| 引用本文: | 杨佳俊,雷宇,龙淼,等.考虑风电和负荷不确定性的机组组合研究[J].电力系统保护与控制,2014,42(3):63-70.[点击复制] |
| YANG Jia-jun,LEI Yu,LONG Miao,et al.Study of unit commitment considering the uncertainty of wind farm and load[J].Power System Protection and Control,2014,42(3):63-70[点击复制] |
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| 摘要: |
| 为解决含风电场的电力系统中风电与负荷的不确定性对系统的安全经济运行产生的影响，获得既经济又有较高可靠性的解，提出通过配置旋转备用容量来应付系统中的不确定性因素，主要是风电场出力预测的影响。采用成本效益分析的方法，根据备用的效益与成本在目标函数中的相互牵制，自动为系统配置合适的备用。并将构建模型中部分含有{0,1}变量乘积形式的非线性约束转化为由一组线性约束条件来表达，转化后的数学模型为标准的二次混合整数规划问题，建立的模型直接能够用传统数学优化模型求解，因此计算速度较许多机会约束规划方法快，在一定程度上能够满足实际应用。算例分析表明所提模型的有效性和实用性。 |
| 关键词: 旋转备用 不确定性 成本效益分析 非线性约束 机会约束规划 |
| DOI：10.7667/j.issn.1674-3415.2014.03.010 |
| 投稿时间：2013-05-21修订日期：2013-09-03 |
| 基金项目: |
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| Study of unit commitment considering the uncertainty of wind farm and load |
| YANG Jia-jun,LEI Yu,LONG Miao,XU Jian-zheng,CHEN Hong,MOU Chun-xiao |
| (School of Electrical Engineering, Shandong University, Jinan 250061, China;School of Electrical Engineering, Shandong University, Jinan 250061, China;Shandong Province Military Area, Jinan 250099, China;Shandong Electric Power Transmission and Transformation Project Company, Jinan 250022, China) |
| Abstract: |
| In order to ensure the safe and economic operation of system which is impacted by the uncertainty of wind power and load, and to acquire economic and reliable solutions, this paper proposes to cope with the uncertainty factors, especially the effect of wind power plant output prediction, through configuring spinning reserve capacity. This paper adopts the method of cost-benefit analysis, based on the mutual restraint of the spare benefit and cost in the objective function, suitable reserve is automatically configured for the system. Part of nonlinear constraints in the model that contains {0, 1} variable product form are transformed to a group of linear constraints. The transformed mathematical model is a standard secondary mixed integer programming, and it can be solved directly by traditional mathematical optimization model, so computing speed is faster than many chance constraint programming methods. To some extent, it can satisfy the practical application. The example results show its effectiveness and practicability. |
| Key words: spinning reserve uncertainty cost-benefit analysis nonlinear constraints chance constraint programming |
