三相不平衡・力率同時補償用サイリスタ制御電流源に関する研究

概要

論文の詳細を見る
A new method of not only balancing the fundamental currents of unbalanced three phase circuit but also correcting the power factor of its circuit is presented. The principle of this method is as follows. The three phase current source which consists of two single phase sinusoidal current sources is connected in parrallel to the unbalanced three phase circuit. The current source is always adjusted to produce the negative sequence current that is equal in magnitude with the negative sequence current of the load but 180° out of phase. Therefore, the supply current is balanced. The current source is always adjusted not to produce the real part of the positive sequence current so that the power dissipation does not occure in the apparatus. But the imaginary part of the positive sequence current of the apparatus is controlled to correct the power factor of the circuit. In this paper, the author discusses the following items. 1) Principle and operation of the thyristor-controlled current source. 2) Relation between the producing negative sequence current and the current of the apparatus. 3) Relation between the reactive power for power factor correction and the current of the apparatus. 4) The capacity of the apparatus.
明治大学の論文