Reversible Pump-turbine and Motor-Generator Designs a Large Pumped Storage Power Plants Experience

摘要

This paper presents, after introducing past experience, the last ALSTOM achievements experience with new reversible Pump/Turbine plants whose units cover a large net head range (650J/kg ≤ Rated specific hydraulic energy ≤ 8000J/kg). For these projects, the main specific sites and operating conditions requirements are recalled. We introduce ALSTOM methodology in hydraulic designing reversible Pump/Turbines with emphasis in improvements thanks to the use of up to date computational fluid dynamics (CFD) tools. The main theoretical hydraulic design steps are recalled and their application to these projects presented. At last, model tests results are used to validate the whole process. We also present the mechanical basic design of these projects as well as the design of the motor-generators applied to the operating condition of PSP units. The management of the manufacturing in different countries is also developed.