| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a distributed power supply control device which can properly control the reactive power of a distributed power supply in order to effectively utilize the generated electric power of the distributed power supply and stabilize the voltage of an electric power system, and a centralized voltage control system. <P>SOLUTION: A distributed power supply control device according to the present invention comprises: a generated electric power statistical processing unit 102 which calculates a maximum increment width and a maximum decrement width on the basis of the maximum and minimum generated electric power of a photovoltaic power generator 3 until before a prescribed time and its previously generated electric power, and statistically calculates an average value and a standard deviation of maximum change widths on the basis of the maximum increment width and maximum decrement width for a prescribed past period; a maximum generated electric power forecast unit 103 which forecasts the maximum generated electric power of the photovoltaic power generator 3 until after a prescribed time on the basis of the current generated electric power and the average value and standard deviation; and a reactive power controllable amount forecast unit 104 which forecasts a maximum controllable amount of reactive power until after a prescribed time on the basis of the maximum generated electric power and the capacity of an inverter 302. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
