基于阻抗分析法的柔性直流馈入容量计算方法

CAI Guowei

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基于阻抗分析法的柔性直流馈入容量计算方法

更新时间：2025-08-13

- 基于阻抗分析法的柔性直流馈入容量计算方法
- Automation of Electric Power Systems Vol. 40, Issue 21, Pages: 66-72(2016)
- 作者机构：
  
  东北电力大学电气工程学院,吉林市,吉林省,132012
- 作者简介：
- 基金信息：
- DOI：
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- Published：2016
- 稿件说明：
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CAI Guowei. [J]. Automation of electric power systems, 2016, 40(21): 66-72.
DOI：

CAI Guowei. [J]. Automation of electric power systems, 2016, 40(21): 66-72. DOI：

摘要

确定合理的直流馈入容量极限值对于保证受端电网安全稳定运行具有重要意义。以奈奎斯特判据为理论基础

提出了基于阻抗分析法的并网柔性直流输电系统馈入容量极限值计算方法。该方法不需要对变流器内部进行分析

只根据变流器的输出阻抗和电网阻抗的比值即可进行计算

使这种方法更加简捷。通过在IEEE 39节点系统上进行仿真分析

验证了所提方法的有效性

同时对影响直流输电系统的直流侧极限馈入容量的因素进行了分析。

Abstract

Determining the reasonable limit value of reasonable DC infeed capacity to ensure safe and stable operation of power grid is of great significance. According to the Nyquist criterion

a method is proposed based on impedance analysis to calculate the limit capacity of the grid-connected flexible DC transmission system. It makes the method simple so only the ratio of the grid impedance to the converter impedance is needed rather than learning about the inside of the converter. Through a simulation analysis on an IEEE 39-node system

the validity of the proposed method is verified

and the impact on the limit infeed capacity in the DC transmission system is briefly treated. This work is supported by National Natural Science Foundation of China(No. 51507028)and State Grid Corporation of China(No. XT71-15-053).

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