Results 21 to 30 of about 256 (163)

A 3D-Space Vector Modulation Algorithm for Three Phase Four Wire Neutral Point Clamped Inverter Systems as Power Quality Compensator

Energies, 2017
A Unified Power Quality Conditioner (UPQC) is designed using a Neutral Point Clamped (NPC) multilevel inverter to improve the power quality. When designed for high/medium voltage and power applications, the voltage stress across the switches and harmonic
Palanisamy Ramasamy, Vijayakumar Krishnasamy   +1 more
doaj   +1 more source

Evaluation of Reduced-Switch Seven-Level Converter-Based upqc with Hybrid Fuzzy-Feedforward Neural Network Algorithm

Brazilian Archives of Biology and Technology
To improve the performance of end-user equipment in an electric utility distribution network, it is necessary to improve power quality (PQ). This paper presents PQ improvement in electric distribution network using seven-level five switch converter based
Veera Nagi Reddy Varampati, Venkata Reddy Kota, Ashok Kumar Devarasetty Venkata   +2 more
doaj   +1 more source

Empirical analysis of power quality using UPQC with hybrid control techniques

Results in Engineering, 2023
The Unified Power Quality Conditioner (UPQC), composed of both parallel active filters (PAF) and series active filters (SAF), recognized as a crucial device for enhancing the overall power quality of the system.
Shawon Das, H.M. Ishrak, Md. Mahadi Hasan, Md Ahsan Kabir   +3 more
doaj   +1 more source

Simplified Control Method for Unified Power Quality Conditioner (UPQC)

RE&PQJ
Unified Power Quality Conditioner (UPQC) for harmonic elimination and simultaneous compensation of voltage and current, which improves the power quality offered for other harmonic sensitive loads. UPQC consist of combined series active power filter that compensates voltage harmonics of the power supply, and shunt active power filter that compensates ...
ÖZDEMİR, ENGİN, Kesler, Metin
openaire   +2 more sources

Fuel cell integrated unified power quality conditioner for voltage and current reparation in four-wire distribution grid

IET Smart Grid, 2018
Electrical and electronic devices, when exposed to one or more power quality problems, are prone to failure. This study aims to enhance the quality of power in three-phase four-wire distribution grid using fuel cell integrated unified power quality ...
Chinnayan Karuppaiyah Sundarabalan, Yeseswini Puttagunta, Vedhamoorthy Vignesh   +2 more
doaj   +1 more source

Unified Power Quality Conditioner Performance based on Multi-level Inverter Topologies using Intelligent Controllers

Algerian Journal of Signals and Systems, 2022
This paper presents unified power quality conditioner (UPQC) system based on three-level neutral point clamped (NPC) using Fuzzy and ANN controllers. The proposed UPQC is able to mitigate source current harmonics and compensate all voltage disturbances.
Salim CHENNAI
doaj   +1 more source

Enhancement of Power Quality using Fast Acting Unified Power Quality Conditioner (UPQC)

International Journal of Recent Technology and Engineering (IJRTE), 2019
The Unified Power Quality Conditioner (UPQC) is the most flexible solution for all power quality problems. The UPQC is one of the APF family members where shunt and series APF functionalities are integrated together to achieve superior control over several power quality problems simultaneously.
Vipin Kumar Mishra*, Dr. Ritula Thakur
openaire   +1 more source

AI‐Driven Optimization Techniques for Power Quality Improvement in Microgrids: Trends, Techniques, and Future Directions

Energy Science &Engineering, Volume 14, Issue 1, Page 583-610, January 2026.
Decentralized energy systems are gaining momentum, and microgrids have become a vital component of the modern power landscape. Yet, maintaining power quality within these systems presents ongoing challenges due to the presence of nonlinear loads, variable renewable energy sources, and frequent switching operations.
Mahnoor Zahid, Hafiz Mudassir Munir, Mohammad Adeel, Fares Suliaman Alromithy, Mohammad R. Altimania, Ievgen Zaitsev   +5 more
wiley   +1 more source

Effective Renewable Source Integration using Unified Power Quality Conditioner with Power Quality Enhancement in Three Phase System

MATEC Web of Conferences, 2018
This paper proposes a modified control strategy for unified Power Quality conditioner to alleviate voltage and current abnormalities in three phase system. Renewable source integration and nonlinear loads depreciates Power Quality of the system.
Suresh P., Gowri Manohar T.
doaj   +1 more source

Analytical Frameworks and Theories of Electric Power in Non‐Linear Circuits

IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.
Based on the challenges of distorted currents and non‐linear components in modern power grids, this article reviews seminal electrical power theories that seek to generalize the traditional definitions of active, reactive, and apparent power. It provides a detailed analysis of their mathematical foundations, practical implementation, and validity.
Rafael Escudero, Luis Ibarra
wiley   +1 more source