1. IEA, International energy agency (2018) Renewables 2018.
https://www.iea.org
. Accessed 8 Oct 2018
2. Cheng M, Zhu Y (2014) The state of the art of wind energy conversion systems and technologies: a review. Energy Convers Manag 88:332–347
3. Guo Z, Chang L (2005) FEM study on permanent magnet synchronous generators for small wind turbines. In: Canadian conference on electrical and computer engineering, 2005. IEEE, pp 641–644
4. Hemeida AM, Farag WA, Mahgoub OA (2011) Modeling and control of direct driven PMSG for ultra large wind turbines. World Acad Sci 59:918–924
5. Bhende CN, Mishra S, Malla SG (2011) Permanent magnet synchronous generator-based standalone wind energy supply system. IEEE Trans Sustain Energy 2(4):361–373