IMPLEMENTATION OF DSP BASED SENSORLESS CONTROL WITH
DIRECT BACK-EMF DETECTION METHOD FOR BLDC MOTOR

ACKNOWLEDGEMENTS
I am greatly indebted and respectful to my supervisor and advisor, Dr. K.S. Rama Rao,
for his guidance and support throughout the completion of this thesis. His rigorous
attitude to do the research and inspiring thinking to solve problems are invaluable for
my professional career.
I would like to express my heartfelt thanks to Dr Soib Taib for his time and
efforts he spent as my co-supervis ....etc

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SENSORLESS TRACKING SYSTEM FOR THE SOLAR PANEL BY TIMED MOVEMENT
ABSTRACT

The main objective of this project is to develop an embedded system which will track the sun using time.
In this work we are going to develop embedded system which will sense the sun direction and move the solar panel using servo motor to the sun direction using RTC clock. In this work we use microcontroller, RTC and motor to give any other commands. These solar panels are very much useful for onboard satellite applications. Controller i ....etc

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Design and implementation of a novel
high-performance sensorless control system
for interior permanent magnet
synchronous motors

J.-L. Chen T.-H. Liu C.-L. Chen



Abstract:
This study proposes a novel high-performance rotor position estimator for an interior permanent magnet synchronous motor (PMSM). By suitably processing the mathematical model of the motor, a systematic method of the rotor position estimating method has been developed. The proposed control system can be used in ....etc

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Abstract
In this paper, a sensorless induction motorparameter identification is presented. Sensorless control employsa variety of estimators and observers of motor speed, torque andfluxes, and accurate information about motor parameters iscrucial to obtain a high performance control. The parameters ofthe induction motor equivalent circuit are obtained by means ofDC an AC tests using the voltage-source inverter. When theseparameters are estimated a closed loop flux estimator and an openloop speed estimator are implemented to determine ....etc

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Sensorless Indirect Stator Field Orientation Speed Control for Single-Phase Induction Motor Drive
Abstract
The industrial requirements for the control of an inductionmachine without a mechanical sensor continue to be ofinterest, as evidenced by the most recent publications. The focusis on improvements of control without a mechanical sensor. A newmethod for the implementation of a sensorless indirect stator-fluxorientedcontrol (ISFOC) of a single-phase induction motor (SPIM)drive is proposed in this paper. The proposed method of rotor ....etc

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A Robust Sensorless Direct Torque Control of Induction Motor Based on MRAS and Extended Kalman Filter
Presented By:
Mustapha MESSAOUDI, Habib KRAIEM, Mouna BEN HAMED, Lassaad SBITA and Mohamed Naceur ABDELKRIM

Abstract
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 pe ....etc

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This article is presented by:
O. Barambones∗, A.J. Garrido∗, F.J. Maseda∗ and P. Alkorta†Speed Sensorless Vector Control of Induction Motors Based on
Robust Adaptive Variable Structure Control Law

ABSTRACT
A novel sensorless adaptive robust control law is proposed to improve the trajectory tracking performance of induction motors. The proposed design employs the so called vector (or field oriented) control theory for the induction motor drives and the designed ....etc

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Position Sensorless Control of Switched Reluctance Generator for Wind Energy Conversion

Abstract
This paper presents a novel sensorless control system of switched reluctance generator (SRG) in order to reduce cost, simplify system structure and increase reliability. Considering nonlinear characteristics of SRG and robustness of sliding mode observer (SMO), sensorless control method of SRG based on SMO is proposed and analyzed. For wind energy conversion system (WECS), a voltage-source PWM inverter is used to make power output of SR ....etc

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IMPLEMENTATION OF DSP BASED SENSORLESS CONTROL WITH
DIRECT BACK-EMF DETECTION METHOD FOR BLDC MOTOR

ABSTRACT
This thesis presents a back EMF sensing scheme, direct back EMF detection, for
sensorless Brushless DC (BLDC) motor drives with a DSP based controller. Using this
scheme, the motor neutral voltage is not needed to measure the back EMF. Instead the
method utilizes the high-speed A/D converter channels, which are available on a DSP
controller. The true back EMF of the floating motor winding is detecte ....etc

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please sir send me the sensorless induction motor ppt ....etc

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