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 10 of 10 for “"Multimachine"”.
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AN OPTIMAL VARIABLE STRUCTURE STABILIZER FOR A MULTIMACHINE GENERATING PLANT
In recent years, intermachine oscillations in a multimachine plant have received particular attention from power system engineers due to the undesirable effects of these oscillations on the system, and also due to the fact that the individual stabilizers now in use are not effective in damping out …
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Application of genetic algorithms for irrigation water scheduling
… are supplied water sequentially. Next, the multimachine models are presented which model the irrigation water distribution systems where several farmers may be supplied water simultaneously. Two types of multimachine models are defined. The simple multimachine models where all the farmers …
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Non-linear excitation and governor control
… connected to an infinite busbar as well as multimachine systems were considered. Control laws for rotor angle and field flux are derived. The closed loop system is shown to be asymptotically stable. The system can be transferred to a new operating condition corresponding to any desired …
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Voltage and stability analysis of distribution networks with non-conventional energy sources
… Power System Toolbox was used for analysis.The multimachine power system models used in this thesis are generated in MATLAB code. The load flow is performed on the multimachine power system correponding to the loading condition to be investigated. The machines are represented by the two-axis …
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Multi-Time-Scale Modeling and Aggregation of Higher Order Synchronous Machine Models (Power Systems, Reduced, Singular Perturbation)
… are extended from the single-machine case to the multimachine case. The machine-network interface equation is derived in the case of purely resistive/inductive transmission lines and loads. Third, an approach to the development of dynamic multiarea equivalents incorporating the effects of field …
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Modeling of power system dynamics in the medium time scale
… terms are obtained in the swing equation in a multimachine environment by approximating the integral manifold associated with fast damper windings. This provides a theoretical basis for the practice of adding cross-damping terms to the swing equation to account for damping present in the …
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Hierarchical volumetric object representations for digital fabrication workflows
… representations are used as inputs to a modular multimachine CAM workflow. Toolpath generation is implemented, characterized, and tested on a complex solid model. We conclude with a summary of results and recommendations for future research directions.
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On-Line Transient Stability Analysis of a Multi-Machine Power System Using the Energy Approach
… the PMUs and the Transient Energy Function of a multimachine system. Thanks to the PMUs, the weakness of the direct methods, which is the over-simplification of the generator model, is overcome. This new method consists of fitting a curve to the data of the post-fault path provided by PMUs and …
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Synchronous generator and excitation system response to GIC
… system's response to GIC. Using a 4-bus and a multimachine power system modelled in MATLAB Simulink, this project shows that the power system's response to low frequency GIC (acGIC) is different to the conventional dc approximation (dcGIC). In both cases, harmonic analysis was carried out. It …