A NOVEL MICROPROCESSOR METER OF REACTIVE POWER

Abstract: This paper explains a new interactive power meter achieved by TMS 320 a digital signal processing (DSP) technique that defines equation conditions. Q_x = √ { V_rms^2 ∑_(n=1)^∞〖( Qn Vn)^2 }〗 for the importance n harmonics. The definition of reactive current is useful because by reduces its value, while the maximum PF (power factor) can be obtained for non-genetic systems. To achieve the simultaneous current and voltage spectra, we used for the 2 sets of actual data, a discrete Fourier transform (DFT), the current and voltage spectra are taken simultaneously and then processed both spectra of the imaginary and real parts to obtain the term of the equation above. Using a single-chip microcomputer (TMS320) to investigate some of the results of the simulated measurements.

摘要：本文阐述了一种通过TMS320数字信号处理（DSP）技术实现的新型交互式功率计，该技术通过定义方程条件来界定。对于n次谐波的重要性，采用以下方程定义：Q_x = √{V_rms^2 ∑_(n=1)^∞〖(Qn Vn)^2}〗。此反应电流的定义颇具价值，因为它可以降低其数值，从而为非遗传系统实现最大功率因数（PF）。为了同时获取电流和电压频谱，我们针对两组实际数据应用了离散傅里叶变换（DFT），同时采集电流和电压频谱，随后对虚部和实部的频谱进行处理，以获得上述方程的项。利用单片微计算机（TMS320）对模拟测量的某些结果进行了研究。