电机转矩转速性能测试系统设计  

Design of motor torque and speed performance test systems

作　　者：姚碧辉 竺春祥 邓立唯 王斌锐 YAO Bihui;ZHU Chunxiang;DENG Liwei;WANG Binrui(College of Mechanical and Electrical Engineering,China Jiliang University,Hangzhou 310018,China)

机构地区：[1]中国计量大学机电工程学院,浙江杭州310018

出　　处：《中国计量大学学报》2021年第3期332-340,346,共10页Journal of China University of Metrology

基　　金：浙江省重点研发计划项目(No.2021C01069)。

摘　　要：目的:在电机-测功机平台中,设计一种转矩转速性能测试系统,在加载多种模拟信号的同时高精度地采集测试转矩转速信号。方法:以FPGA和STM32作为双核心处理器,在STM32中使用操作系统实现数据交互,将用户指令发送给FPGA的同时,接收FPGA数据给上位机。在FPGA中用测周法实现数字信号测频,并使用直接数字合成方法实现模拟信号输出。最后设计一个上位机进行简单的人机交互和数据显示储存。结果:经过功能和误差测试,该系统输出误差低于1%,测频误差低于0.1%,满足设计要求。结论:双核心处理器系统及测周法、直接数字合成法能模拟多种电机测试环境并进行高精度测试。Aims:This paper aims to design a torque and speed performance test system to collect signals precisely while loading a variety of analog signals in the motor-dynamometer platform.Methods:FPGA and STM32 were used as dual-core processors.The operating system of STM32 performed data interaction which sent user instructions to FPGA and received FPGA data for the host computer.In FPGA,the cycle-measuring method was used to realize the digital signal frequency measurement;and the direct digital synthesis method was used to realize the analog signal output.Finally,a host computer was designed for simple human-computer interaction and data display and storage.Results:The functional and error test showed that the output error was less than 1%;and the frequency measurement error was less than 0.1%.The system met the design requirements.Conclusions:The dual-core processor system,the cycle-measuring method and the direct digital synthesis method can simulate a variety of motor test environments and perform high-precision testing.

关 键 词：电机测试 直接数字合成 测周法 测频 FPGA处理器 

分 类 号：TU242.2[建筑科学—建筑设计及理论]