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

2018 ◽  
Vol 342 ◽  
pp. 012084 ◽  
Author(s):  
Mohamad Milood Almelian ◽  
Izzeldin I Mohd ◽  
Mohamed Asghaiyer Omran ◽  
Usman Ullah Sheikh
Keyword(s):  
Power Quality ◽  
Fuzzy Controller ◽  
Current Harmonics ◽  
Unified Power Quality Conditioner ◽  
Power Quality Conditioner

Unified Power Quality Conditioner Using a Fuzzy Controller

2010 ◽  
Vol 11 (4) ◽  
Author(s):  
Chirag Patel ◽  
Ranjit Mahanty
Keyword(s):  
Mathematical Model ◽  
Dynamic Response ◽  
Power Quality ◽  
Set Theory ◽  
Fuzzy Controller ◽  
Pi Controller ◽  
Linguistic Variable ◽  
Unified Power Quality Conditioner ◽  
Three Phase ◽  
Power Quality Conditioner

The paper presents a three-phase unified power quality conditioner using a fuzzy controller. The fuzzy controller replaces the conventional PI controller in this work. The results obtained through the fuzzy controller are found superior to those obtained through conventional PI controller in terms of dynamic response. This is because of the fact that the fuzzy controller is based on a linguistic variable set theory and does not require a mathematical model of the system. Moreover, the tedious method of tuning the PI controller is not required in case of fuzzy controller. Simulations are carried out using MATLAB/Simulink to validate the theoretical findings.

scholarly journals Significant implication of unified power quality conditioner in power quality problems mitigation

2019 ◽  
Vol 10 (4) ◽  
pp. 2231 ◽  
Author(s):  
Kamrul Hasan ◽  
Muhammad Murtadha Othman ◽  
Nor Farahaida Abdul Rahman ◽  
M. A. Hannan ◽  
Ismail Musirin
Keyword(s):  
Power Quality ◽  
Dynamic Performance ◽  
Voltage Sags ◽  
Significant Implication ◽  
Nonlinear Load ◽  
Current Harmonics ◽  
Unified Power Quality Conditioner ◽  
Power Quality Conditioner ◽  
Grid Side ◽  
Shunt Compensator

<p>This paper presents an analysis of a three-phase unified power quality conditioner (UPQC) in terms of design and performance. A back to back connection of a series compensator and a shunt compensator with a common DC-bus is utilized to build the UPQC model. The series compensator compensates the power quality problems such as grid voltage sags/swells for the grid side. During sag and swell condition, the compensated voltage is injected by the series compensator in phase with the point of common coupling (PCC) or out of phase with PCC. The load current harmonics is compensated by using the shunt compensator. The dynamic performance and  the steady state of the designed model are analyzed by using MATLAB-Simulink under several disturbances such as PCC voltage harmonics, voltage sags/swells and load unbalancing using a nonlinear load. </p>

scholarly journals A Unified Power Quality Conditioner for Power Quality Issue Mitigationer Using Neuro Fuzzy Controller

2021 ◽  
Author(s):  
R. MANIVASAGAM
Keyword(s):  
Power Quality ◽  
Fuzzy Controller ◽  
Optimization Methods ◽  
Control Technique ◽  
Voltage Sag ◽  
Quality Issue ◽  
Unified Power Quality Conditioner ◽  
Neuro Fuzzy ◽  
Voltage Swell ◽  
Power Quality Conditioner

Abstract This manuscript grants a control system for Power Quality (PQ) issues of Unified Power Quality Conditioner (UPQC) based hysteresis controller and augmentation the PQ with the help of numerous optimization methods. In numerous attractive features of UPQC, like voltage sags, voltage swells negative series current and harmonics. Foremost aim of PQ issues is the recompense of the D-FACT devices that origins an undesired effect on bearing. Optimal values for converter of UPQC its presentation can be meaningfully enhanced PQ. This paper discoursed about the UPQC physical process asserts the required meliorate the PQ at DC link integrated. The adaptive control technique for hysteresis developed by the modifying PQ with the use of the UPQC method is also briefly excused. The measurement of voltage sag and swell will be improved and sinusoidal after inoculating current and voltage to the UPQC source current and source voltage. The evaluation results inevitably show the effectiveness of the voltage sag and the voltage swell in the UPQC system based on the Neuro Fuzzy Control (NFC) controller is improved.

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