电网技术2024，Vol.48Issue(7)：2910-2918,中插77,10.DOI:10.13335/j.1000-3673.pst.2023.0987
计及电压动态特性的虚拟同步机暂态稳定性分析
Transient Stability Analysis of Virtual Synchronous Generator Considering Voltage Dynamic Characteristics
摘要
Abstract
To address the misjudgment in the transient stability analysis of virtual synchronous generators when only considering the swing equation,the impact of voltage dynamics at the points of common coupling on the transient behavior of the system is first considered.A transient model considering the dynamic characteristics of voltage is established to achieve a comprehensive and accurate depiction of the dynamic characteristics of the virtual synchronous generator.On this basis,a fast iterative algorithm for directly solving the critical clearing angle and the critical clearing time is proposed,and the mechanism that the changes in the core control parameters of the virtual synchronous generator may affect the transient stability of the system is analyzed.Finally,an electromagnetic transient model of a virtual synchronous generator with the typical structure is built to verify the correctness of the theoretical analysis and the proposed algorithm.The results show that,compared to the transient model that only considers the swing equation,the proposed model more accurately depicts the transient characteristics of the virtual synchronous generators.关键词
虚拟同步机/摇摆方程/暂态稳定性/电压动态特性Key words
virtual synchronous generator/swing equation/transient stability analysis/voltage dynamics分类
信息技术与安全科学引用本文复制引用
魏凤廷,张海涛,王秀丽,周嘉豪,韩吉治,沙子豪..计及电压动态特性的虚拟同步机暂态稳定性分析[J].电网技术,2024,48(7):2910-2918,中插77,10.基金项目
陕西省自然科学基础研究计划项目(2022JQ-309).Project Supported by Natural Science Basic Research Program of Shaanxi(2022JQ-309). （2022JQ-309）
