基于定子磁极局部磁场调制的定子永磁型无轴承磁通切换电机驱动系统的基础研究

项目名称： 基于定子磁极局部磁场调制的定子永磁型无轴承磁通切换电机驱动系统的基础研究

项目编号： No.51477031

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 电工技术

项目作者： 周扬忠

作者单位： 福州大学

项目金额： 80万元

中文摘要： 定子永磁型磁通切换电机将永磁体嵌放到定子上，每个定子磁极的两个齿中永磁激励磁场方向相反，若采用传统的定子磁极整体嵌套转子悬浮力控制绕组方案解决转子悬浮，会出现每个定子磁极的两个齿下气隙磁场一个增大、另一个减小的不利于最大悬浮力产生和严重依赖转子位置信息控制悬浮力等问题。为此，本项目主要研究：1）局部磁场调制定子永磁型无轴承电机定子磁极下的磁场分布规律，局部磁场调制对悬浮力和转矩的影响规律以及定子永磁型无轴承电机的优化设计准则。2）补偿磁路饱和的、消除转矩和悬浮力耦合的两种定子永磁型无轴承电机驱动系统解耦控制策略。3）定子永磁型无轴承电机缺相不平衡运行的补偿与解耦控制方法。4）定子永磁型无轴承电机效率最优理论和控制策略。通过本项目的研究，为定子永磁型无轴承电机驱动系统设计及其控制奠定坚实的理论和技术基础，为高速、高温、无污染、高可靠性等领域中电机驱动提供一种全新的发展思路。

中文关键词： 定子永磁型无轴承电机；定子磁极局部磁场调制的转子悬浮方法；解耦控制；悬浮绕组缺相容错控制；磁路饱和影响

英文摘要： Permanent magnets are inserted into the stator and every stator magnetic pole has two teeth with the opposite permanent magnet exciting direction for a flux-switching machine with permanent magnet in the stator.To achieve rotor being suspended at the radial direction, there are some problems such as lower suspension force and controlling levitation force relying on rotor position seriously because one tooth air gap magnetic field is increased while the other one is decreased for every stator magnetic pole if the classical rotor suspension force windings nested on every stator magnetic pole are applied.Thus, the main research include:1)The magnetic field distributing laws of stator magnetic pole air gap, the influence laws on the decuple operating for suspension force and torque ,and the optimal design rules of the bearingless machine with permanent magnets in the stator with the local magnetic field modulation.2)The decouple control strategy to compensate magnetic saturation for the drive of bearingless machine with permanent magnets inserted into stator.3)The compensating control strategy of some phases open fault tolerance for the drive of bearingless machine with permanent magnets in the stator.4)The efficiency optimal control strategy for the drive system of bearingless machine with permanent magnets inserted into stator.The research can provide some theoretical basis and technical support for the design and control of the drive system of bearingless machine with permanent magnets in the stator,and a new development ideal for machine drive applied in those applications of high speed, high temperature, pollution - free, high reliability, etc.

英文关键词： bearingless flux-switching machine with permanent magnet in the stator;rotor levitation method based on the local magnet field modulation of stator magnetic pole;decouple control;fault-tolerance control without some levitation windings;magnet field satura