| 摘要 |
PURPOSE:To prevent that higher harmonic wave is currented in power supply system, by connecting a transformer which has a plurality of windings in parallel to load, and making same higher harmonic wave current as higher harmonic wave current which is generated by load to generate in by an inverter. CONSTITUTION:The device is formed such that a transformer 1 which is connected to load 5 in parallel has windings N1-N4, output of the winding N2 is connected to a rectifier 2 primary winding N1, this output is supplied to induction type parallel inverter 3 which composes main circuit with thyristors TH3, TH4 and the winding N4 through the winding N3, direct current power is supplied from an intermiddle tap of the winding N4, and alternating current is given to alternating current source through the transformer 1. Therefore, higher harmonic wave current whose gratitude and the phase is met with those of higher harmonic wave which is generated by power supply to load 5 can be obtained as output of the inverter 3, and higher harmonic wave current can be almost perfectly removed from the power supply system. |
