UNIT-5 SPECIAL MACHINE DRIVES SWITCHED RELUTANCE MOTOR DRIVE

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Presentation transcript:

UNIT-5 SPECIAL MACHINE DRIVES SWITCHED RELUTANCE MOTOR DRIVE BLDC MOTOR DRIVE STEPPER MOTOR DRIVE SWITCHED RELUTANCE MOTOR DRIVE

STEPPER MOTOR 5/14/2019

STEP ANGLE 5/14/2019

RESOLUTION & STEPPING ERROR 5/14/2019

POSITION ACCURACY 5/14/2019

MOTOR SPEED 5/14/2019

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CLASSIFICATION OF STEPPER MOTOR PM STEPPER MOTOR VR STEPPER MOTOR HYBRID MOTOR TYPES OF STEPPER MOTOR 5/14/2019

VARIABLE RELUCTANCE MOTOR PERMANENT MAGNET STEPPER MOTOR HYBRID MOTOR ONLY THE STATOR HAS THE WINDINGS THERE IS NO WINDING IN ROTOR THE ROTOR HAS FERROMAGNETIC POLE THE ROTOR HAS SALIENT POLES PERMANENT MAGNET STEPPER MOTOR THE ROTOR HAS THE PERMANENT MAGNET THE ROTOR HAS PROJECTIVE POLES HYBRID MOTOR THIS MOTOR HAVING THE FEATURES OF VR STEPPER MOTOR &PM STEPPER MOTOR THERE NO WINDINGS IN ROTOR THE ROTOR HAS PERMANENT MAGNET& SALIENT POLE 5/14/2019

OPERATION MODES OF VR STEPPER MOTOR 5/14/2019

1-PHASE ON OPERATION 5/14/2019

SWITCHING SEQUENCES 5/14/2019

2-PHASE ON OPERATION 5/14/2019

SWITCHING SEQUENCES 5/14/2019

ALTERNATE 1-PHASE & 2-PHASE ON 5/14/2019

SWITCHING SEQUENCES 5/14/2019

4.MICRO STEPPING (MULTISTACK) The micro stepping process only available in the multi stack variable reluctance motor 5/14/2019

4.MICRO STEPPING 5/14/2019

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MODES OF OPERATION OF PERMANENT MAGNET STEPPER MOTOR 5/14/2019

SWITCHING SEQUENCES 5/14/2019

2-PHASE ON MODE 5/14/2019

SWITCHING SEQUENCES 5/14/2019

ALTERNATE 1-PHASE & 2-PHASE ON 5/14/2019

SWITCHING SEQUENCES 5/14/2019

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HYBRID MOTOR The hybrid motor is combination of the VR stepper motor & PM stepper motor 5/14/2019

OPERATION 5/14/2019

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CHARACTERISTICS OF DUAL VOLTAGE DRIVE 5/14/2019 CHARACTERISTICS OF DUAL VOLTAGE DRIVE

DUAL VOLTAGE DRIVE FOR 2-PHASE OPERATION MODE IN 4 PHASE MOTOR 5/14/2019

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CHOPPER DRIVE CHARTERISTICS 5/14/2019

BIPOLAR DRIVES FOR STEPPER MOTOR BASIC BIPOLAR DRIVES IT CONSISTS 2 DIOES 2 TRANSISTERS &2 POWER SUPPLY THERE IS NO WINDINGS UNI POLAR POWER SUPPLY USED BIPOLAR L/R DRIVES IT CONSISTS 4 DIOES ,4 TRANSISTERS & 2 POWER SUPPLY THERE ARE 2 WINDINGS BIPOLAR CHOPPER DRIVES IT CONSISTS 4 DIOES 4 TRANSISTERS & 2 POWER SUPPLY BIPOLAR POWER SUPPLY USED 5/14/2019

BASIC BIPOLAR DEVICES V-SOURCE1 ACTIVE NORMAL POSITION V-SOURCE1 ACTIVE 5/14/2019

BASIC BIPOLAR DEVICES FOR 2 PHASE ON MODE 5/14/2019

BIPOLAR L/R DRIVES WITH 2 VOLTAGE SOURCE 5/14/2019

BIPOLAR L/R DRIVES WITH SINGLE VOLTAGE SOURCE 5/14/2019

BIPOLAR CHOPPER DRIVES 5/14/2019

COMPARISION BETWEEN BIPOLAR & UNIPOLAR DRIVES 5/14/2019

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Faraday’s law of electromagnetic induction B-H CURVE 5/14/2019

FLUX LINKAGE 5/14/2019

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CASE 1:Ө=45° CASE 3:Ө=90° CASE 1:Ө=0° AIRGAP IS SMALL RELUTANCE IS MINIMUM L IS MAXIMUM (LMAX) CASE 1:Ө=0° RELUTANCE IS INCREASED L IS DECREASED CASE 1:Ө=45° AIRGAP IS LARGE RELUTANCE IS MAXIMUM L IS MINIMUM CASE 3:Ө=90° 5/14/2019

INDUCTANCE PROPERTY OF SRM 5/14/2019

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DRIVES FOR SRM 5/14/2019

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Conventional DC Motor 5/14/2019

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PERMANENT MAGNET DC MOTOR (SECOND STAGE EVOLUTION) 5/14/2019

PERMANENT MAGNET BRUSHLESS DC MOTOR (THIRD STAGE EVOLUTION) 5/14/2019

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COMMUTATOR 5/14/2019

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180 POLEARC 120 POLEARC 5/14/2019

BLPM SNW MOTOR 3PHASE 3PULSE BLPM MOTOR SIN WAVE FLUX WITH RESPECT TO STEP ANGLE 5/14/2019

OPERATION OF BLPM SNW MOTOR 5/14/2019

TORQUE EQUATION 5/14/2019

ONE PHASE WINDING –ONE PULSE BLPM DC MOTOR ONE PHASE WINDING –TWO PULSE BLPM DC MOTOR 5/14/2019 Torque wave forms

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POWER CONTROLLER OF BLPM DC MOTOR 5/14/2019

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