电能质量扰动检测的研究综述

快速、准确、有效的电能质量扰动检测是电网故障分析与治理的前提和基础,在电力监测、电能质量评估及电网和用户的安全中扮演了重要角色.针对当前国内外相关研究成果进行整合归纳总结.首先,分析了电能质量扰动检测对象,归纳电能质量扰动检测的难点问题.其次,详细综述电能质量扰动检测方法的最新研究进展,将其分为时域分析、频域分析、时频...

Review of research development in power quality disturbance detection

Fast, accurate and effective Power Quality Disturbance (PQD) detection is the requirement and foundation of power grid fault analysis and power quality improvement, and it plays an important role in the safety of the power grid and users, as well as in power quality assessment and power monitoring. The latest domestic and overseas related research results are summarized in this paper. First, the objects of PQD detection are analyzed, and the difficulties of PQD detection are summarized. Second, a detailed review of the latest research progress of PQD detection methods is presented. The research methods are divided into the five major aspects of time domain, frequency domain, and time-frequency domain analysis, parameter estimation and artificial intelligence. The advantages and disadvantages of the five aspects are discussed and compared. Finally, the problems existing in the detection of transients and PQDs are pointed out, and the trend of future development is described.This work is supported by the Fundamental Research Funds for the Central Universities (No. 2020NQN04).