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Relation formulation between daily and hourly load curve based loss of load expectation indices

Relation formulation between daily and hourly load curve based loss of load expectation indices

Authors :
Duy-Phuong N. Do
Jaeseok Choi
Ungjin Oh
Junmin Cha
Donghoon Jeon
Hongseok Choi
Yeonchan Lee
Source :
2016 International Conference on Probabilistic Methods Applied to Power Systems (PMAPS).
Publication Year :
2016
Publisher :
IEEE, 2016.

Abstract

This paper develops a conversion function and method transforming from daily peak load curve used LOLE D [days/year] to hourly load curve used LOLE H [hours/year] firstly. The indices can not only be conversed just arithmetically but also have different characteristics physically because of using their different load curves. The conversion function is formulated as variables of capacity and forced outage rate of generator, hourly load daily load factor and daily peak load yearly load factor, etc. Therefore, the conversion function (γ = ϕ(·)) can not be formulated in simple but in complex and difficult. In this study, therefore, the function is formulated as linear times of separated two functions. One is exponential formed conversion function of daily load factor. Another is formulated exponential typed conversion function of daily peak load yearly load factor. Furthermore, this paper presents algorithm and flow chart for conversing from LOLE D [days/year] to LOLE H [hours/year]. The proposed conversion function is applied to sample system and actual KPS(Korea Power System) in 2015. The exponent coefficients of the conversion functions are assessed using proposed method. Finally, assessment errors using conversion function for case studies of sample system and actual system are evaluated to certify the firstly proposed method.

Details

Database :
OpenAIRE
Journal :
2016 International Conference on Probabilistic Methods Applied to Power Systems (PMAPS)
Accession number :
edsair.doi...........551bfe962e0569eb3b70d85593352c4d
Full Text :
https://doi.org/10.1109/pmaps.2016.7764201