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No.16 (1978/09) >

Title :トランジスタ式無整流子電動機の特性と複巻界碰巻線の効果について
Title alternative :On the Characteristics of Transistor-Commutatorless Motor and Effects of Compound Winding
Authors :親盛, 克治
伊波, 善清
Authors alternative :Oyamori, Katsuji
Iha, Zensei
Issue Date :1-Sep-1978
Abstract :As the induced-voltage commutation type commutatorless motor (Thy-CLM) does not need external commutation elements such as capacitors and reactors, its construction is simple compared with the compulsive commutation type CLM. But, as the commutation of the thyristors depends on the armature induced-voltage, the setting angle has to be equal to or larger than the commutation margin angle. Therefore, for the Thy-CLM, if the setting angle is smaller than the commutation‐margin angle, its normal operation as well as its starting are imposible. This paper describes the effects of the cumulative-and differential-compound field windings over the load characteristics of the transistor-CLM(TR-CLM), based on the experiments, and the following results are obtained. (1) For the TR-CLM the setting angle can be chosen in a range wider than that for the Thy-CLM, and therefore the former is superior in starting and steady operation characteristics. (2) The differential-compond field winding results in a good constant speed characteristic, but in a heavy load condition, the powerfactor and efficiency decline. (3) The cumulative-compound field winding suppresses the decrease of the load leading-angle, and the load limit is widened. Therefore, this scheme is particularly useful when applied to the Thy-CLM.
Type Local :紀要論文
ISSN :0387-429X
Publisher :琉球大学理工学部
URI :http://hdl.handle.net/20.500.12000/27514
Citation :琉球大学理工学部紀要. 工学篇 = Bulletin of Science & Engineering Division, University of the Ryukyus. Engineering no.16 p.127 -138
Appears in Collections:No.16 (1978/09)

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