Results 41 to 50 of about 256 (163)

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

Resolvement Of Power Quality Problems By Unified Power Quality Conditioner (Upqc)

, 2016
In this project presents a Design of a Unified Power Quality conditioner (UPQC) connected to three phase four wire system (3P4W). The neutral of series transformer used in the fourth wire for the 3P4W system. The neutral current that may flow toward transformer neutral point is compensated by using a four-leg voltage source inverter topology for shunt ...
openaire   +2 more sources

Comparative Nature‐Inspired Optimization Algorithms for FOPID Controllers in Battery‐Integrated Solar PV Systems Under Fluctuating Environmental Conditions

International Journal of Photoenergy, Volume 2026, Issue 1, 2026.
Though solar power generation systems (SPGSs) are integral to the modern‐day renewable energy infrastructure, they are strongly influenced by fluctuations in solar irradiance, temperature, and energy storage conditions. This study proposes a comparative optimization framework for better control performance of a battery integrated solar photovoltaic ...
Noorulden Basil, Hamzah M. Marhoon, Abdullah Fadhil Mohammed, Takele Ferede Agajie, Pramita Mishra   +4 more
wiley   +1 more source

An UPQC Based on Thyristor and Ultra Capacitor

Kongzhi 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, JIANG Qirong, WEI Yingdong, TIAN Yusheng   +3 more
doaj  

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

Electrica
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, Sachin, Yogesh Shekhar, Vijay Kumar Tewari, Omveer Singh   +4 more
doaj   +1 more source

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

IET 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, Jinling Ji, Xinxin Zhu, En Fang, Qigang Du, Chao Luo, Zhifang Lin   +6 more
wiley   +1 more source

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

IET 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, Siyu Ding, Ming Ma, Yitong Wu, Baichuan Zhu, Jiacheng Guo   +5 more
wiley   +1 more source

Comprehensive Power Quality Management for Transformerless Unified Power Quality Conditioner Under Multiple Operating Conditions

Shanghai Jiaotong Daxue xuebao
To address the power quality problems caused by power electronic loads, a two-leg topology-based transformerless unified power quality conditioner (TLTT-UPQC) is proposed, which can overcome the volume, weight, and magnetic saturation of power frequency ...
FU Zhe, ZHANG Qi, LIU Yang, WAN Bohao, WANG Ting, SUN Yanfei
doaj   +1 more source

The Voltage Control Strategy of a DC-Link Bus Integrated Photovoltaic Charging Module in a Unified Power Quality Conditioner

Energies, 2019
In order to improve the functionality and efficiency of a unified power quality conditioner (UPQC), a DC-link bus integrated photovoltaic charging module is proposed in a UPQC. It can generate power for essential loads apart from providing energy to a DC-
Fuyin Ni, Zhengming Li, Qi Wang
doaj   +1 more source

Evaluating Disturbance Ride‐Through Capability of Fast Electric Vehicle Charging Stations Using DVshave

IET Power Electronics, Volume 18, Issue 1, January/December 2025.
This paper introduces DVShave, a novel system that integrates an artificial neural network‐based dynamic voltage restorer with peak‐shaving functionality to significantly enhance the resilience and energy efficiency of fast electric vehicle charging stations against various grid disturbances and demand peaks.
Samuel Ngotho, Malabika Basu
wiley   +1 more source