Results 31 to 40 of about 3,455 (300)
A novel two-layer winding topology for sub-harmonic synchronous machines
, 2022 With optimized design and modern brushless operation, wound rotor synchronous machines are resurrecting as a strong contender in many applications presently dominated by permanent magnet machines.
Rafin, SM Sajjad Hossain +3 more
core +1 more source
Calculation of Rotor Harmonic Losses in Multiphase Induction Machines
Machines, 2022 The topic of this paper is the determination of rotor harmonic losses in multiphase machines. Specifically, harmonic losses occur in the rotor winding and core due to higher-order spatial harmonics of the flux density.
Bogdan Brkovic, Milos Jecmenica
doaj +1 more source
Assessing Time-Varying Harmonic Interactions in a Wind Park [PDF]
IEEE Access, 2021 The harmonic interaction mechanism in a wind park is examined in this paper. The paper investigates the feasibility of a solution to the yet challenging harmonic contribution estimation from multiple sources in a wind park with limited available information, via an extension of a simple modeling approach as well as from detailed analysis of field ...
Vineetha Ravindran +3 more
openaire +2 more sources
Energies, 2023 The analyses of the influence of spatial harmonics on the electromagnetic torque of the multi-phase induction machine and reducing this influence are important tasks to ensure the high efficiency of the induction machine.
Andriy Kutsyk +3 more
doaj +1 more source
General Analytical Model of Magnet Average Eddy-Current Volume Losses for Comparison of Multi-phase PM Machines with Concentrated Winding [PDF]
, 2014 this paper studies magnet eddy-current losses in permanent magnet (PM) machines with concentrated winding. First of all, space harmonics of magnetomotive force (MMF) and their influence on magnet losses in electrical machines are investigated.
LEGRANGER, Jerome +2 more
core +1 more source
Harmonization in laboratory medicine: Blowin’ in the wind
Clinical Chemistry and Laboratory Medicine (CCLM), 2018 n ...
Plebani, Mario +2 more
openaire +3 more sources
Harmonic Current Predictors for Wind Turbines [PDF]
Energies, 2013 The harmonic impact caused by wind turbines should be carefully investigated before wind turbines are interconnected. However, the harmonic currents of wind turbines are not easily predicted due to the variations of wind speed. If the harmonic current outputs can be predicted accurately, the harmonic impact of wind turbines and wind farms for power ...
Jen-Hao Teng +3 more
openaire +2 more sources
AC Distributed Winding with Low Higher Spatial Harmonics Content in Mmf Distribution
Energies, 2023 This paper presents a new winding with a low higher spatial harmonics content. This winding enables the elimination of the fifth harmonic, as the most significant, in three-phase winding and the third harmonic in two-phase symmetrical winding.
Jan Staszak
doaj +1 more source
New 5-Phase Concentrated Winding Machine with Bi-Harmonic Rotor for Automotive Application [PDF]
, 2014 For a power range from 10 to 30 kW, 5-phase machines are well adapted to low-voltage (48V) supply thanks to their reduced current per phase. For three-phase machines but with higher voltages (>120V), machines with a number of slots per pole and per phase
B. Aslan +3 more
core +1 more source
Fault-Tolerant Operation of Wound Field Synchronous Machine Using Coil Switching
IEEE Access, 2019 This paper proposes a fault tolerant operation of a wound field synchronous machine (WFSM) under the loss of excitation (LOE) fault in the rotor field winding. A two-mode field excitation scheme is presented, where the rotor of the WFSM was modified, and
Muhammad Ayub +3 more
doaj +1 more source