Aten, MartinMartinAtenWerner, HerbertHerbertWerner2023-02-272023-02-272004-06Control Engineering Practice 12 (6): 735-744 (2004)http://hdl.handle.net/11420/14899A systematic tuning procedure of a subsynchronous damping controller for a high voltage DC link is presented. Linear matrix inequality (LMI) techniques are utilized combining pole region assignment with H-infinity constraints. The controller is tuned to damp subsynchronous torsional (7-40 Hz) and electromechanical oscillations (<3 Hz) as present with a thermal generator located near to an AC/DC rectifier and a weak electrical link to the rest of the AC system. A linearized state space model is used for the control design and the performance and robustness is demonstrated by simulation using the software package EMTDC representing detailed non-linear and time varying characteristics.en1873-693920046735744ElsevierElectric generatorH-infinityHigh voltage DCLinear matrix inequalityLQGPower transmissionSubsynchronous oscillationTorsional vibrationTechnikIngenieurwissenschaftenJournal Article10.1016/j.conengprac.2003.08.001Journal Article