U.S.-UK Cooperative Research: Advanced Modeling Techniques for Brushless Doubly-Fed Electrical Machines

美英合作研究：无刷双馈电机的先进建模技术

• 批准号: 9014105
• 负责人: Alan Wallace
• 金额: $ 1.58万
• 依托单位: Oregon State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-12-01 至 1992-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9014105&HistoricalAwards=false
• 关键词: U.S.; UK; Cooperative; Research; Advanced

This award will support cooperative research in electrical engineering between Dr. Alan Wallace, Oregon State University, and Professor Stephen Williamson, Cambridge University, England. The objective of the proposed project is to investigate advanced modelling techniques for brushless doubly-fed electrical machines (BDFM's), a new development in adjustable-speed drive and variable-speed generation systems. At Oregon State University, two proof-of-concept machines have already been built and linear mathematical models have been developed, which give performance predictions which correlate with test results at specific conditions. However, the BDFM is intended for operation over a wide range of speed, frequency, and magnetic loading. Under such conditions, saturation and hysteresis in magnetic materials, and skin-effects in large sectional conductors make linear models inadequate for design purposes. The most advanced techniques to handle nonlinear analysis and design of conventional-cage rotors have been developed by Professor Williamson of Cambridge University. These techniques, which periodically utilize finite element analyses of internal machine fields to determine revised values of linear model parameters, appear to offer the best chance of modification to cover the unique BDFM rotor configurations. The US principal investigator proposes to adapt the Cambridge techniques for inclusion in Oregon State University's models of BDFM in order to develop detailed design for specific applications currently being selected at OSU. The results of this research will make an important contribution to the potential commercial viability of BDFM's.

该奖项将支持俄勒冈州立大学的Alan Wallace博士和英国剑桥大学的Stephen Williamson教授在电气工程方面的合作研究。该项目的目标是研究无刷双馈电机（BDFM）的先进建模技术，这是调速驱动和变速发电系统的新发展。在俄勒冈州立大学，已经建造了两台概念验证机器，并开发了线性数学模型，可以根据特定条件下的测试结果进行性能预测。然而，BDFM的目的是操作在宽范围的速度，频率和磁负载。在这种情况下，磁性材料的饱和和迟滞，以及大截面导体的集肤效应使得线性模型不适合设计目的。剑桥大学的Williamson教授开发了处理传统保持架转子非线性分析和设计的最先进技术。这些技术定期利用内部机器场的有限元分析来确定线性模型参数的修正值，似乎提供了最好的修改机会，以覆盖独特的BDFM转子配置。美国首席研究员建议将剑桥技术纳入俄勒冈州立大学的BDFM模型，以便为俄勒冈州立大学目前选择的特定应用开发详细设计。这项研究的结果将对BDFM的潜在商业可行性做出重要贡献。