太赫兹科学与电子信息学报2025，Vol.23Issue(7)：699-710,719,13.DOI:10.11805/TKYDA2025013
基于信息物理融合的有源配电网概率潮流计算
Probabilistic Load Flow calculation of active distribution network based on cyber-physical fusion
摘要
Abstract
With the development of urban electrification and renewable energy technologies,distributed power sources play an important role in distribution systems,but their random volatility and uncertainty bring challenges to system stability.To solve this problem,this paper proposes a new Probabilistic Load Flow(PLF)calculation method based on the concept of Cyber-Physical System(CPS)integration.This method comprehensively perceives the dynamic operation of the system through the CPS fusion model,takes into account the random volatility of distributed power generation,constructs the output probability model of wind and photovoltaic power generation,and uses the Copula theory to establish a joint model of the output correlation of wind and photovoltaic power plants.In addition,a Gaussian mixture model is proposed to reveal the probabilistic characteristics of the load.On this basis,a new probabilistic power flow calculation method is proposed by adopting the probability density evolution equation and using the finite difference method for efficient solution.This method provides an accurate and efficient calculation approach for power distribution systems considering distributed generation,which helps to ensure the safe and stable operation of the system.关键词
分布式电源/信息物理/数智化/概率潮流计算/Copula理论/概率密度演化方程Key words
distributed power generation/cyber-physical/digital intelligence/Probabilistic Load Flow(PLF)calculation/Copula theory/probability density evolution equation分类
信息技术与安全科学引用本文复制引用
梁铃,姬源,黄育松,覃海,代江,张云菊,郭明,石启宏,陈飞..基于信息物理融合的有源配电网概率潮流计算[J].太赫兹科学与电子信息学报,2025,23(7):699-710,719,13.基金项目
贵州电网公司科技资助项目(066500KK52222046) （066500KK52222046）
