scholarly journals Current mode control of single phase grid tie inverter with anti-islanding

2021 ◽  
Vol 12 (1) ◽  
pp. 241
Author(s):  
Sanjay Lakshminarayanan ◽  
Kiran Kumar B M ◽  
S. Nagaraja Rao ◽  
Pranupa S.
Keyword(s):  
Single Phase ◽  
Frequency Control ◽  
Current Mode ◽  
Constant Frequency ◽  
Grid Voltage ◽  
Control Techniques ◽  
Current Mode Control ◽  
Mode Control ◽  
Average Current ◽  
Hysteresis Control

The aim of this paper is to explore the use of various current mode control (CMC) techniques to design a single phase grid tie inverter integrated with anti-islanding protection. Three types of CMC techniques have been discussed, namely current hysteresis control (CHC), constant frequency control (CFC) and average current mode control (ACMC). The performance of the grid tie inverter in the event of grid voltage failure is also studied to help install an anti-islanding mechanism. The proposed control techniques shall eliminate the use of Phase locked loop (PLL) control as the current reference is generated from the grid voltage itself. All three current mode control techniques of an inverter have been simulated in MATLAB/Simulink to evaluate the performance of the designed inverter. The simulated results show a current THD of less than 5% in all three methods and a good anti-islanding response.

Design and Implementation of Single Phase AC-DC Buck-Boost Converter for Power Factor Correction and Harmonic Elimination

2016 ◽  
Vol 7 (3) ◽  
pp. 1004
Author(s):  
Damodaran Jayahar ◽  
R. Ranihemamalini ◽  
K. Rathnakannan
Keyword(s):  
Power Factor ◽  
Single Phase ◽  
Power Factor Correction ◽  
Current Mode ◽  
Pi Controller ◽  
Boost Converter ◽  
Current Mode Control ◽  
Mode Control ◽  
Average Current ◽  
Average Current Mode Control

<p class="Abstract"><span>This paper discusses the Power Factor Correction (PFC) for single phase ACDC Buck-Boost Converter (BBC) operated in Continuous Conduction Mode (CCM) using inductor average current mode control. The proposed control technique employs Proportional-Integral (PI) controller in the outer voltage loop and the Inductor Average Current Mode Control (IACMC) in the inner current loop for PFC BBC. The IACMC has advantages such as robustness when there are large variations in line voltage and output load. The PI controller is developed by using state space average model of BBC. The simulation of the proposed system with its control circuit is implemented in MatLab/Simulink. The simulation results show a nearly unity power factor can be attained and there is almost no change in power factor when the line frequency is at various ranges. Experimental results are provided to show its validity and feasibility. <br />Keyword</span></p>

Nonlinear Dynamics and Bifurcation Analysis of a Boost Converter for Battery Charging in Photovoltaic Applications

2014 ◽  
Vol 24 (11) ◽  
pp. 1450142 ◽  
Author(s):  
Mohammed M. Al-Hindawi ◽  
Abdullah Abusorrah ◽  
Yusuf Al-Turki ◽  
Damian Giaouris ◽  
Kuntal Mandal ◽  
...  
Keyword(s):  
Current Mode ◽  
Solar Irradiation ◽  
Nonsmooth Dynamics ◽  
Pv Systems ◽  
Current Mode Control ◽  
Mode Control ◽  
Pv Panel ◽  
Voltage Variation ◽  
Average Current ◽  
Average Current Mode Control

Photovoltaic (PV) systems with a battery back-up form an integral part of distributed generation systems and therefore have recently attracted a lot of interest. In this paper, we consider a system of charging a battery from a PV panel through a current mode controlled boost dc-dc converter. We analyze its complete nonlinear/nonsmooth dynamics, using a piecewise model of the converter and realistic nonlinear v–i characteristics of the PV panel. Through this study, it is revealed that system design without taking into account the nonsmooth dynamics of the converter combined with the nonlinear v–i characteristics of the PV panel can lead to unpredictable responses of the overall system with high current ripple and other undesirable phenomena. This analysis can lead to better designed converters that can operate under a wide variation of the solar irradiation and the battery's state of charge. We show that the v–i characteristics of the PV panel combined with the battery's output voltage variation can increase or decrease the converter's robustness, both under peak current mode control and average current mode control. We justify the observation in terms of the change in the discrete-time map caused by the nonlinear v–i characteristics of the PV panel. The theoretical results are validated experimentally.

Average Current-Mode Control of PWM A-Source Converter

2018 ◽  
Author(s):  
Agasthya Ayachit ◽  
Mojtaba Forouzesh ◽  
Yam P. Siwakoti ◽  
Marian. K. Kazimierczuk ◽  
Frede Blaabjerg
Keyword(s):  
Current Mode ◽  
Current Mode Control ◽  
Mode Control ◽  
Average Current ◽  
Average Current Mode Control
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