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The lumped equivalent circuit parameters and distributed parameters of a line at high frequency are a little different from those at power frequency, because of distribution effects. The paper derives the formulas to get the lumped equivalent circuit parameters and distributed parameters from open circuit and short circuit harmonic impedance, and the actual measurement was carried out on a three phases...
Harmonic impedance is a key parameter for filter design and assessment of harmonic emission level. Till present, there is no simple and convenient measurement method and instrument for determining harmonic impedance. Due to lack of basic system parameters, error in harmonic impedance calculation is great. This paper investigates a harmonic impedance measurement method named increments in harmonic...
At the point of common coupling, there are many cases where the phase-angle difference between harmonic vectors is unknown. In practice, for example, in calculating the steady-state rating of the ac passive harmonic filter, the arithmetic summation method is often used in determining the maximal harmonic level. This summation law is very conservative as it may result in high cost of equipment ratings...
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