Study On The Control Strategies Of Energy Storage System To Improve The Scheduling Scale Of Wind Power

Due to the fluctuation and low prediction accuracy of wind power，integratedlarge-scale wind power will bring a lot of adverse effects to power system, and whichwill restricts the integrated scale of it. The energy storage system has the time-spaceshift capability of power and energy, which is able to restrain the fluctuation of windpower effectively and can improve the accuracy of wind power. Thus, it is consideredto be an important means to improve the wind power integration ability of the powersystem. However, under the current level of technology, the cost of energy storagesystem is still expensive. Thus, how to select the control objectives, design the controlstrategy and evaluate the economic feasibility of it are important issues in applicationarea of large-scale energy storage.This paper focus on the problem of wind curtailed of wind power dispatching，which is caused by overestimating the uncertainty risk of wind power. A methodbased on large-scale energy storage to improve the determinacy of wind power wasproposed, which can avoid the valuable space be reserved excessively and canimprove the integrated scale of wind power. A rolling scheduling dispatching methodwhich is based on the interval prediction of wind power was researched; the operationcontrol strategy of large-scale energy storage was researched to deal with theuncertainty risks of dispatching; the economic assessment model of the energystorage system was built, and different probability interval forecast scenarios wereassessment. The Studies has practical significance, and can provide a theoreticalreference for improve the integrated scale of wind power by energy storage system.