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Energies 2018, 11(4), 942; https://doi.org/10.3390/en11040942

Optimal Scheduling of Residential Microgrids Considering Virtual Energy Storage System

State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Baoding 071003, China
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Received: 1 March 2018 / Revised: 29 March 2018 / Accepted: 10 April 2018 / Published: 16 April 2018
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Abstract

The increasingly complex residential microgrids (r-microgrid) consisting of renewable generation, energy storage systems, and residential buildings require a more intelligent scheduling method. Firstly, aiming at the radiant floor heating/cooling system widely utilized in residential buildings, the mathematical relationship between the operative temperature and heating/cooling demand is established based on the equivalent thermodynamic parameters (ETP) model, by which the thermal storage capacity is analyzed. Secondly, the radiant floor heating/cooling system is treated as virtual energy storage system (VESS), and an optimization model based on mixed-integer nonlinear programming (MINLP) for r-microgrid scheduling is established which takes thermal comfort level and economy as the optimization objectives. Finally, the optimal scheduling results of two typical r-microgrids are analyzed. Case studies demonstrate that the proposed scheduling method can effectively employ the thermal storage capacity of radiant floor heating/cooling system, thus lowering the operating cost of the r-microgrid effectively while ensuring the thermal comfort level of users. View Full-Text
Keywords: microgrid; residential buildings; optimal scheduling; radiant floor heating/cooling; virtual energy storage; operative temperature; operating cost microgrid; residential buildings; optimal scheduling; radiant floor heating/cooling; virtual energy storage; operative temperature; operating cost
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Liu, W.; Liu, C.; Lin, Y.; Ma, L.; Bai, K.; Wu, Y. Optimal Scheduling of Residential Microgrids Considering Virtual Energy Storage System. Energies 2018, 11, 942.

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