| 摘要 |
The present invention relates to an algorithm for measuring electric power elements including single or three phase voltage, current, and power. According to the present invention, the algorithm for measuring electronic power elements: calculates an effective value element, which cannot be accurately measured by a discrete fourier transform (DFT) method, by using a true root mean square (RMS); and replaces an effective value element, calculated in the DFT method, with the calculated effective value element, thereby more accurately calculating phasors of the current, the voltage and the power under the occurrence of an abnormal voltage including a harmonic wave. |
