论文标题

数据集说明:识别电动机背后的物理 - 数据驱动的电气行为学习(第二部分)

Data Set Description: Identifying the Physics Behind an Electric Motor -- Data-Driven Learning of the Electrical Behavior (Part II)

论文作者

Hanke, Sören, Wallscheid, Oliver, Böcker, Joachim

论文摘要

记录了一个数据集,以评估从测量数据中提取三相永久磁体同步电动机(PMSM)的数学模型的不同方法,并从测量数据中提取了两级IGBT逆变器。它由大约4000万个驱动器操作范围的多维样品组成。本文档介绍了如何使用已发布的数据集\ cite {dataset}以及如何使用介绍性示例提取模型。这些示例基于已知的普通微分方程,最小二乘方法或(深)机器学习方法。提取的模型用于在模型预测控制(MPC)环境中预测系统状态。在模型偏差的情况下,利用MPC的性能仍低于其潜力。最新的白色框模型就是这种情况,这些模型仅基于标称驱动参数,仅在有限的操作区域中有效。此外,白盒模型通常不涵盖许多寄生效应(例如,从进食逆变器中)。为了实现高控制性能,有必要使用涵盖所有操作点中电动机行为的模型。

A data set was recorded to evaluate different methods for extracting mathematical models for a three-phase permanent magnet synchronous motor (PMSM) and a two-level IGBT inverter from measurement data. It consists of approximately 40 million multidimensional samples from a defined operating range of the drive. This document describes how to use the published data set \cite{Dataset} and how to extract models using introductory examples. The examples are based on known ordinary differential equations, the least squares method or on (deep) machine learning methods. The extracted models are used for the prediction of system states in a model predictive control (MPC) environment of the drive. In case of model deviations, the performance utilizing MPC remains below its potential. This is the case for state-of-the-art white-box models that are based only on nominal drive parameters and are valid in only limited operation regions. Moreover, many parasitic effects (e.g. from the feeding inverter) are normally not covered in white-box models. In order to achieve a high control performance, it is necessary to use models that cover the motor behavior in all operating points sufficiently well.

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