| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To obtain an estimation device for decentralized power source output capable of estimating decentralized power source output at low cost. <P>SOLUTION: The estimation device 50 for decentralized power source output is applied to a distribution system in which loads and decentralized power sources are connected to low-voltage distribution lines 40 to 42 and estimates a decentralized power source output. The decentralized power sources and the loads are connected so that the following capacity ratios are different from each other: the load capacity ratio of the capacity of a first load connected between A and B phases (first interphase) and the capacity of a second load connected between B and C phases (second interphase); and the decentralized power source capacity ratio of the capacity of a first decentralized power source connected between A and B phases and the capacity of a second decentralized power source connected between B and C phases. Decentralized power source output is thereby computed based on an effective power Pab(t) measured on the high-voltage distribution line side between A and B phases, an effective power Pbc(t) measured on the high-voltage distribution line side between B and C phases, a load capacity ratio, and a decentralized power source capacity ratio. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
