“源-网-储”协调互动的风电并网消纳策略

Strategy of Wind Power Grid Connection and Consumption Based on Coordination and Interaction of “Source-Grid-Storage”

针对高比例风电弃风严重,风电消纳水平不高,未充分释放风电消纳空间等问题,结合直流调制运行特性,构建了含风电、火电、直流调制及储能系统的“源-网-储”协调互动模型,提出了“源-网-储”协调互动的风电并网消纳策略对风电进行消纳。在改进的IEEE-24节点系统上对所提协调互动模型和风电消纳策略进行仿真分析,仿真结果验证了方法的优越性和有效性。所提策略可充分释放电网风电消纳潜力,在减小弃风率、机组爬坡压力,提高电网调峰能力的同时,减小大规模风电并网对电网的冲击,对电网安全稳定运行具有重要意义和工程实用价值。

In view of the serious abandonment of high proportion of wind power,low wind power consumption level and insufficient release of wind power consumption space,combined with the operation characteristics of DC modulation,a "source-Grid-Storage" coordination and interaction model including wind power,thermal power,DC modulation and energy storage system was constructed,and the "source-Grid-Storage" coordination and interaction wind power grid connection consumption strategy was proposed to absorb wind power.The proposed coordinated and interactive model and strategy for wind power consumption were analyzed through simulation on the improved IEEE-24 node system.The simulation results verifed the superiority and effectiveness of this method.The proposed strategy can fully release the potential of wind power consumption,decrease proportion of wind power abandonment,relieve unit ramping pressure,and increase the grid peaking capacity while reducing impact of large-scale integration of wind power on the grid.It has great significance and practical value for the stable and safe operation of power grid.