含分布电源配电网多时段线性化二阶锥松弛算法研究
Research on second-order cone relaxation algorithm for multi-time linearization of distribution networks with distributed power sources
朱美媛 1艾永乐 1王允建1
作者信息
- 1. 河南理工大学 电气工程与自动化学院,河南 焦作 454003
- 折叠
摘要
针对分布式电源接入配电网影响系统电压分布和潮流分析、造成系统电能质量下降的问题,建立系统优化模型,对系统电压、潮流进行分析与优化,提出含分布式电源的配电网多时段线性化二阶锥松弛优化算法.对分布式电源接入的配电网进行潮流分析,建立分布式配电网最优潮流优化模型;对分布式配电网潮流优化模型进行简化处理,针对潮流分析中非凸非线性,提出多时段二阶锥松弛优化算法;针对电容器组、有载调压变压器的非凸非线性问题,进行分段线性化处理.仿真结果表明,提出的算法能合理调度有载调压变压器、电容器组和分布电源的出力,有效降低网损,减小电网电压偏差.
Abstract
To address the issue of degraded power quality in the system caused by the integration of distributed power gen-eration into the distribution network,a system optimization model is proposed.This model aims to analyze and optimize sys-tem voltage and tidal current.It introduces a linearized second-order cone relaxation optimization algorithm tailored for dis-tribution networks with distributed power sources.The model includes power flow analysis of the distribution network con-nected to distributed power generation,leading to the establishment of a distributed distribution network tidal optimization model.The distributed distribution network tidal optimization model is simplified,and a multi-time second-order cone relax-ation optimization algorithm is introduced to address non-convex nonlinearities in tidal analysis,and segmental linearization is applied to handle the non-convex nonlinearity of capacitor banks and on-load regulator transformers.Simulation results demonstrate that the proposed algorithm can reasonably dispatch the output of on-load regulating transformers,capacitor banks and distributed power sources,resulting in reduced network loss and the voltage deviation in the grid.
关键词
最优潮流/混合整数线性规划/分段线性规划/多时段SOCP算法Key words
optimal power flow/mixed integer linear programming/segmented linear programming/multi-period SOCP al-gorithm引用本文复制引用
基金项目
河南省科技攻关计划项目(172102310569)
出版年
2024
国家科技期刊平台
NSTL
万方数据