Summary of Contents for PVE PVPM 1500X
- Page 1 PVPM 1500X Peak Power Measuring Device and I-V-Curve Tracer for PV Strings / Arrays Users Manual...
- Page 2 Page 2 Release © 01 / 2023 PV-Engineering GmbH Hugo-Schultz-Str. 14 58640 Iserlohn Germany Tel. +49 2371 4366480 Fax. +49 2371 4366489 e-Mail service@pv-engineering.de PVPM 1500X User Manual PV-Engineering GmbH...
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Page 3: Table Of Contents
15 REASONS FOR DECREASED POWER AND YIELD OF PV GENERATORS....34 16 I-U DIAGRAM: EXPLANATION................35 17 SAMPLE CURVES....................39 18 GLOSSARY.......................41 18.1 A )..................41 ẞ Α ZIMUTH AND ELEVATION 18.2 S ........................41 LOPE 18.3 DC.......................... 41 PVPM 1500X User Manual PV-Engineering GmbH... - Page 4 18.19 E ......................44 FFICIENCY 18.20 F )............44 WIRE MEASUREMENT ELVIN MEASUREMENT 19 APPENDIX A......................45 19.1 I ................45 NDICATOR LIGHTS IN THE FRONT PANEL 19.2 S :....................... 45 PEAKER SIGNALS 20 DECLARATION OF CONFORMITY................46 PVPM 1500X User Manual PV-Engineering GmbH...
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Page 5: Software End User License Agreement
Distribute or redistribute any part of the Software or TRADE MARKS Files except as described above; Windows is trade marks of Microsoft Corporation Iserlohn, 01.09.2017 PVPM 1500X User Manual PV-Engineering GmbH... -
Page 6: Introduction
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. PVPM 1500X User Manual PV-Engineering GmbH... -
Page 7: Safety Requirements
In case of doubt please contact the distributor or the producer. PVPM 1500X User Manual... -
Page 8: Warnings
The PVPM will make a short circuit during measurement, and when you disconnect a cable under this condition, a light arc can arise and can cause serious damage to health and material! After the generator is deactivated you can remove the cable connection without harm. PVPM 1500X User Manual PV-Engineering GmbH... -
Page 9: Operation Of The Pvpm
For a good measuring quality the sun irradiance during the measurement should be above 500 W/m2. IV-curve measurements are possible below this irradiance value, but the STC values would be less precise and meaningful. That is why the STC values will be suppressed in this case. PVPM 1500X User Manual PV-Engineering GmbH... -
Page 10: Connecting Peripheral Devices
Important: before you can operate the PVPM from a PC with PVPM.disp it is necessary to select the menu option “transfer” on the PVPM. Otherwise the PVPM will not listen to the serial port and the PC can not access the device. PVPM 1500X User Manual PV-Engineering GmbH... -
Page 11: Connecting The Solar Generator
Switch the power of PVPM on by activating the switch “Power” at the front panel. The TFT display will show the start-up screen: The PVPM will now pass some self tests and will be ready after about 10-15 seconds of operation. PVPM 1500X User Manual PV-Engineering GmbH... - Page 12 (optional), voltage at power measurement input. Sensor line: here the currently selected irradiance reference sensor is displayed and can be changed. Bottom line: Current time/date, buttons “Info”, “Archive”, “PC” and “New measurement”. PVPM 1500X User Manual PV-Engineering GmbH...
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Page 13: Buttons
Change: here you can select a different value New I-V-curve measurement, displays submenu Retrieve measurement data from archive Connection to PC („Transfer“) Start I-V-measurement now General: abort, cancel funktion Display results Display I-V-curve Add entry Previous page Next page Confirm, „OK“ PVPM 1500X User Manual PV-Engineering GmbH... -
Page 14: Measurement
Caution: this operation is not reversible! 6.10.3 Transfer This button activates the transfer between PVPM and a connected PC. You can cancel this transfer mode by pressing the “Abort” button at the PVPM screen. PVPM 1500X User Manual PV-Engineering GmbH... - Page 15 The page “Results” displays the measured (voltages, currents, temperatures etc.) and calculated values (Ppk, Rs, Rp, FF). The button “Diagram” selects the page with the I-V-curve, the button “Results” displays the results as described above. PVPM 1500X User Manual PV-Engineering GmbH...
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Page 16: 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 PVPM 1500X User Manual PV-Engineering GmbH... -
Page 17: External Security Switch 1500V / 20A
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. PVPM 1500X User Manual PV-Engineering GmbH... -
Page 18: 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: PVPM 1500X User Manual PV-Engineering GmbH... -
Page 19: Accuracy Of The Peak Power Calculations From I-Vcharacteristics Of Pv Generators With The Pvpm
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) PVPM 1500X User Manual PV-Engineering GmbH... -
Page 20: Installation Of The Transfer And Evaluation Software Pvpm.disp
A typical data file name could be "24-05-01 14_17_04.SUI", this file contains data from a measurement made May 24 , 2001 at 02:17:04 pm. The measuring data are usually stored in files below “My Documents\PVPMdisp\”. PVPM 1500X User Manual PV-Engineering GmbH... -
Page 21: Installing The Usb Device 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. PVPM 1500X User Manual... -
Page 22: Operation Of The Software Pvpm.disp
If you want to re-use the current data later you will have to save it to a disk file before loading different data. The files have the default extension .SUI. PVPM 1500X User Manual PV-Engineering GmbH... - Page 23 (for example .XLS instead of .SUI). You can process the exported files afterwards with a program of your choice. Changes at the exported files do not have influence on the original data. PVPM 1500X User Manual PV-Engineering GmbH...
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Page 24: Edit
Cuts the marked text and moves it to the clipboard. 11.2.2 Copy Copies the marked text and moves it to the clipboard. 11.2.3 Insert Inserts the contents of the clipboard at the cursor position. PVPM 1500X User Manual PV-Engineering GmbH... -
Page 25: Extra
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. PVPM 1500X User Manual PV-Engineering GmbH... - Page 26 (insufficient user rights), the application will only display simple interface identifiers like „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 PVPM 1500X User Manual PV-Engineering GmbH...
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Page 27: Diagram
In the diagram you can draw up a rectangle with the mouse cursor (from top left to bottom right with pressed left mouse button). This marked region then will be displayed zoomed. To come back to normal view just click onto PVPM 1500X User Manual... - Page 28 A legend of the displayed graphs can be displayed optionally. Here you can switch the display of the legend on or off. 11.4.1.7 Copy to clipboard (button “Clipboard”) Copies the actual diagram to the clipboard, you can enter this copy for example into a word document. PVPM 1500X User Manual PV-Engineering GmbH...
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Page 29: Results / Lists
Displays the contents of the online help. 11.6.2 Search Here you can search within the online help. 11.6.3 Use help Basic hints for the windows help system. 11.6.4 Info Displays an information window with the version number of the program. PVPM 1500X User Manual PV-Engineering GmbH... -
Page 30: Technical Data
Page 30 Technical data Technical data Device: Device designation Peak Power and Characteristic Meter Type PVPM 1500X Display 4,3“ Color TFT Display 480x272Pixels Power supply 16VDC Current consumption 1.8 ADC IP protection IP40 (IP67 with closed lid) Dimensions 40.6 cm x 17.5 cm x 33.0 cm (W x H x D) Working temperature 0°... -
Page 31: Hardware Information
Flash disk 512MB (can store several thousand results) A/D-Sampling Rate max. 100kHz, resolution 12Bit Accuracy for the I-V-curve better 1%, Peak Power ±5% The data of several thousand measurements will be stored automatically in the device (flash memory) PVPM 1500X User Manual PV-Engineering GmbH... -
Page 32: Display
-10°C to 85°C 5% to 95% 13.9 Optionally available accessory Software for MS-Windows for the automatic generation of test reports test leads e.g. with length 15m or 25m (different lengths on request) PVPM 1500X User Manual 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 PVPM 1500X User Manual 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. PVPM 1500X User Manual 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) PVPM 1500X User Manual 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) PVPM 1500X User Manual 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) PVPM 1500X User Manual 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 PVPM 1500X User Manual PV-Engineering GmbH...
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Page 39: Sample Curves
Sample Curves Page 39 Sample Curves Shading and match losses Comparison curve Characteristic with errors V/Volt Result without errors V/Volt Monocrystalline <--> Amorphous Monocrystalline Module aSi - Module 10,0 12,0 14,0 16,0 V/Volt PVPM 1500X User Manual PV-Engineering GmbH... - Page 40 400,0 500,0 600,0 U/Volt Small R - e.g.: match loss Comparison characteristic Measured characteristic 10,0 20,0 30,0 40,0 50,0 V/Volt High loss due to shading Characteristic without shading Characteristic with 2 shaded regions V/Volt PVPM 1500X User Manual PV-Engineering GmbH...
- Page 41 Sample Curves Page 41 Partly shading Comparison curve Characteristic with errors 10,0 15,0 20,0 25,0 V/Volt PVPM 1500X User Manual PV-Engineering GmbH...
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Page 42: Glossary
Through scattering (fog, haze, clouds) diffuse/ indirect radiation develops. 18.6 Generator Lat.: producer. Generators dissipate other forms of energy into current. In the photovoltaic the entirety of the interconnected photovoltaic modules is characterized as generator or as solar power plant. PVPM 1500X User Manual PV-Engineering GmbH... -
Page 43: Global/Total Radiation
This resistance results physically from the material being used for the production of the module as well as from its cable connections. For crystalline modules it amounts about 0.5Ohm, for thin-film modules more than 2 Ohm. PVPM 1500X User Manual... -
Page 44: Solar Constant
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. PVPM 1500X User Manual PV-Engineering GmbH... -
Page 45: Four-Wire Measurement (Kelvin Measurement)
(here voltage will drop on the wire), the voltage is measured over the other two wires that are connected to a high resistance input (here nearly no current flows and thus no significant voltage drops). PVPM 1500X User Manual 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 PVPM 1500X User Manual PV-Engineering GmbH... -
Page 47: Declaration Of Conformity
Originalfassung vor. / A technical documentation is completely available. The operation manual of the device is available in its original version. Iserlohn, 01.06.2018 Dipl.-Ing. Klaus M. Schulte (Ort/Place, Datum/Date) Geschäftsführer/Managing Director PVPM 1500X User Manual PV-Engineering GmbH...
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