Large-scale photovoltaic system on green ship and its MPPT controlling

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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Cascaded Multilevel Converter Topology for Large-Scale Photovoltaic System With Balanced Operation

IEEE Transactions on Industrial Electronics ◽

10.1109/tie.2018.2885739 ◽

2019 ◽

Vol 66 (10) ◽

pp. 7694-7705 ◽

Cited By ~ 5

Author(s):

Kangan Wang ◽

Rongwu Zhu ◽

Chen Wei ◽

Feng Liu ◽

Xiaojie Wu ◽

...

Keyword(s):

Large Scale ◽

Photovoltaic System ◽

Multilevel Converter ◽

Converter Topology

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Fuzzy control in H-Bridge MLI for solar photovoltaic system to enhance load sharing

International Journal of Electrical Engineering Education ◽

10.1177/0020720918816002 ◽

2018 ◽

Vol 57 (1) ◽

pp. 64-72 ◽

Cited By ~ 56

Author(s):

T Yuvaraja ◽

KA Ramesh Kumar

Keyword(s):

Energy Storage ◽

Large Scale ◽

Storage Systems ◽

Load Sharing ◽

Electric Power System ◽

Photovoltaic System ◽

Battery Energy Storage ◽

Battery Energy Storage Systems ◽

Solar Photovoltaic System ◽

Battery Energy

The electric power system is undergoing important changes and updates nowadays, particularly on a generation and transmission level. Initially, the move towards a distributed generation in distinction to the present centralized one implies a major assimilation of energy from undeleted supply and electricity storage systems. Advanced power physics interfacing systems are expected to play a key role within the development of such modern governable and economical large-scale grids and associated infrastructures. Throughout the last era, a worldwide analysis and development interest has been impressed within the field of segmental structure conversion; thanks to the well-known offered blessings over typical solutions within the medium and high voltage and power range. Within the context of battery energy storage systems, the segmental structure conversion device family exhibits a further attraction, i.e., the aptitude of embedding such storage parts in an exceedingly split manner, given the existence of many submodules operative at considerably lower voltages. This study deals with many technical challenges related to segmental structure converters and their development with battery energy storage parts to boost load sharing system.

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Analysis and Prioritization of the Floating Photovoltaic System Potential for Reservoirs in Korea

Applied Sciences ◽

10.3390/app9030395 ◽

2019 ◽

Vol 9 (3) ◽

pp. 395 ◽

Cited By ~ 12

Author(s):

Sung-Min Kim ◽

Myeongchan Oh ◽

Hyeong-Dong Park

Keyword(s):

Water Depth ◽

Solar Irradiance ◽

Preliminary Analysis ◽

Large Scale ◽

Power Production ◽

Photovoltaic System ◽

Solar Panels ◽

Ghg Reduction ◽

The World ◽

Lakes And Reservoirs

Photovoltaic (PV) energy is one of the most promising renewable energies in the world due to its ubiquity and sustainability. However, installation of solar panels on the ground can cause some problems, especially in countries where there is not enough space for installation. As an alternative, floating PV, with advantages in terms of efficiency and environment, has attracted attention, particularly with regard to installing large-scale floating PV for dam lakes and reservoirs in Korea. In this study, the potentiality of floating PV is evaluated, and the power production is estimated for 3401 reservoirs. To select a suitable reservoir for floating PV installation, we constructed and analyzed the water depth database using OpenAPI. We also used the typical meteorological year (TMY) data and topographical information to predict the irradiance distribution. As a result, the annual power production by all possible reservoirs was estimated to be 2932 GWh, and the annual GHG reduction amount was approximately 1,294,450 tons. In particular, Jeollanam-do has many reservoirs and was evaluated as suitable for floating PV installation because of its high solar irradiance. The results can be used to estimate priorities and potentiality as a preliminary analysis for floating PV installation.

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Power quality analyses of a large scale photovoltaic system

2014 5th International Renewable Energy Congress (IREC) ◽

10.1109/irec.2014.6826946 ◽

2014 ◽

Cited By ~ 10

Author(s):

Pedro A. B. Block ◽

Henry L. L. Salamanca ◽

Mateus D. Teixeira ◽

Diogo B. Dahlke ◽

Otavio M. Shiono ◽

...

Keyword(s):

Power Quality ◽

Large Scale ◽

Photovoltaic System

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Design optimization of a large scale rooftop photovoltaic system

Solar Energy ◽

10.1016/j.solener.2004.08.008 ◽

2005 ◽

Vol 78 (3) ◽

pp. 362-374 ◽

Cited By ~ 65

Author(s):

Xiangyang Gong ◽

Manohar Kulkarni

Keyword(s):

Design Optimization ◽

Large Scale ◽

Photovoltaic System

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Impact of Storage Integrated Solar Photovoltaics (PV) Power System on Utility Peak Loads

ASME 2011 5th International Conference on Energy Sustainability, Parts A, B, and C ◽

10.1115/es2011-54150 ◽

2011 ◽

Cited By ~ 1

Author(s):

K. Agyenim-Boateng ◽

R. F. Boehm

Keyword(s):

Large Scale ◽

Peak Load ◽

Average Energy ◽

Transient Behavior ◽

Climatic Conditions ◽

Photovoltaic System ◽

Solar Pv ◽

Pv System ◽

Grid Load ◽

The Impact

The promise of large-scale use of renewables such as wind and solar for supplying electrical power is tempered by the sources’ transient behavior and the impact this would have on the operation of the grid. One way of addressing this is through the use of supplemental energy storage. While the technology for the latter has not been proven on a large scale or to be economical at the present time, some assessments of what magnitude is required can be made. In performing this work we have used NREL’s Solar Advisor Model (SAM 2010) with TMY3 solar data to estimate the photovoltaic system power generation. Climatic conditions close to load centers were chosen for the simulations. Then the PV output for varying sizes of arrays were examined and the impact of varying amounts of storage investigated. The storage was characterized by maximum limiting energy and power capacities based on annual hourly peak load, as well as its charging and discharging efficiencies. The simulations were performed using hourly time steps with energy withdrawn from, or input to, storage only after considering base generation and the PV system output in serving the grid load. In this work, we examined the load matching capability of solar PV generation (orientated for maximum summer output) for a sample Southwestern US utility grid load of 2008. Specifically we evaluated the daily and seasonal peak load shifting with employing varying storage capacities. The annual average energy penetration based on the usable solar PV output is also examined under these conditions and at different levels of system flexibility.

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