| 摘要 |
A turbine driven electric power production system and a method for control thereof are proposed. The system comprises a turbine (2) arranged for being driven by a fluid (3) having a fluid speed (v) varying in time, said turbine (2) connected to a hydrostatic displacement pump (6) further connected to a hydrostatic displacement motor (8) as part of a closed loop hydrostatic transmission system. The electric power production system (1) comprises a loop control system (15, 15a) further arranged for continuously receiving a speed signal (11) representing the speed (v) of said fluid, and also continuously receiving a turbine rotational speed signal (12m) representing calculating a control signal (16) for a volumetric displacement control actuator (17) for continuously adjusting a volumetric displacement (d) of said hydrostatic motor (8), for enabling to maintain a set turbine tip speed ratio (tsr) and thereby achieving an improved power efficiency of the power production system (1) during fluctuations in said fluid speed (v). |
