逆变器EMC测试

TEST ITEMS:

• Conducted disturbance voltage at mains terminals

• Electromagnetic radiation disturbance

• Harmonic current emission

• Voltage fluctuations and flicker
  

• Electrostatic Discharge (ESD)
  

• Radio frequency electromagnetic field

• Fast transients

• Surges

• Radio frequency, common mode

• Voltage dips

• Power frequency magnetic field

Description of Equipment Under Test (EUT):

The testing unit is a Class I grid-interactive PV inverter for outdoor installation (IP65).

The unit is providing EMC filtering at the output toward mains.

The unit does not provide galvanic separation from input to output(transformerless).

The output is switched off redundant by the high power switching bridge and two relays. This assures that the opening of the output circuit will also operate in case of one is error.

TEST STANDARDS:

EN IEC 61000-6-1: 2019: Electromagnetic compatibility (EMC) – General standards- Immunity for residential, commercial and light-industrial environment.

EN 61000-6-3: 2007/+A1: 2011: General standards – Emission standard for residential, commercial and light-industrial environment