Results 51 to 60 of about 11,868,722 (204)

A New Control Strategy Based Multi Converter UPQC Using Fuzzy Logic Controller to Improve the Power Quality Issues

open access: yesAdvances in Electrical and Electronic Engineering, 2014
A design of multiconverter unified power quality conditioner to improve the power quality issues is presents in this paper. Modified SRF theory and fuzzy logic controller technique are incorporated in this modelling.
Chandra Babu Paduchuri   +2 more
doaj   +1 more source

Model‐Free Predictive Direct Control of Unified Power Quality Conditioner Based on Ultra‐Local Model

open access: yesIET Energy Systems Integration, Volume 7, Issue 1, January/December 2025.
ABSTRACT To enhance the robustness of the unified power quality conditioner (UPQC) with finite control set model predictive control (FCS‐MPC), direct control in the dq coordinate system faces challenges such as complex coordinate transformation, system coupling issue and phase‐locked‐loop delays.
Guifeng Wang   +6 more
wiley   +1 more source

Power Quality Improvement of Distributed Generation Integrated Network with Unified Power Quality Conditioner. [PDF]

open access: yes, 2013
With the increased penetration of small scale renewable energy sources in the electrical distribution network, maintenance or improvement of power quality has become more critical than ever where the level of voltage and current harmonics or disturbances
Khadem, Shafiuzzaman Khan
core   +1 more source

An UPQC Based on Thyristor and Ultra Capacitor

open access: yesKongzhi Yu Xinxi Jishu, 2015
The traditional UPQC(unified power quality conditioner) cannot realize voltage compensation when the system’s power voltage deeply drops or interrupts in a short time. A new type of UPQC was proposed, which was added bidirectional thyristor, ultra energy
REN Lei   +3 more
doaj  

Simulation and experiment of algorithm and circuit design for UPQC

open access: yesAutomatika, 2019
Power quality issues have become one of the most important issue for researchers to concern. In this paper, simulation and experiment of algorithm and circuit design of Unified Power Quality Conditioner (UPQC) are provided. Control algorithm and topology
Mingbo Yang, Tianyuan Tan, Junfeng Hu
doaj   +1 more source

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

open access: yesAin 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   +2 more
doaj   +1 more source

Coordinated Control Method of Re‐Constructable Hybrid Distribution Transformers with DC Mutual Connection for Voltage Sag Compensation

open access: yesIET Power Electronics, Volume 18, Issue 1, January/December 2025.
The proposed ReC‐HDT possesses topology reconfiguration capability, enabling it to adjust its topology based on varying grid requirements. Besides, a coordinated control strategy for the ReC‐HDT within the interconnected system is proposed, significantly expanding the range of voltage sag compensation and enhancing the system's overall utilization. The
Chang Yuan   +5 more
wiley   +1 more source

Power Quality Improvement Using Unified Power Quality Conditioner (UPQC) [PDF]

open access: yes, 2016
The advance use of power electronic devices introduces harmonics in the supply system which creates a problem in the quality of power delivered. Good Power Quality is very much important for our day to day use of appliances in both industrial and ...
Anand , Piyush
core  

Power Quality Enhancement Using Unified Power Quality Conditioner (UPQC) Controlled by Backstepping Controller [PDF]

open access: yes, 2023
Nowadays due to remarkable development in power electronics, the use of non-linear loads has become prominent. These loads draw distorted (non-sinusoidal) currents from the power supply (harmonics generation) resulting in an increase in harmonics ...
Boumous ,Samira   +2 more
core  

Artificial Neural Network–Based Optimization of Solar Photovoltaic and Battery-Integrated Unified Power Quality Conditioner for Microgrid Performance

open access: yesElectrica
The paper represents a new artificial neural network (ANN)-based control strategy for a unified power quality conditioner (UPQC) with a solar photovoltaic (PV) array and battery energy storage system (BESS) to improve power quality in microgrids.
Kamlesh Kumar Bharati   +4 more
doaj   +1 more source

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