中国电力2025，Vol.58Issue(6)：122-136,15.DOI:10.11930/j.issn.1004-9649.202410057
考虑新能源的暂态功角与电压稳定一体化评估
Integrated Assessment of Transient Angle Stability and Voltage Stability Considering Renewable Energy Sources
摘要
Abstract
Transient angle instability and transient voltage instability often occur simultaneously and interact with each other,which increases the difficulty of stability assessment and emergency control.To achieve comprehensive guidance for emergency control through stability assessment,an instability mode recongnition method is proposed.This method describes the fault severity using the critical fault clearing time,characterizes the dominance of angle instability and voltage instability based on their occurrence order,and quantifies the coupling degree with the time difference between them.A four-quadrant instability mode recongnition diagram is constructed.To achieve the integrated online assessment,an improved convolutional neural network(CNN)model based on the convolutional block attention module(CBAM)is developed,and a two-stage integrated stability assessment scheme is proposed based on this model.Finally,the New England 10-machine 39-bus system is used for simulation verification,and the results show that the proposed method can achieve comprehensiveness,effectiveness and accuracy.Further,the applicability of the proposed method in systems with renewable energy is demonstrated using a modified 10-machine 39-bus system incorporating renewable energy.关键词
暂态功角稳定/暂态电压稳定/卷积块注意力模块/失稳模式/卷积神经网络Key words
transient angle stability/transient voltage stability/convolutional block attention modul/instability mode/convolutional neural network引用本文复制引用
步雨洛,吴俊勇,史法顺,季佳伸..考虑新能源的暂态功角与电压稳定一体化评估[J].中国电力,2025,58(6):122-136,15.基金项目
国家电网有限公司科技项目(4000-202257056A-1-1-ZN). This work is supported by Science and Technology Project of SGCC(No.4000-202257056A-1-1-ZN). （4000-202257056A-1-1-ZN）
