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008 130924t2012 my p f m 000 0 eng d
020 _aTHE0006141(Local)
039 9 _a201905151559
_baida
_c201309241649
_dtraining
_y201309241235
_ztraining
040 _aUMP
090 _aTJ220 .A55 2012 rs Bc.
100 0 _aAnis Farhana Mohd Roslan
245 1 0 _aMotor control-speed /
_cAnis Farhana Mohd Roslan
260 _aKuantan, Pahang :
_bUMP,
_c2012
300 _axv, 35 p. :
_bill. (some col.) ;
_c30 cm. +
_e1 CD-ROM
502 _aProject paper (Bachelor of Electrical Engineering (Power System)) -- Universiti Malaysia Pahang - 2012
504 _aBibliography : p. 33-34
520 3 _aAn induction motor can be controlled by using various methods either it is closed loop or open loop. There are many techniques of controlling the speed either by varying the slip by changing rotor resistance or terminal voltage and varying synchronous speed by changing number of poles or supply frequency. Changing of input frequency is more reliable as it is applicable to all induction motors. The speed of the motor can be controlled by using the pulse width modulation (PWM) method. This paper is mainly about the open-loop speed control method for a single phase induction motor. An open loop controller which is also known as the non-feedback controller is a type of controller that computes its input into a system using only the current state and its model of the system. The control scheme is based on the constant volts per hertz (V/f) method. To verify the functionality of the controller, a full working prototype is built. The prototype consists of an IGBT Full-Bridge Inverter, a motor and an analog controller with PWM. By varying the frequency fed into the PWM unit, the speed of the motor can be controlled. The speed of the motor increased steadily based on the frequency supplied by the control signal until it reached the desired speed and remained constant at the speed.
650 0 _aLinear control systems
999 _aVIRTUA40
_c4291
_d4297
999 _aVTLSSORT0080*0200*0400*0900*1000*2450*2600*3000*5020*5040*5200*6500*9992