A Study on Switching Intervals in Classic DTC for Induction Motor

Q3 Energy
A. Ghayebloo, S. Shiri
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引用次数: 0

Abstract

In this paper, a conceptual study on switching intervals in the classic direct torque control (DTC) method and a novel modified method have been proposed. In the switching table of classic DTC, the switching vectors have been changed in sectors with 60 degrees intervals and their boundaries are fixed. In this study, these fixed boundaries and length of switching intervals have been challenged and proved that the performance of the classic DTC can be improved with modified intervals with different lengths and boundaries. The final proposed switching table not also benefits simplicity of implementation as classic DTC switching table, but also it offers better performance especially in the aspect of low torque ripples. The proposed final switching table has been derived by a two-stage optimization process and the results have been proved by simulation results.
经典异步电动机直接转矩控制开关间隔的研究
本文对经典直接转矩控制(DTC)方法中的切换间隔进行了概念研究,并提出了一种新的改进方法。在经典的DTC开关表中,开关向量在60度间隔的扇区内改变,扇区边界是固定的。在本研究中,对这些固定的边界和切换间隔长度进行了挑战,并证明了采用不同长度和边界的修改间隔可以提高经典DTC的性能。最后提出的开关表不仅具有实现简单的优点,而且在低转矩脉动方面具有更好的性能。通过两阶段优化得到了最终的开关表,仿真结果验证了优化结果的正确性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Iranian Journal of Electrical and Electronic Engineering
Iranian Journal of Electrical and Electronic Engineering Engineering-Electrical and Electronic Engineering
CiteScore
1.70
自引率
0.00%
发文量
13
审稿时长
12 weeks
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