Study on hydraulic transient process of K hydropower station with low head, large flow and complex long tail water system

K hydropower station is a hydraulic engineering with the main task of power generation, which also typical low head, large discharge and long tail water conveyance system. The characteristics these-type stations are high inertia, amplitude surge chamber level fluctuation poor stability units. Therefore, due to control requirements stability, area horizontal section usually large, leads period relatively time unit output oscillation in transition process, regulating quality often difficult meet inertia constant flow system unique characteristic curve unit. It important design appropriately ensure safe stable operation station. In this paper, it shown process stations. According station, simple restricted orifice compared terms including head loss steady operation, operation. Based on optimized chamber, overall calculation analysis carried out, concluded that fine maximum pressure pipe control, provide strong support for comprehensive thorough paper can reference similar projects.