A Novel Method for Rotor Field-Oriented Control of Single-Phase Induction Motor

This paper presents a novel rotor field-oriented control (RFOC) method for asymmetrical single-phase induction motor (SPIM). It is shown in this paper that by using a suitable transformation matrix (TM) for stator current variables, the asymmetrical equations of SPIM are transformed into symmetrical equations. Based on this similarity, a novel vector conrol technique for SPIM is presented. Performance of the proposed method is assessed using MATLAB/SIMULINK software. Simulation results showed the excellence speed and torque responses obtained using the proposed technique

Switching FOC Method for Vector Control of Single-Phase Induction Motor Drives

This paper proposes a novel vector control method based on Rotor flux Field-Oriented Control (RFOC) for single-phase Induction Motor (IM) drives. It is shown that in a rotating reference frame, the single-phase IM equations can be separated into forward and backward equations with balanced structures. In order to accommodate for these forward and backward equations, a drive system consisting of two RFOCs that are switched interchangeably, is proposed. Alternatively, these two RFOC algorithms can be simplified as a single FOC algorithm. The analysis, controller design and simulation of the proposed technique showed that it is feasible for single-phase IM drive for high performance applications

High performance speed control of single-phase induction motors using switching forward and backward EKF strategy

The aim of this research is to provide a high performance vector control of single-phase Induction Motor (IM) drives. It is shown that in the rotating reference frame, the single-phase IM equations can be separated into forward and backward equations with the balanced structure. Based on this, a method for vector control of the single-phase IM, using two modified Rotor Field- Oriented Control (RFOC) algorithms is presented. In order to accommodate forward and backward rotor fluxes in the presented controller, an Extended Kalman Filter (EKF) with two different forward and backward currents that are switched interchangeably (switching forward and backward EKF), is proposed. Simulation results illustrate the effectiveness of the proposed algorithm

Speed control of sensorless rotor field oriented for faulty three-phase induction motor by using extended kalman filter

This research discusses d-q model and Rotor Flux Oriented Control (RFOC) method for faulty three-phase induction motor (three-phase induction motor when one of the stator phases is opened). In the controlling method, two transformation matrixes are applied to the equations of faulty three-phase induction motor. As a result, the equations of faulty three-phase induction motor become similar to the balanced mode. By employing some modifications in the conventional block diagram of balanced induction motor, controlling of faulty three-phase induction motor is possible. Additionally, Extended Kalman Filter (EKF) is used for rotor speed estimation. The main advantage of the proposed method is it can be employed for asymmetrical single-phase induction motor. Simulation and Experemental results demonstrate the validity and applicability of the method to improve performance of faulty three-phase induction motor