Method for Calculating Power Flow of Hybrid AC/DC Power Distribution System with Converter Station Operation Mode

YANG Yanhong; PEI Wei; DENG Wei; YU Ting; HUANG Renle

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Method for Calculating Power Flow of Hybrid AC/DC Power Distribution System with Converter Station Operation Mode

更新时间：2025-12-08

- Method for Calculating Power Flow of Hybrid AC/DC Power Distribution System with Converter Station Operation Mode
- Vol. 42, Issue 7, Pages: 2149-2157(2016)
- 作者机构：
  
  1. 中国科学院电工研究所
  2. 中国电力科学研究院
  3. 国网北京市电力公司
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published Online：31 July 2016，
  
  Published：2016
- 稿件说明：
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YANG Yanhong, PEI Wei, DENG Wei, et al. Method for Calculating Power Flow of Hybrid AC/DC Power Distribution System with Converter Station Operation Mode[J]. 2016, 42(7): 2149-2157.
DOI：

YANG Yanhong, PEI Wei, DENG Wei, et al. Method for Calculating Power Flow of Hybrid AC/DC Power Distribution System with Converter Station Operation Mode[J]. 2016, 42(7): 2149-2157. DOI：

摘要

针对含有VSC-MTDC的交直流配电网络

在充分考虑交流侧三相不平衡建模和VSC换流站运行控制方式的基础上

提出了一种交替迭代潮流计算方法。讨论了潮流计算时换流站主从控制、下垂控制等多种运行方式下的节点等效处理方法。在交流潮流计算时

将换流站等效为虚拟发电机节点

并采用了可计及三相不平衡的潮流计算方法。通过对改进的IEEE13节点算例的计算分析

表明所述方法可以灵活处理交直流配电网主从控制、下垂控制等多种运行方式并快速收敛

同时通过多端直流可以有效降低分布式电源接入对交流电压分布和三相不平衡的影响

在此基础上可以进一步开展交直流混合配电网三相不平衡补偿控制与运行优化方面的研究。

Abstract

In accordance with multi-terminal direct current（VSC-MTDC） structure hybrid AC/DC power distribution system

considering AC side three-phase unbalance model and VSC converter operation control mode simultaneously

we proposed a sequential AC/DC power flow method for the voltage source converter. Meanwhile

we discussed the node equivalent processing method with VSC station master-slave and droop control mode. VSC station was treated as dummy generator in AC power flow

and three-phase unbalance method was used. Simulation results on IEEE 13 node test system show that the proposed method can flexibly handle master-slave and droop control mode of hybrid AC/DC power distribution system and fast convergence

moreover

VSC-MTDC can effectively reduce the influence of voltage distribution and three-phase unbalance caused by distribution generator. The three-phase unbalance compensation and operation optimization of hybrid AC/DC power distribution system may be further researched based on the results in this paper.

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