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單相誘導電動機의 振動토오크에 미치는 等價抵抗 및 等價리액턴스의 영향
吳兢烈 成均館大學校 1976 論文集 Vol.23 No.-
By the equivalent circuit that each circuit constant of sigle phase induction motor having space harmonics in its magnentic field are expressed in the terms of the circuit constants for the fundamental flux and are analyzed by the circuit constant ratios to the magnetizing reactance, the equation for the alternating torque with twice line frequency in the motor is induced, so effects of equivalent resistances and reactances on the alternating torque by the equation is determined. The effect, in such a case of space hanmonics in its magnetic field, it is certified that the motor has not alternating torque at starting and has the minimum value of alternating torque at a low slip too. Specially, it is verified that the effect of the third harmonic flux is very much, and the alternating torque of each harmonic motor is effected very much by each forward component of equivalent reactance.
공간고주파자속을 가진 콘덴서 전동기의 특성해석에 관한 연구
오경열,Keung Yul Oh 대한전기학회 1975 전기의 세계 Vol.24 No.1
In this paper, the electrical angle between two winding axes in the stator of the capacitor motor is put optional angle, deviding the space harmonics in its magnetic field of two windings and the leakage flux into the forward revolving field and the backward one by the revolving-field theory, its equivalent circuit which consider mutual induction between two windings is depicted. In the depicted equivalent circuit, the rotor resistance for the fundamental flux is devided into the resistance for the rotor bar and endring, and the rotor leakage reactance for the fundamental is devided into the skew leadage reactance and the other, and each circuit constants for each harmonics is expressed in terms of the circuit constants for the fundamental, so it mades easy to determine the characteristics for the capacitor motor. As the circuit constant ratios to the magnetizing reactance of the fundamental are used, motors which have same circuit constant ratios should be resembled in their characteristics.