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 19 of 19 for “"Ancillary Service"”.
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Active power ancillary service provision of commercial building energy storage resources
The aim of this thesis is to propose new control strategies of building energy storage systems and analyze their effects on operations of power grids and electricity markets. Specifically, novel control schemes of plug-in electric vehicles (PEVs) and variable speed heat pumps (VSHPs) are proposed …
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Data-driven coordination of assets in power distribution systems for ancillary service provision
… (DERs) in power distribution systems to provide ancillary services including active power provision and reactive power regulation. The proposed frameworks generally consist of three components, namely (i) an input-output (IO) model of the system describing the relation between the variables of …
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Analysis and characterization of ancillary service demand response strategies for variable air volume HVAC systems
… firm generators used for reserves and other ancillary services. Residential and commercial buildings account for a large portion of the electricity consumed in the U.S. and can play a significant role in smart grids to help meet challenges brought about by intermittent renewable generation. …
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Optimization of Distribution Systems: Transactive Energy and Resilience Enhancement
… EVs and DERs can provide electricity service and restore critical loads when the utility system is unavailable. On the other hand, during normal operation, these proactive devices can provide ancillary services to alleviate voltage fluctuations and support frequency regulation. In …
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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
… limited reserve capacity, impaired ancillary service performance, and compromised transient stability. These complexities also hinder the applicability of conventional operational reliability indices. This dissertation addresses these challenges by developing advanced methodologies …
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Improving the use of commercial building HVAC systems for electric grid ancillary services
… grid-scale flexibility, often provided through ancillary services. Buildings can play a significant role in meeting this challenge by providing ancillary services with their HVAC systems. However, use of commercial HVAC systems in this way comes with significant challenges, which relate to …
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Market Analysis and Control Design for the Grid Integration of Battery Storage and Heat Pumps
… rapid expansion of battery storage has saturated ancillary service markets, and storage is actively participating in wholesale electricity markets. While heat pumps have great potential to provide affordable ancillary frequency services, their effective integration requires to consider the …
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Airline revenue management with dynamic offers : bundling flights and ancillary services
… set of offers and prices. In these offers, ancillary services may be bundled with the flight. Selecting and pricing these offer sets represents a new joint pricing and assortment optimization problem in revenue management. We propose a formulation for the dynamic offer generation problem and …
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Power draw scheduling of electric and plug-in hybrid electric vehicles with unidirectional vehicle-to-grid benefits
… power-draw scheduling are presented. Ancillary service levels possible with unidirectional vehicle-to-grid are quantified using different charging scenarios. Impacts of various electric and plug-in hybrid vehicle power-draw schedules, and the vehicles’ participation as demand-response …
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Value of distribution-level reactive power for combined heat and power systems
… a transactive market for DER to provide grid services, which are services required to support reliable grid operation. Though work has been done to understand some of the technical mechanisms of this type of market, gaps still exist in understanding the value and market opportunity of …
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Ancillary services in the airline industry : passenger choice and revenue management optimization
The recent proliferation of ancillary services means that airline passengers can face substantially different ancillary service prices and offerings based on their itinerary and fare class selection. At the same time, airlines have become interested in accounting for this supplementary revenue …
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Demonstration of HVAC chiller control for power grid frequency regulation
… 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. Commercial …
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Optimizing battery swapping stations for electric vehicles and power system integration
… a critical role in balancing power grids through ancillary services. This thesis presents a comprehensive framework for the optimization of BSS operation by focusing on three key aspects: scheduling of battery charging–discharging operations, optimal placement and sizing of BSS, and integration of …
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Preventive assessment and enhancement of power system voltage stability: an integrated approach of thermal and voltage security
… market where providing reactive reserves is an ancillary service which should be properly paid. Most of the methods proposed in this thesis were successfully tested on realistic power system models. From a practical viewpoint all the above computations have been coupled to the fast time-domain …
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Impact of prenatal screening on future resource utilization in pregnancy
… in clinical obstetrics as previously these services had only been routinely offered to women who would be 35 or older at the time of delivery; however, maternal age alone is a poor predictor of fetal aneuploidy. Obtaining reliable data on prenatal screening utilization is problematic in …
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Valuing of inertia and fast-acting storage devices in interconnected power grids
… storage devices can provide both energy and ancillary services through some specific control algorithms. Such energy and ancillary service designs for non-conventional units require test systems that represent the characteristic complexity and features of actual power systems. To provide …
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Predictive and Prescriptive Analytics in Operations Management
… in the second chapter through the problem of ancillary services in targeted advertising under an ML lens. This chapter aims to predict the Net Present Value (NPV) of these services, estimate the probability of a customer subscribing to each of them depending on what services are offered to …
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Next Generation Grid-Tied Inverters with Virtual Synchronous Machine Features for Grid Services and Grid Support
L'abstract è presente nell'allegato / the abstract is in the attachment
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Effective utilization of flywheel energy storage (FES) for frequency regulation service provision
… 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 50 or 60 Hz in other …