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首页> 外文期刊>Magnetics, IEEE Transactions on >Automatic Differentiation for Sensitivity Calculation in Electromagnetism: Application for Optimization of a Linear Actuator
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Automatic Differentiation for Sensitivity Calculation in Electromagnetism: Application for Optimization of a Linear Actuator

机译:电磁敏感度计算的自动微分:线性致动器优化的应用

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摘要

Automatic differentiation (AD) is introduced as a powerful technique to compute derivatives of functions given in the form of computer programs in high-level programming languages such as FORTRAN, C, or C++. This paper applies AD to compute error-free gradients of electromagnetic device sizing models. Then, the obtained gradients are exploited in optimization to size electromagnetic devices by means of minimizing a cost function with constrained parameters and performances. Often, the electromagnetic devices models have to be described not only by analytical formulas, but also by algorithms. This paper proposes an electromagnetic model of a linear actuator dealing with implicit equations solved by numerical algorithms. The ADOL-C package is considered for automatic differentiation.
机译:自动微分(AD)是一种强大的技术,可用于以高级编程语言(例如FORTRAN,C或C ++)计算以计算机程序形式给出的功能的派生类。本文将AD用于计算电磁设备尺寸模型的无误差梯度。然后,通过最小化具有受限参数和性能的成本函数,将获得的梯度用于优化电磁设备的尺寸。通常,不仅必须通过解析公式来描述电磁设备模型,而且还必须通过算法来描述电磁设备模型。本文提出了一种线性执行器的电磁模型,用于处理由数值算法求解的隐式方程。考虑将ADOL-C软件包用于自动区分。

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