考虑多形态间歇性电源集中接入的输电网随机双层规划方法

发布时间：2018-04-22 07:24

本文选题：电网规划 + 点估计法　；参考：《电网技术》2016年10期

【摘要】：全球能源互联网战略背景下的大电网规划和建设面临着多形态间歇性可再生能源发电大规模集中并网所带来的机遇与挑战。在输电网全寿命周期成本分析建模的基础上,以输电网服役期限内的全寿命周期成本的经济性最优为目标,建立了考虑多形态间歇性电源集中接入的输电网随机双层规划模型:上层进行充裕性规划决策方案以生成输电网规划方案;下层基于2m+1点估计法,考虑各种不确定性因素的影响,对上层规划方案进行静态安全性评估。为了确保双层规划模型的求解效率,上下层模型均采用等效的析取不等式建立混合整数线性规划模型,并将下层模型的库恩塔克最优性条件线性化处理成上层模型的约束条件,从而建立了一个与原双层模型等效且为单层模型的含均衡约束的数学规划模型。直接调用成熟的商用线性规划求解器进行模型的求解,以实现规划方案的全局最优性。算例仿真验证了所提模型和方法的合理性、有效性及实用性。
[Abstract]:Under the background of the global energy Internet strategy, the planning and construction of large power grid is facing the opportunities and challenges brought by the large-scale centralized grid connection of renewable energy generation with multiple forms. On the basis of the analysis and modeling of the whole life cycle cost of the transmission network, the economic optimization of the whole life cycle cost of the transmission network during the service life is taken as the goal. In this paper, a stochastic bilevel programming model of transmission network considering multi-form intermittent power supply centralized access is established: the upper layer makes a sufficient planning decision scheme to generate the transmission network planning scheme, the lower layer is based on 2m 1 point estimation method. Considering the influence of various uncertain factors, the static security evaluation of the upper planning scheme is carried out. In order to ensure the efficiency of solving the bilevel programming model, the upper and lower layer models adopt the equivalent disjunctive inequality to establish the mixed integer linear programming model, and linearize the Kuentak optimality condition of the lower level model into the constraint condition of the upper layer model. Thus, a mathematical programming model with equilibrium constraints is established, which is equivalent to the original bilayer model and is a single-layer model. The mature commercial linear programming solver is directly called to solve the model to realize the global optimality of the planning scheme. The simulation results show that the proposed model and method are reasonable, effective and practical.
【作者单位】：新能源电力系统国家重点实验室(华北电力大学);国网浙江省电力公司经济技术研究院;国网浙江省电力公司舟山供电公司;
【基金】：国家863高技术基金项目(2012AA050208) 高等学校学科创新引智计划项目(B08013)~~
【分类号】：TM715

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