Reliability Evaluation of Offshore Oil Platform Power Systems
Oil Platforms are composed by systems and devices responsible for the production, transport and storage of oil. These platforms can be located at land (onshore) or at sea (offshore). In Brazil, most of oil production and reserves are located offshore, most of them far from the coast, in platforms, and at large depths. In these platforms, oil processes depend considerably on their electrical systems, such that large attention is devoted to the reliability and security of these systems. Electrical failures might cause severe consequences to the platforms and the external environment, leading to the necessity of high levels of reliability and redundancy.
The high levels of security and reliability needed in platform processes lead to the necessity of integrated assessments of adequacy and security of supply, a research topic not yet explored in the state-of-the-art of this field of application. Therefore, this project proposes the development of models for the integrated assessment of adequacy and security aspects of oil platform power systems.
In order to accomplish this, a discrete-continuous combined simulation model is proposed for the emulation of time-sequential operation states aiming to estimate the reliability indices. First, the characterization of the failure modes in platforms is made in order to portray possible failures and their consequences. Afterwards, these failure modes are applied to the creation of sampling mechanisms of operation states, which might be assessed using three-phase power flow, short-circuit and transient evaluations.
All these models are embedded in a whole simulation model developed for the estimation of reliability indices. Finally, the whole simulation model is applied in the reliability assessment of a Brazilian oil platform power system.
|Conselho Nacional de Desenvolvimento Científico e Tecnológico||Brasil|
|INESC P&D Brasil||Brasil|