Francis Turbine and Governor Improved Models Considering Step Closing Law of Guide Vanes for Power System Stability Analysis | Zendy

Yuheng Tang | Zendy

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Francis Turbine and Governor Improved Models Considering Step Closing Law of Guide Vanes for Power System Stability Analysis

Author(s) -

Yuheng Tang

Publication year - 2014

Publication title -

journal of power and energy engineering

Language(s) - English

Resource type - Journals

eISSN - 2327-5901

pISSN - 2327-588X

DOI - 10.4236/jpee.2014.29018

Subject(s) - governor , closing (real estate) , francis turbine , stability (learning theory) , engineering , turbine , power (physics) , control theory (sociology) , law , control engineering , computer science , mechanical engineering , aerospace engineering , political science , physics , control (management) , artificial intelligence , thermodynamics , machine learning

The Francis turbine governing system models in PSD-BPA can’t precisely reflect the actual characteristics. Endeavor was done in this paper to solve the problem. An improved model of actuating mechanism was developed, which could reflect the step closing characteristic of hydro guide vanes. The effect of the inflection point value of actuating mechanism on load rejection was analyzed based on simulation. The non-linear Francis turbine model with power versus gate position module was researched in this paper. Based on field test, comparisons of simulation results with measured data were presented. The analysis demonstrates that the improved models of Francis turbine and governor proposed in this paper are more realistic than the models of BPA, and can be applied in power system simulation analysis better.

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