نتایج جستجو برای: unified power quality conditioner upqc

تعداد نتایج: 1269002  

2017
Palanisamy Ramasamy Vijayakumar Krishnasamy

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 content in the output voltage are increased. A 3-phase 4-wire NPC inverter system is developed as Power Quality Conditioner using an effectual...

2016
Fuyin Ni Zhengming Li

Aiming at the micro-grid deteriorating the distributed network power quality for its features like voltage fluctuation and intermittent, unified power quality conditioner (UPQC) is the most effective device for power quality treatment. The voltage sag detection of UPQC based on PI with RBF (Radial Basis Function) neural network controller is put forward in the paper. The UPQC topology which inc...

2012
Yash Pal A. Swarup B. Singh

In this paper, a simplified control algorithm based on unit vector template generation (UVTG) is proposed for a stardelta supported three-phase four-wire (3P-4W) unified power quality conditioner (UPQC) topology for the improvement of different power quality problems. Different topologies reported in literature for 3P-4W UPQC use active compensation for the mitigation of source neutral current ...

2016
P. Selvan R. Senthil Kumar Senthil Kumar

Power quality is one of major concerns in the present area. It has become important, especially, with the introduction of sophisticated devices, whose performance is very sensitive to the quality of power supply that results in a failure of end use equipment’s. One of the major problems dealt here is the voltage sag. To solve this problem, custom power devices are used. One of those devices is ...

2012
Yash Pal A. Swarup Bhim Singh

Abstract: In this paper, a new topology is developed for a three-phase four-wire (3P4W) distribution system utilizing a zig-zag transformer along with three-phase threewire (3P3W) Unified Power Quality Conditioner (UPQC).In this proposed topology the neutral point of the star connected transformer, used for the connection of series active power filter (APF) of 3P3W UPQC, is utilized as a fourth...

Journal: :AL Rafdain Engineering Journal 2022

The power quality (PQ) is a major issue for both electrical utilities and their customers. nonlinear loads cause PQ problems like current harmonics, voltage frequency deviation, sag swell. A unified conditioner (UPQC) utilized in this research to minimize these problems. UPQC made up of two active filters (APFs), one which connected the line series other parallel. Unit Vector Template Generatio...

Journal: : 2023

This suggested research work provided a distributed generator-based unified power quality conditioner with decreased rating and star-connected transformer as means of enhancing quality. The (UPQC), Y-connected transformer, an LC filter are all included in this work. When the source voltage is out balance, hybrids approach greatly enhance UPQC performance. that here intended to correct issues cu...

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