Analysis of induction motors based on the numerical solution of the magnetic field and circuit equations

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en Arkkio, Antero 2012-02-10T09:13:19Z 2012-02-10T09:13:19Z 1987-12-18
dc.identifier.isbn 951-22-6076-X
dc.identifier.issn 0001-6845
dc.description.abstract A method for the analysis of induction motors is presented. The analysis is based on the combined solution of the magnetic field equations and the circuit equations of the windings. The equations are discretized by the finite element method. The magnetic field is assumed to be two-dimensional. The three-dimensional features i.e. the skew of the rotor slots and the end-region fields are taken into account within the two-dimensional formulation. The general time-dependence of the field and the motion of the rotor are modelled correctly in a step-by-step solution. The amount of computation is reduced significantly if the time-dependence is assumed to be sinusoidal and phasor quantities are used in the solution. The method is applied to the calculation of a cage rotor motor and of a solid rotor motor. The sinusoidal approximation gives good results in the computation of steady-state locked-rotor quantities, but it does not model the motion of the rotor properly. The step-by-step method is used for computing machine quantities in steady and transient states. For instance the operation of the solid rotor motor supplied by a static frequency converter is simulated. The results obtained by the method agree well with the measured ones. en
dc.format.extent 97
dc.format.mimetype application/pdf
dc.language.iso en en
dc.publisher Helsinki University of Technology en
dc.publisher Teknillinen korkeakoulu fi
dc.relation.ispartofseries Acta polytechnica Scandinavica. El, Electrical engineering series en
dc.relation.ispartofseries 59 en
dc.subject.other Electrical engineering en
dc.title Analysis of induction motors based on the numerical solution of the magnetic field and circuit equations en
dc.type G4 Monografiaväitöskirja fi
dc.description.version reviewed en
dc.contributor.department Department of Electrical and Communications Engineering en
dc.contributor.department Sähkö- ja tietoliikennetekniikan osasto fi
dc.subject.keyword induction motors en
dc.subject.keyword finite element analysis en
dc.identifier.urn urn:nbn:fi:tkk-001267
dc.type.dcmitype text en
dc.type.ontasot Väitöskirja (monografia) fi
dc.type.ontasot Doctoral dissertation (monograph) en
dc.contributor.lab Laboratory of Electromechanics en
dc.contributor.lab Sähkömekaniikan laboratorio fi

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