Ordinary fans can generate electricity

Depending on the speed of rotation, any motor can generate electricity. The reason is that there is residual magnetism inside the motor, especially if the motor has been used too much, there will be more residual magnetism. But there is still a long way to go before this electricity can be used in production and in life. Because they do not have enough magnetic fields to meet and maintain normal electricity production needs. For the motor to generate electricity normally, an excitation device must be installed to make the magnetic field relatively stable and continuous. For example, to convert an ordinary small three-phase motor into a motor, the residual magnetism of the motor itself is used, and then a capacitor of a certain capacity is added to each phase. According to the principle of the capacitor, the magnetic. The field is enhanced and the magnetic field is repeated en continuous. Only in this way can the generator operate normally.