| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a system for evaluating the quality of electric power which infers the causes for generation of higher harmonics based on electric physical quantities, such as current and voltage of consumers receiving power supply. <P>SOLUTION: This system for evaluating quality of electric power 1A is equipped with harmonic component calculation means 8 for calculating the harmonic components of the measured electrical physical quantity 6 per each measuring place, based on the electric physical quantity 6 that includes at least either one of current and voltage measured on at least one or more places of electric power system, and harmonic components agreement calculation means 10, which cross-checks the harmonic component calculated by the harmonic components calculation means 8, with the data of harmonic component generator DB15 which resulted from association of the harmonic component generator itself with harmonic component of this generator, to calculate the agreement level between the harmonic components calculated by the harmonic component calculation means 8 and the harmonic components of the harmonic component generator DB15 data. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
