【摘要】 提出了电力网络在线谐波测量分析的新系统构架思想。该系统应用全球定位系统GPS(GlobalPositionSystem)同步时钟作为系统同步测量的时间标准,采用虚拟仪器技术,充分利用电力系统的网络资源,实现系统数据资源共享、实时传递、数据综合显示和综合分析。在谐波分析中可灵活地选用高精度快速傅里叶变换法FFT(FastFourierTransform)和递归RFFT(RecursiveFastFourierTransform)法,有效地提高了谐波分析的精度和速度。更多还原

【Abstract】 A systematic concept for the online measuring and analysis of power network harmonic is presented.It applies GPS(Global Positioning System)to synchronize local clock for synchronous measuring,adopts virtual instrument technique and fully utilizes the network resources of power system.It realizes system data sharing,real-time data transfer and synthetic data display and analysis.During harmonic analysis,FFT(Fast Fourier Transform)algorithm with high accuracy of RFFT(Re-cursive Fast Fourier Transform)algorithm can be chosen to improve accuracy and speed effectively.更多还原