摘要
采用基于快速傅里叶变换(fast fourier transform,FFT)的加窗插值算法进行谐波分析。针对目前谐波检测系统存在的运算量大、计算时间长、实时性差等技术瓶颈。提出了使用集成现场可编程逻辑阵列(field-programmable gate array,FPGA)的高速数据处理能力和ARM(advanced RISC machines)高效数字信息管理能力的ZYNQ作为主控芯片的方案。使用FPGA技术实现基于FFT的加窗插值算法,在Vivado平台中建立谐波检测系统,利用Xilinx公司推出的搭载ZYNQ芯片的Zed Board开发板计算出50次以内各次谐波的频率、幅值和相位。将分析结果与Matlab仿真对比,验证了使用该系统进行谐波分析具有较高的精确度。
Window interpolation algorithm based on Fast Fourier transform（FFT） was adopted to analyze the harmonics. The current harmonic detection system has many bottlenecks, such as large amount of operation, long calculation time and poor real-time performance. Then, a scheme that takes ZYNQ which integrates Field-Programmable Gate Array＇s（FPGA） high speed data processing capability and ARM efficient digital information management capability as the main control chip was proposed. The FPGA technology was used to realize the window interpolation FFT algorithm. The harmonic analysis system was also established in the Vivado platform.The frequency, amplitude and phase of 50 harmonics were calculated by the Zed Board development board equipped with ZYNQ chip, and the results are compared with that of Matlab simulation. The research results show that harmonic analysis by using this system has high accuracy.
作者
夏国标
陈剑云
夏孟显
Xia Guobiao;Chen Jianyun;Xia Mengxian(School of Electrical and Automation Engineering,East China Jiaotong University,Nanchang 330013,China)
出处
《华东交通大学学报》
2018年第4期89-96,共8页
Journal of East China Jiaotong University
基金
国家自然科学地区基金项目(51467004)
