主动配电网状态估计技术评述

间隙性分布式电源高渗透率并网,电动汽车、储能系统等可控负荷及高级量测装置的规模化接入使得主动配电网状态估计在结果精度要求、计算效率等方面面临诸多全新挑战。首先,简要阐述了国内外有关传统配电网状态估计技术前期的研究成果;然后,较为全面地梳理了主动配电网状态估计技术的国内外研究现状,包括新型伪量测的合理建模、状态估计算法的高效改进及量测装置的优化配置等研究方面;最后,对该领域未来进一步发展所面临的关键问题进行了探讨和分析。

Review on State Estimation Technique of Active Distribution Network

High penetration of distributed generators, controllable loads, such as electric vehicles, energy storage systems, and access and application of sheer number of measuring devices present the state estimation program of active distribution network with many challenges in accuracy and efficiency. Firstly, this paper briefly summarizes the existing research results of traditional distribution network state estimation. Then the research status of examining state estimation technique in active distribution network is comprehensively presented, including the modeling of novel pseudo-measurements, the efficient improvement of the state estimation algorithm and the optimal meter placement. Finally, several aspects that should be focused on in future development of state estimation of active distribution networks are outlined.