Multivariable phase-locked loop free strategy for power control of grid-connected voltage source converters
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Other documents of the author: Díaz-Sanahuja, Carlos; Peñarrocha-Alós, Ignacio; Vidal-Albalate, Ricardo
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comunitat-uji-handle2:10234/7034
comunitat-uji-handle3:10234/8619
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Title
Multivariable phase-locked loop free strategy for power control of grid-connected voltage source convertersDate
2022-05-17Publisher
ElsevierBibliographic citation
DIAZ-SANAHUJA, Carlos; PEÑARROCHA-ALÓS, Ignacio; VIDAL-ALBALATE, Ricardo. Multivariable phase-locked loop free strategy for power control of grid-connected voltage source converters. Electric Power Systems Research, 2022, vol. 210, p. 108084.Type
info:eu-repo/semantics/articleVersion
info:eu-repo/semantics/publishedVersionSubject
Abstract
A multivariable control strategy in a reference frame for grid-connected voltage source converters (VSCs) without using a phase-locked loop (PLL) is presented in this paper. First, common VSC controls such as vector ... [+]
A multivariable control strategy in a reference frame for grid-connected voltage source converters (VSCs) without using a phase-locked loop (PLL) is presented in this paper. First, common VSC controls such as vector current control (VCC) and grid voltage modulated direct power control (GVM-DPC) are analyzed and their main drawbacks are identified. Then, the multivariable control strategy is presented, including the implementation of saturation and anti-windup mechanisms, and limitation of overcurrents. Next, different uncertainty channels that may lead to instability in each approach are analyzed, showing the drawbacks related to the use of a PLL, which are avoided in our proposal. The effectiveness of the three strategies is compared by means of MATLAB/Simulink simulations, showing that the proposal presents a more robust behavior, specially in weak grids. [-]
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Electric Power Systems Research, Vol. 210, September 2022Funder Name
Spanish Ministry of Science, Innovation and Universities | Spanish Research Agency | MCIN/AEI/10.13039/501100011033
Project code
FPU16/03505 | PID2020-112943RB-I00 | PDC2021-121077-I00
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© 2022 The Authors. Published by Elsevier B.V.
info:eu-repo/semantics/openAccess
info:eu-repo/semantics/openAccess
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