电压稳定分析的二阶概率连续潮流法  

Approach of quadratic probabilistic continuous power flow in voltage stabiling analysis

作　　者：宗秀红[1] 王克文[1] 张建芬[1] 董泰福[2] 

机构地区：[1]郑州大学电气工程学院,河南郑州450002 [2]河南电力试验研究所,河南郑州450052

出　　处：《继电器》2003年第8期1-4,共4页Relay

基　　金：国家自然科学基金资助项目 (5 0 1 770 2 8)

摘　　要：将概率潮流与二阶连续潮流 (QCPF)相结合 ,在QCPF计算中考虑负荷变化的彼此相关性。节点电压取直角坐标形式 ,确定了二阶概率连续潮流 (PCPF)的相关算式。在正态分布的± 4个标准差下 ,由求得的各点电压的分布特性 ,确定出PV曲线的分布范围。所得算法在IEEE5Combination of the probabilistic power flow and the quadratic continuous power flow(QCPF) approaches makes it possible to consider the dependencies of load variations in the QCPF calculation. With nodal voltages used in the rectangular form, equations for the proposed quadratic probabilistic continuation power flow(PCPF) were derived. Under the accepted limits of ±4 *(standard deviation) for the Normal distribution, the distribution ranges of PV curves were determined from the computed statistic characteristics of nodal voltages. This provides a static probablistic voltage stability analysis. The presented approach was studied on the IEEE 57 bus testing system.

关 键 词：电力系统 电压稳定分析 二阶概率连续潮流法 潮流计算 

分 类 号：TM712[电气工程—电力系统及自动化] TM744