Open-loop synchronization systems for grid-tied power converters: Literature overview, design considerations, advantages, and disadvantages

S Golestan, JM Guerrero, Y Al-Turki… - IEEE Industrial …, 2021‏ - ieeexplore.ieee.org
Primitive grid synchronization systems of power converters were based on a zero-crossing
detection (ZCD) algorithm, which is an open-loop synchronization (OLS) system. ZCD …

Robust Band-Pass Filter-Based PLL-Less Approach for Three-Phase Non-Sinusoidal Grid Conditions

M Kumar, AK Verma, C Burgos-Mellado… - IEEE Open Journal …, 2024‏ - ieeexplore.ieee.org
The performance enhancement of an inverter-based grid-connected system necessitates a
fast and accurate dynamic response in terms of estimating three-phase grid voltage …