Performance Improvement of a Pump-Turbine by Guide Vane Individual Control

Abstract

In order to improve performance of a reversible pump-turbine, individual guide vane control was studied. First, selection of components and layout of these components were discussed, after that each guide vane opening to improve an efficiency and vortex rope in a partial flow were investigated. Servo valve and actuator has to be adopted to decrease the space and force to structures. Hydraulic performance is improved by guide vane individual control.