Reliability Evaluation of Offshore Oil Power System Considering Production Indexes

Abstract

As the only power source for offshore isolated oilfield groups, the safety and reliability of the offshore oil power system is a prerequisite for the production of offshore oil. Therefore, it is of practical value to evaluate the reliability of the offshore oil power system. This paper proposes a reliability evaluation method of offshore oil power system considering the production indexes. Since the production targets of offshore oilfield groups are clear and there is no clear functional relationship between the oil production and the electricity supply, the production reliability indicators are proposed to better assess the losses caused by the faults. In addition, with the fewer loads in the power systems and the stronger correlation between the loads, the load shedding operation is different from that of onshore power system. Therefore, a discrete trip load shedding model and a load linkage load shedding model are established. The method is used to evaluate the reliability of the JA oilfield group power system. It is found that the weakest part of the offshore oilfield group power system is the transmission system. By adding lines to form a ring network, the reliability of the power system can be improved.