Development and Experimental Validation of Advanced PV Testing and Control Laboratory Methods

Background

Practical laboratory work is essential for understanding photovoltaic (PV) system operation, control, and diagnostics. At KTH, existing PV laboratory facilities already support conventional PV measurements. The next step is to extend these facilities with more advanced experiments.

The project will focus on two areas. The first is comparative testing of PWM and MPPT controllers using variable DC loads and/or batteries, including partial shading and bypass-diode effects. The second is advanced PV diagnostics using dark I–V measurements, electroluminescence imaging, and potentially thermal imaging for detection of defects and hot spots.

Aim

The goal is to develop and experimentally validate advanced PV laboratory methods for studying PV control, partial shading, and module diagnostics, with the developed methods intended for future laboratory exercises at KTH. Where the results and methodology are of sufficient quality, the work may also form the basis for a conference or journal publication related to advanced PV laboratory testing and engineering education.

Specific Objectives

• Develop comparative test procedures for PWM and MPPT controllers using variable DC loads and/or batteries.

• Investigate partial shading, bypass-diode operation, and their influence on PV and MPPT behaviour.

• Develop and evaluate advanced diagnostic methods, including dark I–V and electroluminescence measurements, with thermal imaging where feasible.

• Develop suitable data processing, visualization, and laboratory procedures.

Expected Deliverables

• Final thesis report and presentation.

• Validated experimental setups and test procedures.

• Measurement data, analysis, and visualization routines.

• Recommendations for implementation in future PV laboratory exercises.

• Where the results and developed methodology are of sufficient quality, contribution toward a conference or journal publication on advanced PV laboratory testing and/or engineering education.

Duration

The project should start in Jan-Feb 2027, with a duration of up to 6 months.

Location

KTH, Department of Energy Technology

Supervisor

Examiner