The lack of knowledge of the harmonic frequency behaviour of the extra-high-voltage (EHV) transmission network prevents the possibility to choose, at the design stage, an appropriate system for harmonic mitigation for current harmonic source loads directly fed by the transmission network, as well as arc furnaces and facilities for thermonuclear fusion researches. The paper describes the methodology employed to determine the harmonic network impedance from current and voltage measurement seen at the Camin-Padova node of the Italian transmission network, in which are injected the current harmonics produced by the reversed field pinch experiment (RFX) fusion facility; in particular, a simple method for precise measurement of voltage harmonics is presented in detail.
400kV network harmonic impedance evaluation from the harmonic distortion measurement at the RFX site
BETTINI, PAOLO;
1998
Abstract
The lack of knowledge of the harmonic frequency behaviour of the extra-high-voltage (EHV) transmission network prevents the possibility to choose, at the design stage, an appropriate system for harmonic mitigation for current harmonic source loads directly fed by the transmission network, as well as arc furnaces and facilities for thermonuclear fusion researches. The paper describes the methodology employed to determine the harmonic network impedance from current and voltage measurement seen at the Camin-Padova node of the Italian transmission network, in which are injected the current harmonics produced by the reversed field pinch experiment (RFX) fusion facility; in particular, a simple method for precise measurement of voltage harmonics is presented in detail.
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