Review of recent grid synchronization techniques and phase-locked loops for power converters
Document Type
Article
Publication Date
1-1-2022
Abstract
In this paper, emerging grid synchronization techniques for power electronic converters are reviewed. In recent years, there has been a significant increase in the penetration of Distributed Generation (DG) in modern grid architecture. DGs such as solar photovoltaics, wind turbines are interfaced with the grid by way of power electronic converters. For ideal operation, these power electronic converters should be properly synchronized with the grid, i.e. there should be minimal difference between the grid and converter output voltage parameters such as frequency, phase and magnitude, in order to avoid abnormalities such as current transients. Frequency and phase should be tracked especially for driving internal control systems of the power electronic converter. Recent research has geared towards maintaining this synchronization – even during abnormal grid conditions – and exploring techniques which either advance or move away from conventional phase locked loop (PLL) approach. Through this review, modern advances in grid synchronization methods for power electronic converters will be highlighted, and the trajectory for subsequent research shall also be predicted. © 2022, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
Keywords
Grid synchronization, Phase angle detection, Phase-locked loop (PLL), Power electronic converter
Divisions
umpedac
Funders
RCMO,Universiti Sains Malaysia
Publication Title
Lecture Notes in Mechanical Engineering
Volume
25
Publisher
Springer Science and Business Media Deutschland GmbH