Abstract
This paper introduces a sensorless nonlinear control
scheme for controlling the speed of a permanent magnet
synchronous motor (PMSM) driving an unknown load torque.
The states of the motor and disturbance torque are estimated via
an extended nonlinear observer avoiding the use of mechanical
sensors. The control strategy is an exact feedback linearization
law, with trajectory tracking evaluated on estimated values
of the PMSM states and the disturbance torque. The system
performance is evaluated by simulations.
I. I ....etc

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Abstract:
During a long time, permanent magnet synchronous motor (PMSM) were only reserved for some
specific applications, however, recently, these machines are becoming more used due to the powerful magnetic
characteristic of the rare earth, being used in different areas. Recently several researchers have proposed
implementations combining the use of permanent magnet synchronous motor with the direct torque control (DTC)
technique offering a quick and precise control. The present work combines these techniques and it proposes th ....etc

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PRESENTED BY
R. RADHIKA
B. USHA RANI


ABSTRACT
Permanent magnet synchronous motor (PMSM) has been widely used in high performance drive applications for its advantages such as compactness, high efficiency, reliability and suitability to environment. Due to its high power density and smaller size, PMSM has evolved as the preferred solution for speed and position control drives on machine tools and robots. A Permanent Magnet Synchronous Motor (PMSM) is a motor that uses permanent magnets to produce the air g ....etc

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Optimal Designs and Comparison of the Doubly
Salient Permanent Magnet Machine and
Flux-reversal Machine in Low-speed Applications

Abstract
The subject of this is to optimize the design and to compare
The performances of a low-speed doubly salient permanent magnet machine with
Those of a low-speed flux-reversal machine devoted to direct drive applications. The
Optimization, focused on the maximization of the machines mass-to-torque ratio,
is done by a genetic algorithm combined with the finite-element method (FEM) ....etc

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Kindly send me the paper titiled VECTOR CONTROL DRIVE OF PERMANENT MAGNET SYNCHRONOUS MOTOR USING MATLAB/SIMULINK to understand the modelling and contrrol of PMSM.

Thanks and Regards,
Hajmunnisa.T


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Simple Non-Linear Magnetic Analysis for Permanent-MagnetMotors



The need


In the process of designing a new motor/generator;
Method of Finite Element Analysis is used

The disadvantage - Computing time

Alternate option – Nonlinear Magnetic Analysis on an equivalent magnetic circuit of the whole machine

Because of Magnetic Saturation in Stator teeth, the analysis becomes Nonlinear.



The procedure



The permeance values of t ....etc

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characteristics of permanent magnet synchronous generator ....etc

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Permanent Magnet Synchronous Machine Model for Real- Time Simulation



INTRODUCTION
IN recent years, Permanent Magnet Synchronous Motors
(PMSMs) are increasing applied in several areas such as
traction, automobiles, robotics and aerospace technology .
Accurate digital simulation tools are necessary to evaluate
their field performance particularly when they are driven with
solid-state drives connected to larger electrical networks. One
of the areas of ....etc

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Hi friends.im a engineerng student of eee branch.my topic is DSP BASED SPEED CONTROL OF PERMANENT MAGNET BRUSHLESS DC MOTOR.i need full report and ppt on this topic.and what questions will ask on this topic.please give me reply by tomorow morning. ....etc

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Abstract
This paper present a speed control technique for effectively meeting the motion control objective which is
a permanent magnet synchronous motor (PMSM) based on an embedded inside current tracking objectives. The tracking
adaptive backstepping technique. The proposed stabilizing controllers described in this paper fall into the category of a
feedback law for the PMSM is shown to be globally full state-feedback controller with system uncertainty. In this
asymptotically stable in the context of Lyapunov theory. It takes sch ....etc

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