Open AccessExploration of a DC wind farm integrated by variable‐speed squirrel cage induction generator (SCIGs)
Author(s) -
Fu Jianfeng,
Song Guobing,
Gong Yu
Publication year - 2017
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2017.0579
Subject(s) - squirrel cage rotor , induction generator , generator (circuit theory) , cage , wind generator , electrical engineering , variable (mathematics) , control theory (sociology) , wind speed , computer science , automotive engineering , induction motor , wind power , engineering , physics , mathematics , structural engineering , meteorology , power (physics) , artificial intelligence , voltage , mathematical analysis , control (management) , quantum mechanics
Nowadays, the present wind farm topology still faces some economic and reliability problems, such as the long distance delivery cost, cable reactive current, too many power electronics devices, and so on. Taking into account the reliability and economy, this study presents a topology that high‐voltage variable‐speed squirrel cage wind turbines are directly integrated into the DC collecting line, then an equipped DC–DC converter at the terminal of wind farm boosts the DC voltage and feeds out the DC power to regional wind‐energy DC collection centre. After the topology of DC wind farm is determined, this study designs field‐oriented control and hysteresis modulation to achieve maximum power point tracking target. After that, collecting line fault characters are analysed and the reference for protection scheme is summarised. The simulation and verification here are based on Simulink platform.