Abstract
A model of the single-machine infinite-bus system containing STATCOM on the electromechanical time scale is deduced to understand the mechanism of STATCOM affecting the grid power oscillation. The dynamic physical mechanism of STATCOM affecting the transient performance of synchronous generator in the power oscillation mitigation mode is discussed by adopting the method of electrical torque analysis. The results show that when the power angle is used as feedback signal, P and D controllers affect the synchronizing and the damping characteristics of the synchronous generator, respectively; and when the rotor speed is utilized as the feedback signal, P, I and D controllers affect the damping, synchronizing and inertia characteristics, respectively. In addition, the principles of different control strategies that influence the equivalent inertia, the synchronizing and the damping coefficients of the power grid are explained. Moreover, the important factors that influence the performance of power oscillation mitigation are analyzed, providing a theoretical foundation for the design of STATCOM control strategies. Simulation results show the correctness of the conclusions derived in this paper.
| Original language | English |
|---|---|
| Pages (from-to) | 112-120 |
| Number of pages | 9 |
| Journal | Hsi-An Chiao Tung Ta Hsueh/Journal of Xi'an Jiaotong University |
| Volume | 51 |
| Issue number | 12 |
| DOIs | |
| State | Published - 10 Dec 2017 |
| Externally published | Yes |
Keywords
- Equivalent damping coefficient
- Equivalent synchronous coefficient
- Power oscillation
- Static synchronous compensator
- Virtual inertia
Fingerprint
Dive into the research topics of 'Analysis on Mechanism of Power Oscillation Mitigation by STATCOM'. Together they form a unique fingerprint.Cite this
- APA
- Author
- BIBTEX
- Harvard
- Standard
- RIS
- Vancouver