A collaborative communication-less frequency support control for the DRU-HVDC integrated offshore wind farm
- Resource Type
- Conference
- Authors
- Feng, Wenxin; Yu, Haotian; Cai, Xu; Yang, Renxin; Ren, Xinfang; Dong, Yanle; Peng, Guangqiang; Ma, Xianghui
- Source
- 2023 IEEE Sustainable Power and Energy Conference (iSPEC) Sustainable Power and Energy Conference (iSPEC), 2023 IEEE. :1-5 Nov, 2023
- Subject
- Power, Energy and Industry Applications
Couplings
HVDC transmission
Collaboration
Wind farms
Frequency measurement
Wind turbines
Frequency control
DRU-HVDC
frequency support control
frequency coupling characteristics
offshore wind farm
- Language
- ISSN
- 2837-522X
The utilization of diode rectifier units (DRU) in high voltage direct current (HVDC) transmission systems holds significant promise as a cost-effective solution for the integration of large-scale offshore wind farms (OWFs). A collaborative communication-less frequency support (FS) control strategy has been proposed in this paper for OWFs using DRU-HVDC transmission. The onshore-grid frequency change is introduced to the HVDC in the form of a small sinusoidal disturbance and is accurately reflected in offshore grid by the frequency coupling between the AC and the DC side of the DRU. On this basis, the wind turbines (WTs) could realize the FS by measuring the frequency variation of the small disturbance current in the offshore grid. Finally, the results of PSCAD/EMTDC simulation are presented to validate the efficacy of the proposed FS strategy.