Related Manuals for PV-Engineering PVPM 2540C
Summary of Contents for PV-Engineering PVPM 2540C
- Page 1 PVPM 2540C 6020C 1000C 1000C40 Peak Power Measuring Device and I-V-Curve Tracer for PV Moduls und Generators Users Manual...
- Page 2 Release © 07 / 2015 PV-Engineering GmbH Hugo-Schultz-Str. 14 DE-58640 Iserlohn Tel. +49 2371 436648-0 Fax. +49 2371 436648-9 e-Mail service@pv-engineering.de...
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Page 3: Table Of Contents
HARACTERISTIC 16.19 F )..........................46 WIRE MEASUREMENT ELVIN MEASUREMENT 16.20 E ....................................46 FFICIENCY 17 APPENDIX A...................................... 47 17.1 - I ...............................47 NDICATOR LIGHTS IN THE FRONT PANEL 17.2 S :..................................... 47 PEAKER SIGNALS Operation manual for PVPM devices PV-Engineering GmbH... -
Page 4: Software End User License Agreement
PV-Engineering GmbH for replacement or refund. This ✗ Copy or use the Software except as authorized under this License warranty is valid for 90 days from your date of purchase. PV-Engineering Grant; GmbH excludes any warranty coverage for incidental or consequential ✗... -
Page 5: Introduction
I-V-characteristic curve of single photovoltaic modules and strings. Before connecting the PV generator under test to the measuring instrument it must be ensured that the test specimen cannot exceed the maximum current and voltage levels of the measuring instrument at any time. Operation manual for PVPM devices PV-Engineering GmbH... -
Page 6: Safety Requirements
Before each measurement check the test leads for the power measurement for damages. Never operate damaged test leads! If the conducting wires of the measuring device are damaged they have to be replaced. Mending the wires is not admissible. Operation manual for PVPM devices PV-Engineering GmbH... - Page 7 After the generator is deactivated you can remove the cable connection without harm. Operation manual for PVPM devices PV-Engineering GmbH...
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Page 8: Operation Of The Pvpm
9. Four-wire measuring connector (voltage) 10. Four-wire measuring connector (current) 11. External voltage supply/battery charge at left side of the PVPM Fig.: Sensor connectors until 2003 (left) , 2003 - 2008 (middle), scince 2008 (right ) Operation manual for PVPM devices PV-Engineering GmbH... -
Page 9: General Hints
At the left side of the PVPM, input 16Vdc Temperature (External) temperature sensor Irradiance Combined sensor irradiance / Pt1000 temperature 4-wire-measurement Voltage input (module under test) Current input Current input (module under test) Serial connection to PC (AT Cross cable 9-Pin) Operation manual for PVPM devices PV-Engineering GmbH... -
Page 10: Power Supply
In the simplest case the sensor is fastened with a clamp to the modules under test. Pay attention that the sensor does not shadow the modules under test! The sensor should have some time in order to adapt to the Operation manual for PVPM devices PV-Engineering GmbH... -
Page 11: Switching-On
The I-V- curve measurement will take up to 2 seconds, than the calculated results will be displayed immediately on the PVPMs display (or on the PC). Operation manual for PVPM devices PV-Engineering GmbH... -
Page 12: Menus
“Display” will again show the results of this measurement on the display, “Delete” will delete the dataset from internal storage (caution: you cannot undo this operation!), “Abort” brings you back to the main menu. Operation manual for PVPM devices PV-Engineering GmbH... - Page 13 5.11.4.4Menu Set /Time” Here you can set date and time of the internal clock of the PVPM1000C, but it will be much more simple to do this with the program PVPM.disp (see chapter 10). Operation manual for PVPM devices PV-Engineering GmbH...
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Page 14: Messages
The device will short circuit the generator if the polarity is wrong and can take harm. If you disconnect the cables under voltage a light arc can cause serious damage to health and material Operation manual for PVPM devices PV-Engineering GmbH... -
Page 15: External Security Switch 1000V / 25A
If you detect a defect at the switch, the housing or the connection cables, the switch must not be used any longer under any condition! Only specially instructed professionals must do repairs! Keep the switch and cables away from liquids, dust and dirt. Clean the surface with a damp cloth only. Operation manual for PVPM devices PV-Engineering GmbH... -
Page 16: Impacts On The Accuracy Of The Measurement
You can enhance the precision of the PVPM results by measuring the same object several times (e.g. 5 times) and after that do a statistical evaluation on these results. Given below are once more the parameters, that are decisive for the accuracy of the measurements: Operation manual for PVPM devices PV-Engineering GmbH... - Page 17 The temperature of the device under test and the reference sensor has got to be balanced (no alteration of temperature may be indicated) ● Current and voltage of the device under test are measured with distinct measuring lines (four-wire measurement) Operation manual for PVPM devices PV-Engineering GmbH...
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Page 18: Installation Of The Transfer Software Pvpm.disp
A typical file name could be 24-05-01 14_17_04.SUI, this file contains data from a measurement made May 24., 2001 at 2:17:04pm. The measuring data are usually stored in files below “My Documents\PVPMdisp\”. Operation manual for PVPM devices PV-Engineering GmbH... -
Page 19: Installing The Usb Device Driver
Figure 10.1 before a connection to Windows Update will be made. Select “No, not this time” and click on “Next”. Figure 10.1 Select “Install from a list or specific location” as displayed in Figure 10.2 below and click on “Next” ➔ Operation manual for PVPM devices PV-Engineering GmbH... - Page 20 “Next”, to continue. ➔ If Windows is configured to warn, if a not WHQL certified driver is to be installed, an warning message ➔ will appear now. Click to “Continue anyway” and continue the installation. Operation manual for PVPM devices PV-Engineering GmbH...
- Page 21 The hardware assistant may now appear a second time for the installation of a second USB port. ➔ The installation procedure will be the same as described above for the first port. ➔ ➔ After the installation the new COM port appears in the device manager (Figure 10.6) ➔ Operation manual for PVPM devices PV-Engineering GmbH...
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Page 22: Uninstalling The Cdm Driver
The driver can be removed using the Windows device manager: select the device in the list of devices with the right mouse key and select “Uninstall”. This will delete the entries for this device from registry. Operation manual for PVPM devices PV-Engineering GmbH... -
Page 23: Operation Of The Software Pvpm.disp
In this list you can now either select an entry by doubleclick (these data will Operation manual for PVPM devices PV-Engineering GmbH... - Page 24 This report may be printed out or written to a PDF document. Please pay attention to the fact, that in some cases the page orientation of the printer has to be changed before printing out. The print uses the whole available printing area. Operation manual for PVPM devices PV-Engineering GmbH...
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Page 25: Edit
Now you can display the data in a diagram (chap. 10.4) or a list (chap. 10.5), export (chap. 10.1.3) or save to file (chap. 10.1.2). Important: When the measurement is initialized from the PC the data will not be stored in the PVPM! Operation manual for PVPM devices PV-Engineering GmbH... - Page 26 If you want to modify the sensors database the PVPM must be connected and ready for data transfer. When you start this function the database is loaded from PVPM and will be stored back to PVPM when you close this form. Operation manual for PVPM devices PV-Engineering GmbH...
- Page 27 „COMx“. A selection of the interface is possible anyway. If you do not know, to which interface the PVPM is attached, you can use the button „look for“: that allows the Operation manual for PVPM devices PV-Engineering GmbH...
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Page 28: Diagram
The altered value will not be stored. 10.3.8 Firmware-Update This function is for service purposes only and not documented here. 10.4 Diagram After loading the data of a measurement the diagram will be displayed. Operation manual for PVPM devices PV-Engineering GmbH... -
Page 29: Results / Lists
Copies the actual diagram to the clipboard, you can enter this copy for example into a word document. 10.5 Results / Lists By clicking the option ”Display data list“ in the local menu a window with the measured characteristic data (in a list) appears. Operation manual for PVPM devices PV-Engineering GmbH... -
Page 30: Help (Not Yet Implemented)
10.6.2 Search Here you can search within the online help. 10.6.3 Use help Basic hints for the windows help system. 10.6.4 Info Displays an information window with the version number of the program. Operation manual for PVPM devices PV-Engineering GmbH... -
Page 31: Hardware Information
Pin 4 = Current source + (~1 mA) Pin 5 = Current source - (~1 mA) Pin 6 = do not connect Pin 7 = do not connect Pin 8 = Pt1000 (reference) - Operation manual for PVPM devices PV-Engineering GmbH... -
Page 32: Calculation Unit
-10°C to 85°C 5% to 95% 11.8 Optionally available: Software for MS-Windows for the automatic generation of test reports • test leads e.g. with length 15m or 25 m (different lengths on request) • Operation manual for PVPM devices PV-Engineering GmbH... -
Page 33: List Of Symbols
Standard Test Conditions fE0=1000W/m , AM1.5, T=25°C Current module temperature (at the back side of the module) Voltage Short form for Upmax Open circuit voltage Open circuit voltage (at STC) Maximum power voltage pmax Operation manual for PVPM devices PV-Engineering GmbH... -
Page 34: Reasons For Decreased Power And Yield Of Pv Generators
Production fault / reduction of price, replacement by supplier Please notice: some faults may appear only under special operating states, e.g. high module temperatures. This compilation does not claim to be complete or free of failures. Operation manual for PVPM devices PV-Engineering GmbH... -
Page 35: U Diagram: Explanation
Current voltage characteristics with an irradiation of 1000W/m2 and different irradiations fig: Current voltage characteristics with an irradiation of 1000W/m2 and different cell temperatures fig: Construction of the module characteristic from the cell characteristics (irradiance E = 400W/m2, T = 300K) Operation manual for PVPM devices PV-Engineering GmbH... - Page 36 Solar cell characteristic of a polycrystalline cell over the whole voltage range with different shading degrees (E0 = 1000W/m2, T = 300K) fig: Construction of the module characteristic of the module SM50 with a 75% shaded cell (E = 407W/m2, T = 300k) Operation manual for PVPM devices PV-Engineering GmbH...
- Page 37 Comparison of simulation and measured values by the example of the module SM50, 36 cells with two bypass diodes over in each case 18 cells. A cell was differently shaded, the others was fully illuminated (E = 574W/m2, T = 300K) Operation manual for PVPM devices PV-Engineering GmbH...
- Page 38 Module characteristics of the module SM50 without bypass diodes, first cell differently shadows (shading degree of SZI = 0..1), E = 407W/m2, T = 300K fig: Resulting characteristic during series connection with bypass diode Operation manual for PVPM devices PV-Engineering GmbH...
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Page 39: Sample Curves
Partly shading Measured characteristic 10,0 15,0 20,0 25,0 V/Volt Shading and match losses Comparison curve Characteristic with errors V/Volt Shading and mismatch Reference characteristic Measured characteristic 100,0 200,0 300,0 400,0 500,0 600,0 U/Volt Operation manual for PVPM devices PV-Engineering GmbH... - Page 40 Monocrystalline <--> Amorphous Monocrystalline Module aSi - Module 10,0 12,0 14,0 16,0 V/Volt Result without errors V/Volt Small R - e.g.: match loss Comparison characteristic Measured characteristic 10,0 20,0 30,0 40,0 50,0 V/Volt Operation manual for PVPM devices PV-Engineering GmbH...
- Page 41 15Sample Curves Partly shading Comparison curve Characteristic with errors 10,0 15,0 20,0 25,0 V/Volt High loss due to shading Characteristic without shading Characteristic with 2 shaded regions V/Volt Operation manual for PVPM devices PV-Engineering GmbH...
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Page 42: Glossary
Through scattering (fog, haze, clouds) diffuse/ indirect radiation develops. 16.6 Generator Lat.: producer. Generators dissipate other forms of energy into current. In the photovoltaic the entirety of the interconnected photovoltaic modules is characterised as generator or as solar power plant. Operation manual for PVPM devices PV-Engineering GmbH... -
Page 43: Global/Total Radiation
The voltage which drops at the resistor is linear depending from the irradiation and can easily be measured with Operation manual for PVPM devices PV-Engineering GmbH... -
Page 44: Internal Series Resistance
FF = I pmax pmax The I-V-curve is the basis for the calculation of the effective solar curve, which then allows the determination of the peak power P and the internal series resistance R Operation manual for PVPM devices PV-Engineering GmbH... -
Page 45: Four-Wire Measurement (Kelvin Measurement)
3 - 4% of the assigned energy into light, photovoltaic generators respectively solar cells at present reach an efficiency of 11 - 17%, thermal solar plants between 25 and 40% regarding the solar radiation. Operation manual for PVPM devices PV-Engineering GmbH... -
Page 46: Indicator Lights In The Front Panel
PVPM (only service mode) destination file is deleted dee-dee-dee- During measurement: Measurement is irradiation varies or is too inaccurate and must be small rejected dee-dee-dee- A/D converter could not be Customer service da-da-da- initialized necessary dee-dee-dee Operation manual for PVPM devices PV-Engineering GmbH... -
Page 47: Declaration Of Conformity
17Appendix A Konformitätserklärung Declaration of Conformity Operation manual for PVPM devices PV-Engineering GmbH... -
Page 48: Hugo-Schultz-Str
Originalfassung vor. A technical documentation is completely available. The operation manual of the device is available in its original version. Iserlohn, 01.10.2009 Dipl.-Ing. Klaus M. Schulte (Ort/Place, Datum/Date) Geschäftsführer/Managing Director Operation manual for PVPM devices PV-Engineering GmbH...
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