Multi-entity multi-measure combined line-loss control for active distribution networks

Authors

• Haiyun An, Electric Power Research Institute ， State Grid Jiangsu Electric Power Co .， Ltd.， Nanjing 211100 ， China
• Yufang Liu, State Grid Jiangsu Electric Power Co.， Ltd.， Nanjing 211100 ， China
• Qian Zhou, Electric Power Research Institute ， State Grid Jiangsu Electric Power Co .， Ltd.， Nanjing 211100 ， China
• Jiaxun Li, Tsinghua Shenzhen International Graduate School ， Tsinghua University ， Shenzhen 518055 ， ChinaFollow

Keywords

active distribution network, line-loss control, distributed renewable energy, reactive power compensation, operation optimization

Abstract

The large-scale integration of diverse entities，including wind power，photovoltaic generation，and energy storage，has transformed distribution networks from traditional passive networks into active bidirectional networks.While helping alleviate energy and environmental crises，this transformation also poses significant challenges to line-loss control in active distribution networks （ADNs ）.To address this issue，this paper proposes a multi-measure combined line-loss control method considering the participation of multiple entities.First，various loss-reduction measures，including distribution line upgrading，transformer replacement，and reactive power compensation，are considered comprehensively.A multi-objective optimization model accounting for both loss-reduction effectiveness and economic performance is established，with optimal economic operation of the ADN as the objective and secure operation of the distribution network with multi-entity participation as the constraint.Second，a multi-measure combined line-loss control strategy based on the benefit coefficient is proposed.By quantifying the ratio of loss-reduction benefits to costs，the optimal combination of integrated loss-reduction measures is determined.Third，a benefit-coefficient-based solution method is proposed to solve the established optimization model and obtain the optimal integrated loss-reduction strategy that meets the predefined loss-reduction target of the distribution network.Finally，simulation and comparative analyses were conducted through a case study.The simulation results show that the proposed method significantly reduces the line-loss rate of the multi-entity distribution network and maximizes the loss-reduction benefits.This study provides a scientific and efficient basis for decision-making on loss-reduction retrofits in ADNs.

DOI

10.19781/j.issn.1673-9140.2026.04.008

First Page

88

Last Page

97

Recommended Citation

An, Haiyun; Liu, Yufang; Zhou, Qian; and Li, Jiaxun (2026) "Multi-entity multi-measure combined line-loss control for active distribution networks," Journal of Electric Power Science and Technology: Vol. 41: Iss. 4, Article 8.
DOI: 10.19781/j.issn.1673-9140.2026.04.008
Available at: https://jepst.researchcommons.org/journal/vol41/iss4/8