Harmonic Monitoring System Software Design Based on Virtual Instrument Technology

It is necessary to monitor and analyze the power quality in order to solve the harmonics problems in the power systems,so the status of power quality should be accurately evaluated.In recent years,computer technology,communications technology and testing techniques to promote the continuous development of the virtual instrument technology development.As the virtual instrument software features rich, simple hardware structure,a high degree of intelligence,and other features.Therefore,based on the Virtual Instrument Technology Power Quality Monitoring System,this paper Programming the module of FFT harmonic detection,the example of the FFT and verify the effectiveness of detection modules and correct.