Abstract
Ways for the use of energy storage systems (ESS) in electrical networks are considered. The formalization of the general approach to solving the problems of efficient use of ESS in electrical networks is performed. The article shows the mathematical models for evaluating the effectiveness of using ESS and determination of the ESS optimal configuration, including regulation modes of electric networks. The operation of the electrical network with an connected group of four ESS is considered. The standard IEEE 33-node 12.6 kV network was used as a base model. A new target function has been proposed. This function is based on the benefit of installing the ESS and consists of the annual cost of buying / selling electricity by ESS, the annual cost of reducing active losses in the electricity grid due to the operation of the ESS and the corresponding investment costs. The results of optimization calculations using the proposed objective function are given. A comparative analysis of the obtained results was performed. The estimation of the components of the function of the benefit of using ESS under the condition of elimination of deviations of voltage levels in separate nodes of the electric network from the normalized values is performed. References 33, figures 2, tables 2.
Publisher
National Academy of Sciences of Ukraine (Co. LTD Ukrinformnauka)
Subject
Electrical and Electronic Engineering,Energy Engineering and Power Technology
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