Modeling and Control of Type–2 Wind Turbines for Sub–Synchronous Resonance Damping Fernando Mancilla–David a , Jos´ e Luis Dom´ ınguez–Garc´ ıa b , Mikel De Prada b , Oriol Gomis–Bellmunt b,c , Mohit Singh d , Eduard Muljadi d a Department of Electrical Engineering, University of Colorado Denver, Denver, CO 80217, USA b IREC Catalonia Institute for Energy Research, Jardins de les Dones de Negre 1, 2a. 08930 Sant Adri` a de Bes` os, Barcelona (Spain) c Centre d’Innovaci´ o Tecnol` ogica en Convertidors Est` atics i Accionaments (CITCEA-UPC), Universitat Polit` ecnica de Catalunya UPC, Av. Diagonal, 647, Pl. 2. 08028 Barcelona, Spain d National Renewable Energy Laboratory (NREL), Golden, CO 80401, USA Abstract The rapid increase of wind power penetration into power systems around the world has led transmission system operators to enforce stringent grid codes requiring novel functionalities from renewable energy–based power genera- tion. For this reason, there exists a need to asses whether wind turbines (WTs) will comply with such functionalities to ensure power system stabil- ity. This paper demonstrates that Type–2 WTs may induce sub–synchronous resonance (SSR) events when connected to a series–compensated transmis- sion line, and with proper control, they may also suppress such events. The paper presents a complete dynamic model tailored to study, via eigenanalysis, SSR events in the presence of Type–2 WTs, and a systematic procedure to design a power system stabilizer using only local and measurable signals. Re- Email address: fernando.mancilla-david@ucdenver.edu Corresponding author (Fernando Mancilla–David) Preprint submitted to Energy Conversion & Management March 12, 2015 © 2015. This manuscript version is made available under the Elsevier user license http://www.elsevier.com/open-access/userlicense/1.0/