Presentation on theme: "Assessment of emission and signal propagation in electrical power systems in the 2 - 150 kilohertz range MO-AM3-2 Anders Larsson, Luleå University of Technology,"— Presentation transcript:
Assessment of emission and signal propagation in electrical power systems in the 2 - 150 kilohertz range MO-AM3-2 Anders Larsson, Luleå University of Technology, Sweden
Outline of the presentation Signal emitting equipment Measurement equipment Long term measurement High frequency components Emissions fluorescent lamps powered by HF-ballast Summary
Some signal emitting equipment in the frequency range from 2 to 150 kHz SMPS Power line communication Power Meter Concentrator
Summary Most of the distortion in this frequency range can be classified into: Narrowband components Broadband components Recurrent oscillations Our experience is that PLC generates the highest levels of emission in this frequency range in the LV power systems The emission from different ballast varies Cont->
When this equipment is installed in large numbers the components aggregate in different ways. This impacts how emission standards should be carried out The use of time-domain sampling instruments should be used even for the frequency range 9 – 150 kHz Different analyzing tools are needed to detect and quantify different components. It is shown that not only one analyzing tool should be used to disclose and describe different components in the measured signal Work is needed to close the gap in emission, compatibility and immunity standards
Further reading Larsson, A & Bollen, M 2009, 'Emission and immunity of equipment in the frequency range 2 to 150 kHz', i L Toma & B Otomega (red), 2009 IEEE Bucharest PowerTech Proceedings, IEEE, Piscataway, N.J., s. 2325-2329. Rönnberg, S, Wahlberg, M, Bollen, M, Larsson, A & Lundmark, M 2009, 'Measurement of interaction between equipment in the frequency range 9 to 95 kHz', CIRED 20th International Conference on Electricity Distribution, I E T Conference Publication Series, The Institution of Engineering and Technology, s. 231-234. Bollen, M, Ribeiro, P, Larsson, A & Lundmark, M 2008, 'Limits for voltage distortion in the frequency range 2 to 9 kHz', I E E E Transactions on Power Delivery, vol 23, nr 3, s. 1481-1487. Larsson, A, Bollen, M, Wahlberg, M, Lundmark, M & Rönnberg, S 2010, 'Measurements of high-frequency (2-150 kHz) distortion in low-voltage networks', I E E E Transactions on Power Delivery, vol 25, nr 3, s. 1749 - 1757. Larsson, A & Bollen, M 2010, 'Measurement result from 1 to 48 fluorescent lamps in the frequency range 2 to 150 kHz', 14th International Conference on Harmonics and Quality of Power (ICHQP), IEEE, Piscataway, NJ. Larsson, A 2011, On high-frequency distortion in low-voltage power systems, Doctoral thesis / Luleå University of Technology, Luleå tekniska universitet, Luleå.
Biography – Dr. Anders Larsson 2011 – Lecture, Luleå University of Technology 2011 – Ph.D, Luleå University of Technology 2007 – Licentiate degree, Luleå University of Technology