Abstract This paper proposes a simplified current-rise model to estimate the steady state peak-current of the switched reluctance generator for variety of operational conditions such as speed, dc-link voltage, turn-off position and turn-off current level. This model requires machine magnetization characteristics which are obtained from an experimental setup of an 8/6 pole machine in this study. The current rise is estimated in a given generation interval using the turn-off current level and position as the information. This interval can be subdivided into multiple segments for better accuracy, however, this increment in number of sub-interval is beneficial up to certain extent. Interestingly, with the increased number of segments, the proposed model captures the dynamics of the current rise in the generation interval with good accuracy, except near to unaligned position. The proposed model is benchmarked against an existing non-linear model which uses energy-based approach. The model with 1, 5, and 10 segments give maximum error of 20 % , 7.1 % , and 6.6 % , respectively, in the estimation of peak-current. Thus, the proposed model with 5 or 10 segments can be used as a fast alternative to dynamic simulation models for steady state peak-current estimation.

中文翻译：

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使用在单脉冲模式下运行的开关磁阻发电机的简化电流上升模型进行峰值电流估计

摘要 本文提出了一种简化的电流上升模型，用于估计开关磁阻发电机在各种运行条件下的稳态峰值电流，例如速度、直流母线电压、关断位置和关断电流水平。该模型需要从本研究中 8/6 极电机的实验设置中获得的电机磁化特性。使用关断电流电平和位置作为信息来估计给定生成间隔中的电流上升。该区间可以细分为多个段以获得更好的精度，但是，这种子区间数量的增加在一定程度上是有益的。有趣的是，随着分段数量的增加，所提出的模型以良好的精度捕获了生成间隔中当前上升的动态，除了靠近未对齐的位置。所提出的模型以使用基于能量的方法的现有非线性模型为基准。具有 1、5 和 10 段的模型在峰值电流估计中的最大误差分别为 20%、7.1% 和 6.6%。因此，建议的 5 或 10 段模型可用作稳态峰值电流估计的动态仿真模型的快速替代方案。