Implementation of a single-phase discrete derivative based AC-grid synchronization unit with programmable logic

2016 ◽  
Author(s):  
Ilya Galkin
Keyword(s):  
Single Phase ◽  
Programmable Logic ◽  
Grid Synchronization ◽  
Discrete Derivative ◽  
Synchronization Unit

scholarly journals Accurate Voltage Parameter Estimation for Grid Synchronization in Single-Phase Power Systems

2016 ◽  
Vol 16 (3) ◽  
pp. 1067-1075 ◽  
Author(s):  
Zhiyong Dai ◽  
Hui Lin ◽  
Yanjun Tian ◽  
Wenli Yao ◽  
Hang Yin
Keyword(s):  
Parameter Estimation ◽  
Power Systems ◽  
Single Phase ◽  
Grid Synchronization

scholarly journals ANN Fed High Gain Luo Converter based Reduced Switch Multilevel Inverter for Single Phase Network Bridged PV Arrangement

2019 ◽  
Vol 9 (2S4) ◽  
pp. 604-610
Keyword(s):  
High Frequency ◽  
Single Phase ◽  
Closed Loop ◽  
High Gain ◽  
Maximum Energy ◽  
Multilevel Inverter ◽  
Solar Irradiation ◽  
Pv System ◽  
Pv Systems ◽  
Grid Synchronization

In the present scenario photovoltaic (PV) systems feature resonant interest in the recent researches. The amount from the PV frame is highly oscillated due to temperature variation. In this proposed work, the ANN based MPPT algorithm extracts maximum energy from the PV system by benefit of high gain DC-DC Luo converter, the Luo converter produced voltage is given to the single phase grid through reduced switch seven level inverter. The proposed seven level inverter is controlled by high frequency technique multicarrier modulation technique. The PI controller based closed loop grid synchronization is implemented for solving the power quality issues. The multilevel inverter reduce the total harmonics distortion in the output AC voltage waveform. The developed work is carried out using Matlab software-based simulation with various solar irradiation and degree. Keywords: Artificial Neural Network

scholarly journals Potency of PR controller for multiple harmonic compensation for a single-phase grid connected system

2020 ◽  
Vol 11 (3) ◽  
pp. 1491
Author(s):  
D Sattianadan ◽  
Soumen Gorai ◽  
G. R. Prudhvi Kumar ◽  
S. Vidyasagar ◽  
V. Shanmugasundaram
Keyword(s):  
Single Phase ◽  
Harmonic Distortion ◽  
System Stability ◽  
Phase System ◽  
Pv System ◽  
Lcl Filter ◽  
Grid Synchronization ◽  
Harmonic Content ◽  
Wide Range ◽  
Pr Controller

<p><span lang="EN-US">Harmonics and grid synchronization are one of the major problems faced when dealing with a single-phase system. The development of technology in the PV system makes the consumer to use it in a wide range. The power transferred from PV to grid needs DC to AC conversion process which is done by static devices operating with the higher frequencies that causes the harmonics in the grid connected system. The main aim of the paper is to implement grid synchronization and reduce total harmonic distortion in a single-phase grid connected system. The design of LCL filter is addressed in this paper which depends on current ripple, filter size and switching ripple attenuation.  In order to account the harmonic content, the FFT analysis is made both in analysis and Matlab Simulink. The Proportional Resonant (PR) controller is developed and work along with LCL filter for reducing the harmonic content. The stability of the system with PR is analyzed using root locus and bode plots and results are compared with PI controls. The result shows that PR controller performs better compared to the PI controller for reducing the harmonic content present in the single-phase system and for improving the system stability.</span></p>

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