大规模风电并网的电力系统运行灵活性评估
发布时间：2019-01-27 20:14
【摘要】：电力系统具有足够的灵活性对于接纳风电等可再生能源至关重要。为实现包含高比例可再生能源的未来清洁电力系统,亟需建立一套充分考虑风电波动性和随机性的电力系统运行灵活性定量评价指标体系。基于电力系统灵活性的定义和原理,提出了一套考虑大规模风电接入的电力系统灵活性定量评估指标体系,并基于蒙特卡洛模拟法和经济调度模型,提出了实用化的指标计算方法。该模型能够考虑风电及负荷的不确定性,并计入了风功率预测误差的时间相关性,从而反映了负荷不确定性和风功率预测不确定性对灵活性指标的不同影响原理。采用我国西北某电网实际风电场数据对所提算法进行了仿真分析,证明了风电不确定性和负荷不确定性对灵活性的影响存在本质区别,并定量研究了不同因素对灵活性指标的影响。
[Abstract]:Sufficient flexibility in power systems is essential for the acceptance of renewable energy sources such as wind power. In order to realize the future clean power system which includes high proportion of renewable energy, it is urgent to establish a set of quantitative evaluation index system of power system operation flexibility, which fully considers the fluctuation and randomness of wind power. Based on the definition and principle of power system flexibility, a set of quantitative evaluation index system of power system flexibility considering large-scale wind power access is proposed, which is based on Monte Carlo simulation and economic dispatch model. A practical index calculation method is proposed. The model can take into account the uncertainty of wind power and load, and take into account the time correlation of wind power prediction error, which reflects the different influence principle of load uncertainty and wind power prediction uncertainty on flexibility index. Based on the actual wind farm data of a power grid in Northwest China, the proposed algorithm is simulated and analyzed. It is proved that the influence of wind power uncertainty and load uncertainty on flexibility is essentially different. The influence of different factors on flexibility index was studied quantitatively.
【作者单位】： 清华大学电机工程与应用电子技术系;中国电力科学研究院;
【基金】：国家863高技术基金项目(2011AA05A103)~~
【分类号】：TM732;TM614
[Abstract]:Sufficient flexibility in power systems is essential for the acceptance of renewable energy sources such as wind power. In order to realize the future clean power system which includes high proportion of renewable energy, it is urgent to establish a set of quantitative evaluation index system of power system operation flexibility, which fully considers the fluctuation and randomness of wind power. Based on the definition and principle of power system flexibility, a set of quantitative evaluation index system of power system flexibility considering large-scale wind power access is proposed, which is based on Monte Carlo simulation and economic dispatch model. A practical index calculation method is proposed. The model can take into account the uncertainty of wind power and load, and take into account the time correlation of wind power prediction error, which reflects the different influence principle of load uncertainty and wind power prediction uncertainty on flexibility index. Based on the actual wind farm data of a power grid in Northwest China, the proposed algorithm is simulated and analyzed. It is proved that the influence of wind power uncertainty and load uncertainty on flexibility is essentially different. The influence of different factors on flexibility index was studied quantitatively.
【作者单位】： 清华大学电机工程与应用电子技术系;中国电力科学研究院;
【基金】：国家863高技术基金项目(2011AA05A103)~~
【分类号】：TM732;TM614
【参考文献】
相关期刊论文 前4条
1 肖创英;汪宁渤;陟晶;丁坤;;甘肃酒泉风电出力特性分析[J];电力系统自动化;2010年17期
2 王彩霞;鲁宗相;;风电功率预测信息在日前机组组合中的应用[J];电力系统自动化;2011年07期
3 张海峰;高峰;吴江;刘坤;;含风电的电力系统动态经济调度模型[J];电网技术;2013年05期
4 肖定W，
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