Open AccessCharacteristics of sub‐synchronous interaction among D‐PMSG‐based wind turbines
Author(s) -
Liu Yuming,
Wang Long,
Sun Haishun,
Huang Biyue
Publication year - 2019
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2018.8572
Subject(s) - wind power , grid , turbine , environmental science , control theory (sociology) , computer science , control (management) , engineering , mathematics , aerospace engineering , electrical engineering , artificial intelligence , geometry
With the development of wind energy conversion system (WECS), sub‐synchronous oscillations (SSO) phenomena have occurred in direct‐drive permanent magnetic synchronous generators (D‐PMSGs)‐based wind farms. There are several studies on the analysis of the SSO worldwide. However few researchers are concern about the interaction among D‐PMSGs. Considering the interaction among D‐PMSGs, especially in the weak grid condition, some researches are conducted in this study. The model of D‐PMSG is shown firstly. Then the simulations are carried out to research the characteristics of interaction among D‐PMSGs. Control parameters of grid side converter and wind turbine (WT) operating conditions are taken into consideration. At last, a proper mitigation method is introduced. Meanwhile, the impact of interaction among WTs on the effect of mitigation method is studied. The simulation result shows that there are distinct interactions among D‐PMSGs. The interactions among D‐PMSGs need to be considered when coordinating the SSO mitigation control among D‐PMSGs.