Title of article
LDO Optimization with Evolutionary Neural Network
Author/Authors
Jahangiri, Mahdieh Department of Electrical Engineering - Islamic Azad University - South Tehran Branch , Farrokhi, Ali Department of Electrical Engineering - Islamic Azad University - South Tehran Branch , Amirabadi, Amir Department of Electrical Engineering - Islamic Azad University - South Tehran Branch
Pages
12
From page
53
To page
64
Abstract
As grid-connected Photovoltaic (PV) based inverters are being used more, these systems play a more important role in the electricity generation by distributed power generators. Power injection to the grid needs to meet predefined standards.In order to meet the harmonics requirement of standards, they need an output filter. The connection through an LCL filter offers certain advantages, but it also brings the disadvantage of having a resonance frequency.LCL filter can easily help the system to satisfy these requirements but also introduce a resonance peak which makes the system control a challenging task. In this paper, a three-level Neutral Point Clamped (NPC) inverter is connected to the grid through an LCL filter. The injected current of the inverter is controlled using Proportional-Resonant (PR) controllers. The resonant peak of the filter is also damped using capacitor current feedback. A systematic mathematical design procedure for controller and filter capacitor current feedback coefficients is investigated in details. Simulations are carried out in MATLAB/Simulink environment and results depict suitable performance of the system with designed parameters
Keywords
LCL Filter , Active Damping , PR Controller , NPC Inverter
Journal title
Signal Processing and Renewable Energy
Serial Year
2020
Record number
2533786
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