induction motor speed control methods

Ngày tải lên: 18/12/2013, 22:06

... closed loop control of a drive system consisting of matrix converter and induction machine. Slip control and field oriented control are the basic methods applied for closed loop control [4]. ... of modern direct control methods to the system with matrix converter and induction machine. In this paper, the most important direct control methods for matrix converter and induction machine ... basics of Direct Torque Control, Direct Current Control and Sliding Mode Control of matrix converters. I. INTRODUCTION In recent years many research results on control methods for matrix converters...

Ngày tải lên: 13/05/2014, 00:55

... designed to control a brush-less DC motor. However, by constructing a feedback loop that can detect the outputs of an induction motor, we can use this motor controller to control an induction ... responsible for the induction motor s many advantages are clearly explained. Wildi also presents the two types of induction motors: “the squirrel cage induction motor and the “wound motor . An explanation ... a control strategy that varies the frequency and voltage of the signal applied to the windings of the induction motor, while controlling the flux created in the air-gap of the induction motor. ...

Ngày tải lên: 27/10/2013, 23:15

... well-behaved speed- torque characteristics, and adaptability to various types of control methods. DC motors are classified as either integral-horsepower motors (≥ 1 hp) or fractional-horsepower motors ... root-locus domain. Mechatronics Kevin Craig DC Motor / Tachometer Closed-Loop Speed Control System 24 Mechatronics DC Motor / Tachometer Closed-Loop Speed Control System 1. Introduction This ... power amplifier. Motor speed is measured using an analog tachometer. Figure 2. Physical System Mechatronics Kevin Craig DC Motor / Tachometer Closed-Loop Speed Control System 5 Most...

Ngày tải lên: 25/01/2014, 13:20

Ngày tải lên: 15/10/2013, 16:10

Ngày tải lên: 14/12/2013, 12:15

Ngày tải lên: 17/12/2013, 14:15

Ngày tải lên: 17/12/2013, 18:06

... algorithm in the MATLAB Neural Network Toolbox. The performance of an open-loop volts/Hz speed- controlled induction motor drive has been evaluated with the ANN-based modulator and compared with that ... Silva, and M. P. Kazmierkowski, “A neural network based space vector PWM controller for voltage-fed inverter induction motor drive,” IEEE Trans. Ind. Applicat., vol. 36, pp. 1628–1636, Nov./Dec. ... 2000. [3] J. O. P. Pinto, B. K. Bose, and L. E. B. da Silva, “A stator flux oriented vector-controlledinduction motor drive with space vector PWM and flux vector synthesis by neural networks,” IEEE...

Ngày tải lên: 22/12/2013, 08:16

Ngày tải lên: 28/12/2013, 22:07

...  Overview of Gas Springs 2 . 21369 . 2007 . 1  Speed Control TM « SPC Gas Springs, cushioned 2486.12. FIBRO SPC Gas Springs Speed Control TM « are designed to reduce or eliminate the ... caused by the increased return travel speed in high speed presses (link drive presses). SPC Gas Springs feature an integral return travel delay which reduces the speed of the gas spring to 0.4 m/s ... 2 . 21370 . 2007 . 1  3 Speed Control TM « SPC Gas Springs, 2486.12. cushioned subject to alterations Force in daN at Piston...

Ngày tải lên: 22/01/2014, 02:20

... AC INDUCTION MOTORS Generally, induction motors are categorized based on the number of stator windings. They are: • Single-phase induction motor • Three-phase induction motor Single-Phase Induction ... squirrel cage induction motor is less than 5%. The actual full-load slip of a particular motor is dependant on the motor design. The typical base speed of the four pole induction motor varies ... advantages of AC induction motors. Various types of AC induction motors are available in the market. Different motors are suitable for different applications. Although AC induction motors are easier to...

Ngày tải lên: 25/01/2014, 13:20

... constant-slip control is a torque input control, a speed control is necessary for speed regulation. For the study shown in Figure 13.3-4, the torque command is calcu- lated in accordance with the speed control ... zero speed, when, approximately 250 ms into the study, the mechanical speed command is stepped Figure 13.6-2. Torque control loop. 504 INDUCTION MOTOR DRIVES taken. Another method of controlling ... described. 13.2.  VOLTS-PER-HERTZ CONTROL Perhaps the simplest and least expensive induction motor drive strategy is constant volt-per-hertz control. This is a speed control strategy that is based...

Ngày tải lên: 16/02/2014, 18:54

Ngày tải lên: 16/03/2014, 12:20

... the step height equal to 25 nm. At a constant speed of 30 µm/s (a), with a dynamic control (b), and with a dynamic control and at a variable speed (c). Figure 2. Comparative line traces for ... K τ . As a result, the speed of a closed-loop control system (that is, without loss of surface) is determined by the time constant 0 0 i G K τ . Feedback speed, the speed of the actuator, ... dynamic controller on ‘parachuting’ regions. Furthermore, we propose to use variable scan speed on ‘upward step’ regions, with the speed determined by the error signal of the closed-loop control. ...

Ngày tải lên: 21/06/2014, 17:20

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Ngày tải lên: 13/12/2013, 00:56

Ngày tải lên: 13/12/2013, 03:40

Ngày tải lên: 25/12/2013, 05:17