ОПТИМАЛЬНИЙ РОЗПОДІЛ ІНВЕСТИЦІЙНИХ ВИТРАТ ЕНЕРГОКОМПАНІЇ НА ЗАМІНУ ОБЛАДНАННЯ З УРАХУВАННЯМ ЕКОНОМІЧНИХ ОБМЕЖЕНЬ ТА ЕКСПЛУАТАЦІЙНИХ РИЗИКІВ В ЕНЕРГОСИСТЕМІ

The paper considers the optimal allocation issues of the allocated limited investment costs of a power company for the worn-out and damaged equipment replacement, taking into account the objectively existing limiting technical and economic factors. In particular, the main existing strategies for electrical equipment maintenance and repair used in the world practice are analysed. A fuzzy mathematical model for a comprehensive assessment of the electrical equipment units and groups importance degree in the allocating costs task for the worn and damaged equipment replacement has been developed. A mathematical model of options optimal selection for replacing the power company equipment based on integer programming in limited financial resources conditions is proposed. A technical condition comprehensive modelling of the power system subsystem electrical equipment and modes was carried out to determine the system risk index in case of emergency failures, planned and unplanned electrical equipment decommissioning, and the estimated distribution of power company investment costs for equipment replacement was performed. [ABSTRACT FROM AUTHOR]