Dr. S. Ravivarman ravivarman@vardhaman.org +91 99942 77431
This course focuses on basic principles of speed control of DC & AC machines. The study of improvement of speed response by closed loop control is emphasized.
After the completion of the course, the student will be able to:
A5216.1 Analyze 1 phase and 3phase controlled converters for speed control operation of DC Drives.
A5216.2 Apply the knowledge of DC-Dc Converter and dual converter for speed and torque control of DC Drives.
A5216.3 Analyze variable frequency control of Induction motor on stator side using different converters.
A5216.4 Test the performance of Induction Motor by conducting different speed control methods.
A5216.5 Assess different power electronic converter to control speed of synchronous motor drives.
CONTROL OF DC MOTORS BY 1-Ph CONTROLLED CONVERTERS: Introduction to Thyristor controlled Drives, Single Phase Semi and Full controlled converters connected to D.C separately excited and D.C series motors, continuous operation, output voltage and current waveforms. Speed and Torque expressions, Speed – Torque Characteristics. CONTROL OF DC MOTORS BY 3-Ph CONTROLLED CONVERTERS: Three phase semi and fully controlled converters connected to D.C separately excited and D.C series motors, output voltage and current waveforms. Speed and Torque expressions, Speed –Torque characteristics, Numerical problems.
FOUR QUADRANT OPERATIONS OF DC DRIVES: Electric Braking – Plugging, Dynamic and Regenerative Braking operations, Numerical problems.
CONTROL OF DC MOTORS BY CHOPPERS: Single quadrant, Two –quadrant and four-quadrant chopper fed separately excited dc motor. Continuous operation, Output voltage and current waveforms, Speed torque expressions, speed torque characteristics. Closed loop operation of DC motor (Block Diagram Only) Numerical problems.
CONTROL OF INDUCTION MOTORS: Variable voltage characteristics, Variable frequency characteristics, V/F Control of Induction motor Voltage source Inverter and Current source Inverter control of induction motor. Comparison of VSI and CSI operations, Speed torque characteristics, numerical on induction motor drives, closed loop operation of induction motor drives (Block Diagram Only) Numerical problems.
PWM CONTROL OF INDUCTION MOTOR DRIVES: Introduction to PWM, Sinusoidal PWM (SPWM) control of Induction Motor, Space vector modulation (SVPWM) control of Induction Motor. CONTROL OF SYNCHRONOUS MOTOR DRIVES: Control characteristics of Synchronous motor drive, VSI fed and CSI fed Synchronous Motor, Closed Loop operation of synchronous motor drives (Block Diagram Only).
Inform the instructor any time prior to the due date for an assignment that you wish to use a late day; you may then turn in the assignment up to 24 hours late. Multiple late days may be used on the same assignment. There are no partial late days; turning in an assignment 2 hours late or 20 hours late will both use 1 late day. Note that late days are intended to cover both normal circumstances (you simply want more time to work on the assignment) and exceptional circumstances. The late assignments will receive at most half credit.
Lab attendance is required.
It is my ultimate goal for this course, and my teaching, to develop your academic skills, advance your learning of electrical and electronics engineering concepts. To do so will require commitments from myself and from you toward meeting this goal.
I will be prepared and on time for class each day, ready to use class time to help you understand the course material. I will respectfully listen to, understand, and answer questions asked in class.
You are expected to attend class and actively participate in discussions every day, answering questions, asking questions, presenting material, etc. Your participation will be respectful of your classmates, both of their opinions and of their current point in their educational journey, as we each approach the material with different backgrounds and contexts.
I will keep office hours and be available for outside appointments, and respond to emails. I will provide feedback on group presentations, exams, projects, and homeworks.
You are encouraged to provide constructive comments for improving this course for furthering your learning throughout the semester. There will be an opportunity for anonymous course feedback at the end of the semester, in which I hope you all participate. Through your feedback I can improve this course and others for future students.
I will abide by the above syllabus and grade your work fairly.