Can AC motors be converted into generators?
At present in the society is widely used in three-phase asynchronous motor, JO2, JO2L, JO3, JO4, JO3L, and Y series, the series of motor power is less than four thousand watts, the connection method most star / triangle, a voltage of 380 volts or 220 volts (Y/ 380/220) 4 thousand watt motor more power, the connection is basically only a triangle connection method is only applicable to 380 volts. (J, J1, J2, JO, JO1 series of old power, regardless of size, are most suitable for two 380/220 and two Y/ voltage delta connection, because the loss is now rarely used)
Change the rotor to a magnet or an electromagnet
Another method is to replace the original rotor directly with the one or two pole permanent magnet. Note: the poles of the permanent magnet should be as close to the stator as possible, but they cannot be touched. Rotating the rotor (or permanent magnet rotor) can pass the stator around the output voltage, current. If the speed is increased, the voltage can be mentioned very high.
AC motors can be converted into generators.The rotor can be removed, carefully removing the aluminum bars in the rotor and the aluminum shorting rings at both ends, and adding the winding around the excitation. Connect the slip ring and carbon brush with the excitation circuit. This method is difficult to operate, but can adjust the output voltage by adjusting the magnetic field.
