GB2377565A - Generator protection apparatus - Google Patents

Generator protection apparatus Download PDF

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Publication number
GB2377565A
GB2377565A GB0224898A GB0224898A GB2377565A GB 2377565 A GB2377565 A GB 2377565A GB 0224898 A GB0224898 A GB 0224898A GB 0224898 A GB0224898 A GB 0224898A GB 2377565 A GB2377565 A GB 2377565A
Authority
GB
United Kingdom
Prior art keywords
protection
generator
signal
protection apparatus
location
Prior art date
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
GB0224898A
Other versions
GB0224898D0 (en
GB2377565B (en
Inventor
Christopher Graham Bright
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.)
Power Generation Co Ltd
Original Assignee
Power Generation Co Ltd
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.)
Filing date
Publication date
Priority claimed from GB0009878A external-priority patent/GB0009878D0/en
Application filed by Power Generation Co Ltd filed Critical Power Generation Co Ltd
Publication of GB0224898D0 publication Critical patent/GB0224898D0/en
Publication of GB2377565A publication Critical patent/GB2377565A/en
Application granted granted Critical
Publication of GB2377565B publication Critical patent/GB2377565B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • 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
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/388—Islanding, i.e. disconnection of local power supply from the network
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P80/00—Climate change mitigation technologies for sector-wide applications
    • Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
    • Y02P80/14—District level solutions, i.e. local energy networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Eletrric Generators (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

An embedded generator protection apparatus and method to more accurately detect "islanding" or "loss of mains" in which measurements of operational parameters of the local electricity supply, in particular rate of change of frequency or vector shift, are made at two separate locations on the grid, and the measurements compared to determine whether or not a measured fault in the vicinity of the generator is a local or a system wide disturbance, thereby avoiding inadvertent or unnecessary operation of the generator protection. A signal sending relay (34) at a first location, such as a major substation (30), monitors the local rate of change of frequency of the supply and issues a signal to protection apparatus (44) and (54), at a second location, in the vicinity of an embedded generator (42) and (52), in dependence on supply characteristics at the first location. The receipt of the signal by the protection apparatus may simply indicate that the protection is not to operate, or alternatively the signal may be used to determine whether to operate protection or not.

Description

The receipt of the signal by the protection apparatus may simply indicate
that the protection is not to operate, or alternatively the signal may be used to determine whether to operate protection or not.
GB0224898A 2000-04-20 2001-04-20 Generator protection apparatus Expired - Fee Related GB2377565B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB0009878A GB0009878D0 (en) 2000-04-20 2000-04-20 Improved generator protection apparatus
GB0108884A GB0108884D0 (en) 2000-04-20 2001-04-09 Improved generator protection apparatus
PCT/GB2001/001799 WO2001082444A1 (en) 2000-04-20 2001-04-20 Generator protection apparatus

Publications (3)

Publication Number Publication Date
GB0224898D0 GB0224898D0 (en) 2002-12-04
GB2377565A true GB2377565A (en) 2003-01-15
GB2377565B GB2377565B (en) 2004-03-03

Family

ID=26244150

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0224898A Expired - Fee Related GB2377565B (en) 2000-04-20 2001-04-20 Generator protection apparatus

Country Status (3)

Country Link
AU (1) AU2001248626A1 (en)
GB (1) GB2377565B (en)
WO (1) WO2001082444A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1764894A1 (en) * 2005-09-19 2007-03-21 ABB Schweiz AG Method for detecting islanding operation of a distributed generator
DK1914419T3 (en) 2006-10-19 2015-12-21 Siemens Ag Wind energy installation and method for controlling the output power from a wind power installation
US7684900B2 (en) 2007-02-20 2010-03-23 Abb Research Ltd. Adaptive provision of protection function settings of electrical machines
GB0721167D0 (en) 2007-10-26 2007-12-05 Rolls Royce Plc Electrical generator arrangements
US7944068B2 (en) * 2008-06-30 2011-05-17 General Electric Company Optimizing converter protection for wind turbine generators
WO2010145684A1 (en) * 2009-06-15 2010-12-23 Abb Technology Ag An arrangement for protecting equipment of a power system
WO2013127447A1 (en) * 2012-02-29 2013-09-06 Siemens Aktiengesellschaft Monitoring an electrical power supply network
CN109004644B (en) 2014-07-17 2023-04-11 3M创新有限公司 System and method for coordinating signal injection to understand and maintain orthogonality between signal injection patterns in a utility grid
EP3093943B1 (en) 2015-05-13 2020-08-26 ABB Schweiz AG Method and apparatus for detecting vector shift
CN110556819B (en) * 2018-05-31 2023-07-28 上海航空电器有限公司 ASG frequency protection structure of single-channel multi-electric aircraft
RU2731127C1 (en) * 2019-06-10 2020-08-31 Федеральное государственное бюджетное образовательное учреждение высшего образования "Государственный университет морского и речного флота имени адмирала С.О. Макарова" Method of protecting autonomous power plant network
CN113420654A (en) * 2021-06-22 2021-09-21 国网北京市电力公司 Processing method and device for transformer substation state and computer readable storage medium

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
SHORT PAPER FOR THE IEE COLLOQUIUM ON SYSTEM IMPLICATIONS OF EMBEDDED GENERATION AND ITS PROTECTION AND CONTROL, Online! 1998, pp.1-7 *
THE INSTITUTION OF ELECTRICAL ENGINEERS, Online! 1998, p.18 *
THE INSTITUTION OF ELECTRICAL ENGINEERS, Online! 1998, pp.1-15 *
THE INSTITUTION OF ELECTRICAL ENGINEERS, Online! 1999, pp.1-5 *

Also Published As

Publication number Publication date
AU2001248626A1 (en) 2001-11-07
GB0224898D0 (en) 2002-12-04
WO2001082444A1 (en) 2001-11-01
GB2377565B (en) 2004-03-03

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Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20070420