高比例可再生能源接入下含自愈性能的分布式配电网重构策略研究

Research on Reconfiguration Strategy of Distributed Distribution Network With Self-Healing Performance Under High-Proportion Renewable Energy Access

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中文摘要：[目的]随着可再生能源电网占比逐年增加,电网的波动性和不确定性显著提升,给配电网的安全运行带来挑战.针对高比例新能源电网分布式配网重构问题,提出一种在线滚动优化框架方法.[方法]通过分布式共识协议获取网络拓扑和节点运行信息,在N-1和N-2线路故障状态下自动重构,实现配电网无额外外部触发信号情况下自动恢复正常运行,保证电网经济运行.同时采用滚动优化方法处理高比例可再生能源所导致的电网波动问题,并利用生成对抗网络(generative adversarial network,GAN)技术生成新数据,结合历史数据实现电网运行数据高精度预测.[结果]所提方法在正常状态、单点故障和两点故障3种情况下,均能实现电网的自动经济运行优化和自愈修复.[结论]与鲁棒规划和随机规划等方法相比,所提出方法可提升电网预测精度.

外文摘要：[Objectives]As the proportion of renewable energy in power grids increases year by year,the volatility and uncertainty of the grid are significantly heightened,posing challenges to the safe operation of distribution networks.To address the issue of distributed network reconfiguration in high-proportion renewable energy grids,this paper proposed an online rolling optimization framework.[Methods]The framework utilized a distributed consensus protocol to obtain network topology and node operation information.It can enable automatic reconfiguration in the event of N-1 and N-2 line failures,allowing the distribution network to automatically restore normal operation without the need for additional external triggering signals,thus ensuring economic operation of the grid.Additionally,a rolling optimization method was employed to handle grid fluctuations caused by the high proportion of renewable energy,and generative adversarial network(GAN)technology was used to generate new data,which combined with historical data.It can help to achieve high-precision forecasting of grid operation data.[Results]The proposed method can achieve automatic economic optimization and self-healing in normal,single-point failure,and two-point failure scenarios.[Conclusions]This method provides an effective solution for ensuring the safe operation of distributed networks in high-proportion renewable energy grids.

外文关键词：

renewable energydistributed generatordistribution network reconstructiondistribution network self-healinghigh proportion of new energydistributed optimizationlook-ahead optimization

作者：

吴任博、黄奕俊

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作者单位：

广东电网有限责任公司广州供电局,广东省广州市 510000

山东大学电气工程学院,山东省济南市 250061

关键词：

可再生能源分布式电源配电网重构配电网自愈高比例新能源分布式优化滚动优化

基金：

国家重点研发计划项目南方电网配网自动化技术改进项目

项目编号：

2020YFC1512700080016GS62210001

出版年：

2024

DOI：

10.12096/j.2096-4528.pgt.23112

发电技术

华电电力科学研究院

发电技术

CSTPCD

影响因子：0.388

ISSN：2096-4528

年,卷(期)：2024.45(5)

参考文献量14