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 20 of 34 for “"Distribution Grids"”.
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Hosting Capacity Optimization in Modern Distribution Grids
… the increased integration of DGs into existing distribution networks is impacting their behavior in terms of voltage profile, reliability, and power quality. To determine the maximum amount of DG that distribution grids can accommodate the concept of hosting capacity is introduced.</p> <p>The …
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Graph Theoretical Modelling of Electrical Distribution Grids
… of graph theory towards the electrical distribution networks that transmit electricity from the generators that produce it and the consumers that use it. Specifically, we establish the substation and bus network as graph theoretical models for this major piece of electrical …
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Voltage Unbalance-Cognizant Optimization of Distribution Grids
… of distributed generators (DGs) into the distribution grid has exacerbated voltage unbalance issues leading to greater risks of reducing equipment lifetime, equipment damages, and increased ohmic losses. Most approaches to regulating voltage in distribution systems only focus on voltage …
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Quantum-Powered Battery Scheduling in Modern Distribution Grids
… is an increasing concern in the power distribution system to address the exponential growth of distribution-connected devices. Scheduling numerous battery energy storage systems in an optimal way is one of the emerging challenges that will be more noticeable as the number of batteries, …
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Grid Enhancing Technologies: Optimization and Benefit for Distribution Grids
… have been put onto the transmission and distribution grids to play an even larger role than they have in the past; consider AI, EV, residential solar, electrification of heat, decarbonization of buildings, increasing energy rates, old infrastructure. Improving the grid is a necessity to …
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Improving the Reliability of Smart Distribution Grids Using Software-based Networking
… enabled by better use of grid knowledge and the distribution of grid intelligence. This creates a challenge for many utilities that need to improve their existing grid ICT infrastructure to meet more stringent communication requirements. These requirements will likely include very high …
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A planning scheme for penetrating embedded generation in power distribution grids
… or Distributed Generation (DG), in power distribution grids presents great benefits and substantial positive social impacts to utilities, system operators and electricity consumers. Existing research and practices on DG penetration planning have a few deficiencies: (1) limited to specific …
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A proximal atomic coordination algorithm for distributed optimization in distribution grids
The control and regulation of power grids has historically relied upon large-scale scheduleable generation and relatively stable load demand profiles. With the advent of extensive local renewable energy generation technologies as well as the incorporation of load responsive demand response (DR) …
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Optimization and control of Distributed Energy Resources in electric power distribution grids
… to ensure safe operation. For example, in power grids, maintaining this balance between electricity supply and demand is vital for ensuring frequency regulation. Microeconomic theory suggests that appropriate pricing of resource flows can ensure this balance. We adopt the concept of competitive …
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Optimization and control of Distributed Energy Resources in electric power distribution grids
… to ensure safe operation. For example, in power grids, maintaining this balance between electricity supply and demand is vital for ensuring frequency regulation. Microeconomic theory suggests that appropriate pricing of resource flows can ensure this balance. We adopt the concept of competitive …
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Data-Driven Voltage Control of DERs Integrated Distribution Grids Using Deep Reinforcement Learning
… Energy Resources (DERs) in modern power distribution 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 …
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Innovative Systemic Control of Grid-Edge Inverters in Distribution Grids for Enhanced Grid Services
… However, their stable integration into weak distribution networks presents significant challenges. To address these challenges, this thesis develops a comprehensive, multi-layered control framework that enhances the performance and resilience of grid-edge inverters. Specifically, it proposes …
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D-Q Frame Impedance Based Small-signal Stability Analysis of PV Inverters in Distribution Grids
… small-signal stability impact of PV inverters on distribution systems especially with reactive power control. In addition, the existing studies either use the conventional way of state space equations and eigenvalues or use time-domain simulation methodology, which are based on the assumptions …
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Planning studies for distribution grids with high penetration of distributed energy resources: the challenge of fairness in future electricity networks
… additional supply and demand stresses that distribution grids were not originally designed for. The flows of energy and revenue are changing in magnitude and direction, making these grids more dynamic over time. In this changing landscape, the traditional approach for planning in …
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Reconfiguration of distribution systems to reduce power loss using ant Colony Optimization and Simulated Annealing
… on python that allows characterization of distribution grids and running power flows. The optimization is executed with two techniques: Simulated annealing (SA) and ant colony optimization (ACO). SA is a well know and widely used optimization technique for reconfiguration problems. It is an …
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Data-Centric Situational Awareness and Management in Intelligent Power Systems
… the security problems in the transmission/distribution grids and social benefits augmentation problem at the distribution-customer lever, respectively.</p> <p>To address the security problem in the transmission/distribution grids utilizing big data, the first approach provides a fault …
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The design and performance of building-scale distributed energy generation in Houston, TX
… coupled with the fragility of electricity distribution grids, has sparked interest in building-scale distributed solar energy production. To further research into the barriers and challenges of residential grid-intertied solar photovoltaic electrical production, the U.S. Department of …
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Optimal coordination of distributed energy resources in smart grids enabled by distributed optimization and transactive energy
Modern active distribution grids are characterized by the increasing penetration of distributed energy resources (DERs). The proper coordination and scheduling of a large numbers of these DERs can only be achieved at the nexus of new technological approaches and policies, primarily distributed …
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