Page 72 - 2024-Vol20-Issue2
P. 72
Received: 4 April 2023 | Revised: 10 May 2023 | Accepted: 28 May 2023
DOI: 10.37917/ijeee.20.2.6 Vol. 20 | Issue 2 | December 2024
Open Access
Iraqi Journal for Electrical and Electronic Engineering
Original Article
Design a Power System of 1760W Based on a Twin
Inverter and a Fuzzy Logic Controller
Samhar Saeed Shukir*
Electrical Department, Technical Institute-Kut, Middle Technical University, Baghdad, Iraq
Correspondance
*Samhar Saeed Shukir
Electrical Department, Technical Institute-Kut,
Middle Technical University, Baghdad, Iraq
Email: samharalwandi@gmail.com
Abstract
The increasing demand for electricity due to population expansion has led to frequent interruptions in electrical power,
so there are backup power lines everywhere, especially in the sectors of education, health, banking, transportation and
communications. DC sources are beginning to become widely spread in terms of low maintenance requirements, no
need for refueling, and no pollutant emission in these institutions. The problems of DC systems are; losses in DC system
components, and change in output voltage as loads change. This research presents a power system that generates 1760W
AC power from batteries bank, the system consists of a twin inverter to reduce losses in switches and filters, and thus
improving the efficiency and the power factor of the system, and fuzzy logic controllers to regulate the output voltage of
the converter and inverter. Modeling and simulation in MATLAB / Simulink showed obtaining a constant load voltage
with acceptable values of total harmonics distortion (THD) under different conditions of loads and batteries.
Keywords
Synchronous boost converter, Twin inverter, Fuzzy logic controller, Gaussian membership functions, Total harmonics
distortion(THD).
I. INTRODUCTION introduced Z-source inverter, Henago [3] presented using se-
ries/parallel switches DC voltage source inverter, Sandeep [4]
Among the most important reasons that lead to power out- established neutral-point nine level inverter, Kim [5] presented
ages: the amount of electric power generation is insufficient two-stage three-level grid-connected photovoltaic inverter,
to cover the increasing demand, especially in the summer, the Kangarlu [6] introduced cascaded multilevel inverter using
increase in voltage drop in transmission lines due to high tem- series connection of sub-multilevel inverter, Le [7] presented
peratures, and the absence of energy quality improvement sys- six level inverter topology for medium voltage applications.
tems such as; Static Synchronous Compensator (STATCOM), PI controller, ANN(artificial neural network), Fuzzy logic con-
Dynamic Voltage Restorer (DVR), Unified Power Flow Con- troller, Fuzzy neural controller, PWM, SPWM, and SVPWM
troller (UPFC), Active Filter (AF), and Passive Filter (PF), techniques have been used to get a stable output voltage under
plus a lack of diverse power sources and a total reliance on fos- different load conditions with minimum values of the total
sil fuels for electric power generation. Some consumers prefer harmonics distortion (THD), and the researchers focused on
to use direct current sources such as solar panels and batteries, reducing switches losses and establishing a transformer less
which are quiet and have low maintenance requirements, and inverter to reduce the size and the weight of the system [8].
due to the frequent breakdowns of diesel generators and the This research focuses on obtaining a power system with a
need for fuel. A large number of papers have been reported in stable voltage under different load and batteries conditions
the literature of converting DC to AC systems. Babaei [1] pre- with a minimum values of the THD and reducing losses in
sented single phase cascaded multi - level inverter, Ellaban [2]
This is an open-access article under the terms of the Creative Commons Attribution License,
which permits use, distribution, and reproduction in any medium, provided the original work is properly cited.
©2024 The Authors.
Published by Iraqi Journal for Electrical and Electronic Engineering | College of Engineering, University of Basrah.
https://doi.org/10.37917/ijeee.20.2.6 |https://www.ijeee.edu.iq 68