Cause and Countermeasure Analysis on Wind Turbines' Trip-off from Grid

With the rapid increasing of wind turbines' connection into grid,the trip-off problem becomes more and more prominent.Large scale wind turbines' trip-off seriously threatens the safe and stable operation of the grid.Take a case for example,this paper analyses the causes and inner mechanism of wind turbines' trip-off from grid.Several key deficiencies existing in the safety requirements,technical performances,and operation management of wind power industry are revealed.Improvement methods and solutions are proposed.