We have developed and proposed a novel active filter system composed of inverter bypass circuit for suppression of harmonic resonance condition caused between the inductance behind the load bus and the capacitance of var equipment especially at lower harmonic frequencies.
We have installed this new scheme of harmonic compensation system in combination with TCR-type SVC and shunt LC filters at the Yamanashi Maglev Test Line.
We will describe the outline of the reactive power and harmonic compensation systems, and harmonic resonance test results which show satisfactory performance of the active filter.
