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 57 for “"Economic dispatch"”.
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Decentralized economic dispatch for radial electric distribution systems
… is assumed to be done using centralized economic dispatch. Given a very large number of small customers and their diverse preferences, it would be computationally expensive to implement centralized economic dispatch at the distribution level with perfect information. In this thesis, an …
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Risk-sensitive security-constrained economic dispatch via critical region exploration
A security-constrained economic dispatch (SCED) problem is regularly solved by system operators in electric power networks to make day-ahead and real-time dispatch decisions. Preventive SCED is conservative and requires dispatch decisions that are secure against any single component failure. …
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Dynamic economic dispatch of power systems by multi-pass dynamic programming
… the Load Frequency Control problem and the Economic Dispatch problem together to form a dynamic optimal control problem. A power system was partitioned into the Electric Power Network subsystem and the Mechanical Power Control subsystem. Earlier work has solved the Electric Network subsystem …
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Statistical Scheduling of Economic Dispatch and Energy Reserves of Hybrid Power Systems with High Renewable Energy Penetration
<p>A statistical scheduling approach to economic dispatch and energy reserves is proposed in this paper. The proposed approach focuses on minimizing the overall power operating cost with considerations of renewable energy uncertainty and power system security. A hybrid power system generates …
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Solving dynamic economic dispatch problems using pattern search based methods with particular focus on the West Doha Power Station in Kuwait
This thesis is concerned with Dynamic Economic Dispatch (DED) problems, in particular in the context of the current and future needs of the electrical power system in the State of Kuwait. General Economic Dispatch (ED) issues are addressed, under both static and dynamic conditions, with valve-point …
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Machine Learning based Methods to Improve Power System Operation under High Renewable Pennetration
… reserve man- agement, unit commitment, and economic dispatch, and presents unique challenges to the distribution system, including predicting solar adoption by the user as well as forecasting end-use load profiles. While these problems are complex, advances in machine learning and artificial …
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Power system planning: an integrated techno-economic and portfolio approach
… In this work we implemented two methods, economic dispatch and CVaR minimization, to address risk and formulate a suitable portfolio for the Brazilian electricity matrix. We found that to minimize the risk in case of extreme fuel price events, our model allocated the Brazilian electricity …
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Optimal Energy Management of a SAGD Microgrid Participating in a Volatile Electricity Market
… system (EMS) for the optimal scheduling and economic dispatch of a microgrid system incorporating distributed sources of energy generation as well as energy storage. A microgrid located on an Alberta SAGD facility, comprising a waste heat-to-electricity Rankine cycle, gas turbine and energy …
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Consensus-Based Active and Reactive Power Control and Management of Microgrids
… and storage technologies. Microgrids bring economic benefits, efficiency, reduced emissions, and improved power quality. Their success hinges on cost reductions in renewables, storage, reliability, and energy management systems, enabling operation both with and without the utility grid.</p> …
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Generation dispatch with large-scale photovoltaic systems
… power system networks. However, generation dispatch strategy which is equally vital for solving operational challenges presented by non-conventional sources such as large-scale PV systems remain under-utilized. The list of well-known operational challenges associated with large-scale PV …
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Distributed Control, Optimization, and State Estimation for Renewable Power System
… three important problems in power systems, i.e., economic dispatch, state estimation, and optimal power flow. First, the Distributed Economic Dispatch (DED) approach is proposed. In this part, both the PI controller and Neural Network (NN) controller are utilized to design the distributed …
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Decarbonizing the US Power Sector
… which is a greenfield capacity expansion and economic dispatch model, and Evolving Grid (EG), which is a brownfield capacity expansion and economic dispatch model. These models are an especially novel addition to the current arsenal of publicly available capacity expansion models because they …
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Malicious data detection and localization in state estimation leveraging system losses
In power systems, economic dispatch, contingency analysis, and the detection of faulty equipment rely on the output of the state estimator. Typically, state estimations are made based on the network topology information and the measurements from a set of sensors within the network. The state …
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Convex relaxation based locational marginal prices for electricity markets
… Our analysis reveals that when the nonconvex economic dispatch problem has zero duality gap, the RLMPs exhibit properties similar to locational marginal prices with linearized power flow equations. Otherwise, they behave similarly to convex hull prices. Restricted to radial distribution …
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Distributed online algorithms for energy management in smart grids
… proposes algorithmic solutions for distributed economic dispatch based on Subgradient method and Alternating Direction Method of Multipliers (ADMM), both designed to be agnostic with any initialization vector. The proposed distributed online solutions leverage a dynamic average consensus …
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An open-source object oriented power systems analysis software solution implemented in ISO C++
… constrained optimal power flow (SCOPF), and economic dispatch (ED). Among all the problems, there is at least one thing often in common. Every power analysis problem requires the power flow of the system, a snapshot of the steady-state of the voltages and angles of each bus of the power …
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Multiprocessing with microprocessors for power flow analyses
… applications are studied. A novel algorithm for economic dispatch with and without transmission losses is presented. The algorithm utilizes a closed form expression for the calculation of the Lagrange multiplier thereby avoiding any iterative process in the calculation. Different nonlinear …
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Applications of load flow by hybrid computer
… was also investigated. An algorithm for the economic dispatch problem was developed. Finally, conclusions were made about the applicability of the hybrid load flow to the electric power industry and recommendations were presented for further research.
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Optimal GENCO bidding strategy
… costs, for example: Combined Cycle units. Economic dispatch with Combined Cycle units becomes a non-convex optimization problem, which is difficult if not impossible to solve by conventional methods. Several techniques are proposed here: Mixed Integer Linear Programming, a hybrid method, as …
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