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考虑吸纳风电能力的电网调度模型研究

         

摘要

One of the characteristics of smart grid is to fully absorb renewable energy. Wind power generation randomness is strong, to the power grid brings many uncertainties. In order to maximize the absorb wind energy, taking into account the safety of power grid, must abandon the traditional scheduling plan based on theN−1 or the consideration of the formulation methods, but should be in and transmission component failure probability based on the construction of power grid scheduling model and the model of the pursuit of power system static security and wind power capacity to absorb collaborative optimization. Examples in different wind conditions as the background, the maximum allowable wind power, wind surfing, wind stroke case calculation. The research shows that, through scientific scheduling optimization, the wind power can play a supporting role to the grid, while avoiding the impact of wind power on the grid.%智能电网的特征之一是充分吸纳可再生能源。风力发电随机性强,给电网带来诸多不确定因素。为了最大程度吸纳风电能量,同时兼顾电网安全性,必须舍弃传统的基于N−0或N−1考量的调度计划制定方法,而应在计及输电元件故障概率的基础上构建含风电的电网调度模型。该模型追求电网静态安全与风电吸纳能力的协同优化。算例以不同风况为背景,计算了小风、中风、大风情形下的风电最大容许上网功率。研究表明,通过科学的调度优化,能够让风电起到对电网的支撑作用,同时避免风电随机性对电网造成的影响。

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