O.J.  Abdalgbar, Bassam  Fadel Mohammed, E.  Solomin, 
    Electrical Hybrid Braking Technique in Wind Turbine Uncontrolled
Speed Overcoming,
    Journal of Engineering and Applied Sciences,
    Volume 14,Issue 22,
    2019,
    Pages 8425-8430,
    ISSN 1816-949x,
    jeasci.2019.8425.8430,
    (https://makhillpublications.co/view-article.php?doi=jeasci.2019.8425.8430)
    Abstract: Wind energy can operate big turbines and hence, helps to produce of electrical power. It is a green
energy and far less expensive than traditional sources of energy. Wind turbines are encountered with several
issues due to their deployment in harsh environments where they are highly susceptible to wind storm and
other environmental fluctuation. The windmills are designed to work under particular conditions and it need
to be isolated in otherwise. Braking system is vital to windmills life and hence, it need to be selected carefully.
This study discusses the technical norms of selecting the brake system that halt wind turbine during
uncontrolled conditions such as high speed of wind. Furthermore, the effects of speed on the power quality
is also discussed.
    Keywords: VAWT;PWM;EMF;Windmills;HAWT;clamping force