交直流配电网供电恢复问题的半定规划方法研究

吕东; 韩蓓; 汪可友; 李国杰; 张利军; 徐晨博; 孙轶恺

引用本文:	吕东,韩蓓,汪可友,等.交直流配电网供电恢复问题的半定规划方法研究[J].电力系统保护与控制,2019,47(20):16-24.
	LÜ Donglin,HAN Bei,WANG Keyou,et al.Semi-definite programming method for power supply restoration of AC/DC distribution network[J].Power System Protection and Control,2019,47(20):16-24

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交直流配电网供电恢复问题的半定规划方法研究
吕东^璘1,韩蓓¹,汪可友¹,李国杰¹,张利军²,徐晨博²,孙轶恺²
(1.上海交通大学电子信息与电气工程学院，上海 200240; 2.国网浙江省电力公司经济技术研究院，浙江杭州 310000)

摘要:

随着电力电子元件的发展，柔性直流技术已经逐步趋于成熟。在传统交流配网中加入柔性直流换流装置，建立了交直流混联配电系统，并基于短路故障后的供电恢复问题，应用半定规划方法来实现快速的系统供电恢复方案。通过VSC模型进行等效，提出了一种基于模型参数的VSC换流站的等效方式，并进一步在交直流混联系统中进行潮流优化。通过IEEE33节点的改进辐射网及环网算例进行计算，并进行不同等效方式的计算分析，验证了该等效方法的合理性及高效性。

关键词: 供电恢复半定规划柔性直流交直流配电网 VSC模型等效

DOI：10.19783/j.cnki.pspc.181335

分类号:

基金项目:国家高技术研究发展计划“863”课题(2015AA 050102);国网浙江省电力公司科技项目(5211JY16000X)

Semi-definite programming method for power supply restoration of AC/DC distribution network

LÜ Donglin¹,HAN Bei¹,WANG Keyou¹,LI Guojie¹,ZHANG Lijun²,XU Chenbo²,SUN Yikai²

(1. School of Electric Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;2. State Grid Jiangsu Economic Research Institute, Hangzhou 310000, China)

Abstract:

With the development of power electronic components, flexible DC technology has gradually been developed. In this paper, a flexible AC-DC converter is added to the traditional AC distribution network to establish an AC-DC hybrid distribution system, and based on the problem of power restoration after short trouble, a semi-definite programming method is applied to realize a fast system power restoration scheme. Firstly, with the structure of VSC model, this paper proposes an equivalent method of VSC converter station based on model parameters, then conducts power flow optimization in AC/DC hybrid system. Then, it uses the algorithm in radial and ring structured hybrid network developed from IEEE 33 nodes respectively, and the calculation and analysis of different equivalent methods are carried out to validate the rationality and high efficiency of the equivalent method. This work is supported by National High-tech R & D Program of China (863 Program) (No. 2015AA050102) and Science and Technology Project of State Grid Zhejiang Electric Power Company (No. 5211JY16000X).

Key words: power restoration semi-definite programming flexible DC technology AC/DC distribution network VSC model equivalence

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