Next Article in Journal
Investigating the Plasma-Assisted and Thermal Catalytic Dry Methane Reforming for Syngas Production: Process Design, Simulation and Evaluation
Previous Article in Journal
Electricity Interconnection in Chile: Prices versus Costs
Article Menu
Issue 9 (September) cover image

Export Article

Open AccessArticle
Energies 2017, 10(9), 1431; https://doi.org/10.3390/en10091431

A Blended SPS-ESPS Control DAB-IBDC Converter for a Standalone Solar Power System

1
School of Electrical Engineering, Pusan National University, Busandaehak-ro 63 beon-gil 2, Busan 46241, Korea
2
Power Conversion and Control Research Centre, HVDC Research Division, KERI, Changwon 51435, Korea
3
School of Electrical Engineering, Pusan National University, Busan 46241, Korea
*
Author to whom correspondence should be addressed.
Received: 9 August 2017 / Revised: 8 September 2017 / Accepted: 12 September 2017 / Published: 18 September 2017
(This article belongs to the Section Energy Storage and Application)
Full-Text   |   PDF [7859 KB, uploaded 18 September 2017]   |  

Abstract

In 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
Keywords: dual active bridge; isolated bi-directional dc-dc converter; DAB-IBDC; blended SPS-ESPS; high power density energy storage system; standalone solar power system dual active bridge; isolated bi-directional dc-dc converter; DAB-IBDC; blended SPS-ESPS; high power density energy storage system; standalone solar power system
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

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.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Energies EISSN 1996-1073 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top