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.

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 The Technical Challenges Facing the Integration of Small-Scale and Large-scale PV Systems into the Grid: A Critical Review

Electronics ◽  
2019 ◽  
Vol 8 (12) ◽  
pp. 1443 ◽  
Author(s):  
Abdullah Alshahrani ◽  
Siddig Omer ◽  
Yuehong Su ◽  
Elamin Mohamed ◽  
Saleh Alotaibi
Keyword(s):  
Large Scale ◽  
Distribution Network ◽  
Small Scale ◽  
Energy Access ◽  
Solar Pv ◽  
Pv System ◽  
Pv Systems ◽  
Technical Challenges ◽  
Technical Solutions ◽  
The Impact

Decarbonisation, energy security and expanding energy access are the main driving forces behind the worldwide increasing attention in renewable energy. This paper focuses on the solar photovoltaic (PV) technology because, currently, it has the most attention in the energy sector due to the sharp drop in the solar PV system cost, which was one of the main barriers of PV large-scale deployment. Firstly, this paper extensively reviews the technical challenges, potential technical solutions and the research carried out in integrating high shares of small-scale PV systems into the distribution network of the grid in order to give a clearer picture of the impact since most of the PV systems installations were at small scales and connected into the distribution network. The paper reviews the localised technical challenges, grid stability challenges and technical solutions on integrating large-scale PV systems into the transmission network of the grid. In addition, the current practices for managing the variability of large-scale PV systems by the grid operators are discussed. Finally, this paper concludes by summarising the critical technical aspects facing the integration of the PV system depending on their size into the grid, in which it provides a strong point of reference and a useful framework for the researchers planning to exploit this field further on.

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

Impact of Large Scale Grid Connected Wind Power on Power System

2014 ◽  
Vol 543-547 ◽  
pp. 685-688
Author(s):  
Ming Yue Wei
Keyword(s):  
Power System ◽  
Wind Power ◽  
Capacity Planning ◽  
Large Scale ◽  
Wind Power Generation ◽  
Wind Power Integration ◽  
Large Scale Grid ◽  
The Impact ◽  
Reliability Planning ◽  
Scale Grid

The randomness and fluctuation of wind results in wind power generation with strong uncertainty. To ensure the power system operate safely and reliably, research on the impact of grid connected wind power on power system is necessary. From the perspective of system relay protection, system peaking, transmission capacity planning and reliability planning, this paper introduces the impact of centralized wind power integration on power system.

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