(/* Braun, P., Wille-Haussmann, B., Ru¨ ther, R., Wittwer, C., 2008. Solar energy on airports: the impact of large-scale photovoltaic systems on distribution networks. In: 23rd European Photovoltaic Solar Energy Conference, Valencia, Spain, pp. 1258–...)
Line 103: Line 103:
* Simulation and sample studies performed support of using solar PV at airport system but 3 of the major troubles faced like Glare, Radio interference and airspace breach were neither incorporated nor discussed.
* Simulation and sample studies performed support of using solar PV at airport system but 3 of the major troubles faced like Glare, Radio interference and airspace breach were neither incorporated nor discussed.


===Braun, P., Wille-Haussmann, B., Ru¨ ther, R., Wittwer, C., 2008. Solar energy on airports: the impact of large-scale photovoltaic systems on distribution networks. In: 23rd European Photovoltaic Solar Energy Conference, Valencia, Spain, pp. 1258–1261.===
===Braun, P., Wille-Haussmann, B., Ru¨ ther, R., Wittwer, C., 2008. [http://www.eupvsec-proceedings.com/proceedings?paper=2781 Solar energy on airports: the impact of large-scale photovoltaic systems on distribution networks]. In: 23rd European Photovoltaic Solar Energy Conference, Valencia, Spain, pp. 1258–1261.===


* To achieve higher penetration ratios of distributed PV generation, to supply the energy levels demanded on airports, there are concerns regarding voltage rise.  
* To achieve higher penetration ratios of distributed PV generation, to supply the energy levels demanded on airports, there are concerns regarding voltage rise.  

Revision as of 03:51, 7 February 2016

About Me

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  • Hi, I am currently a Student at Michigan Tech. pursuing Masters in Power Systems (Electrical Engineering). Have worked in the EPC industry for approximately 3.5 years and also had a short stint with lower level management (Supply Chain Analysis) while working with a major Cosmetic Brand. Currently working on my Photovoltaic System project. Short film making and acting take my time if not engineering or at least something related to engineering.

Interested In

  • Career wise in Solar Power, Project Management, Engineering Procurement and Construction.
  • Interested in being able to support society be self-sustaining. Its fun to think how Utilities might get supported if domestic PV units becomes a mainstream practice. I strongly believe that small communities should try to sustain on their own power/ energy rather than fully being dependent on the Grid thus help minimize transmission congestion and energy cost and of course its Eco friendly too.
  • Eager to learn new things and find striking a random conversation with strangers very interesting.

Research

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Research Interests

  • Solar Energy and Photovoltaics
  • Project Engineering & Manamegemnt

My Research Groups

  • Solar Photovoltaic Technology
  • Dr. Joshua Pearce [1]

Current Projects

  • Solar PV + Airports: Working on Solar PV and Airport system, we don't see many Airports with such collaboration and I am currently working on why not? If they should, then how!
  • Transmission Line Protection: Model and validation for Protection of HV transmission lines from lightning surge & corona.

Past Projects

  • Model and validation for lightning surge & corona analysis through HV transmission lines
  • Study and analysis of the Indian grid system for wind power Integration.
  • Distribution LMP (Locational marginal pricing) using AC OPF (Optimal power flow) model.

Softwares & Tools Used

  • Softwares  : ATP-EMTP, ASPEN, CYME, PowerWorld, MATLAB, GAMS, ERP, SAP

Solar PV + Airports

Literature Review

Bificial PV System in Aichi Airport-Site Demonstrative Research Plant for a New Energy Power Generation

  • System Designed for Solar Power generation along with usage as Noise barriers.
  • 3 types of solar PV used- 1) Multi Crytalline, 2) Amorphous & 3) Single Crystalline (Bi-FAcial)
  • Apart from the combination of above, different types of fuel cells were also used
  • Rear Side of the Bi-facial panels were approx 21% less efficient at site readings in terms of Pmax

Technical Guidance for Evaluating Selected Solar Technologies on Airports by Federal Aviation Administration

Solar PV Resource of USA from 1998-2009, Source - http://www.nrel.gov/gis/solar.html

T. Uematsu, K. Tsutsui, Y. Yazawa, T. Warabisako, I. Araki, T. Joge, Development of bifacial PV cells for new applications of flat-plate modules, in: 12th International Photovoltaic Science and Engineering Conference, 2001, Jeju, Korea, pp. 805–808

The paper review early methods of developing bi-facial PV modules.

  • 12.5X12.5 cm SOG wafers were used for manufacturing B^3 cells
  • Bi-facial PV require long minority carrier lifetime to achieve high efficiency in the rare. (carrier lifetime - carrier lifetime is defined as the average time it takes for a minority carrier to recombine. The energy released due to recombination can be either thermal, thereby heating up the panel)
  • The generated power of a bifacial module did not depend much on the facing direction. When the front and rear efficiencies were the same, the generated power was almost the same as that of a monofacial module tilted at 301 facing south, and it did not show decrease when facing other directions.
The first advantage is that the generated power is not sensitive to the facing direction of the module, which reduces the limitations on PV module installation sites. 
The second is that a bifacial module installed normal to the ground can generate equal or larger power than a monofacial module tilted at 301, which greatly reduces the area required for installing PV modules.

Colli, A.; Zaaiman, W.J., "Maximum-Power-Based PV Performance Validation Method: Application to Single-Axis Tracking and Fixed-Tilt c-Si Systems in the Italian Alpine Region," in Photovoltaics, IEEE Journal of , vol.2, no.4, pp.555-563, Oct. 2012 doi: 10.1109/JPHOTOV.2012.2203794

The paper discusses and validate the performance evaluation through a methodology based on the effective maximum power of the PV modules.

  • Three types of crystals were analyzed - i)polycrystalline silicon, ii)high-efficiency monocrystalline silicon, and iii)hybrid monocrystalline silicon
  • Two types of support structure were also used, i) fixed frame at 30 degrees and ii) single axis tracker
  • The irradiance detected by the tracker plane is higher than that monitored on the fixed support plane
  • Inverter readings are used for collecting system data, therefore its important to check system tolerance for both, DC and AC measurements.
  • The solar constant is the average amount of energy striking one square meter (perpendicular to the suns’ rays) each second at the top of the earths’ atmosphere. The satellite measured solar constant is 1366 W/m2. Of this energy reaching the top of the atmosphere as much as 70% can be absorbed & reflected by the atmosphere. Solar insolation is the amount of energy received by the sun at the earths’ surface. On a clear day ~1000 W/m2 reaches a surface perpendicular to the incoming radiation. This energy varies due to the angle of the incoming radiation and again cloud cover.[4]
Can we help reduce Temperature related stress on Airline hangers by using rooftop PV or worsen it further. Can Rooftop PV be helpful as an alternate roof structure or will it add on to the weight stress and building costs?
reduces heating and cooling costs by insulating the roof, and extends roof life

Ricardo Rüther, Priscila Braun, "Energetic contribution potential of building-integrated photovoltaics on airports in warm climates", Solar Energy, Volume 83, Issue 10, October 2009, Pages 1923-1931, ISSN 0038-092X

This paper discuss exactly the note point mentioned in the previously reviewed paper. Florianopolis International Airport in Brazil used Building Integrated PV to counter two problems at the same time.

  • 1st being the air conditioning cost reduction - being a hot maritime location, air conditioning placed heavy loads in terms of power demand. This was done by using PV to facades leading to providing extra insulation and better cooling on roofs.
  • 2nd is the supply of power from Solar. Being a location with solar radiation irranging from 1500 up to 1650kWh/m^2/year with small seasonal variations, this made up for an ideal location for solar PV.
  • Simulation and sample studies performed support of using solar PV at airport system but 3 of the major troubles faced like Glare, Radio interference and airspace breach were neither incorporated nor discussed.

Braun, P., Wille-Haussmann, B., Ru¨ ther, R., Wittwer, C., 2008. Solar energy on airports: the impact of large-scale photovoltaic systems on distribution networks. In: 23rd European Photovoltaic Solar Energy Conference, Valencia, Spain, pp. 1258–1261.

  • To achieve higher penetration ratios of distributed PV generation, to supply the energy levels demanded on airports, there are concerns regarding voltage rise.
  • Its important to keep in mind that most of the airports have conventional distribution grids and unidirectional power flow. Hence, it needs to be considered while upgrading protection schemes as well. As, the inclusion of solar PV will make the grid bi-directional in power flow.
  • The simulations and testing done in the paper supported the use of solar PV with airport system as having a source in the grid at a distance from the feeder node not only provided with power but also improved the network voltage profile which is necessary for correct working of the grid.
  • However, Solar PV power was unable to support evening peaks in the airport demand but that can be resolved using alternate methods like energy storage during the peak supply in the noon time

Paatero JV, Lund PD. Effects of large-scale photovoltaic power integration on electricity distribution networks. Renewable Energy 2007; 32:216-234.

  • The paper demonstrates analysis of PV system on integration with the distribution grid. Focus is put on static phenomena, including voltage drop, network losses and grid benefits.
  • large-scale implementation of distributed photovoltaic power generation in the end-use side is studied. Five different penetration levels and four different strategies for orientating the solar panels were included.
  • Iterative Newton–Raphson algorithm is used for load flow analysis and was used forits simplicity.However, faster iterative methods are available.
  • Temperature dependent PV model has been applied in simulation for calculation purposes. The system efficiency Z is composed mainly of three factors: the solar module efficiency (Z0) and its temperature dependence and the DC to AC conversion efficiency (Zinv) including losses in cablings

Citations

[3] www.faa.gov [2]

[4] http://education.gsfc.nasa.gov/experimental/July61999siteupdate/inv99Project.Site/Pages/solar.insolation.html

[5] [(http://www.sciencedirect.com/science/article/pii/S0038092X09001820)]

[] European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC) - [3]

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