中国电机工程学报2025，Vol.45Issue(10)：3813-3825,中插10,14.DOI:10.13334/j.0258-8013.pcsee.232569
考虑设备外特性影响的多馈入电力系统静态电压稳定分析
Static Voltage Stability Analysis of Multi-infeed Power Systems Considering the Influence of External Characteristics of Equipment
摘要
Abstract
To address the limitation of existing short-circuit ratio metrics in accounting for the influence of flexible external characteristics across different devices,this paper proposes a comprehensive metric called the hybrid equivalent short-circuit ratio for evaluating static voltage stability in multi-infeed power systems.First,the Jacobian matrix on the network side and the device side is derived.The relation between the traditional multi-infeed short circuit ratio and the Jacobian matrix is analyzed,which reveals the essence that the critical value of the traditional multi-infeed short-circuit ratio is difficult to be unified.Then,based on the singular boundary of the system Jacobian matrix,the multi-infeed short-circuit ratio is extended to various equipment application scenarios,and a hybrid equivalent short-circuit ratio index is proposed,which can consider the influence of different equipment external characteristics.Finally,considering the influence of equipment control mode,line impedance angle and other factors on the index,the qualitative analysis is carried out.The simulation example shows that the proposed index can accurately evaluate the static voltage stability of multi-infeed power systems.关键词
混合等值短路比/静态电压稳定/多馈入电力系统/系统雅可比矩阵/设备外特性Key words
hybrid equivalent short circuit ratio/static voltage stability/multi-infeed power system/system Jacobian matrix/external characteristics of equipment分类
信息技术与安全科学引用本文复制引用
王冲,庞榕泽,杨晓雷,韩中杰,鞠平..考虑设备外特性影响的多馈入电力系统静态电压稳定分析[J].中国电机工程学报,2025,45(10):3813-3825,中插10,14.基金项目
国家电网有限公司科技项目(5108-202218280A-2-436-XG).Science and Technology Project of State Grid Corporation of China(5108-202218280A-2-436-XG). （5108-202218280A-2-436-XG）
