Pvsyst Tutorial

PV-SYST Tutorials All the tutorials in this series get out teach you how to use the basic functions of PV-SYST to design a PV dodging. This place of tutorials works through how to use the softwargon in both preliminary and project design modes. The primer for this tutorial testament be to design a PV musical arrangement that fits on the area defined by the LDK roof of the model used in the Ecotect_Tutorial. A 30 day full functioning salute version of the program burn be downloaded from the PV-SYST website.Figure 1 presents the first step screen for PV-SYST upon starting the program. From this initial window you can choose whether to undertake an analysis via preceding design or Project design mode. Figure 1 Opening screen for PV-SYST1. Start PV-SYST from StartAll ProgramsPV-SYST. The icon for PV-SYST is presented to the right.2. carry Preliminary form from the available options. This ordain bring up a new panel called formation.3. need Grid-Connected in the System pa nel. Then select OK to delay.4.A new pop-up window title Grid system presizing project will step up, as presented in Figure 2. Click on the Location button to go.5. A 2nd pop-up window will appear called projects location. In the Project name call the file PV-SYST tutorial location Melbourne6. Under the Location heading change the situate entry to Melbourne Meteonorm.7. Leave the other default parameters, and click OK to continue. Note In this preliminary design we are going to assume that there is no near or far shading on our designed PV system.8.In the Grid system presizing project window select the System button.9. This opens another pop-up window titled System Specifications Note In preliminary design mode you have three options to design the system.System size can be set by 1) energetic area 2) Nominal spring or 3) Annual yield.Figure 2 Pop-up window Grid system presizing project 10. 11. 12. 13. Select Active area (m2) as the regularity to determine the system size. Th is will bring up a field titled Area enter the area 54m2. This is the area of the LDK roof. Enter 3 for slant and 180 for azimuth, i. e. ndicating that the roof is sloping towards south. Click the Next button to continue. Note Within the System Specification window you can quickly view how your system urinates losses in comparison to a system with optimum tilt and orientation.In this scenario the loss with respect to the optimum is 12. 2%. 14. In the next window of the System Specification wizard select the module type and specifications. For this tutorial select a. Module Type Standard b. Technology Polycrystalline c. Mounting disposition frontlet or tilt roof d. Ventilation property Ventilation . Click OK to continue. This will take you back to the Grid system presizing project window 15. Select Results in the Grid system presizing project window. A new pop-up window titled results will appear. 16. The default results page appears as presented in Figure 3. From this window you can see the nominal magnate and annual yield from the system. 17. Click on the third graphical icon button (which looks like a table) located down the left hand side of the results page, as highlighted by the blue circle in Figure 3. This will bring up the results in table format. 18.The results page should now display the results on a monthly basis, for the level of insolation falling on a panoramatal flat solid and on the tilted plane that you designed your system on (i. e. 3 sloping facing south). 19. The results also present on a monthly basis the output of the PV system. Note the results for a PV system designed on 54m2 area at 3 sloping facing south achieves annual output of 6835 kWh. further an optimally designed system at 30 degrees tilt facing north can achieve an annual output of 7787 kWh for the same array area. whence our system has a loss of 12. % compared to optimal tilt and orientated system. Figure 3 Results page for Preliminary Design mode Project Design 1. Up on opening PV-SYST select the Project Design option under the Option heading. Note If you are continuing from the following tutorial, close all the open windows to return to the main(prenominal) PV-SYST window that was presented in Figure 1. 2. Select Grid-Connected under the System heading and click OK to continue. This will bring up a new pop-up window pictured as presented in Figure 4. 3. If you wish to save a copy of your file, click on the Project button and fill in the various(prenominal) details.For this tutorial we will not worry about saving any details. 4. Click on the Project Button then click on the range and Meteo button. This will bring up a pop-up window titled Project Situation and Meteo. Make the following adjustments a. Country Australia b. Site Melbourne Meteonorm c. Meteo File Melbourne_syn. met Melbourne, Synthetic hourly data. d. Click Next to continue. Then click Ok in the new pop-up window that appears e. Finally click Back (Calculation) to return to the m ain window. Figure 4 Project window for Project Design mode. 5. Click on the Orientation button 6.Within the Orientation pop-up window change the following parameters a. Plane tilt 3 degrees b. Azimuth 180 degrees c. Field Type Fixed Tilted Plane. d. Leave the other parameters at default settings and click OK to continue Note The horizon tool is used to designate shading elements that appear off in the horizon that will block out access to the sun. For example a cumulus or mountain may block out all the afternoon sun. For this tutorial there is no Horizon shading. 7. Click on Near blending. This element defines elements that are close to the PV array which can cause shading on the system. 8.In this tutorial we will construct a 3D scene to point the shading surrounding the PV system we want to put on the LDK roof of the Ecotect tutorial house. 9. Click on the face/Perspective button. This will bring up a drawing window as presented in Figure 5. 10. First we will draw a rough versi on of the LDK zone to place the PV plane. Select ObjectNewElementary Shading Object from the main toolbar menu. 11. Under the Parameters heading change the following elements e. Shape type Select House, asymmetric roof from the drop down package f. Width (DX) 8. 1m g. Length (DY) 7m h. Height at top 2. 9m i. crownwork 1 tilt angle 3 degrees j. Roof 2 tilt angle 3 degrees k. Roof 1 ratio 0 m l. Click Ok to continue. This will put the building we just dimensioned in the modelling window. Figure 5 Construction/Perspective drawing window Note You always need to check the orientation of any plane or building you draw. The building you just force will have the slope pointing in the west direction. Click on the element you want to adjust, then select ObjectPosition in scene from the main toolbar menu. This will make an object positioning toolbar active in the top right hand corner of the modelling window as presented in Figure 6.Figure 6 Building object in modelling window with object po sitioning toolbar active. 12. Within the Object Positioning toolbar change the Azimuth entry from zero to 90 degrees. 13. Next we will include the tree that causes shading. Select ObjectNewElementary shading object from the main toolbar. 14. Under the Parameters heading change the following elements m. Shape type direct n. Medium-point height 2. 7m o. Medium height 2. 7m p. Low part height 2m q. Trunk height 2m r. Medium diameter 4m s. Trunk diameter 0. 5m t. Click OK to continue u. Move the tree position 11. 5m in the north direction and 3. m in the east direction 15. Next we will include the Neighbouring buildings that may cause shading. Select ObjectNewElementary shading object from the main toolbar. 16. Under the Parameters heading change the following elements v. Shape type Parallelepipede w. Width (DX) 11. 3m x. Length (DY) 11. 5m y. Height 5m 17. 18. 19. 20. 21. z. Click OK to continue aa. Move the neighbouring building 12. 8 m east and 3. 4m south Repeat and create a second neighbour building 3m high, 10. 2m wide, 14. 1m long and explode 26. 77m west and 12. 3m south. Next we will draw in the PV Surface plane.Select ObjectNew Rectangular PV Plane Under the collector plane heading change the following elements bb. Nb. Of rectangles 1 cc. Plane Tilt 3 degrees dd. Width 8. 1m ee. Length 7 ff. Click OK to continue Adjust the Positioning of the PV plane to gg. Tilt 3 degrees hh. Azimuth 180 degrees ii. West 7m jj. Height 2. 5m Now you have detailed the plane the PV is located on and the elements that can possibly cause shading. Your drawing window should appear as presented in Figure 7. Figure 7 Shading scene for PV located on 3 degree sloping facing south 22. Select FileClose.This will return you to the near shading window Note If you already have a built shading file you can load it at a time into the Near Shading window by clicking the Open button under the model library heading, and selecting the near shading scene. Only files that are located in the file location CProgram DataPV systDataShadings can be opened. 23. Select the Table button to generate the shading factors calculated from the model just built. formerly generated close the window. 24. You can view the effects of the shading on an Iso-shading curve by selecting the Graph button located under the Linear (rough) Shading doer heading.Figure 8 presents the results. 25. In the Near shading pop-up window select Ok to continue. Figure 8 Iso shading diagram from PV-SYST for the shading model built 26. In the Project window now select the System button. This will open up the Grid system definition window 27. In the Grid system definition window select or available area as the method to define the system size. Type in 54m2. 28. In the Project Design mode you have the ability to select the actual brand, type and size of module you want in your system. 29. For this tutorial select Sort Modules by exponent.The PV Modules are then ordered by Watt peak output and voltage. You c an choose which ever module you would like to test for your system. For this tutorial, lets select the SunPower 200Wp 34V Si-mono Modules. 30. The next step is to select the inverter. Sort the inverter list via Manufacturer and scroll down to the top of the available Sun Power inverters. Note PV-SYST can automatically determine the number of modules in series and the number of strings per inverter, and the number of inverters required, based on your module and inverter selection.It should be noted however, that the majority of combinations are not compatible. PV- SYST has a grey indicator box, as highlighted by the green square in Figure 9 that provides detail about your chosen combination. For example, if a message in red text is displayed, the combination chosen is not viable, i. e. The Sun Power models we chose in combination with 30kW 420-800V Sunways inverter achieve a message that reads The inverter power is strongly oversized. If a message in orange text is displayed, the com bination is potentially viable, but there are likely to be divulge combinations. . e. The SunPower models we chose in combination with the 3. 3kW 195 550V SunPower inverter achieves a message that reads The inverter power is slightly oversized or with the 5. 2kW 240-450V Sun Power inverter achieves an orange message that reads The array Vmpp at 60C is lower than the inverter minimum operating voltage. The best combinations of PV modules and inverters occur when no message is received. For example the combination of the Sun Power modules we chose with the 4kW 195-550V Sun Power inverter. 31.Choose the Sun Power inverter that is rated at 4kW 195-550V SPR-4000x 32. This combination of PV modules and inverter results in a system that requires two inverters, with 7 modules in series and six strings. 33. Select OK to continue 34. In the Project window select the Simulation button. This will open the Simulation pop-up window. 35. Accept the default parameters and click on the Simulation b utton to begin the calculation process. 36. Click the OK button once the simulation calculation process is complete. This will bring up the Results window