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

fYear

2014

fDate

20-22 Oct. 2014

Firstpage

2401

Lastpage

2408

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);

fLanguage

English

Publisher

ieee

Conference_Titel

Power System Technology (POWERCON), 2014 International Conference on

Conference_Location

Chengdu

Type

conf

DOI

10.1109/POWERCON.2014.6993945

Filename

6993945