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This The accurate current control is essential in high performance Interior Permanent magnet synchronous motors (IPMSM) drives. This paper proposes a predictive current control for a high accuracy and a fast dynamic response. The proposed predictive current control consists of the predictive current control and the Extended Kalman Filter (EKF). The Extended Kalman Filter provides the estimated extended...
The reliability of the PMSM drives is the one of critical factors in several industries, in particularly, the areas where the precise operation and/or high performance are required. This paper proposes a novel diagnosis scheme using Extend Kalman Filter (EKF), especially, in subject to the open-phase faults of the inverter switches. The stator resistances of PMSM are estimated by the EKF in real time...
This paper proposes a sensorless control strategy for the Interior Permanent Magnet Synchronous Motor (IPMSM) by using the parallel reduced-order Extended Kalman Filter (EKF). The sensorless control strategy is composed with two EKFs alternately computed every sampling period with a new model. The new model is based on the extended electromotive force (EEMF) which has a simple structure, making position...
This paper proposes a simple initial rotor position estimation method to improve the starting performance of sensorless control using back-EMF. The proposed method uses relative magnitudes of the current at a standstill which are in inverse proportion to the variation of the inductance of the stator winding due to saliency of the rotor. This method is easy to be implemented and can help to successfully...
The reliability of PMSM drives has been dealt with an important factor in industrial applications requiring a precise operation and high-performance. This paper proposes the fault diagnosis for open-phase faults of PMSM drives using an Extended Kalman Filter (EKF) and DC-link current information. The proposed fault diagnosis can be achieved without additional devices and distinguish where the open-phase...
This paper proposes a speed sensorless vector control system for a permanent magnet synchronous motor (PMSM) by using a parallel reduced-order extended Kalman filter. The proposed scheme can save computation time greatly and estimate rotor speed and position by using new algorithms according to driving regions. To verify the merit of the proposed scheme, a comparison of a new reduced-order EKF algorithm...
This paper investigates performances of an extended kalman filter (EKF)-based cost-effective drive system of a permanent-magnet synchronous motor (PMSM) for low-cost applications. In this paper, the EKF is used as a speed and position estimator and the motor is fed from a four-switch three-phase (FSTP) inverter instead of a conventional six-switch three-phase (SSTP) inverter. This configuration reduces...
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