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Electric propulsion using the permanent magnet synchronous motor without rotor position transducers.

机译：使用不带转子位置传感器的永磁同步电动机进行电推进。

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摘要

The permanent magnet synchronous motor (PMSM) is increasingly playing an important role in electric propulsion systems due to its many advantages over competing technologies. For successful operation of the PMSM, rotor position and speed information is required. A resolver or encoder attached to the shaft of the machine usually provides this information. Many applications, however, cannot tolerate the use of the position sensor because of space and weight limitations, reliability concerns, or packaging issues. Thus, there has been an intense interest in the development of a so-called position sensorless drive, where the PMSM stator itself is used as the rotor position sensor. In this work, a sensorless electric drive is developed for various undersea propulsion applications, where the rotor position sensor is often undesirable due to the harsh operating environment as well as space and weight limitations. In this work, an observer is developed which enables sensorless operation of the PMSM over a wide speed range. In addition, a method is presented for estimating the standstill rotor angle, an operating condition at which the rotor position observers are typically ill conditioned. In this work two design methodologies are applied to the sensorless electric drive application, including a model-based and a neural network-based approach. Implementation issues for the sensorless electric drive are discussed, and experimental results are presented in order to demonstrate the effectiveness of the proposed techniques to the sensorless PMSM.
机译：永磁同步电动机（PMSM）由于在竞争技术方面具有许多优势，因此在电力推进系统中的作用越来越重要。为了成功运行PMSM，需要转子位置和速度信息。安装在机器轴上的旋转变压器或编码器通常会提供此信息。但是，由于空间和重量的限制，可靠性问题或包装问题，许多应用无法忍受位置传感器的使用。因此，人们对开发所谓的无位置传感器驱动器非常感兴趣，在该驱动器中，PMSM定子本身被用作转子位置传感器。在这项工作中，开发了用于各种海底推进应用的无传感器电驱动器，在这些应用中，由于恶劣的操作环境以及空间和重量的限制，通常不希望使用转子位置传感器。在这项工作中，开发了一种观察器，它使PMSM可以在较宽的速度范围内进行无传感器操作。另外，提出了一种用于估计静止转子角的方法，静止角是转子位置观测器通常处于不适的工作状态。在这项工作中，两种设计方法应用于无传感器电驱动应用，包括基于模型的方法和基于神经网络的方法。讨论了无传感器电驱动的实现问题，并给出了实验结果，以证明所提出的技术对无传感器PMSM的有效性。

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