Subsynchronous Interaction Between Direct-Drive PMSG Based Wind Farms and Weak AC Networks
Tsinghua University · State Grid Corporation of China (China)
Abstract
Recently, sustained power oscillation at subsynchronous frequency was captured in direct-drive permanent magnetic synchronous generator (PMSG) based wind farms in Xinjiang Uygur Autonomous Region, China. This new type of subsynchronous interaction (SSI) detected in practical systems has never been reported and analyzed before. Therefore, its mechanism and characteristics are not yet clearly clarified. In this paper, a simplified but representative system model with multiple PMSGs interfaced with AC networks is established first based on the actual system and the PMSG model provided by the manufacturer. Then, small-signal eigenanalysis, time-domain simulation, and impedance model analysis are carried out to…
Citation impact
- FWCI
- 36.52
- Percentile
- 100%
- References
- 41
Authors
7Topics & keywords
- Control theory (sociology)
- Engineering
- Electric power system
- Oscillation (cell signaling)
- Electrical impedance
- Time domain
- Permanent magnet synchronous generator
- Wind power
- Affordable and clean energy