Reduced-Order Model Based Feedback Control For Modified Hasegawa-Wakatani Model
In this work, the development of model-based feedback control that stabilizes an unstable equilibrium is obtained for the Modi ed Hasegawa-Wakatani (MHW) equations, a classic model in plasma turbulence. First, a balanced truncation (a model reduction technique that has proven successful in ow control design problems) is applied to obtain a low dimensional model of the linearized MHW equation. Then a modelbased feedback controller is designed for the reduced order model using linear quadratic regulators (LQR). Finally, a linear quadratic gaussian (LQG) 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.
- Research Organization:
- Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- DE-ACO2-09-CH11466
- OSTI ID:
- 1062399
- Report Number(s):
- PPPL-4848
- 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