Accession Number : ADA186618

Title :   Pulse Width Modulator Controller Design for a Brushless DC Motor Position Servo.

Descriptive Note : Master's thesis,

Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CA

Personal Author(s) : Rossitto, Vincent S

PDF Url : ADA186618

Report Date : Jun 1987

Pagination or Media Count : 337

Abstract : Recent interest in positioning cruise missile flight control surfaces using electromechanical actuation has prompted a detailed study of brushless dc motor performance in such an application. While the superior response characteristics of these electronically commutated motors are particularly well suited to unidirectional velocity drives, destructive electrical transients associated with rotational reversals of the motor limit its positioning performance. This thesis involves computer aided design of a functionally robust brushless dc motor position controller using pulse width modulation. Lumped parameter model simulation and phase plane analysis were performed to attain a preliminary parametric design of the controller. Comprehensive electrical and mechanical analyses were conducted using detailed model simulation to arrive at the final design by parametric optimization. FORTRAN source code listings for all simulations discussed in this thesis are appended and were run on a personal computer. Keywords: Computer aided design, Brushless motor model, Transient response waveshaping, Closed loop four quadrant operation, Pulse width modulator design.

Descriptors :   *COMPUTER AIDED DESIGN, *DRIVES, *ELECTROMECHANICAL DEVICES, *MOTORS, *PARAMETRIC ANALYSIS, *SIMULATION, ACTUATION, CODING, DESTRUCTION, DIRECT CURRENT, ELECTRICAL PROPERTIES, ELECTRONIC COMMUTATORS, FORTRAN, LIMITATIONS, MECHANICAL PROPERTIES, MODELS, MODULATORS, OPTIMIZATION, POSITIONING REACTIONS, PULSE MODULATION, PULSES, RESPONSE, REVERSIBLE, ROTATION, SOURCES, TRANSIENTS, UNIDIRECTIONAL, VELOCITY, WAVEFORM GENERATORS, WIDTH

Subject Categories : Electric Power Production and Distribution
      Computer Programming and Software
      Machinery and Tools

Distribution Statement : APPROVED FOR PUBLIC RELEASE