Open AccessAnalysis of SSO in DFIG grid with series compensation
Author(s) -
Shujie Wang,
Jinyu Wen,
Yukun Niu,
Limin Ma
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1920/1/012104
Subject(s) - doubly fed electric machine , compensation (psychology) , control theory (sociology) , oscillation (cell signaling) , electric power system , controller (irrigation) , generator (circuit theory) , induction generator , transmission system , grid , control engineering , engineering , series (stratigraphy) , wind power , computer science , transmission (telecommunications) , power (physics) , ac power , voltage , control (management) , electrical engineering , physics , mathematics , artificial intelligence , psychoanalysis , biology , genetics , psychology , paleontology , geometry , quantum mechanics , agronomy
Doubly fed induction generator (DFIG) has become the most widely used type of wind power generation due to its superior technical performance. Series compensation technology is widely used in large-scale and long-distance wind power transmission system because of its high cost performance and significant improvement of transmission capacity. However, it may cause subsynchronous oscillation (SSO). This paper first introduces the definition and harm of subsynchronous oscillation, and then analyzes the advantages and disadvantages of series compensation technology, as well as the mechanism and suppression measures of subsynchronous oscillation of DFIG connected system through series compensation. Through modeling and simulation analysis, the suppression effect of additional subsynchronous damping controller (SSDC) on subsynchronous oscillation of DFIG control system is verified.