摘要
在测量电机转子侧感应电压时,使用示波器自带的快速傅里叶变换功能,可简化计算过程,便于进行谐波分析。但在实验过程中,理论值与实际测量值往往会有一定的误差,因此提出了一种计算示波器测量数值与理论模型数值误差的方法。通过建立仿真模型并计算得出理论值,再将有限元计算结果通过MATLAB软件进行快速傅里叶变换处理后,与示波器运算结果进行对比,得出平均误差。
When measuring the induced voltage on the rotor side of the motor,the fast Fourier transform function of the oscilloscope is used to simplify the calculation process and facilitate harmonic analysis.In the process of experiment,there is often a certain error between the theoretical value and the actual measured value.A method to calculate the error between the measured value of oscilloscope and the theoretical model is proposed in this paper.The theoretical value is obtained by establishing the simulation model and running,and then the finite element calculation results are transformed by fast Fourier transform through MATLAB software.The average error is obtained by comparing the results with the operation results of oscilloscope.
作者
周冰瑜
骆皓
翟长春
吴刚
许祥威
黄靖宇
姜军华
ZHOU Bingyu;LUO Hao;ZHAI Changchun;WU Gang;XU Xiangwei;HUANG Jingyu;JIANG Junhua(School of Electric Power Engineering,Nanjing Institute of Technology,Nanjing 210013,China)
出处
《电工技术》
2022年第11期16-20,24,共6页
Electric Engineering
基金
2021年江苏省大学生实践创新训练计划项目(编号202111276007Z)。
