scholarly journals Power Quality and System Stability Impact of Large-Scale Distributed Generation on the Distribution Network: Case Study of 60 MW Derna Wind Farm

2018 ◽  
Author(s):  
Saad M. Saad ◽  
Naser El Naily ◽  
Jamal Wafi ◽  
Faisal A. Mohamed ◽  
Abdelsalam Elhaffar
Keyword(s):  
Power Quality ◽  
Distributed Generation ◽  
Large Scale ◽  
Wind Farm ◽  
Distribution Network ◽  
System Stability

scholarly journals Rooftop Solar PV Penetration Impacts on Distribution Network and Further Growth Factors—A Comprehensive Review

Electronics ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 55
Author(s):  
Busra Uzum ◽  
Ahmet Onen ◽  
Hany M. Hasanien ◽  
S. M. Muyeen
Keyword(s):  
Solar Energy ◽  
Power Quality ◽  
Distribution System ◽  
Renewable Energy Sources ◽  
Distribution Network ◽  
System Stability ◽  
Solar Pv ◽  
Voltage Quality ◽  
Solution Methods ◽  
Pv Penetration

In order to meet the electricity needs of domestic or commercial buildings, solar energy is more attractive than other renewable energy sources in terms of its simplicity of installation, less dependence on the field and its economy. It is possible to extract solar energy from photovoltaic (PV) including rooftop, ground-mounted, and building integrated PV systems. Interest in rooftop PV system applications has increased in recent years due to simple installation and not occupying an external area. However, the negative effects of increased PV penetration on the distribution system are troublesome. The power loss, reverse power flow (RPF), voltage fluctuations, voltage unbalance, are causing voltage quality problems in the power network. On the other hand, variations in system frequency, power factor, and harmonics are affecting the power quality. The excessive PV penetration also the root cause of voltage stability and has an adverse effect on protection system. The aim of this article is to extensively examines the impacts of rooftop PV on distribution network and evaluate possible solution methods in terms of the voltage quality, power quality, system protection and system stability. Moreover, it is to present a comparison of the advantages/disadvantages of the solution methods discussed, and an examination of the solution methods in which artificial intelligence, deep learning and machine learning based optimization and techniques are discussed with common methods.

Quantifying the Uncertainty of Energy Creation from Solar and Wind Farms in Different Locations

2016 ◽  
Vol 5 (2) ◽  
pp. 13-46 ◽  
Author(s):  
Roy Nersesian ◽  
Kenneth David Strang
Keyword(s):  
Large Scale ◽  
Wind Farm ◽  
Fossil Fuel ◽  
Wind Farms ◽  
System Stability ◽  
Novel Approach ◽  
Plant Operations ◽  
Generating Capacity ◽  
Demand Fluctuations ◽  
Battery Technology

This paper illustrates how to assess the risk associated with solar and wind farm energy creation by identifying the critical operational factors and then developing multivariate models. The study reveals that a dependence on solar and wind could place consumers at risk of interrupted service given the state of contemporary battery technology. Large scale electricity storage is not currently available which places a contingency risk on electricity generating capacity. More so, maintaining system stability where solar and wind play a significant role in generating electricity is a growing challenge facing utility operators. Therefore, the authors demonstrate how to build a model that quantifies uncertainty by matching uncontrollable supply to uncontrollable demand where a gravity battery may be installed as a buffer. This novel approach generalizes to fossil fuel and nuclear plant operations because demand fluctuations could be managed by storing surplus energy into a gravity battery to meet high peak periods.

scholarly journals Noise assessment of the small-scale wind farm

2019 ◽  
Vol 112 ◽  
pp. 02011
Author(s):  
Cristian-Gabriel Alionte ◽  
Daniel-Constantin Comeaga
Keyword(s):  
Power Systems ◽  
Large Scale ◽  
Wind Farm ◽  
Wind Farms ◽  
Small Scale ◽  
Large Power ◽  
Small Power ◽  
Noise Assessment ◽  
The Impact

The importance of renewable energy and especially of eolian systems is growing. For this reason, we propose the investigation of an important pollutant - the noise, which has become so important that European Commission and European Parliament introduced Directive 2002/49/CE relating to the assessment and management of environmental noise. So far, priority has been given to very large-scale systems connected to national energy systems, wind farms whose highly variable output power could be regulated by large power systems. Nowadays, with the development of small storage capacities, it is feasible to install small power wind turbines in cities of up to 10,000 inhabitants too. As a case study, we propose a simulation for a rural locality where individual wind units could be used. This specific case study is interesting because it provides a new perspective of the impact of noise on the quality of life when the use of this type of system is implemented on a large scale. This option, of distributed and small power wind turbine, can be implemented in the future as an alternative or an adding to the common systems.

Study on Reactive Support of Distributed Generation

2014 ◽  
Vol 490-491 ◽  
pp. 976-982
Author(s):  
Chen Fang ◽  
Ting Ting Xu ◽  
Jin Song Liu ◽  
Jia Chen ◽  
Zhi Gang Lu
Keyword(s):  
Distributed Generation ◽  
Reactive Power ◽  
Positive Impact ◽  
Control Strategies ◽  
Distribution Network ◽  
Operation Conditions ◽  
Compensation Device ◽  
The Stability ◽  
External Characteristics

As for renewable energy, the distributed generation (DG) technology has a promising outlook and is getting more concern in worldwide. In order to ensure the distribution network operate on the best performance when accessed by DG, DG must have a good reactive support for the distribution network. In this paper, the models of different DGs reactive power external characteristics are given. And in the modified case of IEEE37, the SVSA program which is developed by Tianjin University are used to analyze the reactive support of different DG. The case study shows that under some certain control strategies and operation conditions, when properly making use of the reactive support, the distribution network has a better performance in power loss and also has a positive impact on the stability and economical operation. Compare with traditional reactive power compensation device, the DG performs better in overall network voltage and economical operation of network.

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