Abstract
This Paper describes the performance assessment program initiated for the first operating DC All Electric Controls System. An overview of the applied method considering both model and data uncertainties will be provided. Also the experience gained through operation after successful installation and commissioning of the system to date will be addressed.
While presently collecting operational experience subsea, significant data and processing capabilities of the first operating DC All Electric Controls System can be assessed. Key parameters of interest and their context are investigated in a thorough detail. This allows a permanent observation of the state of the system. By means of this approach expert confidence level increases as additional decision support is provided. This systematic condition evaluation is based on a continuous probabilistic investigation which complex physical phenomena tend to impose. Preventive planning of maintenance is enabled and leads to long term cost reduction.
The CameronDC™ system allows continuous condition monitoring which next to several others can be seen as a key enabler for All Electric Subsea Controls Systems. The presented one uses the concept of end to end redundancy, consistently from surface to the subsea actuators. It also employs high voltage DC electrical supplies, providing the advantages of minimized energy losses, and a true environmental friendly design, in line with the zero discharge concept.
