基于输电网结构优化的电网安全均匀调度

发布时间：2018-05-04 20:19

本文选题：输电网结构优化 + 最优线路开断　；参考：《电网技术》2017年09期

【摘要】：提高电网运行均匀度有助于提高系统的运行安全性。输电网结构优化作为一种调度运行领域的新技术手段,通过在电网运行过程中动态选择最优网络拓扑结构,可以改善电网各元件潮流分布的均匀度。在传统安全均匀调度模型的基础上,考虑输电线路运行状态的灵活调节,提出基于输电网结构优化的电网安全均匀调度模型。为保证最优拓扑的鲁棒性,在优化模型中计及了线路N-1安全约束,使所得的线路开断策略不会降低系统的N-1安全性。针对该大规模混合整数非线性规划问题,基于校验添加思想形成高效求解算法以提高优化模型的计算效率。IEEE 30节点系统和IEEE 118节点系统算例的仿真结果表明,文中提出的优化调度方法能够有效地提高电网运行均匀度,相比于传统调度方法能够在充分挖掘现有电网输电能力的同时实现电网潮流的智能化灵活控制。
[Abstract]:Improving the uniformity of power system operation is helpful to improve the security of the system. Transmission network structure optimization as a new technical means in the field of dispatching operation can improve the uniformity of power flow distribution of each component by dynamically selecting the optimal network topology in the process of power network operation. Based on the traditional security and uniform dispatching model and considering the flexible regulation of transmission line operation state, a security and uniform dispatching model based on transmission network structure optimization is proposed. In order to ensure the robustness of the optimal topology, the N-1 security constraints are taken into account in the optimization model, so that the line breaking strategy can not reduce the N-1 security of the system. For this large-scale mixed integer nonlinear programming problem, an efficient solution algorithm based on the idea of checkout addition is formed to improve the computational efficiency of the optimization model. The simulation results of IEEE 30-bus system and IEEE 118-bus system show that, The optimal dispatching method proposed in this paper can effectively improve the uniformity of power network operation. Compared with the traditional dispatching method, it can realize the intelligent and flexible control of power flow while fully mining the existing power transmission capacity.
【作者单位】：华北电力大学电气与电子工程学院;中国电力科学研究院;
【基金】：国家自然科学基金项目(51677071) 中央高校基本科研业务费专项资金资助项目(2015XS109)~~
【分类号】：TM73

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