Download Shareware and Freeware Software for Windows, Linux, Macintosh, PDA

line Home  |  About Us  |  Link To Us  |  FAQ  |  Contact

Serving Software Downloads in 976 Categories, Downloaded 30.129.874 Times

Two Diode Solar Cell/Panel Model 1.0

  Date Added: March 26, 2013  |  Visits: 270

Two Diode Solar Cell/Panel Model

Report Broken Link
Printer Friendly Version


Product Homepage
Download (21 downloads)

First of all you should gather the information from your solar panel datasheet/manual:1)Short Circuit Current2)Maximum Power Point Current @ STC3)Open Circuit Voltage4)Maximum Power Point Voltage @ STC5)Thermal coefficient of Short Circuit Current6)Thermal coefficient of Open Circuit VoltageTo model the solar panel there is a function of the form I=f(V).If you take a look to the math expression you would see some constants and two variables (the global solar irradiation and ambient temperature) which play a role in the function.The constants are determined from the above information. Use the file "twoDiode.mdl" to calculate them.What you have now is the I-V characteristic of the solar panel which is depended from solar irradiation and ambient temperature. The I-V characteristic of your solar panel is implemented in the file "solarpanel.mdl". So you double click the model to define the constants and then you see three inputs. 1)global irradiation 2)temperature 3)Voltage. And you get the current.For example you keep global irradiation and temperature steady and change the voltage from 0 to the open circuit voltage and you get the nice I-V curve that you would see in your datasheet or manual of your solar panel product.If you want to connect this box with some resistance or a more complex circuit you would get the electrical behaviour of your solar panel.But in case you are only interested in power I have also uploaded the file "solarpanel_power.mdl" which has only two inputs: 1) global irradiation and 2) temperature. The solar panel is supposed to be working at Maximum Power Point instantaneously all of the time.Ok now let's see why we got in all this trouble.Let's say that your panel has a peak performance of 15%. But noone really cares about STC conditions. In case your country is a bit north maybe there not any time in the year where solar irradiation is 1000W/m^2 so your solar panel would never reach this performance. What you really care is the mean performance for your own territory.This is easy. You simple go to this website: http://www.soda-is.com/You get fill a form of where you live and in what inclination you have installed your panels and you get the irradiation that the surface of your panels receive in a hourly basis for all the year. Yes you get 8760 values. And another 8760 values for the temperature.There you have to play a little bit with Matlab to extract the values from the excel. Use the xlsread(). Don;t worry you only do this once unless you move to a different area or change the inclination of your panels.Time to get the results.Use the irradiation and temperature values as inputs and let the Simulink simulate your solar panel for a whole year. As output is the power of your panel at each time. Try to integrate that (use the integration block) and you get the energy that came out of your solar panel in a year period. The energy that was received is the integration of solar irradiation. But this is expressed in W/m^2 so calculate it with your solar panel's area (width x length).So now the REAL mean efficiency of this solar panel in YOUR specific area of the world is Energy Out/Energy InI do not know if have been more thorough or less than I should have but I believe this is good way to compare solar panels.Get the info and calculate the constants from first solar panel and then simulate to get real mean efficiency.Do the same for the second, third etc solar panel of the market.Compare the efficiencies and choose the one with the best efficiency!Be ware that efficiency is not the only factor. A good guarantee of 25years of operation should be preferred than a 20 years guarantee with slightly less performance!

Requirements: No special requirements
Platforms: Matlab
Keyword: Basis Hourly Installed Panels Receive Surface Values
Users rating: 0/10

License: Shareware Size: 20.48 KB
TWO DIODE SOLAR CELL/PANEL MODEL RELATED
Utilities  -  ForOffPC 1.0
Thank you for choosing ForOffPC! ForOffPC is designed with three important objectives: - provide you a user-friendly interface. - be simple and easy to operate. - provide multiple useful features, but not an overload. In...
307.17 KB  
Modules  -  CTools HTTP Header Plugins 6.x-1.0
This module defines context and access rules plugins for CTools (and Panels) based upon values of HTTP request header elements. The following headers are exposed into context and can be used as access rules parameters: * Referrer * User Agent *...
10 KB  
Development Tools  -  ReadSTP 1.0
This is set of functions that allow opening of Molecular Imaging atomic force microscope files into Matlab matrix. Unzip the files in one directory and type in Matlab command prompt:y=ReadSTP('pathfilename.stp',buffer number).Matrix y will contain...
10 KB  
Database Tools  -  TCS 4.20
TCS is a trends management program. The data can be field data, coming from one or more acquisition systems of a net and/or internal performance data of servers. In a general way the program can manage every kind of values, stored and periodically...
8.31 MB  
Libraries  -  Math::HashSum 0.02
Math::HashSum can sum a list of key-value pairs on a per-key basis. SYNOPSIS use Math::HashSum qw(hashsum); my %hash1 = (a=>.1, b=>.4); my %hash2 = (a=>.2, b=>.5); my %sum = hashsum(%hash1,%hash2); print "$sum{a}n"; # Prints .3 print...
18.43 KB  
Text Chat Clients  -  Local Talk 1.0.0
Send instant messages up to 128 character long to your office colleagues. Simplay add other computer names or IPs and start sending messages. They do not have to have this software installed to receive your messages. They can respond to your...
1.43 MB  
Entertainment Tools  -  eWicca numerollogy 1
Free tool to calculate word and numeric value. For example, just enter your and your spouse's name and receive numeric values to compare. The same applies to your birthdays
196 KB  
Modules  -  CivicActions 1.0
The included simpletests are: - All custom blocks in the custom module are used, checks for extra code that can be removed. - Files directory is setup properly. - Goolgle Analytics is configured properly. - Htaccess is configured properly. -...
 
Education  -  My Grapher HD 3.2
My Grapher HD is a simple, versatile graphing calculator for algebra, trig, and calculus. FEATURES: Graph like the pros v My Grapher HD can plot an unlimited number of functions simultaneously (as many as memory allows). v The...
4 MB  
Link Indexing  -  Ask and Receive for Scripts 2.2
Ask and Receive is a full-featured Reciprocal Link management system intended to be installed on any web site which provides PHP language support.Ask and Receive increases quality traffic to your site with out any cost and without any gimmicks or...
81.92 KB  
NEW DOWNLOADS IN SCRIPTS, FLASH
Scripts  -  Freelancer Script 5.05
Main Features: 100% Secured. Email Support (3 Years). FREE Updates (3 Years). Post projects. Featured projects. Private projects. Sealed projects. Edit/delete projects. Select freelancers....
5.49 MB  
Scripts  -  B2B Script 4.20
Main Features: 100% Secured. Email Support (3 Years). FREE Updates (3 Years). Sign-up Account (Registration of account). Lead generation tools (for the sellers). Email verification to...
5.49 MB  
Scripts  -  B2C Script 5.06
Main Features: 100% Secured. Email Support (3 Years). FREE Updates (3 Years). The script comes with totally editable site colors, icons and graphics Multilevel categories allows extensive browsing Admin can change Category ordering or...
5.49 MB  
Scripts  -  Social Networking Script 2.86
Main Features: 100% Secured. Email Support (3 Years). FREE Updates (3 Years). Registration with name, email, password, date of birth etc. User can add multiple school, college, university with start...
5.49 MB  
Scripts  -  Business Networking Script 8.04
Main Features: 100% Secured. Email Support (3 Years). FREE Updates (3 Years). Ajax based interface. Profile creation. Different types of profile. Profile for jobseekers, employers and employed...
5.49 MB  
Flash  -  Improved 'vline' 1.0
Several improvements to original 'vline': - Vectorize plotting for speed - Allow axes handle(s) to be specified - Allow standard line options, e.g. 'linewidth' - Rotate labels if requested - Identify lines with 'vline' tags - Remove existing...
10 KB  
Flash  -  Ni DAQ Toolbox 1.0
This toolbox allows users to perform data acquisition under MATLAB (c) version 5 from MathWorks using the NiDAQ (c) library from National Instruments.
225.28 KB  
Flash  -  Travel Guide (Points Based Djikstra Algorithm) 1.0
Objective: Shortest Distance Path between 2 Points.Step: Select 2 Points to get Shortest Distance Path between them.Intro: Background Image "Andhra Pradesh" is a state in India for which the major district Capitals (only) are defined.Note 1:...
51.2 KB  
Flash  -  Five elements algorithm 1.0
The harmony elements algorithm is proposed as a global searching technique of numerical computing which inspired by the old Chinese philosophy: Doctrine of Wu Xing, the five color theorem, and the Hoffman-Singleton graph. According to operation of...
276.48 KB  
Flash  -  Visichat 3.1.0
Visichat is a modern, fully featured and truly global flash chat tool, perfect for live video and audio chat. It is easy to use and install. It supports multiple languages, platforms and payment gateways. Database integration is easy to implement...
2.34 MB