Anti-peak-regulation characteristic is one of the most serious constraints on wind power integration

whose essence is the lack of down-regulate space in power grid. In this paper

for enhancing the ratio of utilized wind resource

battery energy storage system（BESS） was adopted to improve the situation of negative reserve deficiency. Therefore

the bottleneck of peak regulation can be relaxed by peak load shifting. Meanwhile

multi-link benefits brought by BESS were taken into consideration

such as the profits derived from extra accommodation of wind power

electricity price difference during peak and valley periods

substitution for cycling units and so on. According to the temporal characteristics of wind power

large numbers of wind power scenarios were generated

which were further processed by a scenario reduction technique. Based on the reduced set of wind power scenarios

the benefit terms and the costs of BESS were computed to compose the comprehensive net income. Then

an optimal configuration method for BESS was proposed by maximizing this net income. Finally

by using the real data of an area in Northwest China

a study case was designed to verify the feasibility of this proposed configuration method.