Browsing by Author "Sharma, Pranav"
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- Real-Time Modal Analysis of Electric Power Grids-The Need for Dynamic State EstimationNetto, Marcos; Krishnan, Venkat; Mili, Lamine M.; Sharma, Pranav; Ajjarapu, Venkataramana (IEEE, 2020)We articulate the reason why dynamic state estimation is needed to push the boundaries of the modal analysis of electric power grids in real-Time operation. Then, we demonstrate how to unravel linear and nonlinear modes by using the extended dynamic mode decomposition along with estimates of the synchronous generators' rotor angles and rotor speed deviations from nominal speed. The estimated modes are associated with electromechanical oscillations that take place continuously in electric power grids because of imbalances between power generation and demand. The numerical simulations are performed on a synthetic, albeit realistic, 2,000-bus network that was designed to resemble the electric power grid of Texas.
- Risk Prediction Sentiment AnalysisHimler, Tom; Sharma, Pranav; Taing, Eriq; Akula, Akshay; Joaquin, Evan (Virginia Tech, 2021-12-13)Risk Sentiment Analysis proposes a solution for companies to evaluate user submitted reports to determine workplace safety. The web application develops a pipeline for managers to submit employee CSVs to be processed through a custom sentiment analysis model in AWS. Alongside that, it has graphical presentation capabilities to easily interpret queried data. Finally, the web application supports a feedback loop of re-training the model to improve its accuracy with a page dedicated for human review.