Sensorless Control Techniques for the Flyback-Type Solar Tile Microinverter

Simple item page
dc.contributor.advisorPahlevani, Majid
dc.contributor.authorFalconar, Nicholas
dc.contributor.committeememberMurari, Kartikeya
dc.contributor.committeememberNowicki, Edwin P.
dc.date2019-06
dc.date.accessioned2019-05-03T13:57:21Z
dc.date.available2019-05-03T13:57:21Z
dc.date.issued2019-04-29
dc.description.abstractTypically, while operating a photovoltaic (PV) microinverter, the current must be measured to perform maximum power point tracking (MPPT). The current measurement is required as it is used to calculate the power generated by the PV module. This dissertation studies the operation of a flyback-type PV microinverter without the use of current measurement and explores associated current estimation methods. Four methods of estimating the current are tested and compared. Two are already present in the literature; they are based on integrating the flyback transformer's primary-side sawtooth current waveform over a half-grid cycle. The other two are novel methods using the voltage ripple over the capacitor present at the direct current (DC) input of the microinverter to calculate the input current. One novel method also includes an estimate for the magnetizing inductance of the flyback transformer in the control loop, providing adaptability to a varying inductance. Each current estimation technique is derived mathematically, simulated, and implemented experimentally. A solar microinverter is designed and built to carry out practical tests on an experimental setup. The current estimation methods are compared by studying their effects on MPPT performance.en_US
dc.identifier.citationFalconar, N. (2019). Sensorless Control Techniques for the Flyback-Type Solar Tile Microinverter (Master's thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca.en_US
dc.identifier.doihttp://dx.doi.org/10.11575/PRISM/36455
dc.identifier.urihttp://hdl.handle.net/1880/110272
dc.language.isoengen_US
dc.publisher.facultySchulich School of Engineeringen_US
dc.publisher.institutionUniversity of Calgaryen
dc.rightsUniversity of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.en_US
dc.subjectRenewableen_US
dc.subjectPhotovoltaicen_US
dc.subjectMicroinverteren_US
dc.subjectFlybacken_US
dc.subjectSensorlessen_US
dc.subjectControl systemen_US
dc.subject.classificationEnergyen_US
dc.subject.classificationEngineeringen_US
dc.subject.classificationEngineering--Electronics and Electricalen_US
dc.titleSensorless Control Techniques for the Flyback-Type Solar Tile Microinverteren_US
dc.typemaster thesisen_US
thesis.degree.disciplineEngineering – Electrical & Computeren_US
thesis.degree.grantorUniversity of Calgaryen_US
thesis.degree.nameMaster of Science (MSc)en_US
ucalgary.item.requestcopytrue
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
ucalgary_2019_falconar_nicholas.pdf
Size:
9.02 MB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.74 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Open Theses and Dissertations