PV-Engineering PVPM 1000X User Manual

Peak power measuring device and i-v-curve tracer for pv modules and generators
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PVPM 1000X
1040X
Peak Power Measuring Device
and I-V-Curve Tracer
for PV Modules and Generators
Users Manual

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Summary of Contents for PV-Engineering PVPM 1000X

  • Page 1 PVPM 1000X 1040X Peak Power Measuring Device and I-V-Curve Tracer for PV Modules and Generators Users Manual...
  • Page 2 Page 2 Release © 11 / 2016 PV-Engineering GmbH Hugo-Schultz-Str. 14 DE-58640 Iserlohn Germany Tel. +49 2371 4366480 Fax. +49 2371 4366489 e-Mail service@pv-engineering.de PVPM 1000X / 1040X User Manual PV-Engineering GmbH...
  • Page 3: Table Of Contents

    17.5 D ........................44 IRECT RADIATION DIFFUSE RADIATION 17.6 G ................................44 ENERATOR 17.7 G ............................45 LOBAL TOTAL RADIATION 17.8 S ........................45 HORT CIRCUIT CURRENT OF SOLAR CELLS 17.9 M ................................45 ISMATCHING 17.10 MPP..................................45 PVPM 1000X / 1040X User Manual PV-Engineering GmbH...
  • Page 4 ................................47 FFICIENCY 17.21 F )......................47 WIRE MEASUREMENT ELVIN MEASUREMENT 18 APPENDIX A................................48 18.1 I .........................48 NDICATOR LIGHTS IN THE FRONT PANEL 18.2 S :..............................48 PEAKER SIGNALS 19 DECLARATION OF CONFORMITY........................49 PVPM 1000X / 1040X User Manual PV-Engineering GmbH...
  • Page 5: Software End User License Agreement

    ✔ Distribute or redistribute data files generated by the Software; warranty is valid for 90 days from your date of purchase. PV-Engineering You or any person under your authority or control may not: GmbH excludes any warranty coverage for incidental or consequential ✗...
  • Page 6: 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. PVPM 1000X / 1040X User Manual PV-Engineering GmbH...
  • Page 7: Safety Requirements

    Please do not restore single data files, but always the complete data back-up of the program, otherwise you might cause malfunction, this in turn might lead to data loss! In case of doubt please contact the distributor or the producer. PVPM 1000X / 1040X User Manual PV-Engineering GmbH...
  • Page 8: Warnings

    After the generator is deactivated you can remove the cable connection without harm. PVPM 1000X / 1040X User Manual PV-Engineering GmbH...
  • Page 9: Operation Of The Pvpm

    That is why these results will be suppressed. 6.3 Connecting Peripheral Devices For an I-V-curve measurement besides the PVPM the following components are necessary: 1. USB connection to operating PC (optional) PVPM 1000X / 1040X User Manual PV-Engineering GmbH...
  • Page 10: Power Supply

    Connect the PVPM properly to the solar generator using the cables delivered with the PVPM. The plus pole is marked RED, the minus pole is marked BLACK! Assure that all connectors of the power measuring cables are pushed in completely (until stop) into the sockets. PVPM 1000X / 1040X User Manual PV-Engineering GmbH...
  • Page 11: Connecting Apc

    The PVPM will now pass some self tests and will be ready after about 10-15 seconds of operation. The device is ready when the main menu appears on the LCD-screen: PVPM 1000X / 1040X User Manual PV-Engineering GmbH...
  • Page 12: Switching - On

    Info: displays an overview about the 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 PVPM 1000X / 1040X User Manual PV-Engineering GmbH...
  • Page 13: Buttons

    Goes to next/previous line in the list. Selects next/prior page Select a file with “OK”, exit dialog with “Abort” Use the button “Delete” to delete the selected data-set from PVPM memory. Caution: this operation is not reversible! PVPM 1000X / 1040X User Manual PV-Engineering GmbH...
  • Page 14 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 1000X / 1040X User Manual PV-Engineering GmbH...
  • Page 15: 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 1000X / 1040X User Manual PV-Engineering GmbH...
  • Page 16: External Security Switch 1000V / 32A

    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 1000X / 1040X User Manual PV-Engineering GmbH...
  • Page 17: 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 1000X / 1040X User Manual PV-Engineering GmbH...
  • Page 18 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 1000X / 1040X User Manual PV-Engineering GmbH...
  • Page 19: 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\”. PVPM 1000X / 1040X User Manual PV-Engineering GmbH...
  • Page 20: 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” ➔ PVPM 1000X / 1040X User Manual PV-Engineering GmbH...
  • Page 21 ➔ 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. PVPM 1000X / 1040X User Manual PV-Engineering GmbH...
  • Page 22 ➔ 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) ➔ PVPM 1000X / 1040X User Manual PV-Engineering GmbH...
  • Page 23: 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. PVPM 1000X / 1040X User Manual...
  • Page 24: Operation Of The Software Pvpm.disp

    .SUI. If you click on the directory symbol near the displayed directory in the above dialogue window, you can select the directory, whose measuring data are to be displayed in the list. PVPM 1000X / 1040X User Manual PV-Engineering GmbH...
  • Page 25 (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 1000X / 1040X User Manual PV-Engineering GmbH...
  • Page 26: Edit

    This function is only active when the cursor is placed in a text edit field. 11.2.1 Cut Cuts the marked text and moves it to the clipboard. 11.2.2 Copy Copies the marked text and moves it to the clipboard. PVPM 1000X / 1040X User Manual PV-Engineering GmbH...
  • Page 27: Extra

    With this function the internal real time clock of the PVPM is set to the PCs date/time. 11.3.4 Modify PVPM sensor database You can connect different irradiance sensors to the PVPM. Every sensor has its own calibration value, the PVPM needs to know this PVPM 1000X / 1040X User Manual PV-Engineering GmbH...
  • Page 28 PVPM does not answer or the user cancels the measurements. 11.3.7 Settings All changes made here will be saved automatically and are valid until the next change: PVPM 1000X / 1040X User Manual PV-Engineering GmbH...
  • Page 29 If the factor is not zero the displayed temperatures will be displayed like “xx.x°C korr.” to remember you, that this value is not the measured one. The altered value will not be stored. PVPM 1000X / 1040X User Manual...
  • Page 30: Diagram

    You can select whether the MPP shell be displayed in the diagram or not. Note: The displayed MPP is not exactly one of the measured data points but will be interpolated and thus more precise PVPM 1000X / 1040X User Manual PV-Engineering GmbH...
  • Page 31: Results / Lists

    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 1000X / 1040X User Manual PV-Engineering GmbH...
  • Page 32: Hardware Information

    Flash disk 32MB (can store several 1000 results) A/D-Sampling Rate max. 100kHz, resolution 12Bit Accuracy for the I-V-curve better 1%, Peak Power ±5% The data of several 1000 measurements will be stored automatically in the device (flash memory) PVPM 1000X / 1040X User Manual PV-Engineering GmbH...
  • Page 33: Display

    -10°C to 85°C 5% to 95% 12.8 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 1000X / 1040X User Manual PV-Engineering GmbH...
  • Page 34: 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 1000X / 1040X User Manual PV-Engineering GmbH...
  • Page 35: 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 1000X / 1040X User Manual PV-Engineering GmbH...
  • Page 36: 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 1000X / 1040X User Manual PV-Engineering GmbH...
  • Page 37 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 1000X / 1040X User Manual PV-Engineering GmbH...
  • Page 38 (3) with bypass diodes over half cell string; (4) without bypass diode fig: Simulation of different module characteristics with bypass diodes over a different number of cells (E = 1000W/m2, T = 300K) PVPM 1000X / 1040X User Manual PV-Engineering GmbH...
  • Page 39 18 cells. A cell was differently shaded, the others was fully illuminated (E = 574W/m2, T = 300K) fig: Module characteristics of the module SM50 without bypass diodes, first cell differently shadows (shading degree of SZI = 0..1), E = 407W/m2, T = 300K PVPM 1000X / 1040X User Manual PV-Engineering GmbH...
  • Page 40 I-U diagram: Explanation Page 40 fig: Resulting characteristic during series connection with bypass diode PVPM 1000X / 1040X User Manual PV-Engineering GmbH...
  • Page 41: Sample Curves

    Sample Curves Page 41 Sample Curves Result without errors V/Volt 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 PVPM 1000X / 1040X User Manual PV-Engineering GmbH...
  • Page 42 500,0 600,0 U/Volt Monocrystalline <--> Amorphous Monocrystalline Module aSi - Module 10,0 12,0 14,0 16,0 V/Volt Small R - e.g.: match loss Comparison characteristic Measured characteristic 10,0 20,0 30,0 40,0 50,0 V/Volt PVPM 1000X / 1040X User Manual PV-Engineering GmbH...
  • Page 43 Sample Curves Page 43 High loss due to shading Characteristic without shading Characteristic with 2 shaded regions V/Volt Partly shading Comparison curve Characteristic with errors 10,0 15,0 20,0 25,0 V/Volt PVPM 1000X / 1040X User Manual PV-Engineering GmbH...
  • Page 44: Glossary

    Through scattering (fog, haze, clouds) diffuse/ indirect radiation develops. 17.6 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 1000X / 1040X User Manual PV-Engineering GmbH...
  • Page 45: Global/Total Radiation

    The voltage which drops at the resistor is linear depending from the irradiation and can easily be measured with PVPM 1000X / 1040X User Manual...
  • Page 46: 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 PVPM 1000X / 1040X User Manual PV-Engineering GmbH...
  • Page 47: Efficiency

    (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 1000X / 1040X User Manual PV-Engineering GmbH...
  • Page 48: Indicator Lights In The Front Panel

    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 1000X / 1040X User Manual PV-Engineering GmbH...
  • Page 49: Declaration Of Conformity

    Originalfassung vor. / A technical documentation is completely available. The operation manual of the device is available in its original version. Iserlohn, 01.05.2010 Dipl.-Ing. Klaus M. Schulte (Ort/Place, Datum/Date) Geschäftsführer/Managing Director PVPM 1000X / 1040X User Manual PV-Engineering GmbH...
  • Page 50 Originalfassung vor. / A technical documentation is completely available. The operation manual of the device is available in its original version. Iserlohn, 01.05.2014 Dipl.-Ing. Klaus M. Schulte (Ort/Place, Datum/Date) Geschäftsführer/Managing Director PVPM 1000X / 1040X User Manual PV-Engineering GmbH...

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