New type of energy-saving electric drive: the most efficient way to save energy.

There are known DC and AC electric drives with excitation control, containing negative feedback circuits for speed and flow derivative. In such drives, with an increase in the number of elements included in them, the efficiency always decreases proportionally to the number of links included in them. That is, if the power supplied to the drive motor is Pe = I × U, , then the power on the drive motor shaft will be equal to: P dr = Pe × Kdr , where Kdr - efficiency of the drive motor. The generator will supply the following power: Pg = Pe × Kdr × Kg, where Kg - generator efficiency. Further, the consumed power will also decrease as the number of links included in the chain with other consumers increases. The device described below is related to electric drives with speed feedback. The drive uses a parallel oscillatory circuit in which current resonance is achieved. This parallel oscillatory circuit has a built-in brushless anchor of a direct current motor DCm, which is powered by a brushless anchor of an alternating current generator G, made according to the synchronous generator scheme. The anchor of the generator G and the motor DCm are on the same shaft, forming a single system that is driven by the drive motor DM.