Verification of a full-order observer design for sensorless induction motor drives

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.advisor Hinkkanen, Marko Pavel, Andreea 2014-04-17T09:20:44Z 2014-04-17T09:20:44Z 2014-03-31
dc.description.abstract The main topic of this thesis is the full-order flux observer as a part of the induction machine sensorless drives. First the induction machine inverse-Gamma model is presented with a brief overview of space vectors and different coordinate systems. Sensorless vector control principles and theory are presented next. Two very promising full-order observer designs were chosen, presented and tested through computer simulations. The simulations were implemented with the MATLAB/Simulink environment. The full-order observer designs are tried in different situations, like speed reversal, basic load tasks while running at a given speed, or a speed higher than the nominal to see how the design behaves. There is also a trial for stator resistance error, which can signify changes in the resistance due to temperature fluctuations or estimation errors from the mathematical model. From the test results it has been concluded that the original design is hard to tune, and it does not have tolerance to stator resistance changes. The improved design has brought more flexibility in terms of tuning, and there is a better tolerance for stator resistance changes. en
dc.format.extent 6+32
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.title Verification of a full-order observer design for sensorless induction motor drives en
dc.type G2 Pro gradu, diplomityö en Sähkötekniikan korkeakoulu fi
dc.subject.keyword flux estimation en
dc.subject.keyword full-order observer design en
dc.subject.keyword induction motor drives en
dc.subject.keyword sensorless vector control en
dc.identifier.urn URN:NBN:fi:aalto-201404181707
dc.programme.major Electrical Drives fi
dc.programme.mcode S3016 fi
dc.type.ontasot Diplomityö fi
dc.type.ontasot Master's thesis en
dc.contributor.supervisor Hinkkanen, Marko
dc.programme EST - Master’s Programme in Electrical Engineering fi
dc.location P1 fi

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