A convergence adjustment method of power flow based on node type switching

被引：1

作者：

Li, Zhihuan ^{[1
]}

Han, Yunfei ^{[2
]}

Su, Yinsheng ^{[1
]}

Sun, Xin ^{[2
]}

Huang, He ^{[1
]}

Chen, Jinfu ^{[2
]}

机构：

[1] China Southern Power Grid Co. Ltd., Guangzhou

[2] State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan

来源：

Dianli Xitong Zidonghua/Automation of Electric Power Systems | 2015年 / 39卷 / 07期

关键词：

Convergence; Node type switching; Power flow calculation; Reactive power vacancy index;

D O I：

10.7500/AEPS20140916001

中图分类号：

学科分类号：

摘要：

The convergence adjustment of power flow plays an important role in the safe and economical operation of a power system. A convergence adjustment method of power flow based on node type switching is proposed to deal with the non-convergence situation of power flow calculation due to the imbalance of reactive power. In the case of non-convergence of power flow, all PQ nodes of the system are set to PV nodes and then these nodes are gradually recovered according to the proposed reactive power vacancy index. Finally, the nodes that cannot be recovered are determined, which provides an adjustment basis of power flow to the staff and lays a foundation for rationality adjustment of power flow. The analysis results of an IEEE 39-bus system and Shaoguan City system have verified the validity of the proposed algorithm and the adaptability of the large-scale power grid. ©2015 State Grid Electric Power Research Institute Press

引用

页码：188 / 193

页数：5

共 11 条

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