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P.W.M. BASED SPEED CONTROLLER FOR DC MOTOR
Submitted To:- Submitted By:-

H.O.D. of E.C.E. Himanshi Banyal(7071046)
Dept. Parul Kanwar(7071049)
Praveen soni Shivani Chandel(7071055)
Parvesh kumar(7071050)

DERPARTMENT OF ELECTRONIC AND COMMUNICATION
ENGINEERING
GREEN HILLS POLYTECHNICAL COLLEGE
KUMARHATTI SOLAN

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INTRODUCTION
Motor controller
A motor controller is a device or group of devices that serves to govern in some predetermined manner the performance of an electric motor. A motor controller might include a manual or automatic means for starting and stopping the motor, selecting forward or reverse rotation, selecting and regulating the speed, regulating or limiting the torque, and protecting against overloads and faults.
6.1 Types of motor controllers
Motor controllers can be manually, remotely or automatically operated. They may include only the means for starting and stopping the motor or they may include other functions
An electric motor controller can be classified by the type of motor it is to drive such as permanent, servo, series, separately excited, and alternating current.
A motor controller is connected to a power source such as a battery pack or power supply, and control circuitry in the form of analog or digital input signals.

FPGA Implementation of PWM ControlTechnique for Three Phase Induction Motor Drive
Control of the speed, torque, acceleration, and the direction of rotation of the motor is the primary function of any of the adjustable speed motor drives. Any one of the infinite number of speeds available within the operating range of the motor can be picked up. The speed of Most multipurpose production machines must change to adopt to the machine process, or to adopt to the objectives of product quality, production speed or safety. If the FPGA holds the control circuit, then it has numerous advantages over the conventional methods.
In this article, the three phase electric drive systems control implemented using VHDL is described. The heart of the inverter system is the three-phase Pulse Width Modulation (PWM)generation. the switching sequence of the power devices is controlled in accordance with the pre-stored instructions.all the functions can be implemented in a single chip by the use of the FPGA technology. a design file is compiled into a configuration fie and then it is optimised in terms of the logic gates and interconnections for the target FPGA device.
Get the report here:
http://scribddoc/44302137/FPGA-Implementation-of-PWM-Control