0368814 20240103200010.620111208235959.9 000299032402033 10.1109/IECON.2011.6119446 6 s. www cav_un_epca*0368839978-1-61284-971-31553-572X1929-1934PiscatawayIEEE2011 sensorless control square root EKF PMSM drive cav_un_auth*0101207 Šmídl Václav Adaptivní systémy Department of Adaptive Systems AS AS UTIA-B Department of Adaptive Systems Ústav teorie informace a automatizace AV ČR, v. v. i. cav_un_auth*0256314 Peroutka Z. CZ http://library.utia.cas.cz/separaty/2011/AS/smidl-reduced-order square-root ekf for sensorless control of pmsm drives.pdf GAP102/11/0437 GA ČR CZ cav_un_auth*0273082 CEZ:AV0Z10750506 Performance of square-root extended Kalman filter (EKF) based on reduced order models for sensorless control of permanent magnet synchronous motor (PMSM) drives is studied. The reduced order model of PMSM has two-dimensional state vector comprising of: (i) electrical rotor speed, and (ii) electrical rotor position. These state quantities are estimated by the EKF without either speed or position sensor on the motor shaft. The reduction of the model order results in dramatic speed-up of calculation of the estimator which takes only a few tens of microseconds on a conventional fixed-point digital signal processor. Accuracy of the estimator is improved using square-root representation of the covariance matrix. Due to its low computationalrequirements, the proposed square-root EKF estimator is eligible for sophisticated diagnostics as well for sensorless control of PMSM drive in a wide range of industrial applications. Presented theoretical conclusions are verified by both simulations and experiments carried out on developed PMSM drive prototype of rated power of 10.7kW. cav_un_auth*0277016 IEEE Industrial Electronics, IECON 2011 - 37th Annual Conference on Melbourne 07.11.2011-10.11.2011 AU 2012 JA http://hdl.handle.net/11104/0203052 n.a. Proceedings Paper Engineering Industrial|Engineering Electrical Electronic 2011 000299032402033 WOS cav_un_epca*0368839 Proceedings of the 37th Annual Conference of the IEEE Industrial Electronics Society 978-1-61284-971-3 1553-572X 1929 1934 Piscataway IEEE 2011