IV Curve Tracer

IVCT - PSE Instruments GmbH

In recent years, we have been developing a sophisticated IV curve tracer for PV modules including a maximum power point tracking (MPPT) function. The IV curve tracer is designed for operation with any market-available steady-state solar simulator. Through our web-based software design, the operator can supervise the test results from every computer in a company network. The software contains functions such as an irradiation sum counter that helps to check requirements stated in a stabilization test like they are defined in IEC 61215 (MQT 19). We have also included a correction function to correct the traced IV curves to standard test conditions (STC) when the user enters the required temperature coefficients. One of the most important features is the multi-IV curve tracing function, which enables the user to display more than 150 IV curves in one graph. This eases the analysis of the weakest cells in hot-spot tests, which are required in IEC 61730 (MST 22) and IEC 61215 (MQT 09).