For suppressing fluctuation of wind power and meeting the requirement of security and friendliness

the control strategy in this paper uses firstly wavelet packet decomposition algorithm to decompose the original active power from wind power plant into power curves as per different frequencies. The fuzzy control method of negative feedback by using hierarchical mode is improved. Hierarchical fuzzy control is sued to keep supercapacitors

batteries and hydrogen production systems of hydrogen-fired fuel cells interconnected and complementary. Respective feature of different energy storage device is fully developed

the energy storage capacity is expanded and the result of suppressing of wind power fluctuation is enhanced.