摘要
确定电力谐波测试仪的硬件系统和软件系统的设计方案,其中硬件系统包括STM32芯片、电流互感器、A/D电路、显示屏等器件;软件系统中,采用FFT和相位差校正法,对电力谐波参数进行测量并校正;将信号发生器产生的信号谐波测试结果和Matlab仿真结果对比。对比结果表明,此设计测量频率和幅值的准确度较高。
The author of this paper has designed the hardware and software systems of the power harmonic tester.The hardware system consists of a STM32 chip,current transformers,A/D cir-cuits and displays.In the software,FFT and phase difference correction method are used to measure and adjust the power harmonic parameters.Then,The test results of the signal harmon-ics generated by signal generator and Matlab simulation results are compared,which shows that this design can provide a high accuracy value of the frequency and amplitude of power harmonic.
出处
《唐山学院学报》
2014年第6期67-68,84,共3页
Journal of Tangshan University
关键词
电力谐波
STM32
电流互感器
相位差校正
power harmonics
STM32
current transformer
phase difference correction
