INTEGRATED HIGH-TEMPERATURE STARTER-GENERATOR AND CONTROL METHOD THEREOF Russian patent published in 2016 - IPC H02K21/02 H02K21/12 H02K19/36 

FIELD: electronic equipment; engines and pumps.

SUBSTANCE: invention relates to electrical engineering, namely, to aircraft engine start and power supply to onboard system of aircraft. Starter-generator, rotor shaft of which is common to shaft of gas turbine engine, wherein on shaft there are permanent magnets with alternating polarities and different allowable operating temperature, and in stator slots located pole switching winding. Method of controlling integrated starter-generator consists in reduction of number of active poles in mode of operation of generator, thus reducing frequency of generated current, and in mode of operation of starter in increasing number of active poles, while providing sufficient starting torque, with automatic demagnetisation under temperature effect or are magnetized with permanent magnets on rotor depending on operating mode of starter-generator.

EFFECT: providing stable operation of integrated starter-generator in temperature mode to 450 °C due to automatic reduction of number of poles in case of allowable operating temperature exceeding and pass into generator mode and vice versa, increasing number of poles with reduction of operating temperature below permissible and pass in mode of starter.

2 cl, 2 dwg