Hyun-Woo Sim, June-Seok Lee, and Kyo-Beum Lee, “On-line Parameter Estimation of Interior Permanent Magnet Synchronous Motor using an Extended Kalman Filter,” Journal of Electrical Engineering & Technology, vol. 9, no. 2, pp. 600–608, Mar. 2014. -SCIE > Paper

This paper presents estimation of d-axis and q-axis inductance of an interior permanent magnet synchronous motor (IPMSM) by

using an extended Kalman filter (EKF). The EKF is widely used for control applications including the motor sensorless control and

parameter estimation. The motor parameters can be changed by temperature and air-gap flux. In particular, the variation of the

inductance affects torque characteristics like the maximum torque per ampere (MTPA) control. Therefore, by estimating the

parameters, it is possible to improve the torque characteristics of the motor. The performance of the proposed estimator is verified

by simulations and experimental results based on an 11kW PMSM drive system.