Performance of unified power quality conditioner (UPQC) based on fuzzy controller for attenuating of voltage and current harmonics

International Conference on Innovative Technology, Engineering and Sciences 2018

工业技术;自然科学

Almelian, Mohamad Milood^1,2 ; Mohd, Izzeldin I.^1 ; Omran, Mohamed Asghaiyer^1,3 ; Sheikh, Usman Ullah^4

Faculty of Electrical and Electronics Engineering, University Malaysia Pahang (UMP), Pekan, Pahang

26600, Malaysia^1

Department of Electrical and Electronics Engineering, Higher Institute of Sciences and Technology, Mezdah, Libya^2

Faculty of Electrical and Electronics Engineering, Bani Walid, Libya^3

Faculty of Electrical Engineering, Universiti Teknologi Malaysia, UTM Skudai, Johor Johor Bahru

83100, Malaysia^4

关键词: Conventional techniques;    Fuzzy logic controller (FLC);    Home and industrial appliances;    Power quality standards;    Shunt active power filters;    Unified power quality conditioners;    Voltage and current harmonics;    Voltage distortions;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/342/1/012084/pdf
DOI  :  10.1088/1757-899X/342/1/012084

来源: IOP

【 摘 要 】

Power quality-related issues such as current and voltage distortions can adversely affect home and industrial appliances. Although several conventional techniques such as the use of passive and active filters have been developed to increase power quality standards, these methods have challenges and are inadequate due to the increasing number of applications. The Unified Power Quality Conditioner (UPQC) is a modern strategy towards correcting the imperfections of voltage and load current supply. A UPQC is a combination of both series and shunt active power filters in a back-to-back manner with a common DC link capacitor. The control of the voltage of the DC link capacitor is important in achieving a desired UPQC performance. In this paper, the UPQC with a Fuzzy logic controller (FLC) was used to precisely eliminate the imperfections of voltage and current harmonics. The results of the simulation studies using MATLAB/Simulink and Simpower system programming for R-L load associated through an uncontrolled bridge rectifier was used to assess the execution process. The UPQC with FLC was simulated for a system with distorted load current and a system with distorted source voltage and load current. The outcome of the comparison of %THD in the load current and source voltage before and after using UPQC for the two cases was presented.