Design of Control Strategies of Energy Storage for Peak Shaving to Restrain Wind Power’s Influence on Power Grid

doi:10.11930/j.issn.1004-9649.2014.7.91.4

Abstract

Abstract: The essential problem of peak shaving of large-scale wind power is uncontrollability of wind power. Because of the ability of charging and discharging, battery energy storage systems are considered as an effective mean to control wind power output and improve the wind power acceptance capability of a grid. Aiming at insufficient peak shaving capacity of power systems caused by anti-peak shaving character istics of wind power output, the influence mechanism of large-scale wind power integration on generation schedules for traditional generators in load valley period and the regulatory mechanism of the participation of energy storage systems in peak shaving were analyzed. Control strategies of the energy storage system that includes dead-zone control were designed in case of low load. Example result shows that control strategies of energy storage system mentioned above is effective to renduce the start-up times of thermal power units when the large-scale wind power is integrated to the grid and the economic benefit of power grid operation is greatly improved.

Key words: wind power, energy storage system, grid power peak shaving, conventional generator, control strategy, action dead-zone

CLC Number:

TM715

LI Jun-hui, ZHU Xing-xu, YAN Gan-gui, MU Gang, GE Wei-chun. Design of Control Strategies of Energy Storage for Peak Shaving to Restrain Wind Power’s Influence on Power Grid[J]. Electric Power, 2014, 47(7): 91-95.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.2014.7.91.4

https://www.electricpower.com.cn/EN/Y2014/V47/I7/91

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