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CN 32-1180/TP

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基于凸包络的交直流混合配电网安全域
作者:
作者单位:

河海大学能源与电气学院,江苏省南京市

摘要:

现有配电网安全域研究主要针对交流配电网,文中提出基于凸包络的交直流配电网安全域模型。首先,计及电压约束、馈线容量约束和关键设备出力约束,构建交直流配电网非线性安全域模型。其次,基于非线性规划模型求解交直流混合配电网安全边界点。最后,采取凸包络拟合的方法生成可观测的安全域空间。算例结果验证了凸包络拟合的合理性和优越性,同时评估了交直流混合配电网中换流器控制方式、换流器无功补偿量和系统电压下限等因素对安全域大小的影响。

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基金项目:

国家自然科学基金资助项目(U1966205)。

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Convex Hull Based Security Region for AC/DC Hybrid Distribution Networks
Author:
Affiliation:

College of Energy and Electrical Engineering, Hohai University, Nanjing 211100, China

Abstract:

Current research on the security region of distribution networks generally focuses on the AC distribution networks. This paper proposes the convex hull based security region (CHSR) for AC/DC hybrid distribution networks. Firstly, a nonlinear security region model for AC/DC distribution networks is constructed by taking into account the voltage constraints, feeder capacity constraints and critical equipment output constraints. Secondly, the security boundary points of the AC/DC hybrid distribution network are solved based on the nonlinear programming model. Finally, the convex hull fitting approach is adopted to generate the observable security region space. The results of the example verify the rationality and superiority of CHSR. Meanwhile, the impact of the control modes of the converters, the reactive compensation volumes of the converters and the lower limit of the system voltage on the constructed security region are investigated.

Keywords:

Foundation:
This work is supported by Natural Science Foundation of China (No.U1966205).
引用本文
[1]裴蕾,卫志农,陈胜,等.基于凸包络的交直流混合配电网安全域[J/OL].电力系统自动化,http://doi. org/10.7500/AEPS20210220003.
PEI Lei, WEI Zhinong, CHEN Sheng, et al. Convex Hull Based Security Region for AC/DC Hybrid Distribution Networks[J/OL]. Automation of Electric Power Systems, http://doi. org/10.7500/AEPS20210220003.
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  • 收稿日期:2021-02-20
  • 最后修改日期:2021-07-15
  • 录用日期:2021-05-28
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