A NEW SOFT STARTING METHOD FOR WOUND-ROTOR INDUCTION MOTOR

被引：4
|
作者：
Sharifian, Mohammad Bagher Bannae [1 ]
Feyzi, Mohammad Reza [1 ]
Sabahi, Mehran [1 ]
Farrokhifar, Meysam [1 ]
机构：
[1] Univ Tabriz, Fac Elect & Comp Engn, Elect Power Dept, Tabriz, Iran
来源：
JOURNAL OF ELECTRICAL ENGINEERING-ELEKTROTECHNICKY CASOPIS | 2011年 / 62卷 / 01期
关键词：
induction motors; starting methods; rotor impedance; starting torque;
D O I：
10.2478/v10187-011-0005-3
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Starting of a three-phase Induction motor using a starter rheostat in rotor circuit has some disadvantages. A new method for starting of a three-phase motor by using a parallel combination of resistors, self-inductors and capacitors in rotor circuit is proposed in this paper. The proposed method ensures the soft and higher starting torque as well as limited starting current as compared to shorted rotor method. The characteristic curves for both methods (shorted rotor and rotor with added elements) are provided. The mathematical model based on the steady-State equivalent circuit of the induction motor is expanded in frequency domain and the required computer program is prepared using an optimization method. The values for added elements to rotor circuit are calculated in such a way that minimum starting time considering current and torque limitations are achieved.
引用
收藏
页码：31 / 36
页数：6
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