| 基于有限公式法的永磁电机温升仿真实验教学平台与应用 |
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| 引用本文： | 朱高嘉,李龙女.基于有限公式法的永磁电机温升仿真实验教学平台与应用[J].实验技术与管理,2021(2):136-139. |
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| 作者姓名： | 朱高嘉 李龙女 |
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| 作者单位： | 天津工业大学电工电能新技术天津市重点实验室 |
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| 基金项目： | 天津工业大学科研项目(52014720);天津市教委科研计划项目(2018KJ209)。 |
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| 摘 要： | 为了保证电机长期运行可靠性和输出转矩能力,永磁电机温度场的精确计算是其设计与开发的基础,而常规数值离散过程需要进行复杂的数学变换,掌握其核心机理所需的前置课程多、学习难度大。有限公式法离散方程物理意义清晰明确,将之应用于教学可提高学生对数值算法的基本思想及分析方法的理解。通过对基于有限公式法的实际工程案例分析讲解,可培养学生应用数值算法解决复杂工程案例的能力。该文分析和推导了基于有限公式法的永磁电机温度场数学模型,分析其物理意义;搭建了基于有限公式法的永磁电机三维温度场数值计算平台,为永磁电机设计类课程中温升分析与冷却设计提供了有效的教学条件。
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| 关 键 词： | 永磁电机 有限公式法 教学平台 温升 |
Teaching platform establishment and its application in temperature rise simulation of permanent magnet motors based on cell method |
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| Institution: | (Tianjin Key Laboratory of Advanced Technology of Electrical Engineering and Energy,Tianjin Polytechnic University,Tianjin 300387,China) |
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| Abstract: | To guarantee the working reliability and maximize the output power, the accurate prediction of the permanent magnet(PM) motor temperature fields is the base for the motor design and development processes. However, complicatedly mathematical transformations are needed while using the discrete techniques based on traditional numerical methods, with numerous prior knowledge difficult to learn. Since the discrete processes based on cell method(CM) are of definite physical meanings, the CM could be a good alternative method in teaching students to master basic knowledge of the numerical algorithms. Through the analysis and the explanation of engineering cases based on the CM, the students’ ability of solving complex engineering cases with numerical algorithms is cultivated. The thermal mathematical model based on the CM is derived, and the detailed physical meanings are analyzed. The three-dimensional(3D) simulation platform for the calculations of the PM motor temperature fields based on the CM is established to provide effective teaching conditions for the thermal analyses and cooling system design of PM machine design related courses. |
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| Keywords: | permanent magnet machine cell method teaching platform temperature rise |
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