What we offer

Based on our comprehensive technical equipment, our offer for customers for reliability forecasts of PV and battery inverters includes:

1. Component and device analysis

• Identification of critical components that are relevant to both costs and service life
• Investigation of interactions in the device and methodology for predicting the service life of the entire device
• Creation of fault catalogs, including well-founded descriptions of failure types, fault characteristics and causes of failure as part of the physics-of-failure (PoF) assessment

2. Determination of failure and ageing mechanisms

• Identification of typical failure mechanisms in individual components such as film capacitors, connectors and switching devices, PCB-based control electronics and ceramic-based power modules
• Non-destructive and destructive analysis of damaged individual components and inverters in the overall system
• Development of adapted preparation routines for experimental investigations

3. development of improved methodologies

• development of numerical simulation approaches for predicting service life
• creation of CAD models for simulating mechanical, thermal and electrical fields
• simulation of moisture distribution in the individual components and in the overall device and analysis of the results

4. evaluation and optimization of test procedures

• Development and optimization of accelerated tests to provoke error mechanisms and estimate service life considerations (thermal, thermomechanical, chemical, electrochemical)
• Development of accelerated electrical tests with cooperation partners for applications in power electronics, contact technologies and for structural analysis of semiconductors