A new method of interfacing battery/supercapacitor energy storage systems for distributed energy sources
Data(s) |
2010
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Resumo |
Battery-supercapacitor hybrid energy storage systems can achieve better power and energy performances compared to their individual use. These hybrid systems require separate dc-dc converters, or at least one dc-dc converter for the supercapacitor bank, to connect them to the dc-link of the grid connecting inverter. However, the use of such dc-dc converters introduces additional cost and power losses. Therefore, the possibility of direct connection of energy storage systems, to the dc-link of a diode clamped 3-level inverter is investigated in this paper. Even though the proposed topology does not use dc-dc converters, a vector selection method is proposed to produce a similar control flexibility that is found in the separate dc-dc converter topology. The major issue with the proposed system is the imminent imbalance of the neutral point potential. A PWM technique with modified carriers is used to solve this problem. Simulations are carried out using MATLAB/SIMULINK to verify the efficacy of the proposed system. |
Identificador | |
Publicador |
IEEE |
Relação |
DOI:10.1109/IPECON.2010.5697006 Jayasinghe, S.D. Gamini, Vilathgamuwa, D. Mahinda, & Madawala, Udaya K. (2010) A new method of interfacing battery/supercapacitor energy storage systems for distributed energy sources. In Proceedings of the 9th International Power & Energy Conference (IPEC 2010), IEEE, Singapore, pp. 1211-1216. |
Direitos |
Copyright 2010 IEEE |
Fonte |
School of Electrical Engineering & Computer Science; Science & Engineering Faculty |
Palavras-Chave | #Energy storage systems interfacing #Hybrid energy storage systems #NPC unbalance #Supercapacitor |
Tipo |
Conference Paper |