| 摘要 |
A frequency control device for a plurality of DC interconnection systems (1a, 1b, 1c) for interconnecting two power systems (2α, 2β) and controlling frequency comprises: a frequency deviation detection unit (5a) for detecting the frequency deviation between said two power systems (2α, 2β); a specific frequency deviation extraction unit (6a) for extracting a specific frequency deviation satisfying a predetermined condition from said frequency deviation detected by said frequency deviation detection unit (5a); and a control switching unit (9a) for switching from a frequency control that interchanges the powers between said two power systems (2α, 2β) so as to minimize said specific frequency deviation extracted by said specific frequency deviation extraction unit (6a) to another frequency control that interchanges the powers between said two power systems (2α, 2β) so as to minimize said frequency deviation detected by said frequency deviation detection means. |
