The causes of resonance of a certain model pump-turbine unit during startup process were investigated in this article. A three-dimensional full flow path analysis model which contains spiral case, stay vanes, guide vanes, runner, gaps outside the runner crown and band, and draft tube was constructed. The transient hydraulic excitation force of full flow path was analyzed under five conditions n...

This chapter proposes a solution for the control of micro hydro power stations for island operation based on the characteristics of hydraulic turbine nonlinear model with the use of a self-excited induction generator. To control the frequency of the turbine it was considered the non-linear model applied to this type of turbine and the use of a frequency regulator, with characteristics of a prop...

This paper proposes a fuzzy modelling and identification approach oriented to the design of a PI fuzzy controller for regulating both the pitch angle and the reference torque of a wind turbine model. This strategy has been suggested for enhancing the regulator design that could represent an alternative to the standard switching controller, already implemented in the wind turbine test system. Th...

Hard particles as Quartz and Feldspar are present in large amount in most of the rivers across the Himalayan basins. In run-off-river hydro power plants these particles find way to turbine and cause its components to erode. Loss of turbine material due to the erosion and subsequent change in flow pattern induce several operational and maintenance problems in the power plants. Reduction in overa...

The choice of hydraulic turbine manufacturer and their performance assessment are becoming major challenges. Evaluating product criterion and selecting optimum manufacturer are complicated tasks due to the fact that various criteria or objectives must be considered in the decision making process having various importance. In this study, we proposed a hydro turbine manufacturer selection analysi...

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This work presents a comparison study between the state-space and polynomial methods for the design of the robust governor for load frequency control of steam turbine power systems. The robust governor is synthesized using the two approaches and the comparison is extended to include time and frequency domains performance, controller order, and uncertainty representation, weighting filters, opti...