考虑核电运行安全及大规模消纳新能源电力的水火电力系统区间最优潮流研究

Guangxi Fangchenggang nuclear power plant is currently operating nuclear power plants have not only pumped storage power plant run with auxiliary power plant, with "Thirteen Five" period of new energy (wind and solar photovoltaic) large-scale access, Guangxi Power System the operating environment is worrisome. How to make good use of the wind - light - Hydropower natural complementary characteristics, dynamic coordinate the safe operation of nuclear power to reduce the impact of the new energy power uncertainty on power system operation, to abandon less wind, less light abandoned, abandoned less water, more power the goal of the current research focus of the industry.. Based on the interval optimization theory, evidence theory and cooperative game theory, proposed the establishment of nuclear - wind - light - water - thermal power running alliances to achieve all kinds of dynamic power coordination and mutually beneficial win-win new ideas; discuss nuclear power and wind power - photovoltaic - Hydropower dynamic optimal complementary mechanisms of coordination and sharing of interests, factors and solutions. Furthermore, proposed to meet the power constraint, dynamic optimal power flow model and algorithms to maximize the benefits of running the league to achieve quantitative analysis. In order to achieve as much as possible new energy consumptive electric power, nuclear power and ensure the safe operation of the power grid, it has important theoretical and practical significance.

广西防城港核电厂是目前国内运行的核电厂中唯一没有抽水蓄能电厂与之辅助运行的电厂，加上“十三五”期间新能源（风电和太阳能光伏）的大规模接入，广西电力系统的运行环境堪忧。如何利用好风-光-水电天然的互补特性，动态协调好核电的安全运行，减少新能源电力不确定性对电力系统运行的影响，达到少弃风、少弃光、少弃水、多发电的目标，是当前业界的研究热点。 . 基于最新的区间优化理论、证据理论和合作博弈理论，提出了建立核-风-光-水-火电运行联盟，实现各类电力动态协调，互利多赢的新构想；探讨核电与风电-光电-水电动态互补最优协调和利益均分的机制、影响因素和解决方法。进而，提出满足电网约束，运行联盟利益最大化的动态最优潮流模型与算法，实现定量分析。以期实现尽可能多的消纳新能源电力，保证核电及电网运行安全，具有重要的理论价值和现实意义。

摘要：根据基于Wasserstein距离的数据驱动鲁棒优化数学理论，建立了含风光-水-火-核等多种电源的机组组合-OPF模型。在机组组合模型中考虑了基于解耦线性潮流方程的网络安全约束提高决策的可靠性。针对风光出力不确定性，模型利用历史数据形成经验概率分布，再根据Wasserstein距离形成风光出力的模糊不确定集合。在假定风光出力服从模糊不确定集合中极端概率分布的条件下进行决策，从而保证安全性。所拥有的数据越多，模糊不确定集合越小，则模型的经济性越好。因此，所提模型能够兼顾安全性和经济性。. 根据本文所提的方法，对加入新能源的广西主电网703节点实际电力系统进行仿真测试。并比较分析所提模型与传统鲁棒优化模型和随机优化模型的安全性和经济性。此外，本文还验证了非独立同分布采样对模型结果的影响。仿真结果表明，所提模型能够更好的平衡安全性和经济性，并且能够应对非独立同分布采样对模型的影响，具有重要的理论和实际应用价值。