{"id":{"repo_id":"utc","oai_identifier":"oai:scholar.utc.edu:theses-2130"},"canonical_url":"https://search.dev.ndltd.org/etd/utc/oai:scholar.utc.edu:theses-2130","repository":{"repo_id":"utc","name":"University of Tennessee - Chattanooga","base_url":"https://scholar.utc.edu/do/oai/"},"display":{"title":"A Comparison of three phase induction motor performance subjected to frequency, voltage, and load changes by PWM and square wave inverters","abstract":"This paper presents a comparison of three-phase induction motor performance subjected to frequency, voltage and load changes by Square wave inverter and Pulse Width Modulated (PWM) inverter. A computer program which is backed by a laboratory study is used to characterize the motor performance during the comparison. A 1 hp induction motor is tested by a Square wave and a PWM inverter and the motor performance data including various harmonic losses at 30 Hz, 40 Hz and at 60 Hz are measured. An advanced electrical model that accounts for the skin effect in the rotor bar to predict motor impedance is used to predict motor performance and calculate motor losses. The laboratory and calculated data are compared. Various performance characteristics of the induction motor are plotted. The result of this study showed that the induction motor efficiency decreased significantly as the operating frequency decreased and the PWM inverter driven motor efficiency performed better in comparison with Square wave inverter at frequencies 60Hz, 40Hz and 30Hz.","abstract_html":"This paper presents a comparison of three-phase induction motor performance subjected to frequency, voltage and load changes by Square wave inverter and Pulse Width Modulated (PWM) inverter. A computer program which is backed by a laboratory study is used to characterize the motor performance during the comparison. A 1 hp induction motor is tested by a Square wave and a PWM inverter and the motor performance data including various harmonic losses at 30 Hz, 40 Hz and at 60 Hz are measured. An advanced electrical model that accounts for the skin effect in the rotor bar to predict motor impedance is used to predict motor performance and calculate motor losses. The laboratory and calculated data are compared. Various performance characteristics of the induction motor are plotted. The result of this study showed that the induction motor efficiency decreased significantly as the operating frequency decreased and the PWM inverter driven motor efficiency performed better in comparison with Square wave inverter at frequencies 60Hz, 40Hz and 30Hz.","abstract_has_math":false,"creators":["Demirbas, Aliosman"],"institution":"University of Tennessee at Chattanooga","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":["Eltom, Ahmed Hassan","Parten, Clifford; Sartipi, Mina","College of Engineering and Computer Science"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":null,"date_issued":"","date_published":null,"updated_at":"2026-07-24T05:47:21Z","subjects":["Electric motors, Induction--Efficiency"],"languages":["English","eng"],"rights":[],"rights_urls":["http://rightsstatements.org/vocab/InC/1.0/"],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["LB2369.2 .D454 2008"],"render_values":[{"text":"LB2369.2 .D454 2008","href":null,"code":true}]}]},"links":{"outbound_url":"https://scholar.utc.edu/theses/951","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Eltom, Ahmed Hassan","Parten, Clifford; Sartipi, Mina","College of Engineering and Computer Science"]},{"key":"dc:creator","label":"Author","values":["Demirbas, Aliosman"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2008-12-01T08:00:00Z"]},{"key":"dc:publisher","label":"Institution","values":["University of Tennessee at Chattanooga","Chattanooga (Tenn.)"]},{"key":"dc:relation","label":"Dc Relation","values":["Masters Theses and Doctoral Dissertations"]},{"key":"dc:type","label":"Dc Type","values":["Masters theses","Text"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Electric motors, Induction--Efficiency"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["English","eng"]},{"key":"dc:rights","label":"Dc Rights","values":["http://rightsstatements.org/vocab/InC/1.0/"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["LB2369.2 .D454 2008","https://scholar.utc.edu/theses/951"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Dept. of Electrical Engineering","M. A.; A thesis submitted to the faculty of the University of Tennessee at Chattanooga in partial fulfillment of the requirements of the degree of Master of Arts."]},{"key":"dc:description.abstract","label":"Abstract","values":["This paper presents a comparison of three-phase induction motor performance subjected to frequency, voltage and load changes by Square wave inverter and Pulse Width Modulated (PWM) inverter. A computer program which is backed by a laboratory study is used to characterize the motor performance during the comparison. A 1 hp induction motor is tested by a Square wave and a PWM inverter and the motor performance data including various harmonic losses at 30 Hz, 40 Hz and at 60 Hz are measured. An advanced electrical model that accounts for the skin effect in the rotor bar to predict motor impedance is used to predict motor performance and calculate motor losses. The laboratory and calculated data are compared. Various performance characteristics of the induction motor are plotted. The result of this study showed that the induction motor efficiency decreased significantly as the operating frequency decreased and the PWM inverter driven motor efficiency performed better in comparison with Square wave inverter at frequencies 60Hz, 40Hz and 30Hz."]},{"key":"dc:title","label":"Title","values":["A Comparison of three phase induction motor performance subjected to frequency, voltage, and load changes by PWM and square wave inverters"]}]}],"canonical_facts":{"dc:contributor":["Eltom, Ahmed Hassan","Parten, Clifford; Sartipi, Mina","College of Engineering and Computer Science"],"dc:creator":["Demirbas, Aliosman"],"dc:date":["2008-12-01T08:00:00Z"],"dc:description":["Dept. of Electrical Engineering","M. A.; A thesis submitted to the faculty of the University of Tennessee at Chattanooga in partial fulfillment of the requirements of the degree of Master of Arts."],"dc:description.abstract":["This paper presents a comparison of three-phase induction motor performance subjected to frequency, voltage and load changes by Square wave inverter and Pulse Width Modulated (PWM) inverter. A computer program which is backed by a laboratory study is used to characterize the motor performance during the comparison. A 1 hp induction motor is tested by a Square wave and a PWM inverter and the motor performance data including various harmonic losses at 30 Hz, 40 Hz and at 60 Hz are measured. An advanced electrical model that accounts for the skin effect in the rotor bar to predict motor impedance is used to predict motor performance and calculate motor losses. The laboratory and calculated data are compared. Various performance characteristics of the induction motor are plotted. The result of this study showed that the induction motor efficiency decreased significantly as the operating frequency decreased and the PWM inverter driven motor efficiency performed better in comparison with Square wave inverter at frequencies 60Hz, 40Hz and 30Hz."],"dc:identifier":["LB2369.2 .D454 2008","https://scholar.utc.edu/theses/951"],"dc:language":["English","eng"],"dc:publisher":["University of Tennessee at Chattanooga","Chattanooga (Tenn.)"],"dc:relation":["Masters Theses and Doctoral Dissertations"],"dc:rights":["http://rightsstatements.org/vocab/InC/1.0/"],"dc:subject":["Electric motors, Induction--Efficiency"],"dc:title":["A Comparison of three phase induction motor performance subjected to frequency, voltage, and load changes by PWM and square wave inverters"],"dc:type":["Masters theses","Text"]},"updated_at":"2026-07-24T05:47:21Z"}