Results 31 to 40 of about 792,011 (298)
Wavelet-based EMTR method for fault location of VSC-HVDC transmission lines
The Journal of Engineering, 2018 A wavelet-based electromagnetic time reversal method for locating faults in voltage source converter-high-voltage direct current (VSC-HVDC) transmission lines is proposed in this study.
Xipeng Zhang +4 more
doaj +1 more source
Effect of optimal torque control on rotor loss of fault-tolerant permanent-magnet brushless machines [PDF]
, 2002 A faulted phase in a fault-tolerant permanent-magnet brushless machine can result in significant torque ripple. However, this can be minimized by using an appropriate optimal torque control strategy.
Atallah, K. +3 more
core +1 more source
Two basic ways to realise DC circuit breakers
The Journal of Engineering, 2019 As a key element of the DC grid, the technology of DC circuit breakers (DCCBs) still have difficulty to be widely used due to its large cost and volume. This paper studies the basic principle and its realisation methods for DCCBs.
Zheng Xu +3 more
doaj +1 more source
A Zero Crossing Hybrid Bidirectional DC Circuit Breaker for HVDC Transmission Systems
Energies, 2021 With the increasing demand for renewable energy power generation systems, high-power DC transmission technology is drawing considerable attention. As a result, stability issues associated with high power DC transmission have been highlighted.
Geon Kim +4 more
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Frequency Extraction of Current Signal Spectral Components:A New Tool for the Detection of Rotor Electrical Faults in Induction Motors [PDF]
, 2019 This work expands the classical current signature analysis in induction machines in a two-stage spectral decomposition manner. The proposed methodology can be summarized in two main steps: initially, the current signals are analyzed using a time ...
Arvanitakis, I +3 more
core +1 more source
IET Generation, Transmission & Distribution, 2020 The increasing permeation of the distributed generators in the power system brings great challenges for fault diagnosis, especially for the distribution networks with ungrounded neutral or grounded by Peterson coil as the fault current is limited and ...
Fang Shi +4 more
doaj +1 more source
电力工程技术, 2022 The fault characteristics of direct current (DC) grids can be analyzed by addressing the grid damping characteristics. However,the frequency-dependent characteristics of the transmission line parameters are usually ignored in the conventional grid ...
CHEN Siwei +5 more
doaj +1 more source
Sensors, 2022 With the increased demand for permanent magnet synchronous machines (PMSMs) in various industrial fields, interturn short fault (ITSF) diagnosis of PMSMs is under the limelight.
Hyeyun Jeong +3 more
doaj +1 more source
Characteristics of grounding performance at Taman Bukit Perdana [PDF]
, 2020 Grounding system is one of the important part during installation of power systems. The function of grounding system is to enable protection to the power system in case of any current leakage or lightning strike.
., Muhammad Saufi +4 more
core
Optimal torque control of fault-tolerant permanent magnet brushloss machines [PDF]
, 2003 Describes a novel optimal torque control strategy for fault-tolerant permanent magnet brushless ac drives operating in both constant torque and constant power modes.
Atallah, K., Howe, D., Wang, J.B.
core +1 more source