Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"Volt-var Control"”.
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Optimal Volt/VAR Control and Power Dispatch in Active Distribution Systems
… we address some of these challenges by proposing various problem statements along with new techniques to show how a distribution system with different MGs and DERs should work. These problem statements include economic dispatch, multi-objective economic-emission dispatch, economic-reliability …
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Performance of PV Generation Feedback Controllers: Power Factor versus Volt-VAR Control Strategies
The variable nature of photovoltaic (PV) generation can cause voltage fluctuations in power distribution systems. Feedback control can be used to minimize the voltage fluctuations. This thesis presents the results obtained from comparing the control performance of two types of PV generation …
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Stability design criteria and volt var control for distribution system with single phase solid state transformers
… technology, power electronic converters for high voltage, high power, and high frequency applications will soon be commercially available. Conventional single phase distribution transformers are replaced by solid state transformers (SST) in a distribution test system to investigate their …
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Machine Learning and Quantum Computing for Optimization Problems in Power Systems
… etc, that increase the number of decision variables involved. Moreover, the technologies entail faster dynamics and unpredictability, further demanding a solution speedup. Yet another concern is the growing communication overhead that accompanies this large-scale, high-speed, …
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Control Design for a Microgrid in Normal and Resiliency Modes of a Distribution System
… distributed energy resources (DERs) such as photovoltaic (PV) and battery energy storage system (BESS) penetrate within the distribution system. New challenges regarding how to utilize these devices to improve power quality arises. Before, PV systems were required to disconnect from the grid …
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Modeling and Integration of Demand Response and Demand Side Resources for Smart Grid Application in Distribution Systems
… develop its comprehensive model and to analyze various effects and implications of DR on distribution networks. The second major objective of the thesis is to integrate the developed demand response model into a microgrid market optimization. A microgrid network is a real world demonstration of …
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Data-Driven Voltage Control of DERs Integrated Distribution Grids Using Deep Reinforcement Learning
… grids presents a significant challenge for voltage control and power loss due to their intermittent nature and diverse operational characteristics. Although different control strategies have been developed to improve the voltage profile of the distribution networks, Volt-VAR control (VVC) is …
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Model-Based Grid Modernization Economic Evaluation Framework
… quasi-steady state power flows over time-varying loads and costs of service, Monte Carlo simulations, reconfiguration for restoration, and coordinated control - that are used to evaluate the cost-benefits of a series of smart grid investments. In the electric power system planning process, …
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Overcoming Voltage Issues Associated with Integration of Photovoltaic Resources in the Electric Grid
… can fluctuate in a matter of seconds and cause voltage issues to power systems. Considering the high growth rate of solar photovoltaic (PV) resources, it is essential to be prepared to encounter and manage their high penetration levels. Currently, simplified approaches are used to model the …