The results of an electromagnetic field survey which was carried out in the Terna SpA AC/DC conversion plant of the 500 MW 400 kV HVDC link between Italy and Greece are presented. The survey is performed in the framework of the research project TIPE (Transmission Infrastructure for Power Exchange), financed by the Piedmont Region. Static and time-varying magnetic fields and radiofrequency electric fields were measured in different areas of the substation outside the valve hall building. Attention was focused on detecting and quantifying the field levels associated with the harmonics injected by the converters both in the AC and DC side. To this end, the time behaviours of the generated magnetic field were recorded and analyzed in the frequency domain up to 400 kHz. From the analysis of the measured data, an overview of the magnetic emissions close to the conversion area is obtained. Conformity with the prescriptions concerning workers exposure is found. Considerable contributions to the exposure are found to be due to the harmonics injected by the converter in the DC side.
Measurement of magnetic and electromagnetic fields in a HV AC/DC conversion substation / Borsero, Michele; Crotti, Gabriella; Vizio, G; Zilberti, Luca. - (2009), pp. 368-373. (Intervento presentato al convegno 16th International Symposium on High Voltage Engineering, ISH2009 tenutosi a Cape Town (SouthAfrica) nel August 2009).
Measurement of magnetic and electromagnetic fields in a HV AC/DC conversion substation
BORSERO, MICHELE;CROTTI, GABRIELLA;ZILBERTI, LUCA
2009
Abstract
The results of an electromagnetic field survey which was carried out in the Terna SpA AC/DC conversion plant of the 500 MW 400 kV HVDC link between Italy and Greece are presented. The survey is performed in the framework of the research project TIPE (Transmission Infrastructure for Power Exchange), financed by the Piedmont Region. Static and time-varying magnetic fields and radiofrequency electric fields were measured in different areas of the substation outside the valve hall building. Attention was focused on detecting and quantifying the field levels associated with the harmonics injected by the converters both in the AC and DC side. To this end, the time behaviours of the generated magnetic field were recorded and analyzed in the frequency domain up to 400 kHz. From the analysis of the measured data, an overview of the magnetic emissions close to the conversion area is obtained. Conformity with the prescriptions concerning workers exposure is found. Considerable contributions to the exposure are found to be due to the harmonics injected by the converter in the DC side.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
