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New optimal high efficiency DSP-based digital controller design for super high-speed permanent magnet synchronous motor.

机译：基于超高效DSP的新型最佳高效数字控制器设计，用于超高速永磁同步电动机。

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摘要

This dissertation investigates digital controller and switch mode power supply design for super high-speed permanent magnet synchronous motors (PMSM). The PMSMs are a key component for the miniaturic cryocooler that is currently under development at the University of Central Florida with support from NASA Kennedy Space Center and the Florida Solar Energy Center. Advanced motor design methods, control strategies, and rapid progress in semiconductor technology enables production of a highly efficient digital controller. However, there are still challenges for such super high-speed controller design because of its stability, high-speed, variable speed operation, and required efficiency over a wide speed range. Currently, limited research, and no experimental analysis, is available concerning such motors and their control system design.; The stability of a super high-speed PMSM is an important issue particularly for open-loop control, given that PMSM are unstable after exceeding a certain applied frequency. In this dissertation, the stability of super high-speed PMSM is analyzed and some design suggestions are given to maximize this parameter.; For ordinary motors, the V/f control curve is a straight line with a boost voltage because the stator resistance is negligible and only has a significant effect around the DC frequency. However, for the proposed super high-speed PMSM the situation is quite different because of the motor's size. The stator resistance is quite large compared with the stator reactive impedance and cannot be neglected when employing constant a V/f control method. The challenge is to design an optimal constant V/f control scheme to raise efficiency with constant V/f control.; In the development, test systems and prototype boards were built and experimental results confirmed the effectiveness of the dissertation system.
机译：本文研究了超高速永磁同步电动机的数字控制器和开关电源设计。 PMSM是微型低温冷却器的关键组件，该微型冷却器目前正在中央佛罗里达大学开发，并得到了NASA肯尼迪航天中心和佛罗里达太阳能中心的支持。先进的电机设计方法，控制策略以及半导体技术的飞速发展，使得能够生产出高效的数字控制器。但是，由于这种超高速控制器的稳定性，高速，变速操作以及在宽速度范围内所需的效率，因此仍然存在挑战。当前，关于这种电动机及其控制系统设计的研究有限，没有实验分析。鉴于PMSM在超过一定的应用频率后会变得不稳定，因此，超高速PMSM的稳定性尤其是对于开环控制而言是一个重要的问题。本文对超高速永磁同步电机的稳定性进行了分析，并提出了使该参数最大化的一些设计建议。对于普通电动机，V / f控制曲线是带有升压电压的直线，因为定子电阻可以忽略不计，并且仅在DC频率附近具有显着影响。但是，对于建议的超高速PMSM，由于电动机的尺寸，情况大不相同。与定子电抗相比，定子电阻很大，在采用恒定的V / f控制方法时不能忽略。挑战在于设计一种最佳的恒定V / f控制方案，以通过恒定V / f控制提高效率。在开发过程中，构建了测试系统和原型板，实验结果证实了论文系统的有效性。

著录项

  • 作者

    Zhao, Limei.;

  • 作者单位

    University of Central Florida.;

  • 授予单位 University of Central Florida.;
  • 学科 Engineering Electronics and Electrical.
  • 学位 Ph.D.
  • 年度 2005
  • 页码 129 p.
  • 总页数 129
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 无线电电子学、电信技术;
  • 关键词

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