Results 31 to 40 of about 311 (98)

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  

Artificial ecosystem optimized neural network controlled unified power quality conditioner for microgrid application

Energy Informatics, 2023
Unified power quality conditioner is chiefly employed to offer power quality improvement, especially in grid connected mode of operation in microgrid applications.
Rajeev Ratnakaran, Gomathi Bhavani Rajagopalan, Asma Fathima   +2 more
doaj   +1 more source

Voltage sag compensation strategy for unified power quality conditioner with simultaneous reactive power injection

Journal of Modern Power Systems and Clean Energy, 2016
Unified power quality conditioner (UPQC) holds the capability of solving power quality problems, especially shows good performance in the voltage sag compensation.
Yunfei Xu, Xiangning Xiao, Yamin Sun, Yunbo Long   +3 more
doaj   +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

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

A Novel IUPQC for Multi-Feeder Systems Using Multilevel Converters With Grid Integration of Hybrid Renewable Energy System

IEEE Access, 2020
This paper presents a novel topology of interline unified power quality conditioner (IUPQC) for multi-bus/multi-feeder systems, capable of compensating both voltage and current imperfections simultaneously for power quality improvement.
T. Surya Prakash, P. Satish Kumar, R. P. S. Chandrasena   +2 more
doaj   +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

ANN based control scheme for a three-level converter based unified power quality conditioner

Journal of Electrical Systems and Information Technology, 2018
Unified power quality conditioner (UPQC) has been used convincingly to mitigate most of the electric power quality issues. Conventional control schemes such as Synchronous Reference Fame (SRF) and P-Q theory based control involves abc to/from dq/αb ...
Sudheer Vinnakoti, Venkata Reddy Kota
doaj   +1 more source

Intelligent unified power quality conditioner based photovoltaic to improve grid reliability and mitigate power quality issues

Electrical engineering & Electromechanics
Problem. Electrical distribution networks are plagued by power quality problems, which have a negative impact on sensitive electrical loads. These problems include reactive current, low power factor on the load side, and voltage harmonics, voltage sags ...
I. I. Alnaib, A. N. Alsammak
doaj   +1 more source

Integrated Photovoltaic Inverters Based on Unified Power Quality Conditioner with Voltage Compensation for Submarine Distribution System

Energies, 2018
This paper proposes a multi-functional Photovoltaic (PV) inverter based on the Unified Power Quality Conditioner (UPQC) configuration. Power quality improvement is a difficult issue to solve for isolated areas or islands connected to the mainland through
Desmon Petrus Simatupang, Jaeho Choi
doaj   +1 more source