| Texto completo | |
| Autor(es): |
Queiroz, Eliabe Duarte
;
Yutaka Ota, Joao Inacio
;
Pomilio, Jose Antenor
;
Tsuzuki, MDG
;
Pessoa, MAD
Número total de Autores: 5
|
| Tipo de documento: | Artigo Científico |
| Fonte: | 2021 14TH IEEE INTERNATIONAL CONFERENCE ON INDUSTRY APPLICATIONS (INDUSCON); v. N/A, p. 8-pg., 2021-01-01. |
| Resumo | |
The paper presents the description, analysis, and linearization in space-state form of three distinct phase-lock loop (PLL) systems, which are aimed for grid-following converters in a microgrid. PLL systems play an important role to assure proper phase angle and frequency tracking, which are fundamental to allow the proper operation of grid-connected converters and droop-operation of multiple converters in a microgrid. Due to its non-linear nature, accurate linearization methods must be used to include the dynamics of the PLL into stability analysis of an individual converter or of a cluster of grid-connected converters. The capability of analyzing dynamics by the means of reduced subsystems brings advantages of space-state form linearization when used for complex and non-linear systems such as the PLL. The accuracy of the described space-state linearized model is verified. Simulation results show that the error between the non-linear model and the space-state representation linearized model is below 2.5 %. The modelling presented is a good candidate to be used in analysis of local stability, when concerning an individual grid-following converter, as well for global stability, when concerning a cluster of converters within a microgrid. (AU) | |
| Processo FAPESP: | 16/08645-9 - Pesquisas interdisciplinares em redes inteligentes de energia elétrica |
| Beneficiário: | João Bosco Ribeiro do Val |
| Modalidade de apoio: | Auxílio à Pesquisa - Temático |