Sea Technology

APR 2017

The industry's recognized authority for design, engineering and application of equipment and services in the global ocean community

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24 st / April 2017 www.sea-technology.com comprehensive picture of the condition of individual assets and their life expectancy. Careful choice of the data to be measured and subsequent processing can be used to reduce offshore failures by assessing current condition and predict- ing the future states of installed equipment. Alarms can be monitored and acted upon appropriately, on-site inspec- tions can be minimized, and maintenance can be planned for maximum effectiveness. It will also greatly reduce the need, risk and cost associated with inspection crews travel- ing to wind farm sites offshore. Acquiring, Using Data A typical installation for a system of sensors has all data acquired, processed and transmitted to a dedicated shore- side storage facility, either through the operator's existing (opex). Operators need to generate electricity that can be sold to repay the initial investment and on- going operating costs. The failure or compromised operation of these assets can have serious financial consequences, and even a small reduction in down- time or an extension to expected lifetime can have a rapid payback due to the high initial capex. One way to reduce lost time is to add intelligence to asset management by using condition monitoring. The use of condition monitoring systems is certainly not a new idea, and most offshore wind turbines are bristling with sensors, predominantly fitted on the mechanical components. Unfortunately, many sys- tems only lead to the generation of vast amounts of data with little or no meaning. Measurement with Meaning Extracting real value from condition monitoring equip- ment requires a systems-level approach to give meaning to the measurements. A collaboration between U.K.-based companies Proeon Systems and Aquaterra Energy provides this systems-level approach by combining expertise in both advanced control and monitoring with structural mechanics and analysis. This collaboration fuses scientific knowledge with engineering know-how to collect the appropriate data and provide meaningful interpretation. This will provide operators with accurate, informed and real-time condition analysis data to enhance maintenance, commissioning and decommissioning programs. Providing this information allows operators to build a (Top) A typical installation for a system of sensors has all data acquired, processed and transmitted to a dedicated shore-side storage facility. (Bottom) Automated data analysis software provides monitoring with meaning.

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