solve it by using matlab

480-V 50-Hz, Y-connected, six-pole synchronous generator has a per-phase synchronous reactance of 1.0 Q. Its full-load armature current is 60 A at 0.8 PF lagging. This generator has friction and windage losses of 1.5 kW and core losses of 1.0 kW at 60 Hz at full load. Since the armature resistance is being ignored, assume that the 12R losses are negligible. The field current has been adjusted so that the terminal voltage is 480 V at no load. Plot the terminal characteristic (terminal voltage versus line current) ofthis generator as its armature current varies from no-load to full load at a power factor of (a) 0.8 lagging, (b) 0.8 leading and (c) unity power factor. Assume that the field current remains constant at all times.