-------------------------------------------------------ABSTRACT---------------------------------------------------A low-time-consuming and low-cost sensorless-control algorithm for high-dynamic performance permanent-magnet synchronous motors, both surface and internal permanent-magnet mounted for position and speed estimation is introduced. This control algorithm is based on the estimation of r...

This paper considers the carrier based signal injection method in three shunt sensing inverter (TSSI) for sensorless motor control and analyzes the loss according to the injection axis of the voltage signal. To remove both phase current and rotor position sensors, sensorless method and phase current reconstruction method can be simultaneously considered. However, the interaction between two met...

This paper presents a novel sensorless control method of permanent magnet synchronous motors at standstill and low speed based on a low-frequency current signal injection. The approach superimposes a persistent LF current signal into the estimated d-axis to get the rotor position error angle-related signal by detecting the corresponding voltage response and current response. Then the rotor posi...

In this paper, a novel sensorless nonlinear speed control for a permanent magnet synchronous motor (PMSM) driving an unknown load torque is developed and integrated with the vector control scheme. An extended nonlinear state observer with parameter adaptive scheme is used to estimate the states of the motor and disturbance torque avoiding the use of mechanical sensors. The parameter identified ...

Sensorless load and position estimation of linear reluctance actuator is investigated in this paper. Due to wide application of these actuators in several industrial automation systems, sensorless techniques are significant to decrease the cost of the system and increase the reliability in the closed-loop control systems. In this paper, based on dynamic model of the actuator and the characteris...

This paper focuses on three commonly used sensorless methods based on high-frequency signal injection; namely, the rotating sinusoidal injection in the stationary reference frame, the pulsating sinusoidal injection in the estimated synchronous reference frame, and the pulsating square wave injection in the estimated synchronous reference frame. Although these methods have found applications in ...

The performance of Switched Reluctance (SR) motor drive systems using rotor position transducers has been satisfactory, but the potential of SR drives for providing economical, robust, compact and reliable drive systems which can operate in harsh environments, has made the development of sensorless system desirable. A system which can detect rotor position without a conventional position sensor...

In the speed sensorless vector control system, the amended method of estimating the rotor speed about model reference adaptive system (MRAS) based on radial basis function neural network (RBFN) for PMSM sensorless vector control system was presented. Based on the PI regulator, the radial basis function neural network which is more prominent learning efficiency and performance is combined with M...

This paper deals with the application of a new neuron, the TLS EXIN neuron, to AC induction motor drives. In particular, it addresses two important subjects of AC induction motor drives: the on-line estimation of the electrical parameters of the machine and the speed estimation in sensorless drives. On this basis, this work summarizes the parameter estimation and sensorless techniques already d...

Full power rating three-level neutral-point clamped (3L-NPC) back-to-back power converters seem promising for wind turbine systems with high power. Direct Model Predictive Control (DMPC) is an attractive technique, in particular, for multi-level converters. Voltage sensorless control makes the voltage measurements obsolete. This work proposes and verifies an Initial Bias Compensation based Virt...