CAJ | 학술논문

基于分岔理论，从系统全局结构稳定性层面，将相空间中平衡解流形上的运行点分解为吸引点和非吸引点；在小范围内，吸引点吸引所有相轨迹，非吸引点不能保证吸引所有相轨迹。将分岔理论应用于电力系统电压失稳乃至崩溃过程分析，证实电力系统电压失稳实质上是吸引域中运行点的相轨迹受扰后逃逸到非吸引域后呈现出的现象，并给出电力系统电压失稳过程的几何描述。
기우분차이론，종계통전국결구은정성층면，장상공간중평형해류형상적운행점분해위흡인점화비흡인점；재소범위내，흡인점흡인소유상궤적，비흡인점불능보증흡인소유상궤적。장분차이론응용우전력계통전압실은내지붕궤과정분석，증실전력계통전압실은실질상시흡인역중운행점적상궤적수우후도일도비흡인역후정현출적현상，병급출전력계통전압실은과정적궤하묘술。
Based on the bifurcation theory,the operating points on the equilibrium solution mani-fold in the phase space are decomposed into attract points and non attraction points from the structure global stability level.The attraction point attracts all phase traj ectories and the non at-traction point cannot guarantee to attract all phase traj ectories in a small range.The bifurcation theory is applied in the analysis of power system voltage instability or even collapse process in this paper.The process is the essence of the operating point on the attraction domain lost to the non attraction domain in phase traj ectory after disturbances,and the geometry detailed descrip-tion of power system voltage instability process is provided.