静止形電力用3逓倍装置-自然転流型のゲート制御回路について-

概要

論文の詳細を見る
The new firing scheme for an analog trigger circuit of a naturally commutated tripler is described. This static power frequency changer is used to produce triple frequency 1-phase output from a 60Hz 3-phase supply. Compared with what it was, the working transformer is smaller roughly 1/10 times than transformers using a conventional tripler. By using this trigger circuit, the tripler is operated stably in a wide range of R or L loads. Consequently, it doesn't need the current limiting reactors and has a quickly response for a load variation. The power efficiency is high but the input power factor is inherently low as a lagging current operation. The low power factor will be generally corrected to close to unity by using capacitors or a pair combination of leading current type triplers.