following are recent publications on high efficiency permanent magnet
electric motors and their impact on energy cost savings across a range
of industrial applications. Please contact us if you would like to
contribute a related article or link. Tema Permanent Magnet Motor Efficiencies
MarineLog Magazine featured news of the installation of a 320kW fuel cell for power generation aboard the Viking Lady, a 5,900 metric ton offshore supply vessel. The first fuel cell of that size in a commercial vessel marks a turning point in clean power feneration aboard large, ocean-going vessels. Viking Lady Fuel Cell Installation
Scientific American later published a more detailed article once the ship had completed sea trials and initial commercial operations. Viking Lady Operational
Foss Maritime Company released a PowerPoint presentation on its hybrid harbor tug with an overview of the hybrid power configuration, operation and advantages. Foss Hybrid Harbor Tug
Earl Industries is a contractor to the U.S. Navy, specializing in shipbuilding and repair. Their variable speed drive motor controls were recently approved for shipboard use, making it possible to incorporate energy-efficient synchronous motors into naval propulsion and auxiliary power.
Variable Speed Drives likethese from Vacon offer precise control over synchronous motor functions. Argo|TEMA motors use this control to maximize even internal magnetic field characteristics, achieving efficiency in the high-90% range. This article documents efficiency increases in paper mill operation.
Fieldbus Communication offers complete operator control over complex process equipment and steps. Argo|TEMA motors are controlled by electronic drives like those from Danfoss that communicate with the Human Machine Interface. This gives operators complete control and feedback on critical system conditions. Applications include process manufacturing, commercial building systems, and any industrial environment requiring control over inter-related operations. Danfoss Drives Fieldbus Communication
Wind turbines are advancing in size and reliability using single or multiple permanent magnet generators. The Britannia from Clipper is rated at 10mW and is designed primarily for offshore sites. Note that the permanent magnet synchronous generator is at the heart of the turbine electrical system on page 4.