考虑支路功率约束的静态电压稳定分析  

Analysis on Static Voltage Stability Considering Restriction of Branch Power

作　　者：唐晓博[1] 高磊[2] 

机构地区：[1]哈尔滨电业局,黑龙江省哈尔滨市150010 [2]中国电力科学研究院,北京市海淀区100192

出　　处：《电网技术》2011年第4期98-102,共5页Power System Technology

摘　　要：提出了一种将连续法与崩溃点法相结合的电力系统静态电压稳定分析方法。该方法首先利用连续法求到电压临界点附近,并以此作为崩溃点法的初始点,最终求取电压临界点。该方法综合了原有连续法与崩溃点法的优点,同时弥补了各自的不足,实现了电压临界点的快速准确求取。用一种新的处理方法,有效地避免了电压临界点求取过程中的支路功率越限。算例分析结果验证了所提方法的准确性和有效性。A method to analyze power system static voltage stability, in which the continuous power flow method is combined with point of collapse method, is proposed. Firstly, using continuous power flow method the vicinity to the critical point of voltage is solved; then taking this result as the initial point of the point of collapse method; finally the critical point of voltage is obtained. The proposed method integrates the advantages of continuous power flow method and point of collapse method and remedies respective defect of each method, and by which the fast and accurate solution of the critical point of voltage is attained. Meanwhile, a new handling approach is adopted to effectively avoid out-of-limit of branch power. Results of calculation example show that the proposed method is accurate and effective.

关 键 词：静态电压稳定分析 连续法 崩溃点法 支路功率约束 

分 类 号：TM74[电气工程—电力系统及自动化]