Results 251 to 260 of about 12,297 (303)

Superimposed modal voltage based passive islanding detection of grid tied distributed generation using Wigner distribution function. [PDF]

Sci Rep
Albalawi H, Bukhari SBA, Alatwi AM, Wadood A.   +3 more
europepmc   +1 more source

Microgrids as a Tool for Energy Self-Sufficiency. [PDF]

Sensors (Basel)
Bielecki S, Skoczkowski T, Wołowicz M.
europepmc   +1 more source

Experimental performance examination of a coherence technique-based numerical differential current relay for AC machine stator windings protection. [PDF]

Sci Rep
Mahmoud RA.
europepmc   +1 more source

Calculating torque, back-EMF, inductance, and unbalanced magnetic force for a hybrid electrical vehicle by in-wheel drive application. [PDF]

Sci Rep
Hosseinpour A, Rahideh A, Abbas A, Iqbal A, El-Bayeh CZ, Flah A, Ali E, Ghaly RNR.   +7 more
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Improved fault-clearing strategy for large renewable energy systems using advanced optimization and FLC. [PDF]

Sci Rep
Almalaq A, Alqunun K, Abbassi R, Aleem SHEA, Mohamed RG.   +4 more
europepmc   +1 more source

Metallic tellurium for p-type contacts of two-dimensional MoTe₂ field-effect transistors. [PDF]

Nat Commun
Zhu Y, Wang F, Li S, Shen C, Cai Y, Yan T, Zhang F, Wang Y, Zhan X, Xu K, Wang H, Zhang H, Wang Z, He J.   +13 more
europepmc   +1 more source

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Capacitor Voltage Reduction in Modular Multilevel Converters Under Grid Voltages Unbalances

IEEE Transactions on Power Delivery, 2020
Negative- and zero-sequence internal currents of a modular multilevel converter (MMC) under unbalanced ac-grid conditions can increase the peak voltage of the submodule (SM) capacitors, which should be kept below a maximum voltage limit. This paper investigates the impact of offset pulsewidth modulation (OPWM) and zero-sequence voltage injection on ...
Jinke Li, Georgios Konstantinou, Harith R. Wickramasinghe, Christopher D. Townsend, Josep Pou   +4 more
openaire   +1 more source

DG control strategies for grid voltage unbalance compensation

2014 IEEE Energy Conversion Congress and Exposition (ECCE), 2014
With the high level penetration of power electronics interfaced Distributed Generation (DG) systems, applying these systems to compensate the grid voltage unbalance is becoming an important and interesting ancillary service for the utility. However, compensating the unbalance voltage leads to active power oscillation from the DG and may cause adverse ...
Jinghang Lu, Farzam Nejabatkhah, Yunwei Li, Bin Wu   +3 more
openaire   +1 more source

Reducing grid losses and voltage unbalance with PV inverters

2014 IEEE PES General Meeting | Conference & Exposition, 2014
In this paper, three-phase PV inverters are used to reduce the losses and the voltage unbalance in three-phase four-wire distribution grids. PV inverters rarely operate at maximal power production. If the PV inverter has four or six inverter legs it can supply negative- and zero-sequence currents. This makes it possible for the majority of the produced
S. Weckx, C. Gonzalez, J. Driesen
openaire   +1 more source