摘要
文章在传统牛顿一阶法和PQ分解法的基础上,研究了保留牛顿二阶项的潮流算法和计及频率偏移的潮流计算,并进行了仿真。结果表明:保留二阶法,可以得到精确表达式,会出现三维矩阵,变雅可比算法是最精确的,但是可能耗时比较久,而定雅可比算法同样满足电力系统潮流计算需求,计算速度相比定雅可比算法有所改进;而计及频率偏移时,能够使得潮流结果更加快速和精确。
Based on the traditional Newton first-order method and PQ decomposition method, this paper studies the powerflow algorithm for retaining Newton second-order term and the load flow calculation with frequency offset, and simulatesit . The results show that the exact expression can be obtained by retaining the second-order method, the three-dimensionalmatrix will appear, and the variable Jacobian algorithm is the most accurate, but it may takea long time, while the DJalgorithm also meets the power flow calculation requirements of the power system. Compared with the DJ algorithm, itimproves; when the frequency offset is taken into account, it can make the trend result faster and more accurate.
作者
陈蔚
CHEN Wei(Calibration Center of Hunan Electronic Information Industry Institute,Changsha 410001,China)
出处
《电脑与信息技术》
2018年第6期8-11,共4页
Computer and Information Technology
关键词
潮流算法
频率偏移
仿真
二阶
power flow algorithm
frequency offset
simulation
second order
