Noise resistant microcontroller used in high power inverters for PWM generating
It's not about the microcontroller, it's about the circuit around it to keep nasty spikes off the micro.  This will require very careful attention to layout, proper grounding, and probably also shielding of critical parts.  This applies both to the emitters of the noise and the things susceptible to the noise.

The best way to deal with noise is prevent emitting it in the first place, or keeping it contained when you do.  After that it's designing everything else to be noise tolerant.  Part selection can help, but again, the real issue is good circuit design.