01.v-f based speed control of induction motor using dspic30f2010
TRANSCRIPT
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Project Guide: Mrs.D.S.Khadtare
Project by-Sagar DeokarSarjerao Desai
Piyush Kand
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About Induction motor
Why speed control is necessary in induction motor?
Methods to achieve speed control
V/F speed control method
Introduction:
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Characteristics of Induction Motor
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AC to DC
Rectifier
DC
Link
Filter
MOSFET Based
Three Phase
Inverter
3 Phase
IM
DSPIC30F2010
(Pulse generator)
Driver Unit
Error signal VREF
VACT
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Components of Block diagramAC to DC Rectifier Conversion of sinusoidal
input to DC input
DC link filter Filtered waveform is obtained
without any noise
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MOSFET BASED 3 PHASE INVERTER
Inverter is used to convert DC to AC at any required voltage and frequency
MOSFET is used as a voltage controlled device
IGBT’s can also be used.
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Components of Block diagramV Active and V Reference Forms a closed loop system.
Sends error signal to controller.Driver Unit Used to provide 9 to 20 volts to switch the
MOSFET Switches of the inverter . Driver unit consists of:
1.Optocoupler 2.Capacitor
3.Supply4.Diode
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DSPIC30F2010 Controller Features16-bit MicrocontrollerProgram memoryRAM bytesOperating voltageI/O pinTimer
CONTROLLER CIRCUIT:-
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Output: SimulationHardware
Tools used:Matlab /Simulink Simulink, is used frequently in creating and
running simulations and sometimes to do feedback control while in the development or early testing stages.
OUTPUT & TOOLS:-
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Output & Tools:Orcade/Pspice personal simulation program with integrated
circuit used for electronic design automation.
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AC Induction motors are used in many industrial applications such as. • Appliances (washers, blowers, refrigerators,
fans, vacuum cleaners, compressors• HVAC (heating, ventilation and air
conditioning}• Industrial drives (motion control, centrifugal
pumps, and robotics)• Automotive control (electric vehicles)
APPLICATIONS:
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