single phase ac motor speed control schematic
Design and Implementation of a Three-Phase Induction Motor Control Scheme
... detect the 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 ... nominal speed. However, outside the rated speed operation, the flux has to be decreased like an inverse function of speed. By weakening the rotor flux, the induction machine can reach speeds ... to develop a control strategy for the DSP controller that controls the torque production within the induction machine. However, there is no great emphasis placed on precise torque control. ...
Ngày tải lên: 27/10/2013, 23:15
Tài liệu Mechatronics DC Motor / Tachometer Closed-Loop Speed Control System ppt
... 1.0 A 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 Speed Control System ... Tachometer Closed-Loop Speed Control System 11 The DC motor/ tachometer system has a single input and a single output. The input is the voltage applied across the two motor terminals. The output ... 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...
Ngày tải lên: 25/01/2014, 13:20
Single phase uninterruptible power supply based on z source inverter
... the capacitor volt- age of the Z-source inverter drops significantly as well; thus, the voltage difference between the reference u ∗ C and the actual capacitor voltage u C is sent to the PI controller ... 2007. [7] P. K. Jain, J. R. Espinoza, and H. Jin, “Performance of a single- stage UPS system for single- phase trapezoidal-shaped AC- voltage supplies,” IEEE Trans. Power Electron., vol. 13, no. 5, ... D. Lorenz, Control topology options for single- phase UPS inverters,” IEEE Trans. Ind. Appl., vol. 33, no. 2, pp. 493–501, Mar./Apr. 1997. [16] P. Mattavelli, “An improved deadbeat control for...
Ngày tải lên: 03/01/2014, 19:12
Tài liệu Speed Control SPC GAS SPRINGS, cushioned pptx
... . 1 Speed Control TM ô SPC Gas Springs, cushioned 2486.12. FIBRO SPC Gas Springs Speed Control TM ô are designed to reduce or eliminate the sheet metal retainer bounce back which is ... 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 ... a soft arrival for the sheet metal retainer. Benefits of the Speed Control TM ô SPC Gas Springs, cushioned: Prevents bounce back of sheet metal retainer. Increased productivity through...
Ngày tải lên: 22/01/2014, 02:20
Chapter 9 unbalanced operation and single phase induction machines
... SINGLE- PHASE INDUCTION MACHINES 367 Figure 9.8-5. Free-acceleration characteristics of a capacitor-start single- phase induction motor. Figure 9.8-4. Average steady-state torque versus speed ... rated speed. This is referred to as a capacitor-start capacitor-run machine. Although we may have made it appear that the split -phase machine is the type of two -phase machine that is used in single- phase ... AND SINGLE- PHASE INDUCTION MACHINES Figure 9.8-3. Steady-state torque versus speed characteristics with a capacitor in series with one winding of the two -phase induction machine. series capacitor...
Ngày tải lên: 16/02/2014, 18:48
Chapter 14 permanent magnet AC motor drives
... or nonsinusoidal back emf waveforms. Machines with sinusoidal back emfs may be controlled so as to achieve nearly con- stant torque; however, machines with a nonsinusoidal back emf may be less ... nominal operating speed of 200 rad/s (mechanical). 542 PERMANENT-MAGNET AC MOTOR DRIVES The structure of the control algorithms determines the type of permanent-magnet ac motor drive, of which ... structure of the controls Figure 14.1-1. Permanent-magnet ac motor drive. Electrical System Command Signal Power Converter Control PM AM Mechanical System Sensors 566 PERMANENT-MAGNET AC MOTOR DRIVES ...
Ngày tải lên: 16/02/2014, 18:54
HOBBYKING BRUSHLESS ELECTRONIC SPEED CONTROL FOR CAR OR TRUCK potx
Ngày tải lên: 16/03/2014, 12:20
Single phase fully controlled rectifier
... a single phase fully controlled converter the _________ of an uncontrolled converters are replaced by ____________. ii) In a fully controlled converter the load voltage is controlled by controlling ... voltage harmonic in a single phase fully controlled bridge converter is _________ the input supply frequency. v) The input displacement factor of a single phase fully controlled bridge converter ... 183.18 Volts ∴ 183.18 Motor speed N = ì1500 = 1340 RPM 205 . Summary ã Single phase fully controlled converters are obtained by replacing the diodes of an uncontrolled converter with...
Ngày tải lên: 14/05/2014, 22:32
Single phase uncontrolled rectifier
... split supply full wave single phase rectifier offers as good performance as possible from a single phase rectifier in terms of the output voltage form factor and ripple factor. They have a few ... rectifier circuit. ã Reaction of the rectifier circuit upon the ac network, reactive power requirement, power factor, harmonics etc. ã Rectifier control aspects (for controlled rectifiers only) ... poorer. iii) In both single phase half wave and full wave rectifiers the form factor of the output voltage approaches _________ with capacitive loads provided the capacitance is ________ enough....
Ngày tải lên: 14/05/2014, 22:33
FPGA BASED SVPWM CONTROLLER FOR THREE PHASE AC AC MATRIX CONVERTER
... [4] Lászó Huber and Dusan Borojevic, “Space vector modulated three -phase to three -phase matrix converter with input power factor correction” IEEE Transactions On Industrial Applications, Vol.31, ... Transactions on Power Electronics, Vol. 4, no. 1, pp.101-112, January 1989. [3] D. casadei - G.gandi – G.serra – A.Tani, “Space vector control of matrix converters with unity input power factor ... eliminates reactive elements,” Proceedings of Powercon 7, San Diego,CA, 1980, pp. E3-1-E3-15. [2] A. Alesina, M. Venturini, “Analysis and Design of Optimum- Amplitude Nine-Switch Direct AC- AC Converters”,...
Ngày tải lên: 14/05/2014, 22:37
báo cáo hóa học:" Scan speed control for tapping mode SPM" docx
... 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, is limited ... control [1, 2]. Let us find the maximum scan speed without loss of surface. The transient response of the loop control to a capacitive displacement sensor output (if the high-frequency pole ... line traces of the calibration grating with the step height equal to 25 nm. At a constant speed of 30 àm/s (a), with a dynamic control (b), and with a dynamic control and at a variable speed...
Ngày tải lên: 21/06/2014, 17:20
