A new phase-locked loop method for three-phase system

2016 ◽  
Author(s):  
Hongyan Zhao ◽  
Trillion Q. Zheng ◽  
Yan Li ◽  
Hong Li
Keyword(s):  
Phase Locked Loop ◽  
Phase System ◽  
Loop Method ◽  
Three Phase ◽  
New Phase

A New Phase-Locked Loop System for Three-Phase Applications

2013 ◽  
Vol 28 (3) ◽  
pp. 1208-1218 ◽  
Author(s):  
Masoud Karimi-Ghartemani ◽  
Mohsen Mojiri ◽  
Alireza Safaee ◽  
Jan Age Walseth ◽  
Sayed Ali Khajehoddin ◽  
...  
Keyword(s):  
Phase Locked Loop ◽  
Loop System ◽  
Three Phase ◽  
New Phase

A Phase Locked Loop Method for Low Voltage Ride-Through Control in Three-Phase Three-Wire Photovoltaic Grid System

2013 ◽  
Vol 415 ◽  
pp. 174-179
Author(s):  
Bao Ding ◽  
Gong Zhang ◽  
Yong Ming Zhang ◽  
Liang Zhao
Keyword(s):  
Phase Angle ◽  
Low Voltage ◽  
Phase Locked Loop ◽  
Grid System ◽  
Line Voltage ◽  
Low Voltage Ride Through ◽  
Loop Method ◽  
Synchronous Reference Frame ◽  
Automatic Phase ◽  
Three Phase

Low voltage ride through (LVRT) is regarded as one of the biggest challenges in photovoltaic grid equipments designing, manufacturing and control technology. The fast and accurate automatic phase locked control is the premise to achieve photovoltaic grid low voltage ride through. Considering that the traditional phase locked loop method is difficult to adapt the performance requirements of low voltage ride through (LVRT) in three-phase three-wire photovoltaic grid system, this paper presents a new three-phase unbalanced phase locked loop method. Improved second order generalized integral orthogonal signal generator (SOGI-OSG) is used for line voltage detection; Synchronous reference frame for phase locked loop (SRF-PLL) is used for line voltage phase locked and phase angle detection; Heron formula and Sine theorem is adopted to calculate the three-phase phase voltage amplitude and phase angle. Research results show that when grid voltage dips, this phase locked loop method can detect the fault signal accurately. It provides a technical support for photovoltaic grid low voltage ride through system.

scholarly journals Three-phase phase-locked loop algorithms based on sliding modes

2021 ◽  
pp. 1-1
Author(s):  
Arnau Doria-Cerezo ◽  
Victor Repecho ◽  
Domingo Biel
Keyword(s):  
Phase Locked Loop ◽  
Sliding Modes ◽  
Three Phase ◽  
Phase Phase

scholarly journals Hardware for classification of power quality problems in three phase system using Microcontroller

2017 ◽  
Vol 4 (1) ◽  
pp. 1386364 ◽  
Author(s):  
S. Asha Kiranmai ◽  
A. Jaya Laxmi ◽  
Qingsong Ai
Keyword(s):  
Power Quality ◽  
Phase System ◽  
Three Phase
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