Results 51 to 60 of about 11,868,797 (285)

Power quality enhancement of grid-integrated solar photovoltaic system with unified power quality conditioner

Electrical engineering & Electromechanics
Introduction. To enhance the quality of power and ensure a consistent electricity supply, this study proposes the utilization of a unified power quality conditioner (UPQC) system integrated with solar photovoltaic (PV) technology. The innovation involves
M. Manohara, S. Muthukaruppasamy, R. Dharmaprakash, S. Sendilkumar, D. Dattatreya Bharadwaj, E. Parimalasundar   +5 more
doaj   +1 more source

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

Power Quality Improvement Using Interline Unified Power Quality Conditioner

CVR Journal of Science and Technology, 2011
Power quality has become an important factor in power systems, for consumer and household appliances with proliferation of various electric/ electronic equipment and computer systems. The main causes of a poor power quality are harmonic currents, poor power factor, supply voltage variations, etc.
openaire   +2 more sources

Establishing an Apheresis Medicine Program in a Resource‐Constrained Setting: A 5‐Year Experience From Lagos, Nigeria

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Establishing a comprehensive apheresis medicine program in a resource‐constrained setting presents significant structural, financial, and logistical challenges. Despite the growing clinical importance of apheresis services globally, published experience from sub‐Saharan Africa remains sparse.
Folasade Adelekan‐Popoola, Shakirat Gold‐Olufadi, Olufunto Olufela Kalejaiye, Abdullateef Ogala, Rasheed A. Balogun   +4 more
wiley   +1 more source

Analisis Penggunaan Unified Power Quality Conditioner (UPQC) pada Sistem Daya Elektrik

Jurnal EECCIS (Electrics, Electronics, Communications, Controls, Informatics, Systems), 2014
Paper ini berisi tentang analisis dan pemodelan Unified Power Quality Conditioner (UPQC) y a n g digunakan untuk memperbaiki profil tegangan di PT. Kutai Timber indonesia (KTI) akibat penurunan tegangan sesaat (voltage sag) karena adanya gangguan tem ...
Rachmadi Setiawan, Hadi Suyono, Harry Soekotjo Dachlan   +2 more
doaj   +1 more source

Comparative Evaluation of Hemodiafiltration, Hemoperfusion, and Standard Hemodialysis on Efficacy, Inflammatory Control, Dialysis Adequacy, and Safety in End‐Stage Renal Disease: A Prospective Observational Study

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Chronic micro‐inflammation in patients with end‐stage renal disease (ESRD) is a significant driver of cardiovascular complications and diminished quality of life. While standard hemodialysis (SHD) effectively manages small‐molecule clearance, its ability to remove medium‐to‐large uremic toxins—the primary catalysts of systemic ...
Hongwei Zuo, Weisi Dai, Jie Mao, Mei Ye, Xingshan Lu, Xiaocui Zhang   +5 more
wiley   +1 more source

Hybrid fuzzy back-propagation control scheme for multilevel unified power quality conditioner

Ain Shams Engineering Journal, 2018
To increase the lifetime and performance of equipment in utility distribution systems, the enhancement of power quality is essential. In this paper, to enhance the power quality, we present the design of a hybrid fuzzy back-propagation control scheme for
V. Veera Nagireddy, Venkata Reddy Kota, D.V. Ashok Kumar   +2 more
doaj   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Enhancing Power Quality with PDO-FOPID Controller in Unified Power Quality Conditioner for Grid-Connected Hybrid Renewables

Nigerian Journal of Technological Development, 2023
Addressing the pressing research problem of power fluctuations and grid harmonics in the integration of renewable energy, our proposed control strategy utilizes the Prairie Dog Optimization Fractional Order Proportional Integral Derivative (PDO-FOPID ...
NAGARAJU SAMALA, Chandramouli Bethi
doaj  

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