Analysis and Design of Flux Reversal Machines

ECS-9802454 NASAR拟议研究的总体目的是发展分析和设计磁通反转机的方法。与现有的永磁磁阻同步电机相比，FRM具有更高的性能潜力。它具有结构简单、坚固耐用、功率密度较高、效率高等特点，特别适合高速应用。提案内文表一将联邦德国与其他竞争者进行了比较。提案中还列出了FRM的相对优势。由于FRM是一项最近的发明，有关这一主题的文献几乎不存在。这项拟议的研究旨在对作为发电机和电机运行的三相FRM进行明确的基础研究。然而，这项研究的方法预计也适用于其他类型的永磁磁阻同步电机。总体而言，拟议研究的主要目标是制定财政调节机制的分析和设计原则。这一目标预计将通过以下步骤实现：(I)对各种定子和转子极组合的磁场和转矩进行深入的有限元分析(FEA)(使用标准软件)。(Ii)推导出包括饱和效应在内的电机参数和感应电动势的表达式。(3)对稳态和暂态条件下的电机特性进行数字仿真。(4)获得损失机制的数学模型。(V)制订机器的设计方程式。(六)以最小质量、最大效率为约束条件优化设计。(Vii)建造和测试原型。()为机器的最优运行设计控制方案。拟议的研究将导致FRM的基本分析原则和设计技术，从而评估其在各种应用中的潜力。这些原理和技术有望适用于其他类型的永磁磁阻电机，这就是所提出的研究的内在价值所在。最后，预计至少有两名研究生将在参与该项目期间获得硕士/博士学位。在理论发展方面，将对机器中的场和力进行彻底的有限元分析。预计有限元分析将提供机器参数，并帮助评估铁心和磁体的损耗。在确定了电机参数后，将开发一个数字仿真模型，并用于确定电机的稳态和暂态特性。设计将继续进行。最初，将沿着设计公式中的经典路线推导并使用该公式来设计原型。最终，设计将针对最小质量和最高效率条件进行优化(使用标准程序，如胡克-吉夫斯法)。最后，将建造和测试一个原型(主要是在斯特林技术公司的帮助下)。

ECS-9802454 Nasar The overall purpose of the proposed research is to develop methods of analysis and design of the flux reversal machine(FRM). The FRM offers a potential for superior performance compared to existing permanent-magnet reluctance synchronous machines. It has a simple and robust construction, relatively high power density, high efficiency, and is especially suited for high-speed applications. Table I in the text of the proposal compares the FRM with other contenders. Relative advantages of the FRM are also listed in the proposal. Because the FRM is a recent invention, literature on the subject is virtually nonexistent. The proposed research is targeted toward a definitive fundamental study of three-phase FRMs operating as generators and motors. The approach to this research, however, is expected to be applicable to other types of permanent-magnet reluctance synchronous machines. In general terms, the principal objective of the proposed research is to formulate the principles of analysis and design of the FRM. This goal is expected to be achieved in the following steps: (i) Perform an in-depth finite element analysis(FEA) of fields and torque for various stator and rotor pole combinations(using a standard software). (ii) Derive expressions for the machine parameters and induced EMFS, including the effects of saturation. (iii) Digitally simulate the machine characteristics under steady-state and transient conditions. (iv) Obtain mathematical models for loss mechanisms. (v) Formulate design equations for the machine. (vi) Optimize the design for minimum mass and maximum efficiency constraints. (vii) Build and test a prototype. (viii) Design a control scheme for an optimal operation of the machine. The proposed research will lead to the basic principles of analysis and techniques of design of the FRM, and thereby assess its potential for various applications. These principles and techniques are expected to be applicable to other types of permanent magnet reluctance machines, and herein lies the intrinsic merit of the proposed research. Finally, at least two graduate students are expected to earn their MS/PhD while working on the project. In terms of theoretical development, a thorough FEA of the fields and forces in the machine will be conducted. FEA is expected to yield the machine parameters and aid in the evaluation of losses in the core and magnets. Having determined the machine parameters, a digital simulation model will be developed and used to determine the machine steady-state and transient characteristics. The design will proceed. initially, along classical lines in that design formulas will be derived and used to design a prototype. Ultimately, the design will be optimized for minimum mass and maximum efficiency conditions(using a standard procedure such as the Hooke-Jeeves method). Finally, a prototype will be built and tested(primarily with the help Of Stirling Technology Company).