JP5866390B2 - 電力回路開閉器用制御回路 - Google Patents
電力回路開閉器用制御回路 Download PDFInfo
- Publication number
- JP5866390B2 JP5866390B2 JP2014035196A JP2014035196A JP5866390B2 JP 5866390 B2 JP5866390 B2 JP 5866390B2 JP 2014035196 A JP2014035196 A JP 2014035196A JP 2014035196 A JP2014035196 A JP 2014035196A JP 5866390 B2 JP5866390 B2 JP 5866390B2
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- Prior art keywords
- current
- power system
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Classifications
-
- 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
-
- 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
- H02H3/44—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 the rate of change of electrical quantities
-
- 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
- H02H3/46—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 frequency deviations
Landscapes
- Emergency Protection Circuit Devices (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Breakers (AREA)
Description
10a サンプリング/ホールド回路部
10b 離散フーリエ変換器
10c 微分器
10d 制御部
Claims (2)
- 電力回路開閉器用制御回路において、
電力系統の電流の検出信号を1周期サンプリングして供給するサンプリング/ホールド回路部と、
前記サンプリング/ホールド回路部の出力端に接続され、前記サンプリング/ホールド回路部から供給される電力系統の電流の検出信号の1周期のサンプリング信号を離散フーリエ変換して電力系統の電流の周波数成分の大きさ及び位相を供給する離散フーリエ変換器と、
電力系統の電流の検出信号を微分して時間に対する電力系統の電流の変化率を供給する微分器と、
前記離散フーリエ変換器及び前記微分器に接続され、前記電力系統の電流の変化率及び基準変化率に基づいて、前記離散フーリエ変換器からの電力系統の電流の周波数成分の大きさ又は前記微分器からの変化率に応じてトリップ制御を決定する制御部と
を含み、
前記制御部は、前記電力系統の電流の検出信号による前記電力系統の電流の値が定格電流値を超える場合、前記微分器からの変化率と所定の基準変化率とを比較し、前記変化率が前記基準変化率より小さいと、前記離散フーリエ変換器から供給される電力系統の電流の周波数成分の大きさに基づいてトリップ制御を行うか否かを決定し、
前記制御部は、前記電力系統の電流の検出信号による前記電力系統の電流の値が定格電流値を超える場合、前記微分器からの変化率と所定の基準変化率とを比較し、前記変化率が前記基準変化率以上であると、前記微分器からの変化率に基づいてトリップ制御を行うか否かを決定する、電力回路開閉器用制御回路。 - 前記サンプリング/ホールド回路部、前記微分器及び前記制御部に接続され、前記電力系統の電流の検出信号を供給する変流器をさらに含む、請求項1に記載の電力回路開閉器用制御回路。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020130026933A KR101438041B1 (ko) | 2013-03-13 | 2013-03-13 | 전력회로 개폐기용 제어 회로 |
KR10-2013-0026933 | 2013-03-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2014180196A JP2014180196A (ja) | 2014-09-25 |
JP5866390B2 true JP5866390B2 (ja) | 2016-02-17 |
Family
ID=51504557
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2014035196A Expired - Fee Related JP5866390B2 (ja) | 2013-03-13 | 2014-02-26 | 電力回路開閉器用制御回路 |
Country Status (4)
Country | Link |
---|---|
US (1) | US9048657B2 (ja) |
JP (1) | JP5866390B2 (ja) |
KR (1) | KR101438041B1 (ja) |
CN (1) | CN104052021B (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101438041B1 (ko) * | 2013-03-13 | 2014-09-04 | 엘에스산전 주식회사 | 전력회로 개폐기용 제어 회로 |
WO2015078481A1 (en) * | 2013-11-28 | 2015-06-04 | Volvo Truck Corporation | Traction voltage system in a vehicle and method for controlling such a system |
US9529058B2 (en) * | 2014-04-18 | 2016-12-27 | International Business Machines Corporation | Testing a multi-phase voltage regulator module |
US9667060B1 (en) * | 2014-11-04 | 2017-05-30 | Google Inc. | Adjusting over current protection values during changes in load current |
WO2016080909A1 (en) * | 2014-11-19 | 2016-05-26 | Nanyang Technological University | Electronic circuit for single-event latch-up detection and protection |
FR3041179B1 (fr) * | 2015-09-14 | 2019-05-10 | Schneider Electric Industries Sas | Dispositif et procede de limitation d'un premier pic de courant dans un reseau electrique |
CN110768608A (zh) * | 2019-11-12 | 2020-02-07 | 上海元城汽车技术有限公司 | 过流保护装置和电动汽车 |
CN112445259B (zh) * | 2020-11-17 | 2022-10-11 | 长春捷翼汽车零部件有限公司 | 电源稳压输出调节装置、方法及系统 |
CN113640702B (zh) * | 2021-09-02 | 2023-06-27 | 广东电网有限责任公司 | 一种具有电流回路自检功能的零序保护装置及方法 |
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JPH0652973B2 (ja) * | 1985-04-13 | 1994-07-06 | 株式会社明電舍 | 小容量発電システムの連系装置 |
FR2598266B1 (fr) * | 1986-04-30 | 1994-02-18 | Merlin Et Gerin | Declencheur statique instantane pour un disjoncteur limiteur |
US4868704A (en) * | 1988-11-14 | 1989-09-19 | General Electric Company | Apparatus for providing distance protection and distance measurement for a high voltage transmission line |
US5172329A (en) * | 1990-06-14 | 1992-12-15 | Rahman Azizur M | Microprocessor-based digital protective relay for power transformers |
US5224011A (en) * | 1991-04-19 | 1993-06-29 | Gas Research Institute | Multifunction protective relay system |
US5537327A (en) * | 1993-10-22 | 1996-07-16 | New York State Electric & Gas Corporation | Method and apparatus for detecting high-impedance faults in electrical power systems |
US5822165A (en) * | 1996-09-16 | 1998-10-13 | Eaton Corporation | Sequence based network protector relay with forward overcurrent protection and antipumping feature |
JPH11215689A (ja) * | 1998-01-28 | 1999-08-06 | Canon Inc | 過電流保護装置 |
JP2002186167A (ja) | 2000-12-15 | 2002-06-28 | Chubu Electric Power Co Inc | サンプリングデータ処理方法及び該処理方法を用いた継電器 |
US6407581B1 (en) * | 2001-03-27 | 2002-06-18 | Microchip Technology Incorporated | High voltage multipurpose input/output circuit |
JP2002345145A (ja) | 2001-05-18 | 2002-11-29 | Mitsubishi Electric Corp | 回路遮断器 |
CA2511004C (en) * | 2002-12-23 | 2015-07-21 | Power Measurement Ltd. | Power monitoring integrated circuit with communication interface |
US7069116B2 (en) * | 2004-02-02 | 2006-06-27 | Abb Inc. | High impedance fault detection |
JP2007014052A (ja) | 2005-06-28 | 2007-01-18 | Mitsubishi Electric Corp | デジタル保護継電装置 |
US8879218B2 (en) * | 2007-12-14 | 2014-11-04 | True-Safe Technologies, Inc. | Arc fault circuit interrupter, systems, apparatus and methods of detecting and interrupting electrical faults |
US8072716B2 (en) * | 2008-10-24 | 2011-12-06 | Hetko, Inc. | AFCI device |
KR101074548B1 (ko) | 2008-12-31 | 2011-10-17 | 엘에스산전 주식회사 | 모터 보호 계전기 |
KR101212214B1 (ko) * | 2011-06-24 | 2012-12-13 | 엘에스산전 주식회사 | 디지털 보호 계전기 및 디지털 보호 계전기의 동작 방법 |
US20140198420A1 (en) * | 2013-01-11 | 2014-07-17 | Cooper Technologies Company | Fault-Likely Detector |
KR101438041B1 (ko) * | 2013-03-13 | 2014-09-04 | 엘에스산전 주식회사 | 전력회로 개폐기용 제어 회로 |
US8744637B1 (en) * | 2013-09-12 | 2014-06-03 | Deepak Maragal | Methods and apparatus for detecting the clearance of fault in shunt reactor compensated transmission lines |
-
2013
- 2013-03-13 KR KR1020130026933A patent/KR101438041B1/ko active IP Right Grant
-
2014
- 2014-02-03 US US14/171,609 patent/US9048657B2/en active Active
- 2014-02-26 JP JP2014035196A patent/JP5866390B2/ja not_active Expired - Fee Related
- 2014-03-11 CN CN201410088423.3A patent/CN104052021B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
US20140268461A1 (en) | 2014-09-18 |
KR101438041B1 (ko) | 2014-09-04 |
CN104052021A (zh) | 2014-09-17 |
JP2014180196A (ja) | 2014-09-25 |
US9048657B2 (en) | 2015-06-02 |
CN104052021B (zh) | 2017-10-13 |
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