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An Speed Control of DC Motor Presentation
- 1. Course Code:EEE223 Course Title:Energy Conversion II Course Instructor: Mr. Naimur Rahman Lecturer, Dept. Of EEE,DIU Presented By: Saifur Rahman Turjoy Id: 221-33-1785 (C) Department of EEE,DIU Speed Control of DC Motor
- 2. The speed ofa DC motor is determined by various factors, including the applied voltage, the motor's construction, the load it's driving, and the design of the motor itself. In an ideal scenario, the speed of a DC motor is directly proportional to the voltage applied across its terminals. SPEED OF A DC MOTOR
- 3. •The flux control methodinvolves adjusting the field flux of the DC motor. •The field flux is created by the current flowing through the field windings. •By increasing or decreasing the field current, the field flux can be increased or decreased, respective SPEED CONTROL METHODS OF DC MOTOR Flux control method Rheostatic control method Voltage control method
- 4. FLIX CONTROL METHOD •Theflux control method involves adjusting the field flux of the DC motor. •The field flux is created by the current flowing through the field windings. •By increasing or decreasing the field current, the field flux can be increased or decreased, respectively. •This in turn changes the speed of the motor.
- 5. RHEOSTATIC CONTROL METHOD •The rheostatic control method involves adding a variable resistor in series with the armature or field windings of the DC motor. • By adjusting the resistance, the armature voltage or field current can be controlled, which in turn affects the speed of the motor.
- 6. Voltage Control Method •Thevoltage control method involves adjusting the voltage applied to the armature of the DC motor. •This can be done using a variable resistor, a transistor, or a motor controller. •By increasing or decreasing the armature voltage, the speed of the motor can be increased or decreased, respectively.
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