采用柔性直流技术的智能配电网接入交流电网方式

HAN Yongxia

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采用柔性直流技术的智能配电网接入交流电网方式

更新时间：2025-08-13

- 采用柔性直流技术的智能配电网接入交流电网方式
- Automation of Electric Power Systems Vol. 40, Issue 13, Pages: 141-146(2016)
- 作者机构：
  
  华南理工大学电力学院,广东省,广州市,510640
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2016
- 稿件说明：
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HAN Yongxia. [J]. Automation of electric power systems, 2016, 40(13): 141-146.
DOI：

HAN Yongxia. [J]. Automation of electric power systems, 2016, 40(13): 141-146. DOI：

摘要

基于柔性直流技术的智能配电网与交流电网的连接方式是系统设计的基础

也是直流配电中的关键技术之一

为此针对±10 kV基于柔性直流技术的智能配电网接入交流电网的方式开展了理论和仿真分析。首先从理论上简要分析了其与10 kV交流配电网之间可能的连接方式及各种连接方式下交直流系统故障之间的相互影响。然后在电磁暂态仿真软件PSCAD/EMTDC中建立不同连接方式下的仿真模型并开展典型故障下的仿真计算

从过电压和过电流的角度分析交直流系统故障间的相互影响。最后

从系统运行可靠性和经济性的角度提出基于柔性直流技术的智能配电系统与交流电网之间推荐的连接方式

即直流配电系统通过联接变压器与交流电网连接。

Abstract

The access mode of the intelligent distribution network based on flexible DC technology to the AC network is the base of the system design

and is also one of the key technologies of DC distribution. Therefore

the theory and simulation analysis of it are conducted. First

the possible connecting modes and the mutual influence of them under faults are theoretically analyzed briefly. Then the typical faults are simulated by establishing the simulation models under different connecting modes with the electromagnetic transient simulation software PSCAD/EMTDC

and the influence between the DC and AC systems under the faults are analyzed by comparing the over-voltages and the over-currents. Finally

from the views of the reliability and construction cost of the system

the recommended connecting mode is put forward

that is the DC distribution network accessing to the AC network with a coupled transformer. This work is supported by National High Technology Research and Development Program of China(863 Program)(No. 2013AA050104)

Guangdong Provincial Natural Science Foundation of China(No. 2014A030313249)and National Natural Science Foundation of China(No. 51541704).

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