Addressing voltage sag contribution of an optimally sized Industrial Hybrid Power System
Using a multi-objective sizing framework considering cost and CO2 emission
M. Deutman (TU Delft - Electrical Engineering, Mathematics and Computer Science)
Pavol Bauer – Graduation committee member (TU Delft - DC systems, Energy conversion & Storage)
Laura Ramirez Ramírez-Elizondo – Mentor (TU Delft - DC systems, Energy conversion & Storage)
J.J. Alpizar Castillo – Graduation committee member (TU Delft - DC systems, Energy conversion & Storage)
Miloš Cvetković – Graduation committee member (TU Delft - Intelligent Electrical Power Grids)
G.A. Koolman – Graduation committee member (Royal HaskoningDHV)
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Abstract
This thesis titled "Addressing voltage sag contribution of an optimally sized Industrial Hybrid Power System" introduces a framework for sizing an industrial Hybrid Power System (HPS) to minimise Cost and CO2 emissions relative to connecting the industrial site directly to the grid with the help of a genetic algorithm, specifically NSGA-II. The framework utilises an Energy Management System (EMS) that is based on a rolling average principle which attempts to restrict the change in grid consumption from one time step to the next. The optimally sized configuration and its new grid consumption profile are analysed in the CIGRE MV Distribution Network to assess the effects of the new consumption profile on the bus voltages. The combination of a rolling average-based EMS and an optimal sizing with NSGA-II resulted in a $47\%$ reduction of the CO2 emissions while not worsening the voltage behaviour in the system (with a focus on voltage sag introduced by large loads).