Results 41 to 50 of about 9,717 (249)

Design and Implementation of a New Fast and Efficient MPPT Controller under Different Solar Irradiance Conditions

International Journal of Photoenergy, 2022
The power-voltage (P-V) characteristic curve of solar photovoltaic (PV) systems operating in partial shading conditions (PSC) is nonlinear and has multiple local maximum peak power (LMPP) points, rendering many of the maximum power point tracking (MPPT ...
K. Padmanaban, A. Shunmugalatha, M. S. Kamalesh   +2 more
doaj   +1 more source

A new MPPT control for photovoltaic panels by instantaneous maximum power point tracking

Electrical Engineering in Japan, 2004
AbstractThis paper presents a new maximum power point tracking control for photovoltaic (PV) panels. The control can be categorized into the Perturb and Observe (P&O) method. It utilizes instantaneous voltage ripples at PV panel output terminals caused by the switching of a chopper connected to the panel in order to identify the direction for the ...
Daiki Tokushima, Masato Uchida, Satoshi Kanbei, Hiroki Ishikawa, Haruo Naitoh   +4 more
openaire   +2 more sources

Maximum power point tracking for variable-speed fixed-pitch small wind turbines [PDF]

, 2009
Variable-speed, fixed-pitch wind turbines are required to optimize power output performance without the aerodynamic controls. A wind turbine generator system is operated such that the optimum points of wind rotor curve and electrical generator curve ...
Jovanovic, Milutin, Pak Sing Leung, M. Narayana, Narayana, Mahinsasa, Putrus, Ghanim, M. Jovanovic, Leung, Pak Sing, G. Putrus   +7 more
core   +1 more source

Designed Lewis Acid–Base Passivation for High Performance Perovskite Solar Cells

Advanced Functional Materials, EarlyView.
ABSTRACT Silicon's high cost and long energy payback time remain major barriers to the global expansion of solar power. In contrast, metal–halide perovskites offer abundant, solution‐processable absorbers, and have achieved efficiencies of 25%–30%, positioning them as strong competitors to silicon.
Afna Manaf, Hiba Shahulhameed, Bhabani Sankar Swain, Shengzhong (Frank) Liu, Adel Najar   +4 more
wiley   +1 more source

Maximum Power Point Tracking (MPPT) for a PV Powered Z-Source Inverter

Indian Journal of Science and Technology, 2016
Objectives: A constant voltage maximum power point tracking algorithm based PV powered z-source inverter was examined for varying irradiation and temperature to maximize power output. Method: Maximum power point tracking algorithm applied to photo voltaic system keep the boost converter output constant.
S. Kamalakkannan, D. Kirubakaran
openaire   +1 more source

Self‐Assembled Monolayers in p–i–n Perovskite Solar Cells: Molecular Design, Interfacial Engineering, and Machine Learning–Accelerated Material Discovery

Advanced Materials, EarlyView.
This review highlights the role of self‐assembled monolayers (SAMs) in perovskite solar cells, covering molecular engineering, multifunctional interface regulation, machine learning (ML) accelerated discovery, advanced device architectures, and pathways toward scalable fabrication and commercialization for high‐efficiency and stable single‐junction and
Asmat Ullah, Ying Luo, Stefaan De Wolf
wiley   +1 more source

Rastreador de máxima potência para sistemas fotovoltaicos utilizando o método da impedância característica de conversores estáticos [PDF]

, 2014
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Elétrica, Florianópolis, 2014Este trabalho introduz uma nova técnica de rastreamento do ponto de máxima potência (MPPT) para ...
Zanotti, Jefferson William
core  

An improved genetic algorithm based fractional open circuit voltage MPPT for solar PV systems

Energy Reports, 2023
To extract the maximum power from solar PV, maximum power point tracking (MPPT) controllers are needed to operate the PV arrays at their maximum power point under varying environmental conditions.
Aakash Hassan, Octavian Bass, Mohammad A.S. Masoum   +2 more
doaj   +1 more source

Strengthened Interfacial Coupling Between Self‐Assembled Monolayers and Bulk Heterojunctions Enables Thermally Stable Organic Solar Cells

Advanced Materials, EarlyView.
Molecularly engineered self‐assembled monolayers (SAMs) featuring extended conjugated terminals facilitate superior interfacial coupling with the organic solar cell active layer. By physically anchoring the local morphology, this design suppresses thermal degradation, allowing devices to operate at 85°C for 150 h before degrading to 90% of their ...
Gengxin Du, Zhihong Wang, Songyang Yuan, Wenlin Jiang, Shanchao Ouyang, Chengda Ge, Tian Xia, Yiting Jiang, Nan Zhang, Yidan An, Lingyi Ke, Sai Wing Tsang, Francis R. Lin, Qian Li, Alex K.‐Y. Jen, Xuechen Jiao, Yong Zhang, Hin‐Lap Yip   +17 more
wiley   +1 more source

External Current Source–Based Unilluminated PV Partial Shading Emulation System Verified Through the Hybrid Global Search Adaptive Perturb and Observe MPPT Algorithm

Frontiers in Energy Research, 2022
In this study, a novel PV emulator and the state-of-art learning–based real-time hybrid global search adaptive perturb and observe (P&O) maximum power point tracking (MPPT) algorithm have been presented.
Yidong Wang, Cagfer Yanarates, Zhongfu Zhou   +2 more
doaj   +1 more source