İzzet ALAGÖZ, Nermin AVŞAR ÖZCAN, Umur KÜÇÜKYARAR, Evrencan OZCAN

Etkin Portföy Yönetimi Açısından Doğalgaz Kombine Çevrim Santrallarının Bakım Önceliklendirmesi

Elektrik üretim santrallarında belirli zaman aralıkları ile yürütülmesi gereken revizyon bakımlar, santralların emre amadelik oranlarının mümkün olan en üst noktaya çıkarılması açısından büyük öneme sahiptir. Bu bağlamda, revizyon bakımların analitik olarak planlanması etkin portföy yönetimi açısından bir gerekliliktir. Buradan hareketle, literatürde birden fazla sayıda santral ya da ünitenin bakım çizelgeleme problemi sıklıkla ele alınmış olmakla birlikte, bu çalışmaların ürettiği yılın belirli bir döneminde gerçekleştirilecek bakımları içeren takvimler Türkiye elektrik üretim sisteminin dinamikleri ve sistem kısıtları açısından her zaman uygulanamamaktadır. Asıl ihtiyaç, santralların emre amade tutularak hem portföy kârlılıklarının artırılması hem de enerji arz güvenliğine katkıda bulunmak için uzun süreli duruş gerektiren revizyon bakım önceliklerinin bilinerek portföylerin yönetilmesidir. Bu kapsamda bu çalışmada, literatürde ilk kez büyük ölçekli doğalgaz kombine çevrim santralı portföylerinden bir tanesinde 3 farklı santrala ait 12 ünitenin revizyon bakım önceliklendirme problemi ele alınmıştır. Çok kriterli karar verme yaklaşımları ile probleme çözüm arayan bu çalışma, dar kapsamlı periyodik bakımların planlamasından ziyade, enerji arz güvenliğine üst düzeyde etki eden uzun süreli duruşlara sahip revizyon bakım planlamasını gerçekleştirmesi açısından da literatürdeki ilk çalışmadır.

Anahtar Kelimeler:

Bakım planlama, portföy yönetimi, etkin emre amadelik, doğalgaz kombine çevrim santralı

Maintenance Prioritization of the Natural Gas Combined Cycle Power Plants in Terms of Effective Portfolio Management

Revision maintenance that should be carried out at certain time intervals in power plants is of great importance in terms of increasing the availability of power plants to the highest possible level. In this context, it is a necessity to plan the revision maintenance analytically for effective portfolio management. Within this scope, although the maintenance scheduling problem of more than one power plant or unit is frequently discussed in the literature, calendar with maintenance to be performed during certain periods of the year produced by these studies is not always applicable in terms of the system dynamics and constraints of Turkey's electricity generation system. The main need is to manage the portfolios by keeping the power plants available and knowing the revision maintenance priorities that require long-term stoppages in order to both increase portfolio profitability and contribute to energy supply security. In this context, in this study, revision maintenance prioritization problem of 12 units at 3 different power plants is discussed in one of the large-scale natural gas combined cycle power plant portfolio for the first time in the literature. This study, which seeks a solution to the problem with multi-criteria decision-making approaches, is the first study in the literature to realize revision maintenance planning with long-term stoppages that affect the energy supply security at the highest level, rather than planning narrow-scoped periodic maintenance.

Keywords:

Maintenance planning, portfolio management, effective availability, natural gas combined cycle power plant,

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