5概述风电并网的特点及问题ABSTRACT: Since the 1980 s, wind power grid type with its unique advantages of energy, environmental protection and scale of benefit, get rapid development. Due to the wind farm is a kind of depends on natural energy of the dispersion of a source of power, and now is used mostly constant speed constant frequency induction wind power systems, the parallel operation reduces the grid stability and power quality. With the constant expansion of wind power, wind power characteri