【摘要】 在利用电压稳定局部指标 LI 对参数空间降维的基础上 ,通过前馈神经网络描述相应电力系统结构的电压稳定可行域边界 (鞍—节分岔界面 ) ,基于这一神经网络可以在线快速地在 2维或 3维空间上绘出相关的可视化图形。对于系统结构改变的情形 ,用同一神经网络描述的近似稳定边界通常仍具有满意的精度。在天津 (华北 ) 1 65 9母线系统上得出了令人满意的可行域直观描述 ,有望达到在线监控的实时性要求。更多还原

【Abstract】 In a reduced dimension injection param eter space,this paper presents an approach for on- line voltage stability feasible region visualization by using ANN.To reduce the dimension of the voltage stability feasible region an im proved voltage stability index LI is em ployed.It is possible to get this region for different system configurations by using one ANN and setting different output values for this ANN.Due to its advantage on speed,it is possible to use this method in real tim e security m onitoring and control.A real bulk power system example is also given to validate this method.更多还原