| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To accurately estimate an output from a generator linked in a section by using information obtained from apparatuses (section switches or the like for measuring the amount of electricity such as a voltage, a current, a power factor or the like) being installed to transmission-distribution lines and measuring the amount of electricity. <P>SOLUTION: The apparatuses measuring the amount of electricity containing the elements such as voltage, current and power factor are arranged in the target sections of the transmission-distribution lines, section inverted/normal phase currents during the stop of the generator are calculated and primary regression formula in a complex number showing the characteristics of a section load is prepared from the relationship between the phase currents. The section normal-phase current during the stop is estimated on the basis of the measured value of the section inverted-phase current during the operation of the generator and the primary regression formula, and the output (the current or an effective power) from the generator is estimated from the section normal-phase current during the operation of the generator and the difference. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
