值集法在大电网鲁棒稳定分析中的实现及与μ方法比较

ZHOU Jinghao

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值集法在大电网鲁棒稳定分析中的实现及与μ方法比较

更新时间：2025-08-13

- 值集法在大电网鲁棒稳定分析中的实现及与μ方法比较
- Automation of Electric Power Systems Vol. 42, Issue 1, Pages: 98-104(2018)
- 作者机构：
  
  浙江大学电气工程学院,浙江省,杭州市,310027
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2018
- 稿件说明：
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ZHOU Jinghao. [J]. Automation of electric power systems, 2018, 42(1): 98-104.
DOI：

ZHOU Jinghao. [J]. Automation of electric power systems, 2018, 42(1): 98-104. DOI：

摘要

值集法是基于特征多项式的图形化分析方法，能够分析不确定参数对系统稳定性的影响。文中介绍了值集法在大规模电力系统中的实现方法，包括大数处理、内存优化、降阶效果的评估与调整以及鲁棒D稳定性的应用等，这些对于值集法的实际使用至关重要。此外，还从鲁棒稳定性判断、稳定裕度计算、参数作用分析、保守程度、计算速度等方面对值集法和电力系统常用的结构奇异值(μ)方法进行了比较。最后，以华北电网方式数据为例介绍了值集法在大规模系统中的实现方法，并将值集法与μ方法的结果进行了比较，体现了两种方法的特点。

Abstract

The value set approach is a graphics-oriented method based on the characteristic polynomial of the system. It can be used to analyze the impacts of uncertain parameters on the system stability. This paper describes the implementation of the value set approach in the robust stability analysis of the large power system

including the treatment of large numbers

memory optimization

assessment and adjustment of system reduction

and application to Gamma-stability criterion. These techniques are vital for the actual application of the value set approach. Also the value set approach is compared with the widely used μ-based approach in terms of their robustness stability analysis

stability margin calculation

parameter impact analysis

conservativeness

and computation speed. Finally

the North China system is used to illustrate the implementation of the value set approach and test the two approaches

which reflects characteristics of the two approaches.

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Related Institution

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