TY - JOUR U1 - Zeitschriftenartikel, wissenschaftlich - begutachtet (reviewed) A1 - Braun, Tristan A1 - Reuter, Johannes A1 - Rudolph, Joachim T1 - Observer Design for Self-Sensing of Solenoid Actuators With Application to Soft Landing JF - IEEE Transactions on Control Systems Technology N2 - A constructive nonlinear observer design for self-sensing of digital (ON/OFF) single coil electromagnetic actuators is studied. Self-sensing in this context means that solely the available energizing signals, i.e., coil current and driving voltage are used to estimate the position and velocity trajectories of the moving plunger. A nonlinear sliding mode observer is considered, where the stability of the reduced error dynamics is analyzed by the equivalent control method. No simplifications are made regarding magnetic saturation and eddy currents in the underlying dynamical model. The observer gains are constructed by taking into account some generic properties of the systems nonlinearities. Two possible choices of the observer gains are discussed. Furthermore, an observer-based tracking control scheme to achieve sensorless soft landing is considered and its closed-loop stability is studied. Experimental results for observer-based soft landing of a fast-switching solenoid valve under dry conditions are presented to demonstrate the usefulness of the approach. KW - Observers KW - Eddy currents KW - Actuators KW - Valves KW - Solenoids KW - Stability analysis KW - Integrated circuit modeling Y1 - 2018 SN - 1558-0865 SS - 1558-0865 SN - 1063-6536 SS - 1063-6536 U6 - https://doi.org/10.1109/TCST.2018.2821656 DO - https://doi.org/10.1109/TCST.2018.2821656 N1 - Volltextzugriff für Angehörige der Hochschule Konstanz via IEEE Xplore möglich. IS - Published online: 10 Apr 2018 SP - 8 S1 - 8 ER -