Abstract
A nonlinear backstepping control scheme is proposed in this work for the voltage source converter (VSC) used with the static synchronous compensator (STATCOM) in a doubly fed induction generator (DFIG)-based series compensated wind farm in order to mitigate sub-synchronous resonance (SSR) and improve the transient stability. The proposed scheme will regulate the reactive power requirement either by absorbing or supplying through the STATCOM for alleviating the SSR. At the same time, the tracking of other properties representing the dynamics of the STATCOM will be ensured through the proposed controller. The control inputs for the proposed nonlinear STATCOM controller are derived in a way that these satisfy the Lyapunov stability theory and ensure the appropriate tracking of all dynamics associated with the STATCOM. Simulation studies are conducted to justify the theoretical aspects of the proposed control scheme by developing the series compensated and grid-connected DFIG-based wind farm with the STACOM using MATLAB/SIMULINK platform. The high compensation level is considered for evaluating the performance under the worst case operating condition and the performance is compared with a traditional but finely tuned proportional integral (PI) controller in terms of eliminating fluctuations due to the SSR in the output responses of the DFIG-based wind farm.
Original language | English |
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Title of host publication | 9th IEEE International Conference on Power Electronics, Drives and Energy Systems |
Subtitle of host publication | PEDES 2020 |
Place of Publication | United States |
Publisher | Institute of Electrical and Electronics Engineers |
Pages | 1-6 |
Number of pages | 6 |
ISBN (Electronic) | 978-1-7281-5672-9 |
ISBN (Print) | 978-1-7281-5673-6 |
DOIs | |
Publication status | Published - Dec 2020 |
Externally published | Yes |
Event | 9th IEEE International Conference on Power Electronics, Drives and Energy Systems - Malaviya National Institute of Technology, Jaipur, India Duration: 16 Dec 2020 → 19 Dec 2020 |
Conference
Conference | 9th IEEE International Conference on Power Electronics, Drives and Energy Systems |
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Abbreviated title | PEDES 2020 |
Country/Territory | India |
City | Jaipur |
Period | 16/12/20 → 19/12/20 |
Keywords
- Backstepping controller
- DFIG-based wind farm
- SSR
- Transient stability
- Voltage source converter