Synthesis of a system for secondary control of a rotor with an electromagnetic bearing

The control system for rotor electromagnetic suspension is considered. The parametrical synthesis of regulators is made by the method of the secondary control systems. The transfer functions of the control system for the rotor electromagnetic suspension in relation to the control input and main disturbance input are obtained. The transients and frequency response functions are constructed for the synthesized system. The influence of the positive feedback by displacement on the performability of the rotor electromagnetic suspension is analyzed.