Modeling and mitigation of acoustic noise in switched reluctance motor drives using mechanical impulse response

使用机械脉冲响应对开关磁阻电机驱动器中的声学噪声进行建模和缓解

• 批准号: 1610287
• 负责人: Babak Fahimi
• 金额: $ 32.81万
• 依托单位: University of Texas at Dallas
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-07-01 至 2019-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1610287&HistoricalAwards=false
• 关键词: Modeling; mitigation; acoustic; noise; switched

Electric motors consume nearly fifty percent of the electricity that is generated worldwide. Integration of adjustable speed motor drives plays a pivotal role in increasing efficiency, reliability and performance in these energy converters and is considered a necessary step in the future energy systems across the globe. Electrified transportation, home appliances and industrial drives are among the primary candidates for this transformation. Switched reluctance motor (SRM) drives can provide a low cost, robust and fault tolerant solution for these applications. However, high levels of acoustic noise and vibration in this family of drives has limited their use in many applications. This project addresses this shortcoming by introducing a new computational tool that will allow for optimal tuning of the design and control to minimize this undesirable feature of SRM drives. It is hoped that effective use of the proposed method will open new horizons for integration of this technology in various sectors of the industry, thereby providing a low cost and highly efficient alternative for use in affordable and energy saving products.The proposed method is based on the use of the electromechanical impulse response for machine modeling and analysis. This innovative tool provides an experimentally measurable link between the terminals of the power electronic converter and acceleration of the stator frame. This, in turn, will allow for online tuning of the vibration and acoustic noise that is generated by virtue of the radial and tangential vibrations in the stator frame of SRM drives. Furthermore, the proposed method substantially reduces the computational efforts in optimal design of the electromechanical features of SRM drives. In addition, cross coupling between the rotor and stator and nonlinear dynamics of the SRM drive will be taken into account in the work. Furthermore, the impact of wide-bandgap devices on structural response of SRM drives will be investigated. The proposed method will be investigated through detailed multi-physics finite element analysis and experiments. Successful completion of this project will (a) create new opportunities in applying the proposed method to other electric motors, inductors, transformers and generators; (b) educate a new generation of motor experts with insightful understanding of electromechanical energy conversion, vibration and power electronics; and (c) provide a better understanding of magneto-structural phenomena in electric machines and adjustable speed drives.

电动机消耗了近50％的全球电力。可调式速度电动机驱动器的整合在提高这些能量转换器的效率，可靠性和性能方面起着关键作用，并且被认为是全球未来能源系统的必要步骤。 电气化运输，家用电器和工业驱动器是这种转变的主要候选者。开关不情愿电动机（SRM）驱动器可以为这些应用提供低成本，健壮和容错的解决方案。但是，这种驱动器系列中的高度声音和振动限制了它们在许多应用中的使用。该项目通过引入一种新的计算工具来解决这一缺点，该工具将允许对设计和控制的最佳调整，以最大程度地减少SRM驱动器的这种不良功能。希望有效利用所提出的方法将为该技术在行业的各个领域的整合开辟新的视野，从而提供低成本和高效的替代品，用于可负担得起的能源和节能产品。该提出的方法基于使用机电脉冲响应的机器建模和分析。该创新工具提供了一个实验可测量的连接，在电源电子转换器的端子和定子框架的加速度之间。反过来，这将允许通过SRM驱动器定子框架中的径向和切向振动产生的振动和声音噪声在线调整。此外，提出的方法大大减少了SRM驱动器机电特征的最佳设计中的计算工作。此外，在工作中将考虑转子和定子之间的交叉耦合以及SRM驱动器的非线性动力学。此外，将研究宽带设备对SRM驱动器结构响应的影响。提出的方法将通过详细的多物理有限元分析和实验来研究。该项目的成功完成将（a）在将提出的方法应用于其他电动机，电感器，变压器和发电机中创建新的机会； （b）对新一代的运动专家教育，对机电能量转换，振动和电力电子设备有深刻的了解； （c）可以更好地了解电机中的磁结构现象和可调节速度驱动器。