Photovoltaic Products Testing

Home > Our Services > Our Services > Detection and Testing > Photovoltaic > Photovoltaic Products Testing

Grid-connected Photovoltaic Inverter Testing

As a core and critical device in PV power generation systems, the performance and reliability of grid-connected PV inverters directly determine the overall power generation efficiency, operational safety, and stability of the system, while also significantly affecting the grid's power quality and the compatibility of grid connection. During the testing process, we rely on high-precision measurement equipment and standardized test procedures to systematically acquire and quantitatively analyze key parameters of the inverter. These include conversion efficiency, Maximum Power Point Tracking (MPPT) performance, total harmonic distortion (THD), power factor, DC current injection, and Low Voltage Ride Through (LVRT) capability. Ultimately, based on detailed and accurate experimental data, we issue authoritative test reports that comply with international and national standards, providing a scientific basis for equipment performance evaluation and system optimization.

Tested Products

PV Inverters

PV-Storage Integrated (Hybrid / Battery-Ready) Inverters

Testing Items

Safety (PASS) Tests / Touch Current and Dielectric Strength Tests

Electrical Parameter Verification

Efficiency Test

Charging Performance

Discharging Performance

Charge-Discharge Transition (Switching) Performance

Power Quality

Active and Reactive Power Control

Fault Ride Through (FRT) / Low Voltage Ride Through (LVRT) / High Voltage Ride Through (HVRT)

Grid Adaptability / Grid Code Compliance (e.g., voltage/frequency tolerance)

Over/Under Voltage Protection (OUV/OUV) / Over/Under Frequency Protection (OUF/OUF)

Anti-Islanding Protection

Environmental Adaptability (Climate / Environmental Testing)

Salt Spray Corrosion Test

Ammonia Corrosion Test

Testing Standards

PV Inverters (Safety tests, electrical parameter verification, efficiency tests, power quality, active/reactive power control, fault ride through, grid adaptability, OUV/OUF protection, anti-islanding protection, environmental adaptability, salt spray, ammonia corrosion):

NB/T 32004 (Technical specification for grid-connected PV inverters), IEC 62109-1 (Safety of power converters for use in photovoltaic power systems — Part 1: General requirements), IEC 62109-2 (Safety of power converters for use in photovoltaic power systems — Part 2: Particular requirements for inverters)

PV-Storage Integrated (Hybrid) Inverters (Safety tests, electrical parameter verification, efficiency tests, charging/discharging performance, charge-discharge transition, power quality, active/reactive power control, fault ride through, grid adaptability, OUV/OUF protection, anti-islanding protection, environmental adaptability, salt spray, ammonia corrosion):

NB/T 32004, IEC 62109-1, IEC 62109-2, GB/T 34120 (Technical specification for power conversion system of electrochemical energy storage system), GB/T 34133 (Testing code for power conversion system of electrochemical energy storage system)

Service Advantages

Authoritative qualifications and recognized credibility.

Experienced technical team.

Comprehensive and advanced equipment.

Strong capability in keeping pace with the latest standards and their interpretation.