Instantaneous Zero Sequence Voltage for Grid Energy Balancing Under Unbalanced Power Generation

Aguilera, R. P.; Acuna P.; Rojas C.A.; Konstantinou G.; Pou J.

Abstract

An instantaneous zero sequence voltage injection method is presented in this paper. The key novelty of this method lies in the ability to provide instantaneous zero sequence voltage references using stationary abc-framework variables with no numerical iterations and no phase-locked loops. This paper discusses its applicability, especially in the field of large-scale photovoltaic power plants integration, where the efforts are made to achieve grid energy balancing. As an application example, the proposed method is used to find suitable zero sequence voltage references to extract unbalanced power from each phase in star-connected cascaded H-bridge multilevel converters. Under same conditions, the proposed method allows reactive power control, in contrast to traditional approaches that only consider unity power factor operation. Experimental results are provided to verify the effectiveness of the proposed zero sequence voltage injection method.

Más información

Título según WOS: Instantaneous Zero Sequence Voltage for Grid Energy Balancing Under Unbalanced Power Generation
Título según SCOPUS: Instantaneous Zero Sequence Voltage for Grid Energy Balancing under Unbalanced Power Generation
Título de la Revista: 2018 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE)
Editorial: IEEE
Fecha de publicación: 2019
Página de inicio: 2572
Página final: 2577
Idioma: English
DOI:

10.1109/ECCE.2019.8912472

Notas: ISI, SCOPUS