JP7414132B2 - 給電システム、保護協調方法、及びプログラム - Google Patents

給電システム、保護協調方法、及びプログラム Download PDF

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Publication number
JP7414132B2
JP7414132B2 JP2022523769A JP2022523769A JP7414132B2 JP 7414132 B2 JP7414132 B2 JP 7414132B2 JP 2022523769 A JP2022523769 A JP 2022523769A JP 2022523769 A JP2022523769 A JP 2022523769A JP 7414132 B2 JP7414132 B2 JP 7414132B2
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JP
Japan
Prior art keywords
power supply
ground fault
supply system
branch
current
Prior art date
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JP2022523769A
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English (en)
Japanese (ja)
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JPWO2021234788A1 (https=
Inventor
直樹 花岡
英俊 高田
将樹 香西
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NTT Inc
NTT Inc USA
Original Assignee
Nippon Telegraph and Telephone Corp
NTT Inc USA
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Publication of JPWO2021234788A1 publication Critical patent/JPWO2021234788A1/ja
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
    • H02H3/087—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current for DC applications
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/02—Details
    • H02H3/05—Details with means for increasing reliability, e.g. redundancy arrangements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/16—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to fault current to earth, frame or mass
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
    • H02H3/32—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
    • H02H3/33—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
    • H02H7/268—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured for DC systems
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J1/00—Circuit arrangements for DC mains or DC distribution networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)
  • Direct Current Feeding And Distribution (AREA)
JP2022523769A 2020-05-18 2020-05-18 給電システム、保護協調方法、及びプログラム Active JP7414132B2 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2020/019676 WO2021234788A1 (ja) 2020-05-18 2020-05-18 給電システム、保護協調方法、及びプログラム

Publications (2)

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JPWO2021234788A1 JPWO2021234788A1 (https=) 2021-11-25
JP7414132B2 true JP7414132B2 (ja) 2024-01-16

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JP2022523769A Active JP7414132B2 (ja) 2020-05-18 2020-05-18 給電システム、保護協調方法、及びプログラム

Country Status (3)

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US (1) US12113350B2 (https=)
JP (1) JP7414132B2 (https=)
WO (1) WO2021234788A1 (https=)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021234789A1 (ja) * 2020-05-18 2021-11-25 日本電信電話株式会社 給電システム、地絡検知方法、及びプログラム

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009081912A1 (ja) 2007-12-25 2009-07-02 Panasonic Electric Works Co., Ltd. Ｄｃ配電システム
WO2009081908A1 (ja) 2007-12-25 2009-07-02 Panasonic Electric Works Co., Ltd. 直流配電システム
WO2017221493A1 (ja) 2016-06-21 2017-12-28 三菱電機株式会社 直流電気回路保護装置およびアーク検出方法
WO2021044686A1 (ja) 2019-09-02 2021-03-11 三菱電機株式会社 直流配電システム

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4368500A (en) * 1981-04-27 1983-01-11 Westinghouse Electric Corp. Solid-state load protection system having an improved inverse time delay circuit
US9800044B2 (en) * 2015-05-29 2017-10-24 Abb Schweiz Ag Fault location of DC distribution systems
FR3056033B1 (fr) * 2016-09-14 2018-10-12 Supergrid Institute Protection d'un reseau hvdc
US20200144807A1 (en) * 2018-11-07 2020-05-07 Rolls-Royce North American Technologies Inc. Redundant protection system for a hybrid electrical system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009081912A1 (ja) 2007-12-25 2009-07-02 Panasonic Electric Works Co., Ltd. Ｄｃ配電システム
WO2009081908A1 (ja) 2007-12-25 2009-07-02 Panasonic Electric Works Co., Ltd. 直流配電システム
WO2017221493A1 (ja) 2016-06-21 2017-12-28 三菱電機株式会社 直流電気回路保護装置およびアーク検出方法
WO2021044686A1 (ja) 2019-09-02 2021-03-11 三菱電機株式会社 直流配電システム

Also Published As

Publication number Publication date
JPWO2021234788A1 (https=) 2021-11-25
WO2021234788A1 (ja) 2021-11-25
US20230178975A1 (en) 2023-06-08
US12113350B2 (en) 2024-10-08

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