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 6 of 6 for “"load tap changer"”.
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Transformer load tap changer control using IEC 61850 GOOSE messaging
The research of this thesis implements Load Tap Changer (LTC) control using the International Electrotechnical Commission (IEC) 61850 standard in a laboratory environment. In particular, Generic Object Oriented Substation Event (GOOSE) messages are used to facilitate all required communication. A …
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Development of Industrial Internet of Things Architecture and Business Strategy for Digital Substation Asset Management
… component manufacturing, especially the on-load tap changer for transformers. However, as changes in the industry are creating new competitors and demand for higher quality and efficiency, there is now an increased need to employ new technology focused on connectivity and data to maintain …
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Online Voltage Stability Monitoring and Control Using Limited Synchrophasor Measurements
… dynamic mechanisms. To extend the model from one load bus to a critical load center, Optimal Power Flow-Loading limit (OPF-LI) is developed to assess the voltage stability margin. To utilize limited available PMU measurements, State Calculator (SC) is included in the algorithm to approximate the …
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Artificial Intelligence Applications in the Diagnosis of Power Transformer Incipient Faults
… as the best choice. Several methods for on-load tap changer (OLTC) coking diagnosis were also investigated, and a MLP based modular network was identified as the best choice. Logistic regression analysis was identified as a good auditor in neural network input pattern selection processes. …
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Dynamic voltage optimisation of MV/LV networks
… (ODCD) to dynamically implement CVR using on load tap changer (OLTC) transformers and switchable capacitors as the control devices, the performance of CVR with regard to reducing energy consumption was investigated on several realistically modelled LV networks for different seasons of a sample …
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Data-driven coordination of assets in power distribution systems for ancillary service provision
… applied to address the problem of coordinating load tap changers (LTCs)---an important class of assets used for voltage control in distribution networks---using only measurements of voltage magnitudes. Different from the ODCP that is cast as a static optimization problem, the optimal LTC …