タップ付き相間リアクトルを用いたブリッジ調相装置による自動力率調整

概要

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A phase modifier is needed in the power system. In this paper, a bridge phase modifier which is equipped with a tap change interphase reactor has been described. As this equipment is a rectifier essentially, it is desired to approach the input current to sinusoidal wave form. We have realized an application of the multi connection with multi tap interphase reactor. In the output sides of two sets of three-phase bridge which differ the phase by 30 degrees via phase shifting transformer, an interphase reactor with three taps is applied. A power transistor is connected to each tap respectively as a tap changing switch. The three phase bridge are constructed by using the power transistors. When this modifier is operating, the input current is a quasi-sinusoidal wave with 36 steps. We have applied this apparatus to the automatic power factor adjustment which depends on the proportional control. By means of this method, we have obtained the satisfactory results. The experimental results are shown.
山梨大学の論文