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 27 for “"inverter-based resources"”.
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Protection and Cybersecurity of Inverter-Based Resources
… and locating faults may not be sufficient for inverter-based resources (IBR) as the fault response of an IBR differs from the response of a synchronous generator. As the composition of the power grid continues to evolve to integrate more IBRs that employ communication-based control algorithms; …
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Application of Neural Networks to Inverter-Based Resources
… It extends application of neural networks to inverter-based resources by studying the implementation and performance of a neural network controller emulator for voltage-sourced converters. It delves into how neural networks could enhance cybersecurity of a component through multiple hardware …
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Toward Systematic Integration of Inverter-Based Resources in Electricity Markets
… a multi-layer control architecture for inverter-based resources (IBRs), separating fast local feedback control from slower self-dispatch and system-level market coordination. Existing integration methods for IBRs limit their control flexibility and completely restrict their market …
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P-Q capability analysis of inverter based resources with typical grid connected filters
… generator. With the increased development of inverter-based resources (IBRs) and interconnection of IBRs to the grid, IBR P-Q Capability Charts are also developed and proposed by the power industry to assure IBR operation efficiency and reliability. This thesis presents an evaluation about IBR …
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Synchronous Condensers and Grid-Forming Control for the Integration of Inverter-Based Resources in Weak Grids
Power systems with a higher share of inverter-based resources (IBR) exhibit reduced system strength and inertia, which are otherwise provided by synchronous generators (SG). This is because IBRs do not have the rotational inertia of SGs, and they do not contribute to short-circuit fault currents as …
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Advanced Assessment of Inverter-based Resources-Storage Technologies on Modern Electric Grids in terms of Power Profiling, Ancillary Services, and Transient Stability
The integration of Inverter-Based Resources (IBRs) with energy storage presents significant challenges to modern power systems, including reduced dispatchability, limited reserve capacity, impaired ancillary service performance, and compromised transient stability. These complexities also hinder …
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A Novel Inverter Based Resource Control Strategy to Facilitate Utility-Scale Renewable Integration and Retain Existing Transmission Protection Infrastructure
… connected to the grid via power electronic inverters have a significantly different fault response than conventional synchronous generators. The existing protection infrastructure for the North American transmission network was not designed with the behavior of these Inverter Based Resources …
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Impact of high penetration of PV generation on power system transient stability and fault current; modeling for real-time studies
… thermal generation with renewable energy resources. This shift has raised major challenges of replacing synchronous machines and their well-known dynamics with power-electronics interfaced generation whose behavior and response when integrated to the bulk power system is yet to be fully …
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Cybersecurity and Protection Strategies for Inverter-Based Resource Integration
… to ensure the reliability of power systems with inverter-based resources (IBR). Communication-based control techniques enhance the performance of IBR-dominated power systems, but they increase the risk of cyberattacks. Moreover, the unconventional fault behavior of IBRs can cause traditional …
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Reinforcement Learning for the Cybersecurity of Grid-Forming and Grid-Following Inverters
… generation has increased the number of installed inverter-based resources (IBR) in the grid, introducing new challenges in IBR control and cybersecurity. IBRs receive their set point through the communication link, which may expose them to cyber threats. Previous work has developed various …
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Cyber-Resilient Control of Synchronous Condensers
The growing integration of inverter-based resources (IBR) within electrical power systems leads to new challenges to grid stability in weak networks and creates heightened cybersecurity vulnerabilities due to the extensive reliance on information and communication technologies. This dissertation …
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Incremental Quantities Based Permissive Overreaching Transfer Trip Scheme for Protecting Inverter-Based Renewable Resources
… landscape evolves, with the increase of inverter-based resources (IBRs) such as solar photovoltaics and wind turbines, providing sustainable and clean energy sources. The shift towards IBRs mitigates climate change, creating considerable challenges to traditional power system protection …
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Protection and Cybersecurity in Inverter-Based Microgrids
… is an attractive solution for integrating inverter-based resources (IBR) in the power system. Distributed control is a potential strategy for controlling such microgrids. However, a major challenge toward the proliferation of distributed control is cybersecurity. A false data injection …
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A universal centralized protection scheme for feeders of AC microgrids using IEC-61869-9 digital instrument transformers
… powered by renewable energy sources and inverters in modern power systems. Despite offering significant environmental and economic advantages, their decentralized and dynamic nature poses unique protection challenges. Traditional protection methods struggle to adapt to the diverse …
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Discovering Power System Dynamics through Time-Frequency Representation of Ambient Data
… dynamic behavior, realistic models for these Inverter-Based Resources (IBRs) are not widely available. This complicates researching the behavior of this quickly changing system, and without proper models, simulations may not be totally reliable. To address this, it is recommended that …
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Frequency Scan–Based Mitigation Approach of Subsynchronous Control Interaction in Type-3 Wind Turbines
… throughout the years. However, with the rise of inverter-based resources, a new form of SSO emerged under the name subsynchronous control interaction (SSCI). More specifically, a resonance case occurs between Type-3 wind turbines and series compensation that can damage equipment within the wind …
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Control of Grid-Connected Converters using Deep Learning
With the rise of inverter-based resources (IBRs) within the power system, the control of grid-connected converters (GCC) has become pertinent due to the fact they interface IBRs to the grid. The conventional method of control for grid-connected converters (GCCs) such as the voltage-sourced …
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Flexible Control and Stability Paradigms for the Inverter-Dominated Power System
The addition of inverter-based resources (IBR), distributed energy resources (DER), and retirement of synchronous generation has resulted in significant changes to the transient characteristics of the bulk power system (BPS). This dissertation proposes new control and stability paradigms that …
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Inverter-based Control to Enhance the Resiliency of a Distribution System
… is a reduction in inertia as the percentage of inverter-based resources is increasing. This can bring about an issue with the maintenance and operation of the grid with respect to frequency and voltage. Thus, the ability of inverters to regulate the voltage and frequency becomes significant. …
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Phase control of delta-connected single-phase grid-forming inverters for auxiliary signal injection
… up of single-phase droop-controlled grid forming inverters arranged in a delta configuration. We begin by deriving the simplified $dq$ model of a three-phase ($3\phi$) grid-forming inverter and discuss proper selection of inner-current loop and outer-voltage loop gains for stability. We then …
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