Performance Evaluation of CKF Based Sensorless Vector Controlled PM Synchronous Motor Drive
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ORIGINAL ARTICLE
Performance Evaluation of CKF Based Sensorless Vector Controlled PM Synchronous Motor Drive Arabindo Chandra1 · Soumyajit Datta2 · Aritro Dey3 · Sumana Chowdhuri4 Received: 29 January 2020 / Revised: 20 September 2020 / Accepted: 10 November 2020 © The Korean Institute of Electrical Engineers 2020
Abstract Sensor-less vector control of Surface Mount Permanent Magnet Synchronous Motor (SPMSM) throughout the entire speed regime is a challenging problem in PMSM drive. This paper addresses this control problem and presents the design and simulation study of sensor-less vector control of SPMSM using Cubature Kalman filter (CKF) based rotor position and speed estimator. The use of CKF for speed and position estimation of PMSM is reported in recently literature. However, the results are not substantial. Position and speed estimation errors are quite large, also the estimated speed and position contain considerably large ripple. In the present work the performance of CKF observer in terms of position and speed estimation accuracy is significantly improved. The dynamic performance of the drive throughout the entire speed zone under variable load torque is also improved. Keywords PM synchronous motor · Vector control · Sensor-less control · Kalman filter · CKF · EKF
1 Introduction Rotor position information is necessary for vector control of PM Synchronous motor [1, 2]. Mechanical rotor position sensors like resolver or optical encoder can be used to detect the rotor position [3]. However, rotor position detection by processing the motor terminal voltages and currents without using the mechanical sensors are preferable due to its * Soumyajit Datta [email protected] Arabindo Chandra [email protected] Aritro Dey [email protected] Sumana Chowdhuri [email protected] 1
Electrical Engineering Department, Techno International New Town, Rajarhat, Kolkata, West Bengal 700156, India
2
Electronics and Instrumentation Engineering Department, Techno International New Town, Rajarhat, Kolkata, West Bengal 700156, India
3
Electrical Engineering Department, National Institute of Technology, Durgapur, West Bengal 713209, India
4
Applied Physics Department, University of Calcutta, 92 APC Road, Kolkata, West Bengal 700009, India
significant advantages like, reduction in cost and mounting space, improved reliability and robustness [1–4]. Considerable research effort has been made for sensor less rotor position detection of PM Synchronous motor [2–4]. The performance of sensor-less rotor position detection techniques can be judged by their position detection capability at stand still, low speed and high-speed range. For position estimation in standstill and low speed regime saliency-based rotor position estimation techniques work effectively. These techniques exploit the anisotropic properties of PMSM, introduced either by the saliency of the rotor or by the saturation of the stator iron [3–5]. In this technique a special, high frequency carrier signal is injected to the machine along w
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