永磁同步电动机的测试及动态加载研究

发布时间：2018-03-28 20:54

本文选题：永磁同步电动机　切入点：虚拟仪器　出处：《哈尔滨理工大学》2015年硕士论文

【摘要】：近年来,永磁同步电动机发展迅速,应用领域不断扩展。在研发、使用过程中,不可避免的需要测量有关参数和性能指标。在性能指标上,永磁同步电动机与电励磁同步电动机大部分相同,但由于永磁体磁场的存在,某些性能和参数的测试与电励磁同步电机有较大差异,测试办法和数据处理等方面还不够完善。本文在传统电机测试原理基础上结合虚拟仪器技术,对基于LabVIEW的永磁同步电动机测试系统进行研究和设计。首先,基于LabVIEW对永磁同步电动机测试系统进行研究设计,其中包括新型对拖测试平台设计和软件功能及界面设计。该测试系统能实现测试数据的实时显示、存储以及处理等。其次,对永磁同步电动机的动态加载方式进行研究,设计新型永磁同步电动机对拖测试平台,对电压降低问题进行定性分析并提出解决方案,针对方案做MATLAB/SIMULINK仿真,与现场实测数据对比,验证测试平台的可行性和电容补偿的正确性。再其次,研究永磁同步电动机机铁耗分离测定方法。根据实测的250kW永磁同步电动机的空载试验数据,基于LabVIEW绘制空载特性曲线,并实现机铁耗的分离计算。最后,研究分析最小转矩的产生机理并判定产生位置,对转矩转速曲线进行合理的曲线拟合处理,计算出最小转矩点,为工业测试现场缩短工期、减少成本。
[Abstract]:In recent years, permanent magnet synchronous motor (PMSM) is developing rapidly and its application field is expanding. In the process of development and application, it is inevitable to measure the relevant parameters and performance indexes. The permanent magnet synchronous motor (PMSM) is mostly the same as the electrically excited synchronous motor (ESM). However, due to the existence of permanent magnet magnetic field, some properties and parameters of the PMSM are different from those of the EMSM. The test method and data processing are not perfect. This paper studies and designs the permanent magnet synchronous motor test system based on LabVIEW on the basis of traditional motor testing principle and virtual instrument technology. The test system of permanent magnet synchronous motor (PMSM) is researched and designed based on LabVIEW, which includes the design of a new test platform and the design of software function and interface. The test system can display, store and process the test data in real time. The dynamic loading mode of permanent magnet synchronous motor (PMSM) is studied. A new PMSM towing test platform is designed. The voltage reduction problem is qualitatively analyzed and the solution is put forward. The MATLAB/SIMULINK simulation is done for the PMSM. Compared with the field measured data, the feasibility of the test platform and the correctness of capacitor compensation are verified. Secondly, the method of separating iron loss of permanent magnet synchronous motor (PMSM) machine is studied. According to the measured data of 250kW PMSM no-load test, Drawing the no-load characteristic curve based on LabVIEW, and realizing the separation calculation of machine iron consumption. Finally, the mechanism of minimum torque is analyzed and the position is determined, the curve of torque and speed is fitted reasonably, and the minimum torque point is calculated. Shorten time limit and reduce cost for industrial test site.
【学位授予单位】：哈尔滨理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TM341

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