Cooperative Energy Management of Hybrid DC Renewable Grid Using Decentralized Control Strategies

Mehrdad Beykverdi, Abolfazl Jalilvand and Mehdi Ehsan
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Mehrdad Beykverdi: Department of Electrical Engineering, Science and Research Branch, Islamic Azad University, Tehran 15785, Iran
Abolfazl Jalilvand: Department of Electrical Engineering, University of Zanjan, Zanjan 45195, Iran
Mehdi Ehsan: Department of Electrical Engineering, Sharif University of Technology, Tehran 11155, Iran

Energies, 2016, vol. 9, issue 11, 1-18

Abstract: This paper attempted to control a hybrid DC microgrid in islanded operation mode using decentralized power management strategies. Proposed adaptive I/V characteristic for hybrid photovoltaic (PV) and battery energy storage system (BESS) and wind turbine generator (WTG) adapts the distributed energy resources (DER) behavior independently in accordance with the load demand. Hence, the PV module can spend its maximum power on load demand and spend the extra power for charging the BESS, which will regulate DC bus voltage and maintain the power balance within the microgrid. When load demand is beyond the maximum generation power of PV unit, WTG will supply the energy shortage. The proposed control system was applied on the DC microgrid in order to achieve control objectives through a decentralized procedure, without telecommunication links. In order to validate the proposed strategies, the control system was implemented on a DC microgrid within MATLAB/SIMULINK, where the simulation results were analyzed and validated.

Keywords: DC microgrid; energy management; decentralized control; islanded mode; hybrid unit; droop control (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2016
References: View complete reference list from CitEc
Citations: View citations in EconPapers (6)

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