, 2021 A flexible asynchronous AC link (FASAL) system is a technology that interconnects two power system networks operating at the same or different frequencies.
Imdadullah +3 more
semanticscholar +1 more source
A compound control strategy of three‐phase Vienna rectifier under unbalanced grid voltage
IET Power Electronics, 2021 When traditional finite‐set predictive power control is applied to Vienna rectifier, the input current will produce a large number of third harmonics under unbalanced power network, which will seriously affect the normal operation of Vienna rectifier ...
Xingtian Feng +4 more
doaj +1 more source
A Generalized Index for Static Voltage Stability of Unbalanced Polyphase Power Systems including Th\'evenin Equivalents and Polynomial Models [PDF]
, 2019 This paper proposes a Voltage Stability Index (VSI) suitable for unbalanced polyphase power systems. To this end, the grid is represented by a polyphase multiport network model (i.e., compound hybrid parameters), and the aggregate behavior of the devices
Kettner, Andreas Martin, Paolone, Mario
core +2 more sources
Advanced Control of the dynamic voltage restorer for mitigating voltage sags in power systems [PDF]
, 2018 The paper presents a vector control with two cascaded loops to improve the properties of Dynamic Voltage Restorer (DVR) to minimize Voltage Sags on the grid.
Dung, Vo Tien +4 more
core +1 more source
Grid-tied converter operated under unbalanced and distorted grid voltage conditions
Bulletin of the Polish Academy of Sciences Technical Sciences, 2020 The paper presents a three-phase grid-tied converter operated under unbalanced and distorted grid voltage conditions, using a multi-oscillatory current controller to provide high quality phase currents. The aim of this study is to introduce a systematic design of the current control loop.
A. Gałecki +4 more
openaire +2 more sources
A multifunctional dynamic voltage restorer for power quality improvement [PDF]
, 2018 Power quality is a major concern in electrical power systems. The power quality disturbances such as sags, swells, harmonic distortion and other interruptions have an impact on the electrical devices and machines and in severe cases can cause serious ...
Dung, Vo Tien +2 more
core +1 more source
Control of DFIG-WT under unbalanced grid voltage conditions [PDF]
2009 IEEE Energy Conversion Congress and Exposition, 2009 The voltage oriented control in the synchronous reference frame (VOC-SRF) have been extensively used for controlling wind turbines based on doubly fed induction generators (DFIG-WTs) through the rotor side converter of a back to back power processor.
Luna Alloza, Álvaro +5 more
openaire +3 more sources
Advanced Vector Controller for a Four-Switch Three-Phase Rectifier under Unbalanced Grid Voltage
International Transactions on Electrical Energy Systems, 2022 One of the main challenges of a four-switch three-phase rectifier (FSTPR) is a DC imbalance in capacitor voltages. On the other hand, under unbalanced grid voltage conditions, unbalanced three-phase input current and the DC-link voltage affect the ...
M. Alizadeh Bidgoli, S. Honarbari
doaj +1 more source
Tradeoffs between AC power quality and DC bus ripple for 3-phase 3-wire inverter-connected devices within microgrids [PDF]
, 2011 Visions of future power systems contain high penetrations of inverters which are used to convert power from dc (direct current) to ac (alternating current) or vice versa.
Burt, Graeme M. +2 more
core +1 more source
Energies, 2020 This paper develops a voltage modulated direct power control (VM-DPC) strategy of a doubly fed induction generator (DFIG) using extended power theory under unbalanced grid voltage conditions.
P. Cheng, Chao Wu, Fuwei Ning, Jing He
semanticscholar +1 more source