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 47 for “"Frequency regulation"”.
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Energy storage for frequency regulation on the electric grid
Ancillary services such as frequency regulation are required for reliable operation of the electric grid. Currently, the same traditional thermal generators that supply bulk power also perform nearly all frequency regulation. Instead, using high power energy storage resources to provide frequency …
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Demonstration of HVAC chiller control for power grid frequency regulation
Secondary frequency regulation is a necessary electric grid ancillary service that balances electric power system supply and demand on short time intervals of seconds to minutes. Commercial HVAC chillers may be well positioned to provide secondary frequency regulation as a demand side resource. …
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Effective utilization of flywheel energy storage (FES) for frequency regulation service provision
… supply-demand balance – the so-called frequency regulation service. This service, also known by the technical term of automatic generation control (AGC ), is absolutely essential to maintain the frequency of the power system at its nominal value, which is 60 Hz in the United States and …
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A framework for enabling the utilization of flexible loads to provide frequency regulation
Frequency regulation is becoming increasingly important with deeper penetration of variable generation resources. This dissertation is about exploiting the flexibility of distributed energy resources (DERs) to provide frequency regulation though the framework of an aggregator, which groups DERs …
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Enabling wind turbine generators to participate in power grid frequency regulation for enhanced stability
<p>"This dissertation focuses on wind farm frequency regulation capability to maintain the grid frequency stability. Wind plant power controllers are designed and tested for participation in grid frequency restoration. The small signal stability on sub-optimal operating points is analyzed and a …
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CONTROL METHODS FOR BESS POWER CONVERTERS AND FREQUENCY REGULATION IN A LOW INERTIA GRID
… is very low and they are more vulnerable to frequency instability in the event of a sudden and large power mismatch. To address this issue, a battery energy storage system (BESS) is considered a suitable option due to various factors such as better reliability, fast response, continuous …
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Hardware-in-the-loop platform for the coordination of distributed energy resources to provide frequency regulation services
… provide value to the grid. One such service is frequency regulation, which is among the ancillary services provided in the open market management of the grid, and which has high value as it is important to maintain stability in the grid. This thesis presents a hardware-in-the-loop platform for …
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Vehicle to grid (V2G) for reliable microgrid operation: Voltage/frequency regulation and real-time OPAL-RT digital simulation
… work, we will achieve a decent voltage and frequency regulation in an islanding microgrid. In this project we will consider an emergency situation that happens by a fault or blackout so the system will be disconnected from the grid, in a concept that a home (or residence) is equipped with a …
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System Frequency Support of Permanent Magnet Synchronous Generator-Based Wind Power Plant
… plants will likely result in the poor overall frequency regulation performance. On the other hand, permanent magnet synchronous generator wind Turbine System (PMSG-WTG) with full power back to back converters tends to become one of the most promising wind turbine technologies thanks to various …
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Análise do impacto da geração eólica na regulação de frequência de sistemas de energia elétrica
… to the participation of wind power plants in the frequency regulation of electric power systems after major disturbances in the grid. By means of electromechanical transient simulations, the benefit of the frequency regulation controls - present in the modern models of wind turbines - is evaluated …
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Market Analysis and Control Design for the Grid Integration of Battery Storage and Heat Pumps
… great potential to provide affordable ancillary frequency services, their effective integration requires to consider the operation of interconnected heating systems. As a result, under the current market design and control frameworks, system operators must balance economic efficiency with system …
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Frequency Stability Constrained Grid Operation with High Penetration of Renewables
… presents considerable challenges in maintaining frequency stability, especially following disturbances.</p> <p>Two possible solutions are proposed to address the first issue. Firstly, a speedy real time generation dispatch can be scheduled to allocate generation resources within short time …
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Load Frequency Control for Electric Water Heater Using DBSCAN Algorithm in real-time
Electric grid frequency stability requires precise balance between supply and demand, a challenge intensified by increasing renewable energy penetration and fluctuating consumption patterns. This thesis develops and validates a novel control strategy for residential water heaters to provide …
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Integration of electric vehicles into power systems
… can be used as mobile energy storage systems for frequency regulation, which refers to vehicle-to-grid (V2G) applications. Since power generation must be controlled to continuously meet demand, and any imbalance between supply and demand will cause voltage and frequency deviation, short-term load …
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Batteries in Electricity Markets: Economic Planning and Operations
… different participation stages and markets. For frequency regulation markets, this dissertation proposes a real-time control policy that optimally trades-off the performance penalty and the degradation cost in frequency regulation operations. A optimal bidding policy is designed based on the …
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Optimal Management and Sizing for Battery Energy Storage Systems for Grid Applications
… both technologically and in terms of regulation compliance. Thus, it is necessary to examine best practices for fully optimizing BESS sizing, operation, and scheduling in the context of benefiting BESS operators and investors by fully exploiting the valuable economic and technical …
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Optimization and control of wind energy systems for grid integration
… portfolio challenging if power quality and grid frequency is to be maintained. In a conventional power system, grid frequency regulation is typically achieved by means of some form of active power control (APC) of power generation plants. Active power control of plant power output aims to …
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Protection, Automation, and Frequency Stability Analysis of a Laboratory Microgrid System
… and a centralized SEL controller to automate frequency regulation through load shedding, power factor correction, generator and utility synchronization, and relay protection group switching.</p>
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Design, Implementation and Evaluation of a Microgrid in Island and Grid Connected Modes with a Fuel Cell Power Source
… microgrid in both islanded (VSC with voltage and frequency regulation) and grid connected (VSC with current control for power transfer). The experimental laboratory microgrid was constructed and operated in real-time performing its black start and managed transitions between island and grid …
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PSCAD Modeling and Stability Analysis of a Microgrid
… and comparison between real & reactive power regulation and voltage & frequency regulation.</p>
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