サイリスタによる動力用超音波を利用したホモジナイザ励振源の近似解析と設計

概要

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The latest application of high-power ultrasonic homogenizer system for oil-burning with boilers and diesel engines is extremely useful in fuel oil saving and clean combustion. The high-frequency thyristor inverters as its controlled power supply have been special interests on the basis of superior characteristics - low cost system, high-power output adaptability, maintenance free and so on. Among many types of high-frequency thyristor inverters, the reverse-conducting thyristor type of series-resonance inverter is disposed to be used for the remarkable features described below.<BR>(1) Decreasing the thyristor forward voltage is possible and the reverse voltage across the thyristor is nearly zero.<BR>(2) Output voltage characteristics is relatively good.<BR>(3) The distortion factors of output current and voltage are small.<BR>Accordingly this power-supply system is successfully for the usage of high-resonance sharpness of the series tuned circuit such as ultrasonic transducer systems. Analysis and design of the proposed power-supply by thyristors, connected some inductances in series with thyristors, are described by considering the current-overlapping commutation mode. This paper mainly describes the approximate analysis of high-frequency inverter type of ultrasonic generator by reverse-conducting thyristor, and explains the performance evaluations and the design procedures.
公益社団法人日本マリンエンジニアリング学会の論文