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Steady-state performance and stability analysis of mixed pole machines with electromechanical torque and rotor electric power to a shaft-mounted electrical load

Abdel-Khalik, A.S. and Masoud, M.I. and Williams, B.W. and Mohamadein, A.L. and Ahmed, M.M. and , IEEE Industrial Electronics Society (Funder) (2010) Steady-state performance and stability analysis of mixed pole machines with electromechanical torque and rotor electric power to a shaft-mounted electrical load. IEEE Transactions on Industrial Electronics, 57 (1). pp. 22-34. ISSN 0278-0046

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Abstract

This paper presents the steady-state model, performance, and stability analysis of a mixed pole machine with a new operational mode which provides a rotor torque and an n -phase rotor electrical output power to a shaft-mounted rotating electrical load. The machine operated under this mode can be used in applications that require contactless power, such as in robotics, or applications that require independent control of both rotor torque and rotor electric power, such as for contactless rotational antennas and turret systems. The performance assessment includes electromagnetic torque, electrical efficiency, mechanical efficiency, and total efficiency based on both simulation and experimentation. The effect of electrical loading and stator voltage on both rotor torque and rotor electric power is also considered. The machine steady-state stability is introduced by plotting the machine operating characteristics that determine all stable operating regions of the machine under the proposed mode of operation.