DESIGN AND MODELLING OF A HYBRID PRESSURE REGULATOR

2022-9-14
Gürfidan, Mehmet Gökalp
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Pressure regulator is used for regulating high upstream pressure to required low downstream pressure. It is especially an important component for space applications where an accurate pressure control is vital, and failure to do so can cause mission failure. In this thesis a novel pressure regulator design is modeled that eliminates the inherent steady state error of purely mechanical pressure regulator by introducing cascaded electromechanical actuator. Dynamic components of the proposed hybrid pressure regulator are explained and mathematically modeled. Three system models are derived, namely nonlinear system model, simplified nonlinear model and linearized model. PID controller is designed for the actuator. Finally, hybrid pressure regulator is simulated using Matlab-Simulink with different operation scenarios with and without fault injection, and results are compared with a traditional mechanical pressure regulator having same design parameters.
Pressure Regulator, Nonlinear System Model, Controller Design
https://hdl.handle.net/11511/99766
Graduate School of Natural and Applied Sciences, Thesis

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Citation Formats
M. G. Gürfidan, “DESIGN AND MODELLING OF A HYBRID PRESSURE REGULATOR,” M.S. - Master of Science, Middle East Technical University, 2022.
METU IIS - Integrated Information Service open@metu.edu.tr