2019/12/03 by Mohammad Ostadijafari, Ostadijafari, Mohammad, Rahul Ranjan Jha +3
Engineering · #Smart Grid Energy Management #Microgrid Control and Optimization #Optimal Power Flow Distribution
paper · pdf · doi:10.48550/arxiv.1912.01582
Due to market, there is flexibility in the price for power purchase by the\nutility. At the maximum loading condition the cost of power is high, hence\nconservation voltage reduction (CVR) is a useful technique in reducing power\ndemand of the distribution system. Further, by installing battery energy\nstorage system (BESS) in the distribution system, power can be stored in the\nBESS when the price is low and can be utilize to supply the demand when the\nprice is high. In this paper, power conserving and cost saving problems are\ninvestigated. As we consider loads in distribution system as voltage dependent\nloads, the CVR objective is obtained by optimizing the nodal voltages of a\nfeeder towards the lower limit of the ANSI value using legacy devices and smart\ninverter. In order to solve introduced problems, a MPC-based algorithm is\nproposed for optimal usage of future information prediction such as load energy\nconsumption profile, PVs generation profiles and TOU electricity tariffs.\nMoreover, effect of depreciation cost of the BESS is in cost saving is\ninvestigated. The proposed method is validated using IEEE-123 node system. It\nis demonstrated form the results that the proposed method is able to reduce the\npower consumption and cost of purchased power from substation.\n