电力系统自动化2024，Vol.48Issue(8)：30-41,12.DOI:10.7500/AEPS20230823001
电力系统惯量需求:概念、指标及评估方法
Inertia Requirement of Power System:Concepts,Indexes,and Evaluation Method
摘要
Abstract
The low-inertia operation risk is a major problem in the process of low-carbon transition of electric power,and it has become a pain point and a key bottleneck restricting the sustainable development of new power systems with renewable energy as the main body.Inertia requirement evaluation is the foundation for realizing risk perception and control of low-inertia systems.However,the current concepts related to inertia requirements are still unclear and do not fully consider the influence of fault types and the security defense lines of power grid frequency,resulting in unreasonable evaluation results.This paper studies the inertia requirement analysis of the power system from three aspects:basic concepts,characterization indexes,and evaluation methods.Firstly,considering the multi-stage response characteristics of inertia support power,the basic concept of inertia requirement for the power system is proposed,and quantitative characterization indexes for inertia requirements are presented from the perspective of energy and time sequence.Furthermore,considering the influence of fault types and frequency security control strategies,an inertia requirement evaluation method and grading mechanism applicable to the security defense lines of power grid frequency are constructed.Finally,taking a provincial power grid in China as a case,the proposed method is used to evaluate and analyze the system inertia requirements,verifying the rationality and effectiveness of the proposed method.关键词
惯量/惯量需求/电力系统/频率安全/频率控制/评估方法Key words
inertia/inertia requirement/power system/frequency security/frequency control/evaluation method引用本文复制引用
文云峰,张武其,郭威..电力系统惯量需求:概念、指标及评估方法[J].电力系统自动化,2024,48(8):30-41,12.基金项目
国家自然科学基金资助项目(52077066) （52077066）
湖南省自然科学杰出青年基金资助项目(2024JJ2022). This work is supported by National Natural Science Foundation of China(No.52077066)and Hunan Provincial Natural Science Foundation of China for Distinguished Young Scholars(No.2024JJ2022). （2024JJ2022）
