Power Flow Sensitivity Analysis Model with Wide Adaptability for Active Distribution Networks

Qi LIU; Shouxiang WANG; Xingquan JI

doi:10.7500/AEPS20190509002

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Power Flow Sensitivity Analysis Model with Wide Adaptability for Active Distribution Networks

Basic Research | 更新时间：2025-06-16

- Power Flow Sensitivity Analysis Model with Wide Adaptability for Active Distribution Networks
- Automation of Electric Power Systems Vol. 44, Issue 13, Pages: 81-88(2020)
- 作者机构：
  
  1. 智能电网教育部重点实验室（天津大学），天津市 300072
  2. 山东科技大学电气与自动化工程学院，山东省青岛市 266590
- 作者简介：
- 基金信息：
  
  National Key R&D Program of China
- DOI：10.7500/AEPS20190509002
  CLC：
- Received：09 May 2019，
  
  Revised：2019-11-18，
  
  Published Online：22 May 2020，
  
  Published：10 July 2020
- 稿件说明：
移动端阅览
刘琪,王守相,吉兴全.主动配电网宽适应性潮流灵敏度分析模型[J].电力系统自动化,2020,44(13):81-88.

LIU Qi,WANG Shouxiang,JI Xingquan.Power Flow Sensitivity Analysis Model with Wide Adaptability for Active Distribution Networks[J].Automation of Electric Power Systems,2020,44(13):81-88.
刘琪,王守相,吉兴全.主动配电网宽适应性潮流灵敏度分析模型[J].电力系统自动化,2020,44(13):81-88. DOI： 10.7500/AEPS20190509002.

LIU Qi,WANG Shouxiang,JI Xingquan.Power Flow Sensitivity Analysis Model with Wide Adaptability for Active Distribution Networks[J].Automation of Electric Power Systems,2020,44(13):81-88. DOI： 10.7500/AEPS20190509002.

摘要

分布式发电、储能及柔性负荷在配电网的大量接入引起配电网潮流的频繁变化

构建准确、简洁的节点注入功率与运行参数的函数模型对主动配电网的规划和运行至关重要。结合配电网辐射状拓扑结构，提出了一种对节点注入功率变化具有宽适应性的潮流灵敏度分析模型。所提灵敏度分析模型具体包含节点注入功率对线路损耗的二次形式的灵敏度模型、节点注入功率对节点电压的线性形式的灵敏度模型和节点注入功率对线路潮流的二次形式的灵敏度模型。对灵敏度模型应用于存在弱环网的配电系统时的有效性进行了分析

利用IEEE 33 节点配电系统和含环网的IEEE 123 节点配电系统进行仿真分析，仿真结果证明了所提灵敏度模型的有效性。

Abstract

The large-scale integration of distributed generations

energy storage systems and flexible loads in the distribution network causes frequent changes in power flows of the distribution network. It is very important for the planning and operation of active distribution networks to build an accurate and concise function model of node injection power and operation parameters. Combined with the radial topology of the distribution network

a power flow sensitivity analysis model with wide adaptability to the change of node injection power is proposed. The proposed model includes a quadratic sensitivity model of nodal power injections to line losses

a linear sensitivity model of nodal power injections to nodal voltages

a quadratic sensitivity model of nodal power injections to branch power. The effectiveness of the sensitivity model applied to the distribution system with weak ring network is analyzed. The IEEE 33-bus distribution system and the IEEE 123-bus distribution system with ring network are used for simulation analysis. The simulation results prove the effectiveness of the proposed sensitivity model.

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references

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