Topology Selection and Parameter Configuration of MMC-MTDC System Considering Multi-dimension Application Scenarios

被引：0
|
作者：
Zhao Y. [1 ]
Huang W. [1 ]
Tai N. [1 ]
Fan F. [1 ]
Xi X. [2 ]
机构：
[1] Key Laboratory of Control of Power Transmission and Conversion, Ministry of Education, Shanghai Jiao Tong University, Shanghai
[2] Electric Power Research Institute of Yunnan Power Grid Co., Ltd., Kunming
来源：
Dianli Xitong Zidonghua/Automation of Electric Power Systems | 2020年 / 44卷 / 24期
基金：
中国国家自然科学基金; 国家重点研发计划;
关键词：
Economic analysis; Multi-terminal flexible direct current (MTDC); Renewable energy; Second-order cone programming (SOCP); Topology selection;
D O I：
10.7500/AEPS20200602002
中图分类号：
学科分类号：
摘要：
Aiming at the modular multilevel converter based multi-terminal flexible direct current (MMC-MTDC) transmission system, this paper proposes a scheme of topology selection and parameter configuration considering the multi-dimension characteristics of application scenarios. An economic optimization model for the whole life cycle of the MMC-MTDC transmission system considering topological differences is established with the scenario characteristics of three dimensions, i.e., temporal characteristic, spatial distribution and resource capacity. The modified second-order cone programming (SOCP) relaxation method is proposed to transform the nonconvex secondary optimization into SOCP. The economically optimal topologies in various application scenarios are obtained, and the configuration scheme of parameters such as the output of relevant equipment and line capacity is formulated. Based on the engineering parameters of Zhangbei flexible DC grid and Zhoushan MTDC transmission in China, this paper designs the four-terminal and five-terminal MMC-MTDC transmission systems in two typical application scenarios with long and short transmission distances. The economic analysis with three topologies is carried out from three aspects, i.e., total economic benefit, the consumption rate of renewable energy, and network loss in the whole life cycle. The effectiveness of the proposed topology selection method is validated. © 2020 Automation of Electric Power Systems Press.
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页码：96 / 104
页数：8
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