Title :
Subsynchronous oscillation of large DFIG-based wind farms integration through MMC-based HVDC
Author :
Jing Lv ; Peng Dong ; Gang Shi ; Xu Cai ; Hong Rao ; Jun Chen
Author_Institution :
State Key Lab. of Ocean Eng., Shanghai Jiao Tong Univ., Shanghai, China
Abstract :
With rapid development of offshore wind power and modular multilevel converter-based high-voltage DC transmission (MMC-HVDC), subsynchronous oscillation (SSO) phenomena might occur due to the interaction between wind farms and MMC-HVDC system. This paper focuses on the SSO of DFIG-based wind farms integration through MMC-HVDC system, and the mechanism of distribution and propagation of SSO in MMC-HVDC system will be revealed. The control scheme for SSO current suppression is given from the perspective of converter control in MMC-HVDC system. Both the theoretical analysis results and the proposed SSO current mitigation strategy are validated by the simulation results.
Keywords :
offshore installations; power system control; wind power plants; MMC-based HVDC; SSO current suppression; converter control; large DFIG-based wind farms integration; modular multilevel converter-based high-voltage DC transmission; offshore wind power; subsynchronous oscillation; HVDC transmission; Harmonic analysis; Oscillators; Power system harmonics; Resonant frequency; Wind farms; Doubly-fed induction generator (DFIG); high-voltage DC transmission (HVDC); mitigation strategy; modular multilevel converter (MMC); propagation mechanism; subsynchronous oscillation (SSO);
Conference_Titel :
Power System Technology (POWERCON), 2014 International Conference on
Conference_Location :
Chengdu
DOI :
10.1109/POWERCON.2014.6993945
