Effects of Pump-turbine S-shaped Characteristics on Transient Behaviours: Model Setup

HYPERBOLE Symposium 2017 (HYdropower plants PERformance and flexiBle Operation towards Lean integration of new renewable Energies)

Zeng, Wei^1 ; Yang, Jiandong^1 ; Hu, Jinhong^1

State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan

430072, China^1

关键词: Collection systems;    Electrical control system;    Grid connections;    Hydraulic transients;    Hydraulic transitions;    Measurement system;    Pumped storage station;    Transition process;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/813/1/012055/pdf
DOI  :  10.1088/1742-6596/813/1/012055

来源: IOP

【 摘 要 】

Pumped storage stations undergo numerous transition processes, which make the pump turbines go through the unstable S-shaped region. The hydraulic transient in S-shaped region has normally been investigated through numerical simulations, while field experiments generally involve high risks and are difficult to perform. In this research, a pumped storage model composed of a piping system, two model units, two electrical control systems, a measurement system and a collection system was set up to study the transition processes. The model platform can be applied to simulate almost any hydraulic transition process that occurs in real power stations, such as load rejection, startup, frequency control and grid connection.