A new method for regulating Pelton turbine based on ejection of discharged flow

Hydropower plants (HPPs) contribute a significant share of Russia’s electricity generation. With the prospects developing this sector and harnessing hydroenergy potential, it is necessary to consider methods for modernizing hydroelectric installations. This article examines new method regulating active (Pelton) turbines based on modifying nozzle flow rate through ejection spent liquid from runner using jet pump. The relevance solution lies in potential increase operational duration high-head pumped-storage hydropower (PSHPPs) improve reliability by eliminating or reducing intensity operation needle guide apparatus. Various structural configurations incorporating pump into hydrosystem HPPs/PSHPPs with Pelton hydro are discussed. Parallel series offer specific advantages disadvantages. A methodology determining expression calculate parameters injecting device, depending turbine’s characteristics, presented mathematical model central nozzle.