Research on the Application of 2-D Sediment Mathematical Model and Deposition Control in Pumped Storage Power Station Reservoirs

2021 ◽  
pp. 1-41
Author(s):  
Jian Chen ◽  
Qinqin Liu ◽  
Xin Li ◽  
Xuecheng Fu
Keyword(s):  
Mathematical Model ◽  
Power Station ◽  
Pumped Storage ◽  
Deposition Control

Influence of Tailrace Surge Chamber with Standpipe on Draft Tube Pressure

2014 ◽  
Vol 607 ◽  
pp. 472-476
Author(s):  
Sheng Chen ◽  
Jian Zhang ◽  
Jian Feng An
Keyword(s):  
Mathematical Model ◽  
Draft Tube ◽  
Great Influence ◽  
Design Phase ◽  
Power Station ◽  
Pumped Storage ◽  
The Mathematical Model

Standpipe is a connection between surge chamber and tunnel, which can greatly reduce the quantities. This present study deals with how to take the influence of standpipe into consideration and what extent is the influence. The mathematical model of standpipe is established by introducing the method of characteristic. Then the model is applied in one pumped storage power station with long standpipe of 67m. Results show that the standpipe has great influence on whatever tank surge or pressure. And with the increasing standpipe length, the upsurge and minimum draft tube pressure present downtrend. The influence of standpipe in tailrace surge chamber should be considered in design phase. The achievements of the study can serve as a reference for similar projects.

scholarly journals Failure and protection of metal equipment in Pumped Storage Power Station

2020 ◽  
Vol 1635 ◽  
pp. 012042
Author(s):  
Yunpeng Gao ◽  
Xuechao Zhang ◽  
Lu Cheng ◽  
Wenxuan Fang ◽  
Feng Yun
Keyword(s):  
Power Station ◽  
Pumped Storage

scholarly journals Research on benefit evaluation method of pumped storage power station

2021 ◽  
Vol 692 (2) ◽  
pp. 022015
Author(s):  
Mingjie Xie ◽  
Chuanzheng Gong ◽  
Tongfa Chen ◽  
Ligang Pan ◽  
Qingran Wang ◽  
...  
Keyword(s):  
Evaluation Method ◽  
Power Station ◽  
Benefit Evaluation ◽  
Pumped Storage

scholarly journals Starting generator driving torque modeling in the studies of synchronous starting of synchronous machines

2002 ◽  
Vol 15 (3) ◽  
pp. 399-408
Author(s):  
Zoran Stajic ◽  
Dragan Petrovic ◽  
Dusan Arnautovic
Keyword(s):  
Mathematical Model ◽  
Linear Function ◽  
Polynomial Approximation ◽  
System Model ◽  
Synchronous Machines ◽  
Model Function ◽  
Detailed Model ◽  
Pumped Storage ◽  
Driving Torque ◽  
Time Linear

The paper deals with significance of the starting generator (SG) driving torque modeling in the studies of synchronous starting of synchronous machines (SSSM). The detailed mathematical model of SSSM in reversible pumped storage plant (RPSP) "Bajina Basta" is derived. Because it is very difficult to include the detailed model of the SG turbine in the system model, function of SG driving torque is modeled approximately. The most frequent case in SSSM studies is its approximation with a time linear function, until it reaches the value that should provide rotating of both machine rotors with synchronous velocities, which is also used in the paper Afterwards, three different cases are considered: constant, linear and polynomial approximation in terms of SG rotor velocity. Numerical results obtained by applying developed models to a particular case of synchronous starting are compared with the corresponding experimental results. In this way, it is shown that the application of the most frequently used SG driving torque modeling leads to the erroneous results. The advantages of the polynomial approximation suggested in the paper and its validity is demonstrated.

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