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Maximum-Slew-Rate Nonlinear Control for Improved Transient Response in Hydrogenerators

by J. Jaeger, Univ of Illinois, Urbana, IL, USA,
L. Wozniak, Univ of Illinois, Urbana, IL, USA,



Document Type: Proceeding Paper

Part of: Waterpower '85

Abstract:

This paper considers a linearized model for fixed blade turbines. This paper demonstrates that constant gate speed bang-bang control holds potential advantages over current control techniques. The main advantage is that speed deviation settling time can be substantially reduced without increasing its peak overshoot. In the particular example presented settling time was decreased by 60%. An additional benefit of reduced wear and tear may be realized due to the deadbeat nature of system transients. This controller achieves and surpasses the anticipatory characteristics of the derivative control with the added advantage of not being affected by noise.

Subject Headings: Transient response | Control systems | Turbines | Hydraulic transients | Gates (hydraulic) | Nonlinear response | Noise pollution

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