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dc.contributor.author | Bidram, Ali | en_US |
dc.date.accessioned | 2014-09-17T17:29:46Z | |
dc.date.available | 2014-09-17T17:29:46Z | |
dc.date.issued | 2014-09-17 | |
dc.date.submitted | January 2014 | en_US |
dc.identifier.other | DISS-12773 | en_US |
dc.identifier.uri | http://hdl.handle.net/10106/24738 | |
dc.description.abstract | In this dissertation, the comprehensive secondary control of electric power microgrids is of concern. Microgrid technical challenges are mainly realized through the hierarchical control structure, including primary, secondary, and tertiary control levels. Primary control level is locally implemented at each distributed generator (DG), while the secondary and tertiary control levels are conventionally implemented through a centralized control structure. The centralized structure requires a central controller which increases the reliability concerns by posing the single point of failure. In this dissertation, the distributed control structure using the distributed cooperative control of multi-agent systems is exploited to increase the secondary control reliability. The secondary control objectives are microgrid voltage and frequency, and distributed generators (DGs) active and reactive powers. Fully distributed control protocols are implemented through distributed communication networks. In the distributed control structure, each DG only requires its own information and the information of its neighbors on the communication network. The distributed structure obviates the requirements for a central controller and complex communication network which, in turn, improves the system reliability. Since the DG dynamics are nonlinear and non-identical, input-output feedback linearization is used to transform the nonlinear dynamics of DGs to linear dynamics. Proposed control frameworks cover the control of microgrids containing inverter-based DGs. Typical microgrid test systems are used to verify the effectiveness of the proposed control protocols. | en_US |
dc.description.sponsorship | Davoudi, Ali | en_US |
dc.language.iso | en | en_US |
dc.publisher | Electrical Engineering | en_US |
dc.title | Distributed Cooperative Control Of Ac Microgrids | en_US |
dc.type | Ph.D. | en_US |
dc.contributor.committeeChair | Davoudi, Ali | en_US |
dc.degree.department | Electrical Engineering | en_US |
dc.degree.discipline | Electrical Engineering | en_US |
dc.degree.grantor | University of Texas at Arlington | en_US |
dc.degree.level | doctoral | en_US |
dc.degree.name | Ph.D. | en_US |
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