Decreasing data leaking method for power quality monitoring

Power quality monitors in being adopt the series-processing technique based on sampling analyzing-sampling, skips over a lot of data between two-samplings. The paper puts forward method based on period field, process the data not only a major parameters of state standard, but also short-time and long-time issues, so it can realize real-time monitoring and quantificational analysis. Uses synchronized sampling data and error item to express non-synchronized sampling serial, then advances a iterative formula. Non-synchronized data is close to synchronized data by iterative operation. From the point of view of data of period signal, the method decreases and disappears even data leaking. In addition, the method decrease the amount of sampling points in one period, and sampling data of several sampling interval.