文章摘要
王洪坤,王守相,潘志新,等.含高渗透分布式电源配电网灵活性提升优化调度方法[J].电力系统自动化,2018,42(15):86-93. DOI: 10.7500/AEPS20171225003.
WANG Hongkun,WANG Shouxiang,PAN Zhixin, et al.Optimized Dispatching Method for Flexibility Improvement of Distribution Network with High-penetration Distributed Generation[J].Automation of Electric Power Systems,2018,42(15):86-93. DOI: 10.7500/AEPS20171225003.
含高渗透分布式电源配电网灵活性提升优化调度方法
Optimized Dispatching Method for Flexibility Improvement of Distribution Network with High-penetration Distributed Generation
DOI:10.7500/AEPS20171225003
关键词: 分布式电源  灵活性评价指标  可中断负荷  优化调度
KeyWords: distributed generation(DG)  flexibility evaluation index  interruptible load  optimized dispatching
上网日期:2018-07-02
基金项目:
作者单位E-mail
王洪坤 智能电网教育部重点实验室(天津大学), 天津市 300072
石河子大学机械电气工程学院, 新疆维吾尔自治区石河子市 832000 
 
王守相 智能电网教育部重点实验室(天津大学), 天津市 300072 sxwang@tju.edu.cn 
潘志新 国网江苏省电力有限公司, 江苏省南京市 210024  
王建明 国网江苏省电力有限公司, 江苏省南京市 210024  
摘要:
      高渗透率分布式电源接入配电网,加剧了配电网的波动性和不确定性,为提高配电网应对不确定扰动的能力,针对含高渗透率分布式电源配电网的灵活性提升开展研究。首先,分析了含高渗透率分布式电源配电网的灵活性需求。其次,从配电网容量灵活充裕度和分布式电源接纳的灵活适应性两个方面,提出了线路容量裕度、变压器向上容量裕度、变压器向下容量裕度、净负荷波动率、净负荷最大允许波动率5个配电网灵活性评价指标。进而构建了在灵活性指标约束下计及可中断负荷及储能的配电网灵活性提升的多目标优化调度模型。仿真结果表明,通过灵活性资源的优化调度,可以有效提升含高渗透率分布式电源的配电网灵活性,提高配电网接纳分布式电源的能力。
Abstract:
      High-penetration distributed generations(DGs)connected into the distribution network leads to fluctuation and uncertainty in distribution network. In order to improve the capability of uncertainty treatment of distribution network, the flexibility enhancement of distribution network with high-penetration DG is studied. Firstly, the flexibility demand of distribution network with high DG penetration is explored. Then, five distribution network flexibility evaluation indexes are proposed, which include line capacity margin, transformer capacity margin upward, transformer capacity margin downward, net load fluctuation rate and maximum allowable net load fluctuation rate. The indexes represent the flexibility adequacy of distribution network capacity and the flexibility adaption of the embedded distributed generations, respectively. A multi-objective optimal scheduling model is established to improve the flexibility considering interruptible loads and energy storage. Simulation results show that the flexibility of the distribution network with high-penetration DGs can be improved by optimizing the scheduling of the flexible resources, and the hosting capability of distribution network for DG accommodation can increase.
查看全文(Free!)   查看附录   查看/发表评论  下载PDF阅读器