Modeling and Active Control of Thermoacoustic Instabilities
| Authors: | Niederberger Andre, ETH Zuerich, Switzerland
Schuermans Bruno B.H., ALSTOM Switzerland Ltd., Switzerland
Guzzella Lino, ETH Zuerich, Switzerland |
|---|
| Topic: | 6.3 Power Plants and Power Systems |
|---|
| Session: | Power Plants and Power Systems Modelling and Control |
|---|
| Keywords: | Gas Turbines, Control Oriented Models, Active Control, Robust Control,Power Systems |
|---|
Abstract
Due to stringent emission regulations, modern gas turbines work in leanpremixed mode and thermoacoustic instabilities are often observed. They causemechanical damage and therefore have to be reduced. This paper describes thedevelopment of an acoustic network model for a lab-scale lean premixed methanecombustor at ETH Zurich. The model is verified against experimental data and isthen used to develop an H1-controller, with special concern given to fundamentallimits imposed by the system. The proposed controller is then verified in simulations.
