|
| 摘要: |
| 提出一种基于全功能可视化数字信号处理器(DSP)设计工具LabVIEW DSP模块的手持式电力谐波分析仪开发方案,以32位浮点DSP芯片为核心,通过传感器、A/D转换器等较少硬件,完成电压、电流实时采集,而准同步采样、数字滤波、加窗、快速傅里叶变换(FFT)运算、电参量计算等工作由DSP芯片里的软件完成。方案充分利用了LabVIEW DSP模块的交互性、易用性、集成资源以及DSP芯片数据处理能力,达到了缩短开发周期、降低开发难度等目的。研究开发的谐波分析仪具有功能多、体积小、性能高、功能扩展方便等特点。 |
| 关键词: 谐波分析,LabVIEW DSP模块,DSP,准同步采样,FFT |
| DOI： |
| 分类号:TM935 |
| 基金项目: |
|
| Design of hand-held power harmonic analyzer based on LabVIEW DSP module |
|
XIE Bo WEI Zhi-nong CHEN Bin
|
| Abstract: |
| A new design scheme of hand-held power harmonic analyzer based on LabVIEW DSP(Digital Signal Processor) module is presented.It takes a 32-bit floating-point DSP as the core and completes real-time acquisition of currents and voltages with less hardware such as sensors and the A / D converter.While the quasi-synchronous sampling,digital filtering,adding windows,FFT(Fast Fourier Transform) operation,electric parameter calculation and so on,are implemented by software in DSP.It makes full use of LabVIEW DSP module in interaction,usability,integrated resource and data processing ability,thus making the development easier and faster.The designed analyzer is of multi-function,small cubage,high-performance and easy expansion. |
| Key words: harmonic analysis,LabVIEW DSP module,DSP,quasi-synchronous sampling,FFT |
