0436868 20240103205248.420141204235959.9 000305748500020 10.1109/TIE.2011.2180273 8 s. P cav_un_epca*02532370278-00465911 (2012)4189-4196Institute of Electrical and Electronics Engineers Kalman filters Mathematical model AC motors 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/2012/AS/smidl-0436868.pdf CEZ:AV0Z10750506 This paper is concerned with a fixed-point implementation of the extended Kalman filter (EKF) for applications in sensorless control of ac motor drives. The sensitivity of the EKF to round-off errors is well known, and numerically advantageous implementations based on the square-root decomposition of covariance matrices have been developed to address this issue. However, these techniques have not been applied in the EKF-based sensorless control of ac drives yet. Specific properties of the fixed-point implementation of the EKF for a permanent-magnet synchronous motor (PMSM) drive are presented in this paper, and suitability of various square-root algorithms for this case is discussed. 2015 BC RVO:67985556 http://hdl.handle.net/11104/0240502 S AUTOMATIONCONTROLSYSTEMS|ENGINEERINGELECTRICALELECTRONIC|INSTRUMENTSINSTRUMENTATION 5.078 0.943 4.2 0.04925 1.241 17404 470 116 2.075 30.48 8.2 Q1 88.92 98.945 Q1 Q1* 2012 000305748500020 WOS cav_un_epca*0253237 IEEE Transactions on Industrial Electronics 0278-0046 1557-9948 Roč. 59 č. 11 2012 4189 4196 Institute of Electrical and Electronics Engineers