scholarly journals A Quasi open‐loop robust three‐phase grid‐synchronization technique for non‐ideal grid

2021 ◽  
Author(s):  
Hafiz Ahmed ◽  
Samet Biricik ◽  
Mohamed Benbouzid
Keyword(s):  
Open Loop ◽  
Grid Synchronization ◽  
Three Phase

An Improved Hybrid Prefiltered Open-Loop Algorithm for Three-Phase Grid Synchronization

2021 ◽  
Vol 68 (3) ◽  
pp. 2480-2490 ◽  
Author(s):  
Anant Kumar Verma ◽  
Raj Kumar Jarial ◽  
Pedro Roncero-Sanchez ◽  
Mohan Rao Ungarala ◽  
Josep M. Guerrero
Keyword(s):  
Open Loop ◽  
Grid Synchronization ◽  
Three Phase

scholarly journals Adaptive Filtering-Based Pseudo Open-Loop Three-Phase Grid-Synchronization Technique

Energies ◽  
2020 ◽  
Vol 13 (11) ◽  
pp. 2927 ◽  
Author(s):  
Hafiz Ahmed ◽  
Samet Biricik ◽  
Elhoussin Elbouchikhi ◽  
Mohamed Benbouzid
Keyword(s):  
Adaptive Filtering ◽  
Adaptive Filters ◽  
Frequency Estimation ◽  
Open Loop ◽  
Phase System ◽  
Comparative Performance ◽  
Reduced Order ◽  
Grid Synchronization ◽  
Synchronization Problem ◽  
Three Phase

This paper studies the grid-synchronization problem of three-phase system. Second-order adaptive filters are a popular tool for grid-synchronization. In this context, reduced-order generalized integrator has attracted some attention in recent time. However, existing implementations cannot control directly the closed-loop poles (real and imaginary) of reduced-order generalized integrator. To overcome this limitation, this paper proposes a novel reduced-order generalized integrator structure. To make the proposed technique frequency adaptive, an open-loop frequency estimation technique is also used. Comparative performance analysis are provided over two other advanced and recently proposed techniques. Results demonstrate the suitability and effectiveness of the proposed technique.

Grid Synchronization Systems of Three-Phase Grid-Connected Power Converters: A Complex-Vector-Filter Perspective

2014 ◽  
Vol 61 (4) ◽  
pp. 1855-1870 ◽  
Author(s):  
Weiwei Li ◽  
Xinbo Ruan ◽  
Chenlei Bao ◽  
Donghua Pan ◽  
Xuehua Wang
Keyword(s):  
Power Converters ◽  
Complex Vector ◽  
Grid Synchronization ◽  
Three Phase

scholarly journals Performance Evaluations of Four MAF-Based PLL Algorithms for Grid-Synchronization of Three-Phase Grid-Connected PWM Inverters and DGs

2016 ◽  
Vol 16 (5) ◽  
pp. 1904-1917 ◽  
Author(s):  
Yang Han ◽  
Mingyu Luo ◽  
Changqing Chen ◽  
Aiting Jiang ◽  
Xin Zhao ◽  
...  
Keyword(s):  
Performance Evaluations ◽  
Grid Synchronization ◽  
Three Phase

Impedance-Based Analysis of Grid-Synchronization Stability for Three-Phase Paralleled Converters

2016 ◽  
Vol 31 (1) ◽  
pp. 26-38 ◽  
Author(s):  
Bo Wen ◽  
Dong Dong ◽  
Dushan Boroyevich ◽  
Rolando Burgos ◽  
Paolo Mattavelli ◽  
...  
Keyword(s):  
Grid Synchronization ◽  
Three Phase

scholarly journals A New Synchronization Technique of a Three-Phase Grid Tied Inverter for Photovoltaic Applications

2018 ◽  
Vol 2018 ◽  
pp. 1-13 ◽  
Author(s):  
Mohannad Jabbar Mnati ◽  
Dimitar V. Bozalakov ◽  
Alex Van den Bossche
Keyword(s):  
Pulse Width Modulation ◽  
Digital Circuit ◽  
Phase Voltage ◽  
Grid Voltage ◽  
Synchronization Method ◽  
Grid Synchronization ◽  
Three Phase ◽  
Reference Signals ◽  
Analog And Digital Circuits ◽  
And Control

Three-phase grid synchronization is one of the main techniques of the three-phase grid connected power inverters used in photovoltaic systems. This technique was used to reach the fast and accurate three-phase grid tied inverter synchronization. In this paper a new synchronization method is presented on the basis of integrating the grid voltage two times (line-to-line or phase voltage). This method can be called “double integral synchronization method” (DISM) as it integrates the grid voltage signals two times to generate the reference signals of three-phase photovoltaic inverter currents. DISM is designed and simulated in this paper to operate in both analog and digital circuits of three-phase photovoltaic inverter system with the same topology. The digital circuit design and dsPIC33FJ256GP710A as a microcontroller (the dsPIC33FJ256GP710A with the Explorer 16 Development Board from microchip) was used practically in this paper to generate and control the sine pulse width modulation (SPWM) technique according to DISM for three-phase photovoltaic inverter system. The main advantage for this method (DISM) is learning how to eliminate the integration constant to generate the reference signals without needing any reference signals or truth table, just the line-to-line or phase voltage of grid.

Bifurcation Analysis of the Wound Rotor Induction Motor

2015 ◽  
Vol 25 (12) ◽  
pp. 1550163 ◽  
Author(s):  
R. Salas-Cabrera ◽  
A. Hernandez-Colin ◽  
J. Roman-Flores ◽  
N. Salas-Cabrera
Keyword(s):  
Hopf Bifurcation ◽  
Induction Motor ◽  
Bifurcation Analysis ◽  
Open Loop ◽  
Experimental Results ◽  
Saddle Node Bifurcation ◽  
Saddle Node ◽  
Bifurcation Phenomena ◽  
Three Phase ◽  
The Individual

This work deals with the bifurcation phenomena that occur during the open-loop operation of a single-fed three-phase wound rotor induction motor. This paper demonstrates the occurrence of saddle-node bifurcation, hysteresis, supercritical saddle-node bifurcation, cusp and Hopf bifurcation during the individual operation of this electromechanical system. Some experimental results associated with the bifurcation phenomena are presented.

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