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This paper presents the design of Unscented Kalman Filter (UKF) for estimation of state space variables of permanent magnet synchronous machine (PMSM). The UKF is shown together with the field oriented speed control. At first, the position and the speed of PMSM are measured, and UKF is used only for a load torque estimation. It is indicated how differences in sampling time of the speed and the current...
This paper presents a differential algebraic approach of speed/position estimation for PMSM drive. The dynamic of the position is a function of the voltages, currents and their derivatives. In contrast to the other estimators like the Extended Kalman Filter (EKF) that is complex and computationally expensive, the differential algebraic estimator is simple with a one-dimension model. Simulations and...
This paper presents calculations and measurements for a permanent magnet synchronous machine (PMSM) with buried magnets. Due to wide field weakening capability and high utilisation of this external rotor machine, it can be especially used for traction applications. The steady-state torque is about 346 Nm and overload torque at three times nominal current is about 580 Nm. Fractional-slot concentrated...
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