Title:
A protective method of a direct-current power generation system and a direct-current power generation system
Document Type and Number:
Japanese Patent JP6132919
Kind Code:
B2
Abstract:
A DC power generation system in which an arc detector, comprising an arc noise analysis unit which detects an arc which occurs in a DC power generation system based on noise of signal of a voltage-current sensor, a voltage-current variation analysis unit for specifying an arc occurrence point in a case where an arc is detected in the arc noise analysis unit, a voltage-current operation point of output of each string is analyzed based on a signal from a voltage-current sensor and based on variation of voltage-current operation point before and after when an arc is detected and a switch control unit for controlling of opening or closing of a switch based on an arc specified result in a voltage-current variation analysis unit, is provided.
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Inventors:
Makoto Kanamaru
Ken Doi
Tomotaka Yano
Ken Doi
Tomotaka Yano
Application Number:
JP2015534010A
Publication Date:
May 24, 2017
Filing Date:
January 17, 2014
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
H02H7/26; G01R31/08; H02S50/00
Domestic Patent References:
| JP2013132157A | ||||
| JP2011007765A | ||||
| JP2013502054A | ||||
| JP2015524240A |
Attorney, Agent or Firm:
Masuo Oiwa
Takenaka Ikuo
Keigo Murakami
Kenji Yoshizawa
Takenaka Ikuo
Keigo Murakami
Kenji Yoshizawa