直流输电对交直流互联系统自组织临界性的影响分析

Tu Jing-Zhe

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直流输电对交直流互联系统自组织临界性的影响分析

更新时间：2025-08-13

- 直流输电对交直流互联系统自组织临界性的影响分析
- Automation of Electric Power Systems Vol. 36, Issue 11, Pages: 7-13(2012)
- 作者机构：
  
  浙江大学电气学院
- 作者简介：
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- Published：2012
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Tu Jing-Zhe. [J]. Automation of electric power systems, 2012, 36(11): 7-13.
DOI：

Tu Jing-Zhe. [J]. Automation of electric power systems, 2012, 36(11): 7-13. DOI：

摘要

近十年国内外学者应用自组织临界理论对连锁故障及大停电开展了广泛研究，然而多数研究没有考虑直流输电以及完整的系统动态特性。不同的直流运行方式、直流控制参数、交直流互联方式、交直流容量分配会影响交直流互联系统的自组织临界性。提出了一种考虑紧急控制保护装置及直流系统概率动作特性的连锁故障动态仿真模型，应用该模型对2010年华东电网实际系统进行了动态仿真，在不同的直流运行方式、直流控制参数、交直流互联方式、交直流容量分配条件下，计算了系统的停电功率—停电概率幂律曲线，分析了直流输电对系统自组织临界性的影响。结果表明，在某些系统中选取合适的直流输电模式可以减小连锁故障及大停电的发生概率。

Abstract

In recent ten years scholars around the world have widely studied the cascading failure and blackout applying the self-organized criticality theory

but DC transmission and complete system dynamics are not considered in most of the studies. Different DC operation modes

DC control parameters

AC/DC interconnection modes

and AC/DC capacity distributions will affect the self-organized criticalty of the AC/DC interconnected system. A dynamic cascading failure model considering probability characteristics of emergency control & protection device and DC system is proposed

with which dynamic simulation of the 2010 East China power grid is performed. Under conditions of different DC operation modes

DC control parameters

AC/DC interconnection modes

and AC/DC capacity distributions

the outage power—outage probability power law curves of the system are calculated

the impact of the DC transmission on system self-organized criticality is analyzed. It can be known from the results that in certain system

the probability of cascading failure and blackout can be decreased by selecting the suitable DC transmission mode.

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