Results 71 to 80 of about 3,443 (205)

Analysis and Classification of Partial Shading Conditions in Photovoltaic Arrays

Energy Science &Engineering, EarlyView.
This study presents new mathematical models for describing P–V curve extrema under different shading scenarios and applies machine learning classifiers that use features derived from P–V characteristics for accurate fault identification. ABSTRACT With the escalating global transition toward renewable energy, ensuring the operational stability and ...
Hamid Reza Parsa, Mohammad Sarvi
wiley   +1 more source

MPPT Menggunakan Metode Hibrid JST dan Algoritma Genetika Untuk Sistem Photovoltaic

Jurnal EECCIS (Electrics, Electronics, Communications, Controls, Informatics, Systems), 2014
Maximum Power Point Tracking is a method to track power point of an energy source in order to generate maximum power. One of the MPPT method for photovoltaic system is fractional open voltage MPPT.
Gunawan Wibisono, Sholeh Hadi Pramono, Muhammad Aziz Muslim   +2 more
doaj   +1 more source

Improved Power Tracking and Performance Evaluation Using a Tri‐Meta Hybrid DOA–CSA–WOA‐Based MPPT Controller for Standalone PV System

Energy Science &Engineering, EarlyView.
A Tri‐Meta Hybrid DOA–CSA–WOA Maximum Power Point Tracking controller is developed to enhance photovoltaic system performance. The proposed approach achieves higher tracking efficiency, faster convergence, and robust operation under dynamic irradiance and partial shading conditions.
Ali Abbas, Muhammad Farhan, Nouman Safdar, Muhammad Junaid Rabbani, Mohammad Rashed M. Altimania, Waleed Mohammed Abdelfattah, Hafiz Mudassir Munir   +6 more
wiley   +1 more source

Regulating secondary phase of Rb‐based aggregates for efficient and stable perovskite solar cells

FlexMat, EarlyView.
By introducing RbAc into the precursor solution, the crystallization pathway is optimized, excessive lead iodide is eliminated, grain size increases, and defects are passivated in the perovskite films. The obtained perovskite devices exhibit improved power conversion efficiency and operational stability. Abstract Passivating defects in perovskite films
Weiyuan Chen, Chao Wu, Jie Zhang, Lei Zhao, Yikun Hua, Xinyue Song, Wei Hui, Lin Song   +7 more
wiley   +1 more source

Improved Perturb and Observation Method Based on Support Vector Regression

Energies, 2019
Solar energy is the most valuable renewable energy source due to its abundant storage and is pollution-free. The output power of photovoltaic (PV) arrays will vary with external conditions, such as irradiance and temperature fluctuations.
Bicheng Tan, Xin Ke, Dachuan Tang, Sheng Yin   +3 more
doaj   +1 more source

Defect‐Healed Perovskite Quantum Dots for Optoelectronic Applications in Indoor Photovoltaics and Photoplethysmography

Small, EarlyView.
A novel dispersion‐phase defect‐healing strategy using Br‐doped PbS quantum dots (QDs) significantly stabilizes CsPbI3 perovskite (Pe) QDs by passivating internal vacancies. This approach reduces trap‐assisted nonradiative recombination, enabling high‐performance indoor photovoltaics with exceptional stability.
Seon Joong Kim, Junhyeok Park, Byung Ku Jung, Ohhyun Kwon, Sang Heon Lee, Hyung Jin Choi, Seongyong Hong, Min Jong Lee, Soong Ju Oh, Jae Won Shim   +9 more
wiley   +1 more source

Maximum Power Point Tracking (MPPT) using Fuzzy Logic

This paper presents a fuzzy logic control (FLC)-based maximum power point tracking (MPPT) system for photovoltaic (PV) applications implemented using an ESP32 micro-controller and a mobile-based monitoring interface. The proposed method utilizes fuzzy logic to regulate the incremental current in the MPPT algorithm, enabling efficient power extraction ...
Shrikant Vishnu Lahubande, Pragati Chandrakant More, Mansi Salunkhe, Dr. Sukanya Kulkarni   +3 more
openaire   +1 more source

Two‐Stage Power Management for Triboelectric Nanogenerators: Toward Reliable and Efficient Self‐Powered Systems

Safety Science and Technology, EarlyView.
This review systematically outlines two‐stage power management circuits for TENGs, integrating AC–DC and DC–DC conversion to overcome high impedance and unstable output. It highlights strategies for efficient energy extraction and stable power delivery, enabling the development of reliable self‐powered systems for safety monitoring and applications in ...
Jiaxin Hu, Zhiyong Zhang, Haiyang Shao, Tianyu Shi, Baoling Yuan, Ming‐Lai Fu   +5 more
wiley   +1 more source

Tailoring Model‐Based Systems Engineering for Sub‐100 g PlanarSats: A Power‐First View Stack

Systems Engineering, EarlyView.
ABSTRACT This paper addresses how to apply model‐based systems engineering (MBSE) to ultrasmall planar satellites under severe power and resource constraints. PlanarSats are sub‐100‐gram spacecraft built as single printed‐circuit boards where the same surface must host both electronics and solar cells, so power generation, geometry, and component ...
Mehmet Şevket Uludaǧ, Alim Rüstem Aslan   +1 more
wiley   +1 more source

Simple Estimation and Application of the Differential Resistance of a Photovoltaic Module at its Maximum Power Point

IEEJ Transactions on Electrical and Electronic Engineering, EarlyView.
The modulating light irradiation method can estimate the target cell voltage in a working photovoltaic module without electrical contact. This method requires the differential resistances (DRs) of the target cell and module to quantitatively estimate the voltage.
Yasuyuki Kobayashi, Hao Jiang, Tokuma Nagano   +2 more
wiley   +1 more source