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Stator Design and Air Gap Optimization of High Speed Drag-Cup Induction Motor using FEM
Advances in Electrical and Computer Engineering, 2013 A huge number of modern applications nowadays require the use of high speed electrical machines which need to be highly optimized in order to achieve the best efficiency and the lowest mass and price.
VUKOSAVIC, S. N. +2 more
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Active Frequency Support Control Strategy for Wind Farm Considering the Energy Discrepancy of Wind Turbines [PDF]
Dianli jianshe[Objective] Wind turbine generators generally operate in maximum power point tracking （MPPT） mode and do not provide inertial response and frequency support to the power grid.
LI Fengneng, YANG Ping, WEI Zhichu, CHEN Wenhao, ZHOU Qianyufan, WAN Siyang
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Dynamic power-based temporary frequency support scheme for a wind farm
Frontiers in Energy Research, 2022 Doubly fed induction generators can participate in frequency support following a disturbance by releasing their rotational energies. However, when regaining the rotor speed, a secondary frequency dip (SFD) tends to produce a sudden output drop.
Jiahan You, Dan Xu, Jiangdong Cao
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Chemical Engineering Transactions, 2017 The impact of crowbar resistance on low voltage ride through (LVRT) of doubly-Fed induction generator (DFIG) is researched. The relationship between the crowbar resistance and the rotor transient current and the attenuation rate of stator rotor transient
Wenjuan Zhang, Haomiao Ma, Feige Zhang
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Advances in Electrical and Electronic Engineering, 2021 This paper develops a mathematical model for analyzing the steady-state performance of the Slip Power Recovery Induction Motor Drive System (SPRIMDS) which operates under unbalance supply voltage conditions.
Hilmi Fadhil Ameen, Fadhil Toufick Aula
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Critical Speed Analysis of Fibre Reinforced Composite Rotor Embedded with Shape Memory Alloy Wires
International Journal of Rotating Machinery, 2000 In the present analysis, the fundamental natural frequency of a Jeffcott and a two-mass rotor with fibre reinforced composite shaft embedded with shape memory alloy (SMA) wires is evaluated by Rayleigh's procedure.
K. Gupta
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Energies, 2020 The mechanical power and wake flow field of a 1:40 scale model of the US Department of Energy’s Reference Model 1 (RM1) dual rotor tidal energy converter are characterized in an open-channel flume to evaluate power performance and wake flow recovery. The
Craig Hill +3 more
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EnergiesNatural gas pressure-reduction stations dissipate a significant portion of the gas pressure energy during conventional throttling. The recovery of this energy at small-capacity stations remains challenging due to low gas flow rates and variable operating
Artem Belousov +7 more
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Frontiers in Energy ResearchAs converter-interfaced wind generation replaces synchronous machines, short-term inertia and governor support decline. Variable-speed wind turbines can release rotor kinetic energy for primary frequency regulation, but subsequent rotor recovery may ...
Hua Jing +4 more
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IET Generation, Transmission & Distribution, 2017 The virtual inertia control (VIC) is used to design frequency regulation for a doubly fed induction generator (DFIG). The VIC method can be improved by adding supplementary control loops for inertia response and rotor speed recovery.
Yang Fu +5 more
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