Permanent magnet synchronous motors have quite limited field-weakening speed range due to the constant magnet flux linkage.
Experts said the problem was caused by coins, keys and children's toys hitting the glass at high speed and weakening it over time.
After landfall, the cyclone accelerated in forward speed northward, weakening in intensity, and, by 1200 UTC on October 12, Marco became an extra-tropical cyclone.
(quote via Reuters) As this chart shows, the hryvnia has weakened with growing speed as the emerging market crisis, and the long-running anti-government demonstrations on the street, prove a toxic cocktail.
His grip on his old identity weakens with frightening speed as his new life is dominated by physical distress, stimulus deprivation and the urgent need to somehow please his captors.
At high speed with field weakening operation, iron losses, sensitive to flux densities variation in iron, could be really high because of the high electrical frequency linked to rotor speed and sharp variation of flux density waveforms inside the iron in stator due to the field weakening operation.
Hurricane Gordon weakened as it sped toward the Azores islands, and Hurricane Helene was expected to stay at sea, forecasters said.
Simulation results for the entire operating region of the drive including low speed operation and the field weakening region are presented.
The TTZ was revised in May 1936 by Admiral Orlov, Commander of the Soviet Navy, reducing speed to 30 knots, and weakening the secondary and anti-aircraft batteries.
Iselle is predicted to remain a hurricane through Wednesday before weakening into a tropical storm, which could have wind speeds between 39 and 73 mph.
