Título:
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Design and analysis of the droop control method for parallel inverters considering the impact of the complex impedance on the power sharing
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Autor/a:
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Yao, W.; Chen, Min; Matas Alcalá, José; Guerrero Zapata, Josep Maria; Qian, Z.-M.
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Otros autores:
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Universitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica; Universitat Politècnica de Catalunya. Departament d'Enginyeria de Sistemes, Automàtica i Informàtica Industrial; Universitat Politècnica de Catalunya. SEPIC - Sistemes Electrònics de Potència i de Control |
Abstract:
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This paper investigates the characteristics of the active
and reactive power sharing in a parallel inverters system
under different system impedance conditions. The analyses conclude
that the conventional droop method cannot achieve efficient
power sharing for the case of a system with complex impedance
condition. To achieve the proper power balance and minimize the
circulating current in the different impedance situations, a novel
droop controller that considers the impact of complex impedance
is proposed in this paper. This controller can simplify the coupled
active and reactive power relationships, which are caused by the
complex impedance in the parallel system. In addition, a virtual
complex impedance loop is included in the proposed controller to
minimize the fundamental and harmonic circulating current that
flows in the parallel system. Compared to the other methods, the
proposed controller can achieve accurate power sharing, offers
efficient dynamic performance, and is more adaptive to different
line impedance situations. Simulation and experimental results are
presented to prove the validity and the improvements achieved by
the proposed controller. |
Abstract:
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Peer Reviewed |
Materia(s):
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-Àrees temàtiques de la UPC::Enginyeria electrònica::Electrònica de potència -Impedance (Electricity) -Power systems -Impedància (Electricitat) -Sistemes elèctrics de potència -- Control |
Derechos:
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Tipo de documento:
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Artículo - Versión publicada Artículo |
Editor:
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IEEE Press. Institute of Electrical and Electronics Engineers
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