A sparse recovery model with fast decoupled solution for distribution state estimation and its performance analysis

• 作者: Junwei YANG Weiye ZHENG Wenchuan WU Yuntao JU
• 来源期刊: 现代电力系统与清洁能源学报(英文)
• 学科: 工学
• 关键词: DISTRIBUTION system STATE estimation SPARSE RECOVERY FAST decoupled method
• 年，卷（期）: 2019,（6）
• 页码范围: 1411-1421
• 页数: 11页
• 分类号: TM727

摘要

This paper introduces a robust sparse recovery model for compressing bad data and state estimation(SE),based on a revised multi-stage convex relaxation(R-Capped-L1)model.To improve the calculation efficiency,a fast decoupled solution is adopted.The proposed method can be used for three-phase unbalanced distribution networks with both phasor measurement unit and remote terminal unit measurements.The robustness and the computational efficiency of the R-Capped-Ll model with fast decoupled solution are compared with some popular SE methods by numerical tests on several three-phase distribution networks.