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Document Type
Thesis - University Access Only
Award Date
2015
Degree Name
Master of Science (MS)
Department / School
Electrical Engineering and Computer Science
First Advisor
Wei Sun
Keywords
Volt/var optimization, chance constrained programming, simulated annealing, smart PV inverter, and distribution power flow.
Abstract
Existing electric distribution systems are designed to deliver power from distribution substations to consumer load centers. Since the last decade, distribution systems are revitalizing with the increasing integration of renewable sources. Solar photovoltaic (PV) is the fastest growing source of renewable electricity in the United States. The anticipated PV proliferation brings integration challenges on system volt/var control (VVC) at the utility scale. One of the greatest challenges is to maintain desirable feeder voltages in the utility distribution network. The intermittent PV sources cause more frequent operation of VVC devices to alleviate voltage regulation issues. This thesis work proposed a real-time volt/var optimization (VVO) strategy for coordinated control of voltage regulators, switched capacitors, and PV inverter reactive power support for minimizing active power loss and also substation demand. Chance constrained programming (CCP) was used to model solar uncertainty. The VVO problem was formulated as an optimization problem and solved using simulated annealing technique. The proposed VVO strategy was tested in the modified IEEE 37-bus system. Simulation results demonstrated that the coordination of VVC devices and reactive power support from PV inverters can optimally regulate the system voltage, enable high PV penetration, and minimize active power loss and substation demand.
Library of Congress Subject Headings
Electric power distribution
Distributed generation of electric power
Simulated annealing (Mathematics)
Description
Includes bibliographical references (pages 77-83)
Format
application/pdf
Number of Pages
104
Publisher
South Dakota State University
Recommended Citation
Chaudhary, Damber, "Chance-Constrained Real-Time Volt/Var Optimization Using Simulated Annealing" (2015). Electronic Theses and Dissertations. 1854.
https://openprairie.sdstate.edu/etd/1854
Rights Statement
