The causes of position estimation delays and their effects on the sensorless control of permanent magnet synchronous motor drives are investigated. The position of a permanent magnet synchronous machine is estimated via the injection of high frequency voltage signals. The delays under investigation are due to the digital implementation of the control algorithm and to the digital filters adopted for decoupling the inspection signals from the fundamental components of the stator current measures. If not correctly modeled and compensated, such delays can reduce the performance of the control scheme. Experimental results are provided, proving the accuracy of the modeling approach and the effectiveness of the related compensation strategy
Position estimation delays in signal injection-based sensorless PMSM drives / Cupertino, F.; Guagnano, A.; Altomare, A.; Pellegrino, G.. - STAMPA. - (2012). (Intervento presentato al convegno 3rd IEEE International Symposium on Sensorless Control for Electrical Drives, SLED 2012 tenutosi a Milwaukee, WI nel September 21-22, 2012) [10.1109/SLED.2012.6422815].
Position estimation delays in signal injection-based sensorless PMSM drives
Cupertino, F.;Guagnano, A.;
2012-01-01
Abstract
The causes of position estimation delays and their effects on the sensorless control of permanent magnet synchronous motor drives are investigated. The position of a permanent magnet synchronous machine is estimated via the injection of high frequency voltage signals. The delays under investigation are due to the digital implementation of the control algorithm and to the digital filters adopted for decoupling the inspection signals from the fundamental components of the stator current measures. If not correctly modeled and compensated, such delays can reduce the performance of the control scheme. Experimental results are provided, proving the accuracy of the modeling approach and the effectiveness of the related compensation strategyI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
