含风电电力系统日前备用动态评估与优化Day-ahead Dynamic Estimation and Optimization of Reserve in Power Systems With Wind Power
张丹宁;徐箭;孙元章;廖思阳;柯德平;
摘要(Abstract):
随着风电并网规模的日益增加,风电功率的不确定性使得传统确定性备用评估方法已不再适用,系统需要预留合理有效的备用容量以确保系统安全稳定运行。对此,提出备用需求动态评估模型,该模型以风电功率预测和负荷预测的历史数据为基础,把无效向上/向下备用容量、切负荷量和弃风量期望作为评价指标,实现动态评估不同调度时段下受系统不确定性影响的备用需求。而后建立了基于备用需求动态评估的日前优化调度模型,通过4种期望之间的博弈使得系统既不过多预留备用造成浪费,也不因备用预留不足而导致切负荷和弃风。算例分析验证了所提模型的有效性,可为含风电接入系统的运行提供借鉴。
关键词(KeyWords): 风电;备用需求评估;无效备用容量期望;系统误差
基金项目(Foundation): 国家重点研发计划项目(2016YFB0900100);; 湖北省自然科学基金项目(2017CFB213);; 湖北省杰出青年基金项目(2018CFA080)~~
作者(Author): 张丹宁;徐箭;孙元章;廖思阳;柯德平;
Email:
DOI: 10.13335/j.1000-3673.pst.2018.2343
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