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|Abstract:||In this work, the development of model-based feedback control that stabilizes an unstable equilibrium is obtained for the Modified Hasegawa-Wakatani (MHW) equations, a classic model in plasma turbulence. First, a balanced truncation (a model reduction technique that has proven successful in flow control design problems) is applied to obtain a low dimensional model of the linearized MHW equation. Then, a model-based feedback controller is designed for the reduced order model using linear quadratic regulators. Finally, a linear quadratic Gaussian controller which is more resistant to disturbances is deduced. The controller is applied on the non-reduced, nonlinear MHW equations to stabilize the equilibrium and suppress the transition to drift-wave induced turbulence.|
|Citation:||Goumiri, IR, Rowley, CW, Ma, Z, Gates, DA, Krommes, JA, Parker, JB. "Reduced-order model based feedback control of the modified Hasegawa-Wakatani model" Physics of Plasmas, 20, 4, 042501 - 042501, doi:10.1063/1.4796190|
|Pages:||042501 - 042501|
|Type of Material:||Journal Article|
|Journal/Proceeding Title:||Physics of Plasmas|
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