There are a number of variable speed drive technologies out there. While some have a uniform power factor close to unity across the operational range (such as the VSIs), others go from anywhere around 0.4 to 0.8 (such as the Cyclos).
So, is any one type of electrical variable speed drive...
Pelamis Wave Energy Converter generating electricity into the Portuguese grid off the coast of Aguçadoura, Portugal, October 2008. Can anyone tell me why we do not do more of these projects?
http://www.youtube.com/watch?v=JYzocwUfpNg
http://www.youtube.com/watch?v=F0mzrbfzUpM...
Has anyone studied the efficiency differences between the marine propulsion drives systems available?
I understand and suspect that the now legacy CEGELEC (Alstom) variable frequency drives are the most efficient marine propulsion drives across all speeds. Nevertheless, I like to see a study or...
