Reduced-order model based feedback control of the modified Hasegawa-Wakatani model
- Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, New Jersey 08544 (United States)
- Princeton Plasma Physics Laboratory, Princeton, New Jersey 08544 (United States)
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.
- OSTI ID:
- 22130442
- Journal Information:
- Physics of Plasmas, Vol. 20, Issue 4; Other Information: (c) 2013 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
- Country of Publication:
- United States
- Language:
- English
Similar Records
A non-modal analytical method to predict turbulent properties applied to the Hasegawa-Wakatani model
A non-modal analytical method to predict turbulent properties applied to the Hasegawa-Wakatani model