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| Content Provider | IET Digital Library |
|---|---|
| Author | Varma, Pothuri Vishnu Vardhan Kumar, Boddeti Kalyan |
| Abstract | Fixed speed induction machine-based wind generators are widely used. Proper initialisation of the models representing fixed speed induction machine-based wind generators connected to grid is of primary concern for stability analysis. The initialisation of fixed speed induction generators (FSIG) has been performed using conventional power flow techniques, but there exists a reactive power mismatch which makes initialisation imprecise. Moreover, turbine characteristics along with control mechanisms are not properly included for initialising the dynamics for stability analysis. A unified Newton–Raphson (NR) method was proposed in literature to include turbine characteristics and control methods for accurate initialisation of FSIG. However, this method creates an extra node for every induction machine causing an increase in the size of the Jacobian and time of execution of power flow algorithm. A new unified-NR method, which does not need an extra node, for initialisation of grid-connected FSIG is proposed in the present work. The proposed unified NR method has been validated on 14-bus, 41-bus, 203-bus, and 1336-bus test systems. The results of the proposed new unified-NR method are compared with existing unified-NR method. The results clearly demonstrate that the proposed method initialisation is accurate with considerably less computational time as compared to existing unified-NR. |
| Starting Page | 1761 |
| Ending Page | 1769 |
| Page Count | 9 |
| ISSN | 17521416 |
| Volume Number | 13 |
| e-ISSN | 17521424 |
| Issue Number | Issue 10, Jul (2019) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-rpg/13/10 |
| Journal | IET Renewable Power Generation |
| Publisher Date | 2019-04-17 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Accurate Initialisation Asynchronous Generator Asynchronous Machine Control of Electric Power System Conventional Power Flow Technique Existing Unified-NR Method Fixed Speed Induction Generator Fixed Speed Induction Machine-based Wind Generator Fixed Speed Wind Generation System Initialisation Imprecise Interpolation And Function Approximation Load Flow Method Initialisation New Unified NR Power Flow Algorithm Newton-Raphson Method Numerical Analysis Optimisation Technique Power Generation Fault Power System Control Power System Stability Proper Initialisation Reactive Power Reactive Power Mismatch Stability Analysis Turbine Characteristic Unified Newton–Raphson Method Unified NR Method Wind Power Plant Wind Turbine |
| Content Type | Text |
| Resource Type | Article |
| Subject | Renewable Energy, Sustainability and the Environment |
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