TY - CHAP A1 - Höllthaler, Julia A1 - Hagl, Rainer T1 - Plattformunabhängige modellbasierte Entwicklung von hochdynamischen Antriebsregelungen T2 - MATLAB EXPO 2017 Deutschland, München, 27. Juni 2017 KW - Elektrische Antriebssysteme KW - Leistungselektronik  KW - hochdynamische Antriebsregelungen Y1 - 2017 ER - TY - CHAP A1 - Wittmann, Josef A1 - Hagl, Rainer A1 - Kennel, Ralph T1 - Hybrid Current and Acceleration Control of Servo Drives T2 - PCIM Europe 2017 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, Nürnberg N2 - A hybrid current and acceleration control is presented and shown to improve the load disturbance behavior of servo drives significantly without additional sensor effort. The feedback signal of the acceleration control loop is calculated from the position data of the motor encoder. Hence, position measuring errors influence this control loop and lead to speed ripple. Therefore, the presented design of the acceleration control loop considers both load sensitivity and position measuring errors. KW - Elektrische Antriebssysteme KW - Leistungselektronik  KW - Servo drives KW - Electrical drives Y1 - 2017 ER - TY - CHAP A1 - Wittmann, Josef A1 - Hagl, Rainer T1 - Gleichlaufschwankungen in Servoantrieben T2 - Fortschritte in der Antriebs- und Automatisierungstechnik (FAA), Stuttgart KW - Elektrische Antriebssysteme KW - Leistungselektronik  KW - Automatisierungstechnik Y1 - 2016 ER - TY - CHAP A1 - Wittmann, Josef A1 - Hagl, Rainer A1 - Kennel, Ralph T1 - Influence of Position Measuring Errors on Speed Ripple in Servo Drives T2 - 2016 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM, Capri, Italy N2 - Position measuring devices with sinusoidal measuring signals are widely used in position-controlled servo drives in industrial automation, e.g., for machine tools or semiconductor production machines. Usually, the feedback signal for the speed or velocity controller is calculated from the measured position. Therefore, position measuring errors affect these control loops. This study presents an analytic error model that considers non-ideal sinusoidal measuring signals with basic deviations (amplitude differences, offset errors, and phase shift) as well as signal harmonics. The model was used to systematically investigate the influence of signal quality and the number of signal periods from position measuring devices on speed ripple, across a wide range of speeds. A test stand with a high-resolution reference angle measuring device was used to confirm the results. KW - Elektrische Antriebssysteme KW - Leistungselektronik  KW - Automatisierungstechnik KW - Power Electronics KW - Electrical Drives KW - Automation and Motion Y1 - 2016 UR - https://doi.org/10.1109/SPEEDAM.2016.7525816 ER - TY - JOUR A1 - Wittmann, Josef A1 - Hagl, Rainer T1 - Positionsmessfehler in Servoantrieben JF - Antriebstechnik KW - Elektrische Antriebssysteme KW - Leistungselektronik  KW - Servoantrieb KW - Positionsmessung Y1 - 2016 VL - 2016 IS - 1-2 ER -