Voltage Level Optimization of Flexible HVDC System Based on Improved TOPSIS Method

RONG Fei; MAO Can; ZHOU Baorong; LI Hongxin; RAO Hong

doi:10.13296/j.1001-1609.hva.2021.05.004

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Voltage Level Optimization of Flexible HVDC System Based on Improved TOPSIS Method

更新时间：2025-04-26

- Voltage Level Optimization of Flexible HVDC System Based on Improved TOPSIS Method
- High VoltageApparatus Vol. 57, Issue 5, Pages: 21-28(2021)
- 作者机构：
  
  1. 湖南大学电气与信息工程学院
  2. 南方电网科学研究院直流输电技术国家重点实验室
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2021.05.004
  CLC： TM721.1
- Published：2021
- 稿件说明：
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[1]荣飞,毛灿,周保荣,李宏鑫,饶宏.基于改进TOPSIS方法的柔性直流输电系统电压等级优选[J].高压电器,2021,57(05):21-28.

RONG Fei, MAO Can, ZHOU Baorong, et al. Voltage Level Optimization of Flexible HVDC System Based on Improved TOPSIS Method[J]. High voltageapparatus, 2021, 57(5): 21-28.
[1]荣飞,毛灿,周保荣,李宏鑫,饶宏.基于改进TOPSIS方法的柔性直流输电系统电压等级优选[J].高压电器,2021,57(05):21-28. DOI： 10.13296/j.1001-1609.hva.2021.05.004.

RONG Fei, MAO Can, ZHOU Baorong, et al. Voltage Level Optimization of Flexible HVDC System Based on Improved TOPSIS Method[J]. High voltageapparatus, 2021, 57(5): 21-28. DOI： 10.13296/j.1001-1609.hva.2021.05.004.

摘要

电压等级是柔性直流输电系统中的研究基础

为了能够合理地选择电压等级

文中提出改进TOPSIS法进行柔性直流输电系统电压等级优选。文中首先根据输电容量和输电距离数据

根据理论计算和现场调研

计算出电压等级的范围

参考直流输电系统已确定的电压等级

提出候选的柔性直流输电系统电压等级方案;然后分析影响柔性直流输电系统电压等级的主要因素

构建柔性直流输电系统电压等级的评价指标体系;最后运用改进TOPSIS法进行电压等级优选

在权重确定时采用主观权重确定方法——层次分析法和客观权重确定方法——熵值法来共同确定指标综合权重

建立基于综合赋权—改进TOPSIS法的评价模型;并对柔性直流输电工程实例进行具体计算

得出该工程合理的电压等级为±800 kV。

Abstract

Voltage level is the study foundation of flexible HVDC transmission system.In order to select reasonably the voltage level

the improved TOPSIS method to optimize the voltage level of flexible HVDC transmission system is proposed in this paper.Firstly

the range of voltage level is calculated according to the data of transmission capacity and transmission distance and theoretical calculation and field investigation.The candidate flexible DC flexible system is proposed with reference of the defined voltage level of the DC transmission system.Then

the main factors affecting the voltage level of flexible HVDC system are analyzed and the evaluation index system of the voltage level of flexible HVDC system is constructed.Finally

the improved TOPSIS method is used to optimize the voltage level.In case of weight determination

the subjective weight determination method-analytic hierarchy process（AHP）and objective weight determination method-entropy method are used to determine the comprehensive weight of the index

and the evaluation model based on the comprehensive weight-improved TOPSIS method is set up.It is concluded through the calculation of a flexible HVDC transmission project that the reasonable voltage level of the project is±800 kV.

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