... 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. ... outputs of an induction motor, we can use this motor controller to control an induction machine. ã TMS320F243 DSP controller. This is manufactured by the Texas Instruments Company and is one of ... the induction motor s many advantages are clearly explained. Wildi also presents the two types of induction motors: “the squirrel cage inductionmotor and the “wound motor . An explanation of...
... con-sistent pattern of the effect of smoking on risk of can-cer deaths. TABLE 1. Characteristics of cases and two control groups: Population -based case -control study of smoking on risk of cancer deaths ... husband and wife in control group 1 in terms of to-bacco use; (3) the causes of death in control group 2 were unrelated to tobacco exposure. Thus two sepa-rate population -based case -control studies ... prevalence of smoking between male living spouses of women who died of any cause and those spouses of women who died of some other causes other than smoking related causes. The preva-lence of smoking...
... anopen-loop volts/Hz-controlled inductionmotor drive and eval-uated thoroughly for steady-state and dynamic performancewith a conventional DSP -based SVM. The performance of the ANN -based modulator ... anopen-loop volts/Hz speed- controlled inductionmotor drive hasbeen evaluated with the ANN -based modulator and comparedwith that of a conventional DSP -based modulator, and showsexcellent performance. ... neural network.The performanceof acom-plete volts/Hz-controlled drive system is then evaluated with theANN -based SVM and compared with the equivalent DSP -based drive control system. Both static...
... Search rules of the various cases of operation are summarized in the table I. Fig.4. Operation modes of buck boost converter 2Unlike constant -speed control, a variable -speed control can ... Fig.5. Probable displacement of the operating point between the operating power and the maximum power, in the event of change of the wind speed, the controlof the buck-boost converter ... simple linear circuit can represent each of the two states where the switches in the circuit are replaced by their equivalent circuit during each state. The circuit diagram for each of the two...
... efficiency control strategies of an induction motor, ” IEEE Trans. Ind. Appl., vol. 22, no. 5, pp. 820–827, Sep./Oct. 1986. [2] M. Depenbrock, “Direct self -control of inverter-fed induction machine,” ... reported to controlof BLDC motor using six-switch three-phase inverter (SSTPI). Direct torque control (DTC) scheme was first proposed by Takahashi [1] and Depenbrock [2] for induction motor drives ... torque controlof brushless DC motorbased on back-EMF vector’ , ELECTROMOTION. pp. 128-138, 2009. [7] S. B. Ozturk and H. A. Toliyat, “Sensorless Direct Torque and Indirect Flux Controlof Brushless...
... programming -based controlof brushless motors,”IEEE Trans. Control Syst. Technol., vol. 11, no. 1, pp. 139–146, Jan. 2003.[19] S. J. Kang and S. K. Sul, “Direct torque controlof brushless dc motor ... author of the book DSP -Based ElectromechanicalMotion Control (CRC Press, 2003), and the Co-Editor of Handbook of ElectricMotors—2nd Edition (Marcel Dekker, 2004).Dr. Toliyat is a Fellow of the ... high-efficiency control strategies of an induction motor, ” IEEE Trans. Ind. Appl., vol. 22,no. 5, pp. 820–827, Sep./Oct. 1986.[25] M. Depenbrock, “Direct self -control of inverter-fed induction machine,”IEEE...
... only the torque is controlled without speed control, the time range ofcontrol system under transient state is selected short. The motor speeds up to a very large value if the motor is run longer ... voltage, hysteresis bandwidth, motor parameters especially the winding inductance, motor speed, snubber circuit, and the amount of load torque The best way to control the stator flux linkage ... to control the stator flux linkage amplitude. On the other hand, rotational speed of the stator flux linkage can be easily controlled, therefore fast torque response is obtained. The size of...
... angular speed ωc. Mechatronics Kevin Craig DC Motor / Tachometer Closed-Loop SpeedControl System 12 7. Control Design The objective of the exercise is to control the angular speedof the ... A schematic diagram of a DC motor is shown in Figure 6. Figure 6. Schematic Diagram of a DC Motor Mechatronics Kevin Craig DC Motor / Tachometer Closed-Loop SpeedControl System 10 ... Furthermore, the controlof AC actuators was a difficult task at that time. Today, AC motors are also widely used as servo-motors, employing modern methods of phase-voltage control and frequency control...
... 28. 63 Proceedings of the 43rd Annual Meeting of the ACL, pages 58–65,Ann Arbor, June 2005.c2005 Association for Computational LinguisticsEmpirically -based Controlof Natural Language Generation ... any control mechanisms within the generator: e.g. controlling combinato-rial explosion of modifier attachment or adjective order. In this paper we present an empirically -based method for controlling ... comes from one of the samples of 1,400 observations. 62 To illustrate our approach we describe a system for controlling ‘style’ in the sense of Biber (1988) during the generation of short texts...
... loop control [1],[5]. Another topic of great interest is the closed loop control of a drive system consisting of matrix converterand induction machine. Slip control and field oriented control ... Included arethe basics of Direct Torque Control, Direct Current Control and Sliding Mode Controlof matrix converters. I. INTRODUCTIONIn recent years many research results on control methods for ... Convertersin Direct Torque ControlofInduction Machines,” IEEE Trans.Ind. Electron., vol. 48, pp. 1057-1064, December 2001.[10] M. Depenbrok, “Direct Self -Control (DSC) of Inverter-Fed Induction Machine”,...
... phosphorylation of eIF-2α and inhibition of translation caused by the expression of HCV polyproteinFigure 7PKR mediates phosphorylation of eIF-2α and inhibition of translation caused by the expression of ... lev-els of apoptosis were similar to those obtained after theexpression of PKR from VV-PKR, used as positive control. The levels of apoptosis induced by VT7-HCV7.9 afteraddition of IPTG, were ... translational control and induction of apoptosis. These two pathways are likely to limit the rep-lication capacity of HCV. Thus, the virus-cell systemdescribed here highlights the relevance of the...
... understanding of the mechanismunderlying speech motor control. However, there is a lack of literature in quantitative measures ofmotor control, which may potentially characterize the nature of the ... study of speech motor control in children with CP. The lack of this type of research on CP children may be due to the technicaldifficulty of managing movement artifacts due to heador trunk control ... nature of orofacial motor impairments which degrade fine motor performance[22]. A research has reported that the most frequentabnormalities of subjects with athetoid CP includedlarge ranges of...
... proposed -based method produced the best perform-ance with an average accuracy of 96.5%, while the face- based method had an accuracy of 87.5% and the head-band -based method had an accuracy of 88%. ... http://www.jneuroengrehab.com/content/6/1/33Page 4 of 17(page number not for citation purposes)Our system is described in Figure 2 and specification of the components is illustrated in Table 2.Overview of Vision -based Control SystemThe ... CentralPage 1 of 17(page number not for citation purposes)Journal of NeuroEngineering and RehabilitationOpen AccessResearchVision based interface system for hands free controlof an intelligent...