Mission-profile-based Testing Facilities for Commercial PV Inverters

Testing Capabilities

Mission Profile-based Testing

The advanced PV inverter testing infrastructure offers a possibility to test the inverter under mission profile operation (e.g., emulating real-field condition). Key parameters such as temperature stress, power losses, and efficiency can be monitored during the test.

Standard Testing

The test facility also offers a standard testing condition for PV inverter, e.g., EN 50503 for maximum power point tracking efficiency, IEC 62093 for design qualification testing.

Dynamic Measurement under Disturbances

The PV inverter can also be tested under the disturbance from the electrical network, e.g., unbalance and faults. The test conditions can be emulated through grid simulator.

Long Term Degradation/lifetime Testing

The test facility offers an opportunity to realize a long-term operation for degradation and lifetime testing at the converter-level (e.g., system-level testing). The standard testing for design and qualification, e.g., IEC 62093, and/or the customized mission profile can be applied.

Key Figures of Accelerated Testing Facilities at X-POWER

• High DC voltage (up to 1500 Vdc) with controllable PV array characteristic
• AC voltage with controllable amplitude, frequency, and waveform
• Controllable ambient temperature
• Maximum power load: 50 kW
• Data acquisition: Junction temperature, DC and AC current and voltage, active and reactive power, efficiency

Potential to Research and Industry Service

• Component parameters characterization (electrical/thermal)
• Efficiency and thermal measurement under standard testing condition
• Efficiency and thermal measurement under the real operating condition
• Dynamic electrical and thermal measurement under disturbances (e.g., harmonics, faults)
• Long-term degradation/life testing