DSP based Minimum Input Power Control of Induction Motors
Date Issued
2004
Date
2004
Author(s)
Lin, Wen-Ching
DOI
zh-TW
Abstract
The induction motor (IM) is a high-efficiency machine when working close to its rated operating point. However at torques and/or speeds far from the rated values the efficiency is greatly reduced. This thesis presents a simple and useful techniques for the minimum input power method of the indirect vector-controlled induction motor drives. The minimum input power method is named Hybrid Technique which combines Loss Model Control (LMC) and Search Control (SC) method. We use the LMC approach to obtain the initial value of the flux and subsequently adjust it by the Search Control method. The hybrid technique is simple, easily realizable, and offer fast convergence. The inverter switching method is Space Vector PWM which makes the lower harmonic losses. The simulation results of the minimum input power method using MATLAB/SIMULINK are presented. A DSP TMS320LF2407A is to implement the hybrid technique. Experimental results show the effectiveness of the proposed technique. However, there is room for improvement.
Subjects
電壓空間向量波寬調變
損失模式控制
搜尋控制
Search Control
Space Vector Pulse Width Modulation
Loss Model Control
Type
thesis
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