Results 81 to 90 of about 7,054,773 (202)

A fault diagnosis method of hot spots for photovoltaic clusters based on model parameters

open access: yesEnergy Science & Engineering
Utilizing the direct current‐side electrical data resources of the photovoltaic power generation system on the FusionSolar platform, this study investigates the impact of hot spot faults on the output characteristics of photovoltaic strings and proposes ...
Chi Xiaoni   +3 more
doaj   +1 more source

Research on the Strategy of Photovoltaic Grid-connected Generation and Reactive Power Regulation

open access: yesKongzhi Yu Xinxi Jishu, 2013
It designed a photovoltaic (PV) grid-connected power conditioner system integrating grid-connected generation and reactive power regulation , in which the PV grid-connected inverter can provide active power for grid and output reactive power which the ...
ZHAO Xianggui   +3 more
doaj  

A Photovoltaic Fault Diagnosis Method Integrating Photovoltaic Power Prediction and EWMA Control Chart

open access: yesEnergies
The inevitability of faults arises due to prolonged exposure of photovoltaic (PV) power plants to intricate environmental conditions. Therefore, fault diagnosis of PV power plants is crucial to ensure the continuity and reliability of power generation ...
Jun Su   +4 more
doaj   +1 more source

DC‐link voltage stability enhancement in intermittent microgrids using coordinated reserve energy management strategy

open access: yesIET Renewable Power Generation
In recent years, due to its cost effectiveness and environmental advantages, demand for renewable energy resources has grown and their contributions to grid power has therefore increased while requiring effective frequency and voltage regulation. DC link
Saqif Imtiaz   +5 more
doaj   +1 more source

Optimal Power Flow and Short-Circuit Analysis in Hybrid Renewable-Powered DC Microgrids using Modular Multilevel Converters

open access: yesMehran University Research Journal of Engineering and Technology
Modern power systems require an increased use of renewable energy, which drives the acceptance of DC microgrids because they reduce conversion needs and directly support battery storage for improved performance. Combining several renewable energy sources
Saeed Ahmad Rana   +2 more
doaj   +1 more source

Flexible Predictive Direct Power Control for Distributed Generation Converters During Asymmetrical Grid Faults

open access: yes
The reliable operation of grid-connected distributed generation converters is challenged by severe unbalanced conditions and stringent fault ride-through requirements.
Abdelhakim Saim   +4 more
core   +1 more source

Performance Evaluation of Wave Energy Converters: A Data-Driven Case Study Using Supervised Learning and Stochastic Frontier Analysis

open access: yesIEEE Access
The commercial viability of Wave Energy Converters (WECs) depends heavily on reducing operation and maintenance costs by accurately detecting mechanical degradation, such as Power Take-Off (PTO) failures. A major challenge in the current state of the art
Daniel Costa, Alexandre Lucas
doaj   +1 more source

Arcing High Impedance Fault Detection Using Real Coded Genetic Algorithm

open access: yes, 2007
Safety and reliability are two of the most important aspects of electric power supply systems. Sensitivity and robustness to detect and isolate faults can influence the safety and reliability of such systems.
Zamanan, N.   +2 more
core   +1 more source

Real-time warning for turn-to-turn short-circuits in PMSM based on instantaneous power

open access: yes机车电传动
Permanent magnet synchronous motors (PMSM) have garnered widespread application in rail transit, wind power generation, industrial drives, electric vehicles, and other fields, due to their advantages such as compact size, high efficiency, and high power ...
YANG Fan   +4 more
doaj  

Control strategies for a wave energy converter connected to a hydraulic power take-off

open access: yes, 2011
Among the various types of wave energy converters currently being developed, heaving point absorbers are one of the simplest and most promising concepts.
F. Salcedo   +13 more
core   +1 more source

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