A Blended SPS-ESPS Control DAB-IBDC Converter for a Standalone Solar Power System
AbstractIn sustainable energy applications, standalone solar power systems are mostly preferred for self-powered energy zones. In all standalone renewable power systems, batteries are still preferred as the common energy storage device. On the other hand, batteries are not applicable for high peak power demand applications because of their low power density. A supercapacitor is a preferable high-power density energy storage device for high peak power applications. A 2 kW, 50 kHz digital control dual active bridge isolated bi-directional dc-dc converter (DAB-IBDC) was developed for interfacing the supercapacitor bank in standalone solar power system. This paper proposes a blended SPS-ESPS digital control algorithm for a DAB-IBDC converter instead of using a traditional single-phase shift (SPS) control algorithm, which is commonly used for large input to output voltage varying applications. This proposed blended SPS-ESPS control algorithm achieved high power conversion efficiency during a large input to output voltage variation, over a traditional phase shift control algorithm by reducing the back-power flow and current stress in a circuit. This system also achieved maximum power point for solar modules and enhanced rapid charging-discharging for a supercapacitor bank. Both SPS and the blended SPS-ESPS control algorithms were verified experimentally using 2 kW DAB-IBDC topology implemented with standalone power system that combination of 2000 W input solar module and 158 Wh supercapacitor bank. View Full-Text
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Sathishkumar, P.; Himanshu; Piao, S.; Khan, M.A.; Kim, D.-H.; Kim, M.-S.; Jeong, D.-K.; Lee, C.; Kim, H.-J. A Blended SPS-ESPS Control DAB-IBDC Converter for a Standalone Solar Power System. Energies 2017, 10, 1431.
Sathishkumar P, Himanshu, Piao S, Khan MA, Kim D-H, Kim M-S, Jeong D-K, Lee C, Kim H-J. A Blended SPS-ESPS Control DAB-IBDC Converter for a Standalone Solar Power System. Energies. 2017; 10(9):1431.Chicago/Turabian Style
Sathishkumar, P.; Himanshu; Piao, Shengxu; Khan, Muhammad A.; Kim, Do-Hyun; Kim, Min-Soo; Jeong, Dong-Keun; Lee, Cheewoo; Kim, Hee-Je. 2017. "A Blended SPS-ESPS Control DAB-IBDC Converter for a Standalone Solar Power System." Energies 10, no. 9: 1431.
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