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首页> 外文期刊>Electric Power Components and Systems >Unbalanced Magnetic Force Mitigation and Torque Ripple Reduction in Eccentric Switched Reluctance Motors Using Flux Leakages
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Unbalanced Magnetic Force Mitigation and Torque Ripple Reduction in Eccentric Switched Reluctance Motors Using Flux Leakages

机译：使用漏磁的偏心开关磁阻电机的不平衡磁力减轻和转矩纹波减小

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摘要

In this article, a comprehensive method is introduced to redress eccentricity fault consequences. Two main effects of eccentricity faults include considerable increase in unbalanced magnetic force and torque ripple. Dependency of unbalanced magnetic force and torque ripple on eccentricity fault level is shown, and the possibility of compensating them via controlling currents in facing poles is proved. These objectives are accomplished through a novel converter that controls currents in poles of every phase such that one pole is responsible for nullifying unbalanced magnetic force and the facing pole is in charge of torque ripple reducing. The control algorithm is analyzed in details and through finite-element method and MATLAB/Simulink (The Math Works, Natick, Massachusetts, USA) is implemented on a 6/4 switched reluctance motor with 30% eccentricity fault level. The proposed strategy samples the flux leakage as the index both for occurrence and criterion for compensation of unbalanced magnetic force. The suggested method is designed such that there is no need to detect eccentricity fault direction, location, and type, which makes it cost effective and practical for a wide range of switched reluctance motors and applications.
机译：本文介绍了一种纠正偏心故障后果的综合方法。偏心故障的两个主要影响包括不平衡磁力和转矩脉动的显着增加。给出了不平衡磁力和转矩脉动对偏心故障水平的依赖关系，并证明了通过控制相向极中的电流来补偿它们的可能性。这些目的是通过一种新颖的转换器来实现的，该转换器控制每个相的极中的电流，以使一个极负责抵消不平衡的磁力，而面对的极负责减小转矩脉动。详细分析了控制算法，并通过有限元方法对MATLAB / Simulink（美国马萨诸塞州纳蒂克的Math Works公司，Math Works）在具有30％偏心率故障水平的6/4开关磁阻电机上进行了实现。所提出的策略对漏磁进行采样，作为漏磁的指标，作为发生和补偿不平衡磁力的标准。设计所建议的方法时，无需检测偏心故障的方向，位置和类型，这使其在各种开关磁阻电机和应用中都具有成本效益和实用性。

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