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1. 发明公开

EP3849074A1 TORSIONAL MODE DAMPING CONTROLLER 审中-公开
公开(公告)号：EP3849074A1
公开(公告)日：2021-07-14
申请号：EP20214495.2
申请日：2020-12-16
申请人： Rolls-Royce plc
发明人： Kambrath, Jishnu , Liu, Xiong , Wang, Youyi , Ayu, Aaron
IPC分类号： H02P23/04 , H02P21/05 , H02P9/10
摘要： A torsional mode damping controller is provided for an electro-mechanical system in which power electronics provide electrical power to drive an electrical motor, and in which plural rotating masses, including a rotor of the electrical motor, are mechanically coupled to transmit torque therebetween. The controller modifies the electrical power provided to the electrical motor to provide active damping control of torsional vibration in the rotating masses. The controller is configured to: receive a measurement of a rotational speed of the rotating masses ω m and an estimate or a measurement of a torque transmitted between the rotating masses T sh ; based on the received transmitted torque T sh , generate a compensating torque to suppress vibration T com ; based on the received rotational speed ω m and the compensating torque T com , generate an electromagnetic torque modification signal T modi ; and modify the electrical power provided to the electrical motor on the basis of the electromagnetic torque modification signal T modi· The controller is further configured to generate the compensating torque T com by applying a filter to the received transmitted torque T sh , the filter being based on plural tunable parameters including a tuning gain K, a cut-off frequency ω n and a resonant damping ratio ζ.

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