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Study on Establishing Investment Mathematical Models for Each Application ESS Optimal Capacity in Nationwide Perspective
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 Title & Authors
Study on Establishing Investment Mathematical Models for Each Application ESS Optimal Capacity in Nationwide Perspective
Kim, Jung-Hoon; Youn, Seok-Min;
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 Abstract
At present, electric power industry around the world are being gradually changed to a new paradigm, such as electrical energy storage system, the wireless power transmission. Demand for ESS, the core technology of the new paradigm, has been growing worldwide. However, it is essential to estimate the optimal capacity of ESS facilities for frequency regulation because the benefit would be saturated in accordance with the investment moment and the increase of total invested capacity of ESS facilities. Hence, in this paper, the annual optimal mathematical investment model is proposed to estimate the optimal capacity and to establish investment plan of ESS facility for frequency regulation. The optimal mathematical investment model is newly established for each season, because the construction period is short and the operation effect for the load by seasons is different unlike previous the mathematical investment model. Additionally, the marginal operating cost is found by new mathematical operation model considering no-load cost and start-up cost as step functions improving the previous mathematical operation model. ESS optimal capacity is established by use value in use iterative methods. In this case, ESS facilities cost is used in terms of the value of the beginning of the year.
 Keywords
ESS (Energy storage system);Frequency regulation reserve;Mathematical operation model;Mathematical investment model;Marginal cost;Step function;
 Language
Korean
 Cited by
 References
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