> I assume that this would have to be locked to the grid frequency > somehow - can't see all that power being rectified then sent out > through a grid-locked inverter.
Why not? Diesel-electric locomotives do electrical conversions because it's more efficient than mechanical gears. Some high voltage transmission lines are DC. The conversion sites on each end must be interesting. This article http://en.wikipedia.org/wiki/Wind_turbine_design#Generating_electricity says: Older style wind generators rotate at a constant speed, to match power line frequency, which allowed the use of less costly induction generators. Newer wind turbines often turn at whatever speed generates electricity most efficiently. This can be solved using multiple technologies such as doubly fed induction generators or full-effect converters where the variable frequency current produced is converted to DC and then back to AC, matching the line frequency and voltage. Although such alternatives require costly equipment and cause power loss, the turbine can capture a significantly larger fraction of the wind energy. -- These are my opinions, not necessarily my employer's. I hate spam. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
