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Conducted Emissions – Harmonics on AC Power Lines

14. January 2024 17:16 by Christian in Electric Vehicle, EMC/EMI, EMC TEST PLAN, Noise Coupling, OEM Specs, Test Methods
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This test is intended to measure the level of harmonics generated by the DUT in configuration "REESS

This test is intended to measure the level of harmonics generated by the DUT in configuration "REESS charging mode coupled to the power grid" through its AC power lines in order to ensure it is compatible with residential, commercial and light industrial environments.

REESS means the rechargeable energy storage system that provides electric energy for electric propulsion of the vehicle

This CE testing must be performed per:

1. IEC 61000-3-2 for input current in charging mode ≤ 16 A per phase;
2. IEC 61000-3-12 for input current in charging mode > 16 A and ≤ 75 A per phase.

The measurements of even and odd current harmonics shall be performed up to the 40th harmonic.
The limits for single phase or three-phase DUTs in configuration "REESS charging mode coupled to the power grid" with input current ≤ 16 A per phase are given in Table 1 below:

The limits for single phase DUTs in configuration "REESS charging mode coupled to the power grid" with input current > 16 A and ≤ 75 A per phase are given in Table 2 below:

The limits for three-phase DUTs in configuration "REESS charging mode coupled to the power grid" with input current > 16 A and ≤ 75 A per phase are given in Table 3 below:

Test Setup and Procedure

  • The DUT must be in configuration "REESS charging mode coupled to the power grid".
  • The state of charge (SOC) of the traction battery shall be kept between 20 per cent and 80 per cent of the maximum SOC during the whole time duration of the measurement (this may lead to the measurement being split into different time slots with the need to discharge the vehicle’s traction battery before starting the next time slot).
  • If the current consumption can be adjusted, then the current shall be set to at least 80 per cent of its nominal value.
  • The observation time to be used for the measurements shall be as for quasi-stationary equipment as defined in Table 4 of IEC 61000-3-2.
  • The test set-up for single phase DUT in configuration "REESS charging mode coupled to the power grid" is shown in Figure 1 of Appendix 1 to Annex 17, ECE Regulation 10.
  • The test set-up for three-phase DUT in configuration "REESS charging mode coupled to the power grid" is shown in Figure 2 of Appendix 1 to Annex 17, ECE Regulation 10.

 

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