MCT Collaboration with Mita-Teknik

In early 2004, Marine Current Turbines (MCT) was looking for a control platform for their commercial demonstration tidal turbine, SeaGen.

SeaGen is 1.2MW twin rotor device. Each rotor functions much like a wind turbine, but the kinetic energy is derived from the flow of water created in tidal races instead of wind.

MCT’s control development plan involved designing the control system in Simulink using a plant model developed by IWES (formerly ISET) to derisk the control work required on the real-machine. The solution that was found was to use the Mita-Teknik WP4x00 series of control equipment – this was programmable in “C” and so the Mathworks Real-time Workshop could be used to generate “C” code from the Simulink model. Mita-Teknik fully supported this approach by engaging with early meetings between MCT and Mathworks.

The Mita-Teknik solution allows for a distributed control system. This suited MCT’s assembly strategy very well. Much of the control equipment (switchgear, transformer, frequency converters) was assembled on individual modules and inserted into the turbine tower at the quayside. This allowed MCT to complete all module wiring and module test in their own facility before shipping to site.

“Because Mita-Teknik are already in the wind market, their control system has additional benefits that were realized by MCT only once the early commissioning was underway – easily configurable engineering HMI, trigger logs, 5 minute trend logs, status code logs, summations, availability… the list is endless.” says Felix Francis, Electrical Systems Manager in MCT.

MCT use Gateway, the Mita-Teknik SCADA solution, for collecting all of this data from the turbine. Additionally, MCT have 24/7 access to their data through MiScout Web. The combination between Gateway and MiScout Web will benefit MCT by optimizing and simplifying everyday operation.

 

 

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