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 29 for “"Power system planning"”.
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Power system planning: an integrated techno-economic and portfolio approach
… of electricity. The most common tools used in power planning apply a minimum cost approach to it in order to find an appropriate electricity matrix. These tend to ignore risk what could lead to miscalculations on the expected cost of electricity production. In this work we implemented two …
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A decision making tool for evaluating uncertainties in electric power system planning
Planning of today's electric utilities demand careful consideration of issues such as environment, demand-side management, non-utility generation, and new technologies which are subject to different constraints and uncertainties. Utilities have long developed and used models for their short and …
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Uncertainty Modeling of Wind Power Generation for Power System Planning and Stability Study
… renewable energy resources are added to existing power grids. Among them, wind energy resources are becoming a major source of electricity generation. However, wind energy production has a critical downside: intermittency. The intermittent nature of wind energy in combination with the load demand …
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Modeling Considerations for the Long-Term Generation and Transmission Expansion Power System Planning Problem
Judicious Power System Planning ensures the adequacy of infrastructure to support continuous reliability and economy of power system operations. Planning processes have a long and rather successful history in the United States, but the recent infl‚ux of unpredictable, nondispatchable generation …
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Software Architecture Considerations for Facilitating Electric Power System Planning Incorporating a Variety of Design Categories
… of existing software applications for electric power system planning as well as some of the limitations that keep these applications from being more frequently used in distribution planning. This work presents a software framework that could facilitate much greater use of a wide variety of …
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Data-Driven Approaches for Enhancing Power Grid Reliability
… key operational and reliability issues in power systems. The first part of this thesis addresses a prevalent problem in power distribution networks: the accurate identification of load phases. This study develops a data-driven model leveraging consumption measurements from smart meters and …
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Modelling Extreme Forecast Errors in Wind Energy Using South African Wind Farms
… grid stability and guaranteeing a consistent power supply in the light of South Africa’s expanding shift to renewable energy. As they have a direct impact on scheduling, dispatch choices, and reserve allocation, extreme prediction errors in particular cause serious operational and financial …
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A PROBABILITY DISTRIBUTION APPROACH TO DESCRIBE CUSTOMER COSTS DUE TO ELECTRIC SUPPLY INTERRUPTIONS
… worth assessment is an important aspect of power system planning and operation. An equally important issue is how to utilize customer costs of electric supply interruption as surrogates to appropriately quantify reliability worth. The objective of this research work was to develop a …
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Grid Interfaces for Flexible and Resilient Distribution Systems
… microgrids is leading to fundamental changes in power system planning, operations, and control at unprecedented scope and speed. Utilities and their interconnection processes are struggling to cope with the numerous issues associated with high DER and microgrid penetration. Current …
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Composite system reliability evaluation using sequential Monte Carlo simulation
… used to assess the adequacy of composite power system networks. The sequential simulation approach is the most fundamental technique available and can be used to provide a wide range of indices. It can also be used to provide estimates which can serve as benchmarks against which other …
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Electricity system planning with distributed energy resources : new methods and insights for economics, regulation, and policy
… demonstrates a novel integrated electric power system planning framework that incorporates distributed energy resources (DERs), flexible and price-responsive demand, and distribution network losses and reinforcement costs. New methods are developed and demonstrated to derive the aggregate …
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Incorporating operational flexibility into electric generation planning : impacts and methods for system design and policy analysis
… electricity operations can impact long-term planning and analysis for future power systems, particularly those with substantial variable renewables (e.g., wind) or strict carbon policies. Operational flexibility describes a power system's ability to respond to predictable and unexpected …
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Uncertainty Quantification, State and Parameter Estimation in Power Systems Using Polynomial Chaos Based Methods
It is a well-known fact that a power system contains many sources of uncertainties. These uncertainties coming from the loads, the renewables, the model and the measurement, etc, are influencing the steady state and dynamic response of the power system. Facing this problem, traditional methods, …
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Risk Management of Cascading Failure in Composite Reliability of a Deregulated Power System with Microgrids
Due to power system deregulations, transmission expansion not keeping up with the load growth, and higher frequency of natural hazards resulting from climate change, major blackouts are becoming more frequent and are spreading over larger regions, entailing higher losses and costs to the economy …
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Reliability Impacts of Plug-in Hybrid Electric Vehicles on Power Systems
Modern power system aims to provide reliable, economic, as well as environmental friendly power supply to its customers. In the past few decades, power systems are going through considerable changes to both the power consumption side as well as the power generation side. The power system planners …
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Energy modelling in the South African electric power industry
… of this thesis is the development of a modelling system for the planning of the South African electricity supply industry. A power system planning process was developed with the object of ~stablishing a long-range development plan that would enable the selection and timing of individual projects. …
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A production simulation tool for systems with integrated photovoltaic energy sources.
… of renewable energy sources. Photovoltaic (PV) power is a renewable solar energy source that is increasing in use as its costs decrease. We have developed an assessment and planning tool to quantify the longer-term variable effects of large-scale PV energy production on power systems. The tool …
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A technique to incorporate the impacts of demand side management on generation expansion planning
… begun to emerge as a major component of utility planning, with more utilities than ever before using it to help meet their own needs and those of their customers. DSM encompasses utility and customer activities aimed at modifying load shape, which embodies the timing and level of customer …
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Integration of distributed small-scale photovoltaic and energy storage systems in power networks
… of distributed small-scale photovoltaic (PV) systems during the last decade has led to large installed capacities of grid-connected variable renewable energy in distribution networks. This trend is set to continue due to a combination of factors, such as the decreasing cost of technology and …
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Computational modeling of dynamic phase change materials in thermal energy storage for concentrated solar power
… advent of artificial intelligence and other high-power computing functions are among the biggest drivers of this increasing demand. The design and implementation of reliable, modernized power systems such as modular, networked microgrids is essential to meet this growing demand. Thermal energy …
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