公开(公告)号：US08165835B1

公开(公告)日：2012-04-24

申请号：US12259112

申请日：2008-10-27

申请人： Rahul Singh ,  Dale Brummel ,  Hang Liu ,  Robert Leon Gorsegner ,  Edwin De Angel ,  Jean Charles Pina

发明人： Rahul Singh ,  Dale Brummel ,  Hang Liu ,  Robert Leon Gorsegner ,  Edwin De Angel ,  Jean Charles Pina

IPC分类号： G01R19/00 ,  G06F17/40

CPC分类号： G01R21/1331

摘要： A power measurement and calibration system provides power and line frequency measurements by using a bandpass filter having complex voltage and current outputs from which real and imaginary power components can be determined. Calibration of the filter may be omitted if a complex wavelet filter is used to implement the bandpass filter and a determination of line frequency can also be provided for downstream use. A processor receiving data from the output of the filter can compute real and imaginary power, power factor and the line frequency. The filter may be implemented by a processor executing program instructions, or a digital circuit implementing the filter and optionally a CORDIC rotator for computing the current-to-voltage phase relationship can provide input to the processor for power measurement and calibration of the sample rate to line frequency relationship and for other uses.

摘要翻译： 功率测量和校准系统通过使用具有复数电压和电流输出的带通滤波器来提供功率和线路频率测量，从而可以确定实际和虚拟功率分量。 如果使用复小波滤波器来实现带通滤波器，则也可以省略滤波器的校准，还可以为下游使用提供线路频率的确定。 从滤波器的输出接收数据的处理器可以计算实际功率，虚功率，功率因数和线路频率。 滤波器可以由执行程序指令的处理器或实现滤波器的数字电路和可选地用于计算电流到电压相位关系的CORDIC转子来实现，其可以向处理器提供输入以进行功率测量并将采样率校准到 线频率关系和其他用途。