摘要
为提高配网线路潮流计算的快速性和收敛精度,本文通过对比分析牛顿-拉夫逊法和P-Q分解法在不同配网场景下的优点和局限性,提出结合两种算法共同提高计算效率和精度的潮流计算联合策略,以期提高大规模复杂配电网的潮流计算的准确性和实用性。以IEEE9和IEEE30节点为例,对比分析牛顿法、P-Q分解法及联合迭代策略法的迭代次数和计算时长,研究发现,对于大规模电网而言,采用联合迭代策略,潮流计算的效率较高。
In order to improve the speed and convergence accuracy of power flow calculation for distribution networks,this paper compares and analyzes the advantages and limitations of Newton-Raphson method and P-Q decomposition method in different distribution network scenarios,and proposes a joint strategy for power flow calculation that combines the two algorithms to jointly improve computational efficiency and accuracy,in order to improve the accuracy and practicality of power flow calculation for large-scale and complex distribution networks.Taking IEEE9 and IEEE30 nodes as examples,compare and analyze the iteration times and calculation time of Newton's method,P-Q decomposition method,and joint iteration strategy method.Research has found that for large-scale power grids,adopting a joint iteration strategy results in higher efficiency in power flow calculation.
作者
黄蓉
HUANG Rong(State Grid Xiamen Power Supply Company,Xiamen,Fujian 361004,China)
出处
《自动化应用》
2023年第22期55-57,共3页
Automation Application
关键词
配电网
牛顿-拉夫逊法
P-Q分解法
联合迭代
distribution network
Newton-Raphson method
P-Q decomposition method
joint iteration
