1.Faculty of Civil Engineering and Mechanics, Kunming University of Science and Technology, Kunming, Yunnan 650500, China; 2.Faculty of Electric Power Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650500, China; 3.Library, Kunming University of Science and Technology, Kunming, Yunnan 650500, China; 4.School of Engineering, University of Aberdeen, Aberdeen, AB24 3UE, UK
Abstract：The simulation method was used to verify the differential algebra model of hydro turbine with elastic water column. Firstly, the derivation procedure of hydraulic dynamic differential equation with elastic water column was given, and the Simulink simulation module of the nonlinear hydro turbine was established. Comparing the differential equation model of hydraulic system with other traditional me-thods, such as the transfer function, higher order transfer function, different form transfer function and characteristic line, the changes of hydro turbine power and head in transient were analyzed, the precision and applicability of the differential equation model in hydro turbine transient procedure were stu-died. Results show that head and power values of the nonlinear differential algebra model of hydro turbine in transient are consistent with that of other traditional methods, and proposed model can meet the requirement of researching the transient characteristics of hydro turbine.
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