Results 21 to 30 of about 6,921,664 (320)
Comparative Analysis of High Impedance Fault Detection Techniques on Distribution Networks
IEEE Access, 2023 This study focused on comparing the performance of three high impedance fault detection techniques for the case of a distribution network to select the technique that is best suited for detecting faults in this network.
Ester Hamatwi +3 more
doaj +1 more source
IEEE Access, 2020 Recently, sub-synchronous oscillation (SSO) issues were observed in direct-drive permanent magnet synchronous generator (D-PMSG) based wind power generation systems (WPGS) comprising multiple wind farms.
S. Tao, Lei Zhao, Yunbo Liu, Kunyu Liao
semanticscholar +1 more source
An active interferometric method for extreme impedance on-wafer device measurements [PDF]
, 2017 Nano-scale devices and high-power transistors present extreme impedances, which are far removed from the 50-Ω reference impedance of conventional test equipment, resulting in a reduction in the measurement sensitivity as compared with impedances close to
Aaen, Peter H. +3 more
core +1 more source
A Five-Terminal Impedance Network Based Three-Port Converter
IEEE Access, 2018 A novel three-port converter for renewable energy applications is proposed based on a five-terminal impedance network, which is different from the traditional four-terminal (two-port) impedance network, therein, this impedance network characterizes ...
Guidong Zhang +7 more
doaj +1 more source
IEEE Access, 2020 The quality of the communication links in VPLC (vehicular power line communication) suffer from an impedance mismatch resulting from fluctuating VPLN (Vehicular Power Line Network) access impedance, which renders the fixed impedance matching circuit ...
Bingting Wang, Ziping Cao, Fei Song
doaj +1 more source
Compact Load Network Having a Controlled Electrical Length for Doherty Power Amplifier
IEEE Access, 2022 The load network of the carrier amplifier for the conventional Doherty power amplifier (DPA) consists of an impedance matching circuit, an offset line, and a $\lambda $ /4 transmission line (TL), so that the overall electrical length of the network can ...
Kuhyeon Kwon +12 more
doaj +1 more source
Weighted average current method for active damping control based on grid voltage feed-forward
Journal of Cloud Computing: Advances, Systems and Applications, 2021 In the weak current network environment, the existence of power network impedance will reduce the current control stability margin of LCL grid connected inverter, the stability margin will gradually deteriorate as the inductive component of the power ...
Shengqing Li, Xinluo Li, Xiaobao Lee
doaj +1 more source
Electronics Letters, 2021 In order to calculate the impedance of metal return network connected with composite skin, the volume based partial element equivalent circuit method is used to model the return network, and the impedance between the nodes of the return network at ...
Zhangang Yang +3 more
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Demonstration of sustained and useful converter responses during balanced and unbalanced faults in microgrids [PDF]
, 2012 In large power grids where converter penetration is presently low and the network impedance is predominantly reactive, the required response from converters during faults is presently specified by phrases such as “maximum reactive output”.
Burt, Graeme +4 more
core +1 more source
Measuring Impedances of DC-biased Inductors by Using Vector Network Analyzers [PDF]
International Journal of Electronics and Telecommunications, 2019 This paper is devoted to a detailed experimentally based analysis of applicability of vector network analyzers for measuring impedance of surface mount inductors with and without DC bias.
G. Asmanis +3 more
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