Digital electric energy meter individually measuring electric energy of fundamental wave and harmonic wave based on LabVIEW DSP module
In this paper, the diffirence between traditional electrical energy metering system and digital electrical energy metering system is presented, the thought and the design method of virtual instrument(Ⅵ) technology is introduced, a new development scheme of digital electric energy meter based on LabVIEW DSP(Digital Signal Processor) module is presented.It takes a floating-point DSP as the core and completes real-time acquisition of currents and voltages with less hard ware such as photoelectricity 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.The program developed in LabVIEW using LabVIEW DSP module can be downloaded to the DSP hard equipment,with no additional DSP compiler,easy to be operated.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 developed digital electric energy meter has the performanc of multi-function,small cubage,high-performanc and easy expansion,etc.
LabVIEW DSP module digital electric energy meter photoelectricity transformer Ethernet
Jing Li Yihan Yang Wenbin Yu Guoqing Zhang
North China Electric Power University,Changping,Beijing,102206,China
国际会议
2008 China International Conference on Electricity Distribution (CICED 2008)(2008中国国际供电会议)
广州
英文
1-5
2008-12-10（万方平台首次上网日期，不代表论文的发表时间）