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| Content Provider | IET Digital Library |
|---|---|
| Author | Wang, Lei Han, Qingshuang Chen, Diyi Wu, Changzhi Wang, Xiangyu |
| Abstract | For the sake of studying the stability of the pumped storage power station, the authors focused on the mathematical modelling of the pump-turbine governing system (PTGS) at pump mode. First of all, six transfer coefficients were introduced into the model of the pump-turbine. Furthermore, utilising the internal characteristics formulas, they obtained six analytical expressions of the transfer coefficients at pump mode. Considering the elastic water-hammer model of the penstock with hydraulic friction and the second-order model of the generator, a non-linear model of the PTGS was proposed. On the basis of a real case, they obtained the curve of bifurcation points of the system by using the stability theorem, and verified the correctness of the theoretical analysis results from numerical experiments. Moreover, the stable domains of the proportional–integral–derivative parameters k p and k d were identified and the non-linear dynamic behaviours of the governing system were studied. Finally, these methods and analytic results could help them improve the safety operation and performance of the pumped storage power station. |
| Starting Page | 827 |
| Ending Page | 836 |
| Page Count | 10 |
| ISSN | 17521416 |
| Volume Number | 11 |
| e-ISSN | 17521424 |
| Issue Number | Issue 6, May (2017) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-rpg/11/6 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-rpg.2016.0707 |
| Journal | IET Renewable Power Generation |
| Publisher Date | 2017-02-27 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | A.C. Machine Bifurcation Bifurcation Points Control of Electric Power System Elastic Water-hammer Model Hydraulic Friction Hydraulic Turbines Mathematical Model Nonlinear Control System Nonlinear Dynamic Behaviour Nonlinear Dynamical System Nonlinear Modelling Penstock Power Generation Control Power System Control Power System Stability Proportional-integral-derivative Parameter PTGS Pump Mode Pump-turbine Governing System Pumped Storage Power Station Pumped Storage Stations And Plant Pumped-storage Power Stations Safety Operation Second-order Model Stability Analysis Stability in Control Theory Three-term Control Transfer Coefficient TurboGenerator |
| Content Type | Text |
| Resource Type | Article |
| Subject | Renewable Energy, Sustainability and the Environment |
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