Results 31 to 40 of about 11,444 (50)

Intelligent Reconfigurable Photovoltaic System

Energies, 2021
The global maximum power point tracking of a PV array under partial shading represents a global optimization problem. Conventional maximum power point tracking algorithms fail to track the global maximum power point, and global optimization algorithms do
Ekaterina Engel, Igor Kovalev, Nikolay Testoyedov, Nikita E. Engel   +3 more
doaj   +1 more source

Photovoltaic frequency regulation control optimization strategy based on equivalent inertia identification

Xi'an Gongcheng Daxue xuebao, 2022
A large number of photovoltaic grid-connected operation will cause the decline of system frequency response performance, and the identification of system time-varying inertia is helpful for photovoltaic to participate in the setting of frequency ...
ZHU Jianjun, SUN Yang, CHANG Peng, TANG Bingjie   +3 more
doaj   +1 more source

Photovoltaic Equalizer Based on Single-Input Multi-Output Push-Pull Converter

Xibei Gongye Daxue Xuebao, 2020
Component mismatch often happens in the module-series photovoltaic system(including centralized, string, multi-strings PV system) due to partial shadowing, which causes a large loss of power generation. Photovoltaic equalizer can process the differential

doaj   +1 more source

Model Based Study of Crop Evapotranspiration under Canopy Shading

Agronomy, 2019
California has some of the key agricultural regions in the United States. One of these key regions, San Joaquin Valley, frequently experiences severe droughts leading to shortage of irrigation water.
Qiang Yu, Krishna Shah, Dong Wang, Yanbao Ma, Zhifeng Wang   +4 more
doaj   +1 more source

Optimal Allocation of Fault Current Limiter in MMC-HVDC Grid Based on Transient Energy Flow

CSEE Journal of Power and Energy Systems, 2023
Meiqin Mao, Hui Lu, Dejian Cheng, Zhuang He   +3 more
doaj   +1 more source

Off-grid photovoltaic system for illumination

Research in Agricultural Engineering, 2015
The off-grid photovoltaic (PV) system with batteries and with the LED light source was constructed and tested in in laboratory conditions. The PV system is used for emergency illumination and it is independent of the electric grid.
P. Kouřím, M. Libra, V. Poulek
doaj   +1 more source

Cyber-Enabled Intelligence Control and Security Optimization for Complex Microgrid Networks Transient Frequency Stability Analysis of Power Systems considering Photovoltaic Grid Connection

Complexity, 2020
In view of the photovoltaic grid-connected power system, the transient frequency stability of the system is analyzed in this paper. First, the photovoltaic grid-connected power system was modeled and analyzed.
Jun Wu, Xiangyu Xing, Chen Wu, Baolin Li, Wei Huang, Peiying Gan, Hui Zhou   +6 more
doaj   +1 more source

PWM–PFM Hybrid Control of Three-Port LLC Resonant Converter for DC Microgrids

Energies
This article proposes a high-efficiency isolated three-port resonant converter for DC microgrids, combining a dual active bridge (DAB)–LLC topology with hybrid Pulse Width Modulat-Pulse Frequency Modulation (PWM-PFM) phase shift control.
Yi Zhang, Xiangjie Liu, Jiamian Wang, Baojiang Wu, Feilong Liu, Junfeng Xie   +5 more
doaj   +1 more source

An improved IPT-PLL technology for single-phase grid-connected inverters in complex power grid conditions

Scientific Reports
Aiming at the common problems of frequency variations and harmonics in complex power grids, an improved inverse Park transform phase locked loop (IPT-PLL) technology for single-phase converters suitable for micro grid systems is proposed. Firstly, in the
Zhang Tao, Dong Dezhi
doaj   +1 more source

Design and simulation of photovoltaic systems using PVsystem software [PDF]

Омский научный вестник
Photovoltaic energy system is one of the most popular and quickly expanding renewable energy sources because of its great availability, enormous potential, and environmental sustainability.
O. V. Kosareva-Volodko, Alilu Sani Maman Kabiru   +1 more
doaj   +1 more source