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Flywheel and induction motor.Sizing for Torque Fluctuation Optimization in Reciprocating Compressor

Journal of Mechanics Engineering and Automation 2013年第9期3卷 543-550页

作者： Java Atayde Pedreira Department of Rotating Machinery Technology Petrobras S/A Rio de Janeiro 20031-912 Brazil

Reciprocating compressors are prone to high cyclic loads. The high required performance relies on a good design focusing a torque oscillation applied by the driver. In the first part of this job, dynamic model of reciprocating is presented. Newton-Euler method is used to get motion equations. In the second part, numerical results are presented. Simulations are used for calculating the driving moment as function of crankshaft motion. These results illustrate the effect of the flywheel and motor.on its dynamics and are used for induction motor.selection and flywheel sizing for optimizing crankshaft torque fluctuation and power consumption reduction.

关键词： Flywheel reciprocating compressor torsional vibration induction motor.

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Robust Sliding Mode Control Using Adaptive Switching Gain for induction motor.

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International Journal of Automation and computing 2013年第4期10卷 303-311页

作者： K. Jamoussi L. Chrifi-Alaoui H. Benderradji A. El Hajjaji M. Ouali Laboratory Computer and Embedded Systems National Engineering School University of Sfax Laboratory of Innovative Technology University of Picardie Jules Verne University of M'sila Electrical Engineering Department Laboratory of Modeling Information and Systems University of Picardie Jules Verne France

A robust sliding mode approach combined with a field oriented control （FOC） for induction motor.（IM） speed control is presented. The proposed sliding mode control （SMC） design uses an adaptive switching gain and an integrator. This approach guarantees the same robustness and dynamic performance of traditional SMC algorithms. And at the same time, it attenuates the chattering phenomenon, which is the main drawback in actual implementation of this technique. This approach is insensitive to uncertainties and permits to decrease the requirement for the bound of these uncertainties. The stability and robustness of the closed- loop system are proven analytically using the Lyapunov synthesis approach. The proposed method attenuates the effect of both uncertainties and external disturbances. Experimental results are presented to validate the effectiveness and the good performance of the developed method.

关键词： Sliding mode control field oriented control (FOC) practical validation switching gain induction motor.

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Rotor Speed Estimation Using Zero-Crossing Times Signal of Stator Current

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第二十六届中国控制会议

作者： Ghanbarian M.M. Mohammadi A. Kavehnia F. Keivani H. Askari M.R. Mohammadi S. Islamic Azad University

ISBN: (纸本)7900719229

The purpose of this study is to illustrate a new method for sensorless vector control of induction *** approach uses Zero-Crossing Times（ZCT）signal of stator current to estimate rotor *** signal contains useful information which can be used for estimation of rotor speed and *** have used this information for online estimation of rotor *** avoid time consuming Fast Fourier Transformation（FFT）analysis of ZCT signal,we have used switchable high order Butterworth Filters in order to extract rotor *** result has expressed good performance of this simple and inexpensive sensorless vector control of induction motor..

关键词： Sensorless Vector Control Zero-Crossing Time Speed Estimation induction motor.

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Identification of the Rotor Time Constant in induction Machines without Speed Sensor

Identification of the Rotor Time Constant in Induction Machi...

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CES/IEEE 5th International Power Electronics and Motion Control Conference

作者： J.N.Chiasson M.Bodson L.M.Tolbert The University of Tennessee ECE Department Knoxville USA The University of Utah ECE Department Salt Lake City USA The University of Tennessee ECE Department Knoxville USA

＜正＞A differential-algebraic method is used to estimate the rotor time constant TR of an induction motor.without measurements of the rotor speed/position. The method consists of solving for the roots of a polynomial equation in TR whose coefficients depend only on the stator currents, stator voltages, and their derivatives. Experimental results are presented.

关键词： Rotor Time Constant Sensorless Speed Observer induction motor.

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