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P. Dolovai, H. Jörgl, J. Hirzinger:
"H∞ Controller Design for Speed Control of a Natural Gas Engine";
Talk: Chinese Control Conference, Kunming, Yunnan, China; 2008-07-16 - 2008-07-18; in: "Proceedings of the 27th Chinese Control Conference", (2008), ISBN: 9787900719706; 6 pages.

In this paper the design of a robust H∞ controller for the speed control of a natural gas engine is presented. The
gas engine is an internal combustion engine, has multi input - single output structure, is open loop unstable and has nonlinear
behavior. In order to obtain proper performance at any operating point of the power range of the engine, a robust H∞ controller
was utilized for speed control. One requirement is integral action of the controller, thus, due to physical limitations of the
controlled inputs, an anti-windup technique is presented. Simulations as well as test bench runs were performed, and the results
are also compared with a state of the art gain scheduled PID controller.

H∞ Controller Design, Robust Control, Engine Speed Control, Anti Windup