Measurement-based techniques for optimization and control of power distribution systems using distributed energy resources
department or school: Applied Science, Faculty of
department or school: Engineering, School of (Okanagan)
data provider: DSpace
degree campus: UBCO
creator: Nowak, Severin
issued: 2021-03-05T00:39:27Z
issued: 2021
related degree: Doctor of Philosophy - PhD
degree grantor: University of British Columbia
description: Widespread integration of distributed energy resources (DERs), such as solar photovoltaic, wind, and storage systems helps to alleviate environmental concerns of conventional fossil fuel-based generation. Moreover, DERs can provide valuable benefits to the reliable and efficient operation of the integrated power grid when dispatched accurately and timely. Furthermore, emerging advanced sensors provide vast amounts of data, which enables new opportunities in the operation of power grids. These trends have motivated recent research into developing techniques to dispatch DERs for optimization and control of power distribution systems. Existing research involves repeated solutions of optimization problems constrained by the nonlinear network power balance, DER capacity limits, and other operational limits. Such methods may be computationally burdensome in practical implementations, especially with rapidly varying operating points. Moreover, many require an accurate and up-to-date network model that may not be available in real time, resulting in DER setpoints that lead to unexpected or undesired system behaviour. In this thesis, the overarching goal is to develop new techniques to optimize and control modern power distribution systems with high penetrations of DERs by leveraging real-time measurements provided by advanced sensors such as distribution-level phasor measurement units. Specifically, the research focuses on (i) centrally dispatching optimal DER active- and reactive-power outputs by recursively estimating sensitivity models relating bus voltages and power injections, (ii) leveraging distributed estimation and optimization methods to alleviate the scalability concerns of the centralized measurement-based DER dispatch method, (iii) capitalizing on system-wide optimization and local measurements to regulate system voltages in cases with highly intermittent renewable generation, and (iv) minimizing network power losses and cost of DER reactive-power outputs based…
aggregated CHO: https://circle.library.ubc.ca/rest/handle/2429/77456
note: Measurement-based Techniques for Optimization and Controlof Power Distribution Systems Using Distributed EnergyResourcesbySeverin NowakB.Sc., University of Applied Sciences and Arts Western Switzerland – Fribourg, 2008a thesis submitted in partial fulfillmentof the requirements for the degree ofDoctor of Philosophyinthe college of graduate studies(Electrical Engineering)The University of British Columbia(Okanagan)February 2021© Severin Nowak, 2021The following individuals certify that they have read, and recommend to The College of Grad-uate Studies for acceptance, the dissertation entitled:Measurement-based Techniques for Optimization and Control of Power Dis-tribution Systems Using Distributed Energy Resourcessubmitted by Severin Nowak in partial fulfillment of the requirements for the degree of Doc-tor of Philosophy in Electrical Engineering.Examining Committee:Liwei Wang, School of Engineering, UBC OkanaganSupervisorYu Christine Chen, Electrical and Computer Engineering, UBC VancouverCo-SupervisorWilson Eberle, School of Engineering, UBC OkanaganSupervisory Committee MemberJonathan Holzman, School of Engineering, UBC OkanaganSupervisory Committee MemberZheng Liu, School of Engineering, UBC OkanaganUniversity ExaminerBala Venkatesh, Electrical and Computer Engineering, Ryerson UniversityUniversity ExamineriiAbstractWidespread integration of distributed energy resources (DERs), such as solar photovoltaic,wind, and storage systems helps to alleviate environmental concerns of conventional fossil fuel-based generation. Moreover, DERs can provide valuable benefits to the reliable and efficientoperation of the integrated power grid when dispatched accurately and timely. Furthermore,emerging advanced sensors provide vast amounts of data, which enables new opportunities inthe operation of power grids. These trends have motivated recent research into developing tech-niques to dispatch DERs for optimization and control of power distribution systems. Existingresearch involv…
has type: Thesis/Dissertation
date issued: 2021-05
is shown at: 10.14288/1.0396045
language: eng
degree discipline: Electrical Engineering
provider: Vancouver : University of British Columbia Library
publisher: University of British Columbia
rights: Attribution-NonCommercial-NoDerivatives 4.0 International
rights URI: http://creativecommons.org/licenses/by-nc-nd/4.0/
scholar level: Graduate
type: Text
identifier URI: http://hdl.handle.net/2429/77456