基于节点类型转换的潮流收敛性调整方法

LI Zhihuan

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基于节点类型转换的潮流收敛性调整方法

更新时间：2025-08-13

- 基于节点类型转换的潮流收敛性调整方法
- Automation of Electric Power Systems Vol. 39, Issue 7, Pages: 188-193(2015)
- 作者机构：
  
  中国南方电网有限责任公司,广东省,广州市,510623
- 作者简介：
- 基金信息：
- DOI：
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- Published：2015
- 稿件说明：
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LI Zhihuan. [J]. Automation of electric power systems, 2015, 39(7): 188-193.
DOI：

LI Zhihuan. [J]. Automation of electric power systems, 2015, 39(7): 188-193. DOI：

摘要

潮流收敛性调整对于电网的安全经济运行具有重要意义。针对无功功率不平衡导致的系统潮流计算不收敛，提出一种基于节点类型转换的潮流收敛性调整方法。在潮流不收敛的情况下，将系统全部PQ节点设置为PV节点，按该方法中的无功缺额指标将节点逐步恢复为PQ节点，确定无法恢复的节点。该结果给工作人员提供了潮流调整的依据，也为潮流合理性调整奠定了基础。对IEEE 39节点系统和韶关市电网进行仿真计算，验证了所述方法的有效性和对大规模电网的适应性。

Abstract

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.

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