Control of the Doubly Salient Permanent Magnet Switched Reluctance Motor
Merrifield, David Bruce
MetadataShow full item record
The permanent magnet switched reluctance motor (PMSRM) is hybrid dc motor which has the potential to be more effect than the switched reluctance (SRM) and permanent magnet (PM) motors. The PMSRM has a both a salient rotor and stator with permanent magnets placed directly onto the face of common pole stators. The PMSRM is wound like the SRM and can be controlled by the same family of converters. The addition of permanent magnets creates nonlinearities in both the governing electrical and mechanical equations which differentiate the PMSRM from all other classes of electric motors. The primary goal of this thesis is to develop a cohesive and comprehensive control strategy for the PMSRM so as to demonstrate its operation and highlight its efficiency. The control of the PMSRM starts with understanding its region of operation and the underlying torque production of the motor. The selection of operating region is followed by a both linear and nonlinear electrical modeling of the motor and the design of current controllers for the PMSRM. The electromechanical model of the motor is dynamically simulated with the addition of a closed loop speed controller. The speed controller is extended to add an efficiency searching algorithm which finds the operating condition with the highest efficiency online.
- Masters Theses 
Showing items related by title, author, creator and subject.
Integrating Collision Avoidance, Lane Keeping, and Cruise Control With an Optimal Controller and Fuzzy Controller Grefe, William Kevin (Virginia Tech, 2005-04-29)This thesis presents collision avoidance integrated with lane keeping and adaptive cruise control for a car. Collision avoidance is the ability to avoid obstacles that are in the vehicleâ s path, without causing damage ...
Apparatus for drive control, power conversion, and start-up control in a PMBDCM or two-phase SRM drive system Virginia Tech Intellectual Properties, Inc.; Ramu, Krishnan (United States Patent and Trademark Office, 2008-05-13)A power converter for a switched reluctance motor (SRM) or a permanent magnet brushless direct current (do) motor (PMBDCM) may include a front-end boost partial circuit for connecting with a first phase winding of the motor ...
Method, apparatus, and system for drive control, power conversion, and start-up control in an SRM or PMBDCM drive system Virginia Tech Intellectual Properties, Inc.; Ramu, Krishnan (United States Patent and Trademark Office, 2007-09-18)A power converter for a switched reluctance motor or a permanent magnet brushless direct current (dc) motor may include first and second partial circuits for forming multiple conduction circuits in cooperation with first ...