Motor parameter variation in vector controlled induction motor

被引:0
|
作者
Rafajlovski, G [1 ]
Nikoloski, L [1 ]
机构
[1] Univ St Kiril & Metodij, Dept Elekt Mach, Electrotech Fak, Skopje 91000, Macedonia
来源
MELECON '98 - 9TH MEDITERRANEAN ELECTROTECHNICAL CONFERENCE, VOLS 1 AND 2 | 1998年
关键词
D O I
暂无
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
The aim of this paper is to compare the influence of parameter uncertainties on the performance of two vector oriented control schemes of electrical drive with induction motor. In the first one the field oriented control method is used to control the speed of induction motor. In this system the spatial vector of the stator current is transformed into a i(1q) component which creates the torque, and into a i(1d) component which creates the flux. If d-axis component of the stator current is of constant value, the motor drives with a constant flux and the torque can be altered rapidly by means of the q-axis component of the stator current i(1q). Two components U-1d, U-1q Of stator voltages in d-q coordinate system which must be applied to the stator d-q equivalent windings, are generated by two PI regulators controlling the two components: flux-generating and torque generating stator current. In the second one the stator flux oriented control method is used to control the torque of induction motor. By using instantaneous voltage space vectors with selection of optimum inverter switching modes employing vector modulation technique, the direct control of torque and stator flux is achieved.
引用
收藏
页码:1057 / 1061
页数:5
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