Permanent Magnet Synchronous Machines (PMSMs) have several advantages, such as high efficiency and low volume and weight, which make them attractive for aerospace applications and high performance servo drives. Matrix Converters (MCs) are an all-silicon alternative, with no bulky reactive elements, to the standard voltage source inverter. The most common control technique for such PMSMMC-fed dr...

In this paper, the classical Direct Torque Control (DTC) of Induction Motor (IM) using an open loop pure integration suffers from the well-known problems of integration especially in the low speed operation range is detailed. To tackle this problem, the IM variables and parameters estimation is performed using a recursive non-linear observer known as EKF. This observer is used to estimate the s...

Brushless dc motors are widely used in many industrial applications due to their high efficiency, high power density and ease of control. In this paper, sensorless direct torque control (DTC) of bldc motor is implemented using fuzzy logic. In actual DTC both torque and stator flux linkage is controlled. In the proposed system, the control of stator flux linkage is avoided because every commutat...

Fault Tolerant Control (FTC) systems are crucial in industry to ensure safe and reliable operation, especially of motor drives. This paper proposes the use of multiple controllers for a FTC system of an induction motor drive, selected based on a switching mechanism. The system switches between sensor vector control, sensorless vector control, closed-loop voltage by frequency (V/f) control and o...

This paper proposes a sensorless control strategy for permanent magnet synchronous generators (PMSGs) in variablespeed wind turbine systems (WTSs). The proposed scheme uses an extended Kalman filter (EKF) for estimation of rotor speed and position. For EKF design, the nonlinear state space model of the PMSG is derived. Estimation and control performance of the proposed sensorless control method...

The purpose of this study is to solve defects of the existing control strategy long convergence time, sliding mode chattering and so on. For Sensorless Brushless DC motor control strategy, a modified extended Kalman state correction estimation scheme is proposed, and dual mode high-order nonsingular terminal hybrid sliding mode control technology is put forward. TMS320F2812DSP core controller a...

Reducing the cost of the motor drive is desirable for low cost applications. A simple and cost-effective position sensorless control for radial-flux permanent magnet brushless DC (BLDC) motor drives using single current sensor is proposed in this paper. It is based on the generation of quasi-square current waveforms, using only one current controller for the three phases. Unlike the conventiona...

This paper presents sensorless rotor position estimation of Switched Reluctance Motor (SRM) where the position is to be determined by Adaptive Neuro Fuzzy Inference System (ANFIS). The rotor position sensing is very essential for the SRM for its efficient operation. Previously rotor position sensors are used to estimate the position of rotor for SRM. Due to its drawback the sensors have to be r...

− Accurate knowledge of stator resistance is of utmost importance for correct operation of a number of speed sensorless induction motor control schemes in the low speed region. Since stator resistance inevitably varies with operating conditions, stable and accurate operation at near-zero speed requires an appropriate on-line identification algorithm for the stator resistance. The paper proposes...