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Article

Optimal Energy Management of Building Microgrid Networks in Islanded Mode Considering Adjustable Power and Component Outages

1
Department of Electrical Engineering, Incheon National University, 12-1 Songdo-dong, Yeonsu-gu, Incheon 406840, Korea
2
Korea Institute of Energy Research, 152 Gajeong-ro, Yuseong-gu, Daejeon 34129, Korea
*
Authors to whom correspondence should be addressed.
Energies 2018, 11(9), 2351; https://doi.org/10.3390/en11092351
Received: 17 August 2018 / Revised: 3 September 2018 / Accepted: 5 September 2018 / Published: 6 September 2018
(This article belongs to the Special Issue Optimisation Models and Methods in Energy Systems)
In this paper, an optimal energy management scheme for islanded building microgrid networks is proposed. The proposed building microgrid network comprises of several inter-connected building microgrids (BMGs) and an external energy supplier. Each BMG has a local combined heat and power (CHP) unit, energy storage, renewables and loads (electric and thermal). The external energy system comprises of an external CHP unit, chillers, electric heat pumps and heat pile line, for thermal energy storage. The BMGs can trade energy with other BMGs of the network and can also trade energy with the external energy supplier. In order to efficiently utilize the components of the BMGs and the network, the concept of adjustable power is adopted in this study. Adjustable power can reduce the operation cost of the network by increasing/decreasing the power of dispatchable units. In addition, the failure/recovery of components in the BMGs and the external system are also considered to analyze the performance of the proposed operation method. In order to optimally utilize the available resources during events, precedence among loads of BMGs and the external energy supplier is considered. Simulation results have proved the applicability of the proposed method for both normal islanded mode and with outage/recovery of equipment during the operation horizon. Finally, sensitivity analysis is carried out to analyze the impact of change in components’ parameters values on the saved cost of the network. View Full-Text
Keywords: building microgrid; component outage; energy network; islanded microgrids; microgrid operation; re-optimization and rescheduling building microgrid; component outage; energy network; islanded microgrids; microgrid operation; re-optimization and rescheduling
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MDPI and ACS Style

Bui, V.-H.; Hussain, A.; Kim, H.-M.; Im, Y.-H. Optimal Energy Management of Building Microgrid Networks in Islanded Mode Considering Adjustable Power and Component Outages. Energies 2018, 11, 2351. https://doi.org/10.3390/en11092351

AMA Style

Bui V-H, Hussain A, Kim H-M, Im Y-H. Optimal Energy Management of Building Microgrid Networks in Islanded Mode Considering Adjustable Power and Component Outages. Energies. 2018; 11(9):2351. https://doi.org/10.3390/en11092351

Chicago/Turabian Style

Bui, Van-Hai, Akhtar Hussain, Hak-Man Kim, and Yong-Hoon Im. 2018. "Optimal Energy Management of Building Microgrid Networks in Islanded Mode Considering Adjustable Power and Component Outages" Energies 11, no. 9: 2351. https://doi.org/10.3390/en11092351

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