So what if I run a back to back testing? Which the BLDC motor is act as a turbine to rotate the BLDC generator's shaft? Whether I will get the trapezoidal back EMF waveform?
I am a bit confuse on the back EMF waveform shape of the brushless permanent magnet machine.
As I know brushless DC permanent magnet motor has a trapezoidal shape back EMF waveform. If I use this motor as a generator, do I still get the same waveform shape or I will get a sinusoidal waveform?
Actually I am looking for a material which is magnetic flux shielding. It is to hold the large size of stator core which around 1m long and 0.2m wide, so it must me very strong and magnetic flux shielded.
Can you please suggest me few materials in the above properties?
May I know that are there any different between the electromagnetic flux and magnetic flux?
Are there any electromagnetic flux in a permanent magnet machine?
What kind of flux will go through the permanent magnet machine's stator cores with copper wires on it?
I am really sorry to ask so many...