Title:
直流遮断装置
Document Type and Number:
Japanese Patent JP6430294
Kind Code:
B2
Abstract:
A DC breaker 1 includes a mechanical disconnection switch 2 provided at a power transmission line 100, a mechanical circuit breaker 20 connected in series to the mechanical disconnection switch 2, and a parallel circuit 3 connected in parallel with the mechanical disconnection switch 2 and the mechanical circuit breaker 20. The parallel circuit 3 includes a semiconductor circuit breaker 4 that changes a supply or a breaking of the current from the power transmission line 100 to the parallel circuit 3, and a reactor 55 connected in series to the semiconductor circuit breaker 4. An H-bridge circuit 5 which connects one point between the mechanical disconnection switch 2 and the mechanical circuit breaker 20 to one point between the semiconductor circuit breaker 4 and the reactor 55 is provided. The H-bridge circuit 5 includes an H-bridge unit 50 including a plurality of switching elements 51 and a capacitor 53. The H-bridge circuit 5 controls the current flowing through the mechanical circuit breaker 20 by an output voltage control.
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Inventors:
Yosuke Nakazawa
Ryuta Hasegawa
Naotaka Iio
Ryuta Hasegawa
Naotaka Iio
Application Number:
JP2015043243A
Publication Date:
November 28, 2018
Filing Date:
March 05, 2015
Export Citation:
Assignee:
Toshiba Corporation
Toshiba Energy Systems Co., Ltd.
Toshiba Energy Systems Co., Ltd.
International Classes:
H01H33/59; H01H9/54
Domestic Patent References:
| JP10126961A | ||||
| JP55126923A | ||||
| JP54132776A | ||||
| JP62007738U | ||||
| JP2014175077A | ||||
| JP2014235834A |
Foreign References:
| WO2014094847A1 |
Attorney, Agent or Firm:
Kiuchi Mitsuharu