A Predictive Control Scheme for Large-Scale Grid-Connected PV System Using High-Level NPC Inverter

2019 ◽  
Vol 45 (3) ◽  
pp. 1685-1701 ◽  
Author(s):  
Abdelbaset Laib ◽  
Fateh Krim ◽  
Billel Talbi ◽  
Abdeslem Sahli
Keyword(s):  
Predictive Control ◽  
Large Scale ◽  
Pv System ◽  
Control Scheme ◽  
Large Scale Grid ◽  
High Level ◽  
Scale Grid

scholarly journals Investigating the Impact of Shading Effect on the Characteristics of a Large-Scale Grid-Connected PV Power Plant in Northwest China

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Yunlin Sun ◽  
Siming Chen ◽  
Liying Xie ◽  
Ruijiang Hong ◽  
Hui Shen
Keyword(s):  
Power Distribution ◽  
Large Scale ◽  
Northwest China ◽  
Pv System ◽  
Shading Effect ◽  
Pv Systems ◽  
Large Scale Grid ◽  
Feasible Solutions ◽  
The Impact ◽  
Scale Grid

Northwest China is an ideal region for large-scale grid-connected PV system installation due to its abundant solar radiation and vast areas. For grid-connected PV systems in this region, one of the key issues is how to reduce the shading effect as much as possible to maximize their power generation. In this paper, a shading simulation model for PV modules is established and its reliability is verified under the standard testing condition (STC) in laboratory. Based on the investigation result of a 20 MWp grid-connected PV plant in northwest China, the typical shading phenomena are classified and analyzed individually, such as power distribution buildings shading and wire poles shading, plants and birds droppings shading, and front-row PV arrays shading. A series of experiments is also conducted on-site to evaluate and compare the impacts of different typical shading forms. Finally, some feasible solutions are proposed to avoid or reduce the shading effect of PV system during operation in such region.

The Summary of Chaos Theory in PV System

2013 ◽  
Vol 811 ◽  
pp. 698-701
Author(s):  
You Jie Ma ◽  
Ling Ma ◽  
Xue Song Zhou
Keyword(s):  
Chaos Theory ◽  
Large Scale ◽  
Energy Research ◽  
Pv System ◽  
Photovoltaic Power ◽  
New Energy ◽  
Large Scale Grid ◽  
The Stability ◽  
Scale Grid ◽  
Energy Shortage

In the situation that the traditional energy shortage and environmental pollution problems have become increasingly grim, the new energy research has been widespread concern at home and abroad. Represented by distributed photovoltaic power is gradually from a stand alone system toward large-scale grid direction. However, the PV system chaotic phenomena threaten the stability of the system.

Control and energy management of a large scale grid-connected PV system for power quality improvement

Solar Energy ◽  
2018 ◽  
Vol 171 ◽  
pp. 893-906 ◽  
Author(s):  
Atallah Ouai ◽  
Lakhdar Mokrani ◽  
Mohamed Machmoum ◽  
Azeddine Houari
Keyword(s):  
Quality Improvement ◽  
Power Quality ◽  
Energy Management ◽  
Large Scale ◽  
Pv System ◽  
Power Quality Improvement ◽  
Large Scale Grid ◽  
Scale Grid

scholarly journals Reliability Analysis and Repair Activity for the Components of 350 kW Inverters in a Large Scale Grid-Connected Photovoltaic System

Electronics ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 564
Author(s):  
Filippo Spertino ◽  
Angela Amato ◽  
Gabriele Casali ◽  
Alessandro Ciocia ◽  
Gabriele Malgaroli
Keyword(s):  
Reliability Analysis ◽  
Large Scale ◽  
Photovoltaic System ◽  
Component Level ◽  
Ac Power ◽  
Repair Activity ◽  
Industrial Maintenance ◽  
Large Scale Grid ◽  
Ac Converters ◽  
Scale Grid

The reliability of photovoltaic (PV) generators is strongly affected by the performance of Direct Current/Alternating Current (DC/AC) converters, being the major source of PV underperformance. However, generally, their reliability is not investigated at component level: thus, the present work presents a reliability analysis and the repair activity for the components of full bridge DC/AC converters. In the first part of the paper, a reliability analysis using failure rates from literature is carried out for 132 inverters (AC rated power of 350 kW each) with global AC power of 46 MW in a large scale grid-connected PV plant. Then, in the second part of the work, results from literature are compared with data obtained by analyzing industrial maintenance reports in the years 2015–2017. In conclusion, the yearly energy losses involved in the downtime are quantified, as well as their availability.

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