JPWO2021240639A1 - - Google Patents

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Publication number
JPWO2021240639A1
JPWO2021240639A1 JP2022527312A JP2022527312A JPWO2021240639A1 JP WO2021240639 A1 JPWO2021240639 A1 JP WO2021240639A1 JP 2022527312 A JP2022527312 A JP 2022527312A JP 2022527312 A JP2022527312 A JP 2022527312A JP WO2021240639 A1 JPWO2021240639 A1 JP WO2021240639A1
Authority
JP
Japan
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2022527312A
Other versions
JP7260242B2 (ja
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication of JPWO2021240639A1 publication Critical patent/JPWO2021240639A1/ja
Application granted granted Critical
Publication of JP7260242B2 publication Critical patent/JP7260242B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
    • G01R19/2513—Arrangements for monitoring electric power systems, e.g. power lines or loads; Logging
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • G01R23/02—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage
    • G01R23/06—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage by converting frequency into an amplitude of current or voltage
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • G01R23/02—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • G01R23/02—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage
    • G01R23/12—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage by converting frequency into phase shift
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/22—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral
    • H03K5/26—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral the characteristic being duration, interval, position, frequency, or sequence

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Nonlinear Science (AREA)
  • Inverter Devices (AREA)
JP2022527312A 2020-05-26 2020-05-26 系統周波数検出器 Active JP7260242B2 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2020/020722 WO2021240639A1 (ja) 2020-05-26 2020-05-26 系統周波数検出器

Publications (2)

Publication Number Publication Date
JPWO2021240639A1 true JPWO2021240639A1 (ja) 2021-12-02
JP7260242B2 JP7260242B2 (ja) 2023-04-18

Family

ID=78723228

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2022527312A Active JP7260242B2 (ja) 2020-05-26 2020-05-26 系統周波数検出器

Country Status (4)

Country Link
US (1) US11982696B2 (ja)
EP (1) EP4160228A4 (ja)
JP (1) JP7260242B2 (ja)
WO (1) WO2021240639A1 (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6909548B1 (ja) * 2020-01-30 2021-07-28 東芝三菱電機産業システム株式会社 系統周波数検出器

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06284560A (ja) * 1993-03-24 1994-10-07 Ngk Insulators Ltd 系統異常の検出方法
JPH075212A (ja) * 1993-06-15 1995-01-10 Hitachi Ltd 周波数検出装置
JP2004064515A (ja) * 2002-07-30 2004-02-26 Sanyo Denki Co Ltd 周期性信号制御装置及び周波数検出装置
JP2009017681A (ja) * 2007-07-04 2009-01-22 Mitsubishi Electric Corp 周波数変化率保護継電装置
JP2012163543A (ja) * 2010-09-30 2012-08-30 Daihen Corp 周波数検出装置
US20130116946A1 (en) * 2011-11-08 2013-05-09 Eaton Corporation Methods and apparatus for determining power distribution system topology using disturbance detection
JP2013092473A (ja) * 2011-10-26 2013-05-16 Mitsubishi Electric Corp 交流電気量測定装置および交流電気量測定方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8704571B2 (en) 2011-11-14 2014-04-22 Rockwell Automation Technologies, Inc. Phase-locked-loop with quadrature tracking filter for synchronizing an electric grid
WO2013190518A2 (en) 2012-06-22 2013-12-27 Landauer, Inc. Method and apparatus for fast determination of unknown radiation dose
EP3079217A1 (en) * 2015-04-09 2016-10-12 ABB Technology AG Method for detecting islanding in grid connected power generation systems and related dc/ac converter apparatus
US10270327B1 (en) * 2017-10-13 2019-04-23 Deere & Company Voltage sensor-less position detection in an active front end
JP6909548B1 (ja) * 2020-01-30 2021-07-28 東芝三菱電機産業システム株式会社 系統周波数検出器

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06284560A (ja) * 1993-03-24 1994-10-07 Ngk Insulators Ltd 系統異常の検出方法
JPH075212A (ja) * 1993-06-15 1995-01-10 Hitachi Ltd 周波数検出装置
JP2004064515A (ja) * 2002-07-30 2004-02-26 Sanyo Denki Co Ltd 周期性信号制御装置及び周波数検出装置
JP2009017681A (ja) * 2007-07-04 2009-01-22 Mitsubishi Electric Corp 周波数変化率保護継電装置
JP2012163543A (ja) * 2010-09-30 2012-08-30 Daihen Corp 周波数検出装置
JP2013092473A (ja) * 2011-10-26 2013-05-16 Mitsubishi Electric Corp 交流電気量測定装置および交流電気量測定方法
US20130116946A1 (en) * 2011-11-08 2013-05-09 Eaton Corporation Methods and apparatus for determining power distribution system topology using disturbance detection

Also Published As

Publication number Publication date
US20220413024A1 (en) 2022-12-29
JP7260242B2 (ja) 2023-04-18
EP4160228A1 (en) 2023-04-05
EP4160228A4 (en) 2024-02-14
WO2021240639A1 (ja) 2021-12-02
US11982696B2 (en) 2024-05-14

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