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Simulation and hardware validation of methods for synchronization of central-converter multi-motor electric actuation systems

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dc.contributor.authorMiller, Zane P., author
dc.contributor.authorCale, James, advisor
dc.contributor.authorChong, Edwin, committee member
dc.contributor.authorFairbank, William, committee member
dc.date.accessioned2023-08-28T10:27:56Z
dc.date.available2023-08-28T10:27:56Z
dc.date.issued2023
dc.description.abstractReplacement of previously hydraulic and pneumatic drives with power-electronic drive systems to reduce weight and maintenance requirements is a current target of research in the aerospace industry. This includes electrification of thrust reverser actuation systems (TRAS), which redirect thrust produced by the aircraft's engines to aid with deceleration upon landing, reducing wear on the brakes. However, one challenge of developing an electromagnetic TRAS (EM-TRAS) is the requirement of speed and position synchronization of all motors in the system, despite unequal torque loading from differing wind forces. Use of a single ("central") power electronic converter to power a set of induction machines in parallel could potentially lower cost and weight requirements compared to the use of separate converters, but such a central-converter, multi-motor (CCMM) architecture requires some form of compensation for load torque differences. Previous research presented a synchronization methodology using closed-loop feedback control of variable stator resistances in parallel with each induction machine. This thesis builds on this research by presenting an alternative methodology that instead applies closed-loop feedback control to smaller-scale auxiliary converters for each motor line, coupled to the induction machines using transformers to apply adjustments to the stator voltage. This new methodology achieves similar synchronization performance with better energy efficiency, lowering power requirements for its use compared to the external resistance methodology. The author's contributions to construction of a testbed for aerospace actuation system research are also presented in this thesis, with applications including hardware validation of the external resistance CCMM EM-TRAS implementation.
dc.format.mediumborn digital
dc.format.mediummasters theses
dc.identifierMiller_colostate_0053N_17934.pdf
dc.identifier.urihttps://hdl.handle.net/10217/236841
dc.languageEnglish
dc.language.isoeng
dc.publisherColorado State University. Libraries
dc.relation.ispartof2020-
dc.rightsCopyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright.
dc.subjectelectrification
dc.subjectmore electric aircraft
dc.subjectthrust reverser actuation system
dc.subjectinduction machines
dc.subjectcentral-converter multi-motor
dc.subjectsynchronization
dc.titleSimulation and hardware validation of methods for synchronization of central-converter multi-motor electric actuation systems
dc.typeText
dcterms.rights.dplaThis Item is protected by copyright and/or related rights (https://rightsstatements.org/vocab/InC/1.0/). You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).
thesis.degree.disciplineElectrical and Computer Engineering
thesis.degree.grantorColorado State University
thesis.degree.levelMasters
thesis.degree.nameMaster of Science (M.S.)

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