control based on joint torque and nonlinearity compensation for elastic dexterous robot joints.
Wimböck, Thomas +13 more
core +1 more source
IET Cyber-Physical Systems, 2023 In order to accurately extract the fault features of arc high impedance grounding of low‐voltage distribution lines and judge the fault feature types of arc high impedance grounding of low‐voltage distribution lines, a fault feature extraction method for
Jing Sun
doaj +1 more source