Security-Constrained Unit Commitment of the IEEE ۳۹-Bus System Considering Line Outages and Solar Power Uncertainty

This paper studies security-constrained unit commitment for the IEEE ۳۹-bus system under transmission contingencies and solar generation uncertainty. A mixed-integer programming model is developed to minimize generation, startup, and spinning-reserve costs while satisfying unit operating limits, ramp-rate constraints, power balance, reserve requirements, and DC network constraints. Critical line outages are represented through line outage distribution factors to enforce N-۱ security. Two solar farms are then added at buses ۳۴ and ۳۵, and three production scenarios are evaluated. The results show that security constraints increase cost, while solar integration partially offsets this increase in the expected case.

کلیدواژه ها:

Security-Constrained Unit Commitment ، N-۱ Contingency ، LODF ، Solar Uncertainty ، IEEE ۳۹-Bus System