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Sarah Rönnberg, Mats Wahlberg, Math Bollen Luleå University of Technology, Sweden

Total conducted emission from a customer in the frequency range 2 to 150 kHz with different types of lighting. Sarah Rönnberg, Mats Wahlberg, Math Bollen Luleå University of Technology, Sweden. Introduction. Domestic customer

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Sarah Rönnberg, Mats Wahlberg, Math Bollen Luleå University of Technology, Sweden

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  1. Total conducted emission from a customer in the frequency range 2 to 150 kHz with different types of lighting Sarah Rönnberg, Mats Wahlberg, Math Bollen Luleå University of Technology, Sweden RÖNNBERG-SE-S2-0173

  2. Introduction • Domestic customer • Equipment commonly used in Swedish homes were installed at a test site. A total of 32 lamps were connected • Hotel • A total of 563 incandescent lamps in 76 rooms were replaced mostly LED lamps but also some CFL lamps RÖNNBERG-SE-S2-0173

  3. Four scenarios for a domestic costumer • Past • All lamps are incandescent • Present • Lamps are a mix of incandescent and CFLs • Future • Lamps are a mix of CFLs and LEDs • Far Future • All lamps are LEDs RÖNNBERG-SE-S2-0173

  4. 108 min load pattern Light 1, 2 and 3 were replaced for the four scenarios. All other equipment remained the same. RÖNNBERG-SE-S2-0173

  5. Root sum square of all components in thecurrent between 2 and 9 kHz for the four scenarios RÖNNBERG-SE-S2-0173

  6. 95% value of the current 9-95 kHz for the four different scenarios RÖNNBERG-SE-S2-0173

  7. Emission from a group of lamps RÖNNBERG-SE-S2-0173

  8. Emission from a group of lamps RÖNNBERG-SE-S2-0173

  9. Emission from the hotel 2 to 9 kHz RÖNNBERG-SE-S2-0173

  10. Emission from the hotel 9 to 70 kHz RÖNNBERG-SE-S2-0173

  11. Conclusions • CFLs and LEDs emit high frequency currents, as do other customer equipment • Customer equipment can also shunt high frequency currents • The emission seems to propagate between equipment to a higher degree than towards the grid RÖNNBERG-SE-S2-0173

  12. Thank you RÖNNBERG-SE-S2-0173

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