Results 41 to 50 of about 336 (183)

Battery‐supported unified power quality controller for small hydro‐based isolated power generation

IET Renewable Power Generation, 2021
In this paper, a battery‐supported unified power quality controller (UPQC) for a small hydro‐based isolated power generation is investigated as a voltage and frequency controller.
Sachin Tiwari, Seema Kewat, Bhim Singh, Chandrakala Devi Sanjenbam   +3 more
doaj   +1 more source

Frequency Control of Renewable‐Based Microgrids With Storage Subsystems Using an Improved Exponential Distribution Optimizer

International Journal of Energy Research, Volume 2026, Issue 1, 2026.
This article introduces an advanced optimization‐based control framework for a hybrid microgrid (MG) system that includes renewable energy sources and energy storage components. An optimal controller is designed by tuning its parameters through an improved exponential distribution optimizer (IEDO), aimed at addressing the load frequency control (LFC ...
Ali S. Aljumah, Mohammed H. Alqahtani, Ahmed R. Ginidi, Abdullah M. Shaheen, Cheng Du   +4 more
wiley   +1 more source

Power Quality Enhancement in Grid‐Connected Photovoltaic Systems Using Hybrid Harbor Seal Whiskers Optimization and Interpretable Generalized Additive Neural Networks

International Transactions on Electrical Energy Systems, Volume 2026, Issue 1, 2026.
The integration of solar energy into modern power grids supports sustainability and energy efficiency but also introduces power quality (PQ) challenges such as harmonic distortion, voltage sag, swell, and fluctuations. In order to reduce PQ problems in renewable energy systems (RESs), this research proposes a novel hybrid control strategy that combines
M. Hariprabhu, C. Kumar, T. Dharma Raj, Sourav Barua, Mario Ponce-Silva   +4 more
wiley   +1 more source

Optimization of solar PV–UPQC performance using enhanced IPQ theory with DNN technique

Franklin Open
Dispersed power systems powered by renewable energy sources such as wind and solar often face significant power quality challenges. To mitigate these issues in microgrid systems, specialized power equipment like D-STATCOM, UPQC, UPS, TVSS, and DVR are ...
Sravani Mangalapuri, V.S. Sobhan Polamraju, Chandra Babu Naidu Paruchuri   +2 more
doaj   +1 more source

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

Star-Hexagon Transformer Supported Upqc

, 2011
{"references": ["E. W. Gunther and H. Mehta, \"A survey of distribution system power\nquality\", IEEE Trans. On Power Delivery, vol.10, No.1, pp.322-329,\nJan.1995.", "A. C. Liew, \"Excessive neutral current in three-phase fluorescent\nlighting circuits,\" IEEE Trans. Ind. Appl., vol.25, no.4, pp.776-\n782.Jul./Aug. 1989.", "T. M.
Yash Pal, A.Swarup, Bhim Singh
openaire   +3 more sources

Analysis of the Features of a UPQC to Improve Power Quality in Smart Grids [PDF]

, 2013
An UPQC (Unified Power Quality Conditioner) is an equipment composed by two active conditioners operating in a combined way. One of the active conditioners is connected in series with the electrical power system, allowing the compensation of problems in the system voltages.
J. G. Pinto 0001, Carlos Couto, João Luiz Afonso   +2 more
openaire   +4 more sources

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

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