Open AccessPLL wrap function for synchronization in phase jump disturbances
Author(s) -
Clementina Rueda Germán,
I. Cambero,
Hossam A. Gabbar,
José Humberto Arroyo Núñez
Publication year - 2021
Publication title -
ingeniería e investigación/ingeniería e investigación
Language(s) - English
Resource type - Journals
eISSN - 2248-8723
pISSN - 0120-5609
DOI - 10.15446/ing.investig.v41n1.84955
Subject(s) - phase locked loop , sync , jump , control theory (sociology) , synchronization (alternating current) , phase (matter) , phase synchronization , interconnection , time domain , computer science , transformation (genetics) , amplitude , power (physics) , process (computing) , electronic engineering , signal (programming language) , engineering , telecommunications , physics , channel (broadcasting) , biochemistry , chemistry , control (management) , quantum mechanics , artificial intelligence , computer vision , gene , programming language , operating system , jitter
Synchrony plays a major role in the interconnection process between local electric power generation systems and the electrical grid. Grid phase disturbances prevent the generation system from maintaining synchrony. Therefore, an efficient phase tracking method is necessary in order to detect phase jumps and abrupt changes in amplitude. In this paper, we propose a software-designed method to strengthen phase tracking based on the wrap process of a second-level Phase Locked Loop (PLL). The term ‘wrap’ means establishing the phase values of the reference signal in intervals of π to match it with the values obtained from the PLL output (sync pulse). To quantify phase error, a mathematical transformation of the time domain to the frequency domain is implemented. The validity of the proposed wrap function is verified using electrical disturbances.