The mega-watts speed-altering frequency-constant wind-power electricity generation system adopts the AC-DC-AC converter to .... 1.The adoption of high-power IPM module2.The four- quadrant operation3.Double DSP control4.Vector-conversion control technique5.Modularized parallel technique6.The power rating of generator unit:1MW, 1.5MW, 2MW and 2.5MW 7.CAN bus interface8.Various protection functions ...