Protecting the Adjacent Areas and Providing the Reliable Operation of Upper Water Reservoirs of Pumped Storage Power Plants Under Translation Waves Formation

The article considers the important issue of protecting the adjacent areas of pumped storage power plants (PSPPs) by ensuring the reliability of their hydraulic constructions. For calculating the height of translation waves that occur during the start up and stop of hydraulic units it is used a two-dimensional mathematical model based on the Saint-Venan differential equation. It was shown the results of full-scale research and numerical simulation of parameters of translation waves in the upper water reservoir of Dniester PSPP during operation in pumped and turbine modes. It was determined the shortcomings of the numerical simulation and suggested to improve it by using a correction coefficient that takes into account the presence of lateral water inflow into the main flow. The comparison of results showed their good convergence. Full-scale measurement of translation waves is based on the readings data from pressure sensors of type VEGAWELL72 installed in the upper reservoir of the Dniester PSPP. The necessity of improving the method of calculating and full-scale research of translation waves during the designing, building, and operating the PSPP was justified.