| Full text | |
| Author(s): |
Fagundes, Thales Augusto
;
Fuzato, Guilherme Henrique Favaro
;
Magossi, Rafael Fernando Quirino
;
Flores, Manuel Antonio Barrios
;
Vasquez, Juan C.
;
Guerrero, Josep M.
;
Machado, Ricardo Quadros
Total Authors: 7
|
| Document type: | Journal article |
| Source: | IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS; v. 71, n. 8, p. 11-pg., 2023-11-02. |
| Abstract | |
DC microgrids (MGs) represent self-contained systems for distributing and managing electricity locally, offering advantages in terms of efficiency and control. This article proposes the optimization of redundancy-based dc MG, emphasizing the integration of an intelligent algorithm to minimize operational costs under real-time pricing conditions and also increase the efficiency operation. The redundancy-based dc MG consists of a cascaded bidirectional Cuk converter (CBC) linked to a cascaded bidirectional boost converter, sharing two battery energy storage system (BESS) units as common inputs. Thereby, two boost converters interface the dc utility and fuel cell (FC) to the dc-link of the CBC. The redundancy-based dc MG operates with a coordinated and decentralized control among the dc utility, FC and two BESS units. The energy management system (EMS) employs a droop control for the dc utility and FC, while BESS units adhere to a state-of-charge (SoC)-sharing function. In addition, the particle swarm optimization dynamically adjusts EMS parameters for optimal real-time performance. Then, a stability analysis determines MG operational boundaries, and the effectiveness of the method is confirmed through experiments using Typhoon HIL and dSPACE setups. Finally, comparative evaluations against traditional SoC-based droop and genetic algorithms demonstrate the cost reduction of the proposed approach. (AU) | |
| FAPESP's process: | 20/05865-3 - Equalization of energy storage devices for the management and optimization of DC microgrids that use alternative sources as main source |
| Grantee: | Thales Augusto Fagundes |
| Support Opportunities: | Scholarships in Brazil - Doctorate |
| FAPESP's process: | 13/20721-4 - Sistem for interconection of distributed generators to the grid: sintesis of micro grids |
| Grantee: | Ricardo Quadros Machado |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 22/02721-6 - Equalization of energy storage devices for the management and optimization of DC microgrids that use alternative sources as main source |
| Grantee: | Thales Augusto Fagundes |
| Support Opportunities: | Scholarships abroad - Research Internship - Doctorate |