基于改进Matpower连续潮流算法的静态电压稳定性分析  

Analysis of Static Voltage Stability Based on the Improved Continuous Power Flow Algorithm of Matpower

作　　者：张宾[1] ZHANG Bin(Department of Equipment,First Affiliated Hospital of Bengbu Medical College,Bengbu 233000,China)

机构地区：[1]蚌埠医学院第一附属医院设备科,安徽蚌埠233000

出　　处：《西安文理学院学报（自然科学版）》2020年第2期25-29,共5页Journal of Xi’an University(Natural Science Edition)

摘　　要：连续潮流算法通过引入一维校正方程有效地解决了传统潮流在功率极限附近时雅可比矩阵的奇异问题,从而追踪得到负荷不断增加的PV曲线以研究电网系统的静态电压稳定性.基于Matpower程序对连续潮流算法进行改进,通过引入单节点增加负荷以及多节点等步长增加负荷模式,从而追踪得到该模式下的多节点PV曲线以及崩溃电压值.提出了电压崩溃裕度指标和极限功率裕度,用来表征该节点的电压坚强程度.最后以某地区220kV电网为算例进行分析,验证了该方法的有效性.The singular problem of Jacobian matrix of traditional power flow near the power limit is solved by introducing one-dimensional correction equation.Thus,the PV curve with increasing load can be traced to study the static voltage stability of power system.Based on Matpower program,the continuous power flow algorithm is improved.By introducing single node load increasing mode and multi node equal step load increasing mode,the multi node PV curve and collapse voltage value under the mode can be traced.The voltage collapse margin index and the limit power margin are proposed to characterize the voltage strength of the node.Finally,an example of 220kV power grid in a certain area is analyzed to verify the effectiveness of the method.

关 键 词：连续潮流 静态电压 PV曲线 电压裕度 功率裕度 

分 类 号：TM712[电气工程—电力系统及自动化]