考虑静态和暂态电压稳定的交直流混联系统综合无功规划方法研究

发布时间：2018-04-22 23:07

本文选题：交直流混联系统 + 电压稳定　；参考：《中国电机工程学报》2017年11期

【摘要】：随着直流输电的大规模建成和负荷需求的不断增加,我国电网形成了交直流混联系统,可能会对电网的静态和暂态电压稳定性带来一定的影响。无功规划可增强电网的安全稳定运行能力,现有研究多为仅考虑静态电压稳定性或暂态电压稳定性的无功规划,为此,该文提出了同时考虑静态和暂态电压稳定性的交直流混联系统综合无功规划方法。首先,该文定义了暂态电压稳定评估指标,并给出了综合无功规划的选址方法,然后建立了基于双层规划法的综合无功规划模型,旨在以最低的无功投资成本提高电网的静态和暂态电压稳定性。最后,通过对IEEE39扩展系统和实际电网算例的分析,验证了综合无功规划方法的有效性及实用性。
[Abstract]:With the large-scale construction of direct current transmission and the increasing demand for load, a hybrid AC / DC system has been formed in China's power network, which may have a certain impact on the static and transient voltage stability of the power network. Reactive power planning can enhance the safe and stable operation ability of power network. Most of the current researches are based on reactive power planning which only considers static voltage stability or transient voltage stability. In this paper, an integrated reactive power planning method for AC / DC hybrid systems considering both static and transient voltage stability is proposed. First of all, the index of transient voltage stability evaluation is defined, and the location method of integrated reactive power planning is given, and then a comprehensive reactive power planning model based on bilevel programming is established. The purpose of this paper is to improve the static and transient voltage stability of the power network with the lowest reactive power investment cost. Finally, the effectiveness and practicability of the integrated reactive power planning method are verified by the analysis of the IEEE39 extended system and the actual grid examples.
【作者单位】：电力传输与功率变换控制教育部重点实验室(上海交通大学);华东电网有限公司;中国电力科学研究院;
【基金】：国家重点基础研究发展计划项目(973项目)(2014CB23903) 国家自然科学基金项目(51261130473)~~
【分类号】：TM712;TM721.3

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