Jump to content

Abid Ali

Members
 View Profile  See their activity

  • Posts

    16

  • Joined

  • Last visited

 Content Type 

Posts posted by Abid Ali

    Hourly optimal tilt to keep a constant current from a PV module

    in How-to

    Posted · Edited by Abid Ali

    image.png.0e454dbe0b28f1858e9aa2ac176be5c7.png

     

    I need to investigate hourly PV module output current and voltage for different tilt.

     

    For example when I run batch simulation using tilt= 0 to 65 degrees, PV output current is summed in AH for each tilt case. 

     

    How to get time series hourly PV ouput for each tilt separately? i.e average current in A instead of summed in Ah

    To see a PV module's open circuit voltages with different tilt settings

    in Simulations

    Posted · Edited by Abid Ali
    some typo errors

    9 hours ago, dtarin said:

    Tilt and orientation will vary the current mostly as this changes amount of irradiance received. Temperature will affect the voltage more; irradiance, not so much. 

    Thanks. I understand and totally agree to this theoretically. 

     

    However, I was wondering if PVsyst is equiped with some formulas for Voc that can tell the impact of facing of PV cell/module away from sun's position

    To see a PV module's open circuit voltages with different tilt settings

    in Simulations

    Posted

    6 minutes ago, Abid Ali said:

    Hello,

    I am working on a research project to electrify a DC load with the direct supply from PV module(s) (without MPPT, battery storage or any power electronics). The objective is to investigate the performance of DC load under different voltages. Therefore, I want to adjust the PV module voltages through adjusting the tilt and orientation.

     

    I was wondering if there exists any tool/function in PVsyst where I can set the location, select a date, choose a PV module and check modules's hourly open circuit voltages for a particular user-set tilt/orientation setting. 

     

    I hope my question is clear. However, if you need more clarification, please write me here. Thanks in advance

    There is a graphic tool for the array's electrical behaviour (please refer to image). I am unable to see tilt/orientation option here

    PVsyst.png

    To see a PV module's open circuit voltages with different tilt settings

    in Simulations

    Posted

    Hello,

    I am working on a research project to electrify a DC load with the direct supply from PV module(s) (without MPPT, battery storage or any power electronics). The objective is to investigate the performance of DC load under different voltages. Therefore, I want to adjust the PV module voltages through adjusting the tilt and orientation.

     

    I was wondering if there exists any tool/function in PVsyst where I can set the location, select a date, choose a PV module and check modules's hourly open circuit voltages for a particular user-set tilt/orientation setting. 

     

    I hope my question is clear. However, if you need more clarification, please write me here. Thanks in advance

    Simulations for 20 years

    in Simulations

    Posted

    On 4/26/2022 at 9:39 AM, Michele Oliosi said:

    Hi,

    You should consider using the "Aging tool" that you will find in the advanced simulation window.
    This will take into account the yearly degradation, basically what you have done in excel. It also allows to access to the degradation loss window, which will give you more information on the aging loss.

    Note that you can only simulate a single year with the meteonorm data you have, because what meteonorm provides (in PVsyst) is a statistics-based synthetic year, similar to a typical year, that is not a real year per se. This is indicated by the year 1990 in PVsyst.

    You can simulate the aging through 20 years of simulations using the meteonorm data, but the same weather data will be used every year, which is not really realistic. Real years will be subject to year-to-year variations. Therefore you should maybe look into getting real time-series data for 20 years. One option (though it may have only 12 years or so) is:

    Main window > Databases > Known format : choose "PVGISv5 hourly time series direct import" in the drop down menu. This will download a number of time-series files, which you can then use in the aging tool above.

    NB: the aging tool is not available for stand-alone systems yet. In order to use it you should redesign your system as a grid connected one. However please first consider the stand-alone system to get advanced information on the battery sizing.
     

    Hi,

     

    Thanks for the detailed information, greatly appreciated

     

    We have been following the same procedure through using the grid connected one. You reply and suggestion have validated our approach so that now we can work with more confidence onward.

     

    Have a nice day!

    Simulations for 20 years

    in Simulations

    Posted

    1 hour ago, Abid Ali said:

    Hello Good Day!

     

    I am working for an off-grid solar PV project in MALI. The project is about electrification of health centres, which may contain some critical health related equipment. Therefore, information about yields and PLOL for each year would be very useful.

     

    I was trying to simulate our PV system using a licensed PVsyst to estimate the results for 20 years . I was trying to do it using Advance Simulation. However, simulation date available at this option are only for 1 year starting from 1990-01-01 to 1990-01-01. The Meteo File for this location shows Meteonorm (19986 - 2005), sat=100%, Synthetic. Therefore, I am able to simulate the results for 1 year. For the remaining years, I am calculating yields manually using MS Excel file by applying 0.5% degradation rate for PV madules.

     

    I was just wondering if I am making any mistake here. Could someone guide me to use proper options in PVsyst in order to perform the simulations for 20 years.

    Corrections:

    1 year starting from 1990-01-01 to 1990-12-31.

    Meteonorm (1986 - 2005)

    Simulations for 20 years

    in Simulations

    Posted

    Hello Good Day!

     

    I am working for an off-grid solar PV project in MALI. The project is about electrification of health centres, which may contain some critical health related equipment. Therefore, information about yields and PLOL for each year would be very useful.

     

    I was trying to simulate our PV system using a licensed PVsyst to estimate the results for 20 years . I was trying to do it using Advance Simulation. However, simulation date available at this option are only for 1 year starting from 1990-01-01 to 1990-01-01. The Meteo File for this location shows Meteonorm (19986 - 2005), sat=100%, Synthetic. Therefore, I am able to simulate the results for 1 year. For the remaining years, I am calculating yields manually using MS Excel file by applying 0.5% degradation rate for PV madules.

     

    I was just wondering if I am making any mistake here. Could someone guide me to use proper options in PVsyst in order to perform the simulations for 20 years.

×
×
  • Create New...