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サイリスタを用いた交流制御スイッチ


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Title: サイリスタを用いた交流制御スイッチ
Other Titles: AC control switch consisting of thyristor
Authors: 山田, 英二 / 梶原, 昭生 / 浦, 憲一郎
Authors (alternative): Yamada, Eiji / Kajiwara, Akio / Ura, Kenichiro
Issue Date: Feb-1971
Publisher: 長崎大学工学部 / Faculty of Engineering, Nagasaki University
Citation: 長崎大学工学部研究報告, (1), pp.36-43; 1971
Abstract: In the dimmers and motor driving apperatuses, AC control switches consisting of thyristor are generally used in order to control the AC power of load. Those switches control the load voltage by adjusting the firing angle of thyristor, so the equivalent power factor considered as the difference between source voltage and load current are more lagging than that of preadjusting in spite of load characteristic. And the larger the firing angle, the lagger the equivalent power factor. But if we can control the AC power by adjusting not only the firing angle but also the extinction angle of thyristor, this defect is improved regardless of load characteristic. In this paper we proposed this new type AC control switch and discussed on its basic characteristics which were a fundation of its applicatioh. At first constitution of AC control switch was mentioned in chapter 2 and two new circuits were proposed. And next supposing the switch circuits as an ideal switch, we discussed on basic characteristics of AC control switch as the effective value and fundamental component of load voltage (Section 3.1), current waveforms of inductive load ahd capacitive load (Section 3.2), and phase difference between source voltage and load current so on (Section 3.3). It is a strong point that AC control switches proposed in this paper can control the load voltage constant and phase difference between source voltage and current constant also. Then we proved those facts both analytically and experimentally with 6KVA apperatus.
URI: http://hdl.handle.net/10069/23747
ISSN: 02860902
Type: Departmental Bulletin Paper
Text Version: publisher
Appears in Collections:No.1

Citable URI : http://hdl.handle.net/10069/23747

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