含分布式电源的三相不平衡配电网连续潮流计算

ZHAO Jinquan

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含分布式电源的三相不平衡配电网连续潮流计算

更新时间：2025-08-13

- 含分布式电源的三相不平衡配电网连续潮流计算
- Automation of Electric Power Systems Vol. 39, Issue 9, Pages: 48-53(2015)
- 作者机构：
  
  可再生能源发电技术教育部工程研究中心, 河海大学,江苏省,南京市,210098
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- Published：2015
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ZHAO Jinquan. [J]. Automation of electric power systems, 2015, 39(9): 48-53.
DOI：

ZHAO Jinquan. [J]. Automation of electric power systems, 2015, 39(9): 48-53. DOI：

摘要

连续潮流是电力系统电压稳定分析的重要工具。针对含不同类型分布式电源的配电网及其三相线路参数和负荷不平衡的情况，提出了一种三相配电网连续潮流方法，由切线预测环节和牛顿法校正环节组成，并采用局部几何参数化策略处理三相不平衡系统PV曲线的斜锐角现象。考虑了PV和PQ节点类型分布式电源的限值约束，给出了新的节点类型双向转换逻辑和分岔点类型识别方法。通过对IEEE 33节点配电系统进行算例仿真，表明所述算法可以有效追踪三相配电系统的PV曲线，准确计算电压稳定临界点并识别分岔点类型。

Abstract

Continuation power flow is an important tool for assessing power system voltage stability. A continuation power flow calculation method for three-phase distribution networks is proposed for the unbalanced three-phase lines and loads existing in distribution networks with distributed generators (DGs). Composed of the tangent predictor and the Newton corrector

the proposed method uses local geometric parameterization technique for the characteristics of the PV curves of three-phase unbalanced systems. And a double-switching logic is proposed for handling the operation constraints of DGs modeled as PV and PQ nodes. A scheme for identifying the type of bifurcation is also given. Simulation results on an IEEE 33-bus distribution system show that the proposed method is effective in tracing the PV curves of three-phase distribution systems and calculating the voltage stability critical point as well as identifying the type of bifurcation. This work is supported by National Natural Science Foundation of China (No. 51077042)

National High Technology Research and Development Program of China (863 Program) (No. 2012AA050207) and Specialized Research Fund for the Doctoral Program of Higher Education (SRFDP) of China (No. 20120094110008).

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