基于非晶合金材料的新型高速高频永磁电机损耗-散热模型与电磁综合设计研究

项目名称： 基于非晶合金材料的新型高速高频永磁电机损耗-散热模型与电磁综合设计研究

项目编号： No.51307111

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 电工技术

项目作者： 佟文明

作者单位： 沈阳工业大学

项目金额： 26万元

中文摘要： 非晶合金是一种新型软磁材料，具有高磁导率、低磁滞、涡流损耗的优异电磁性能，特别适合用作高速高频电机的铁心材料。然而，由于非晶带材薄、脆、硬，外形尺寸受限，损耗性能对应力敏感，且现有设计计算方法不能充分发挥非晶电机优越性等因素，制约了其在电机中的应用。本课题首先通过分析计算和实验研究，提出与材料机械特性和电磁特性相适应的高速高频永磁电机新型拓扑结构；其次，建立高速高频非晶合金永磁电机铁耗计算模型，揭示不同结构工艺对铁耗的影响规律，以充分发挥非晶电机铁耗小的优点；然后，探明非晶合金铁心的导热性能及其影响因素，建立基于流固耦合的高速高频非晶合金电机共轭传热模型，在此基础上提出高效的散热系统；最后，建立高速高频非晶合金电机以频率为自由变量的电磁综合设计模型，以实现高效和高功率密度目标。研究解决上述非晶合金高速高频永磁电机的相关科学问题，形成具有自主知识产权的创新成果,具有重要理论意义。

中文关键词： 非晶合金；高速高频永磁电机；非晶铁心工艺；损耗；散热

英文摘要： As a new type of soft magnetic material, amorphous alloy has excellent electromagnetic properties such as high permeability, low hysteresis losses and eddy current losses. It particularly suits for iron core material of high-speed high-frequency motor. However, due to the characteristics of thin, brittle, hard, limited physical size and sensitive to mechanical stress, amorphous alloy used in electrical machines is restricted. The new type of topologies of high-speed high-frequency permanent magnet machine will be presented in this subject according to the mechanical and electromagnetic properties of amorphous material firstly. Sencondly, a calculation model of iron losses for high-speed high-frequency amorphous alloy permanent magnet machine is established. In order to give full play to the advantages of low iron losses of amorphous alloy machines, the influence law of iron losses under different topologies and processes is revealed. Thirdly,the heat-conducting property and its influencing factors of amorphous alloy iron core is investigated. Furthermore, the conjugate heat transfer model of high-speed high-frequency amorphous alloy permanent magnet machine is established based on fluid-solid coupling method. On this basis, an effective cooling system is proposed. Finally, to realize the purpose of high effic

英文关键词： amorphous alloy；igh-speed high-frequency permanent magnet machine；manufacturing process of amorphous core；loss；heat dissipation