TW200605470A - Uninterruptible power supply and power outage backup system - Google Patents

Uninterruptible power supply and power outage backup system

Info

Publication number
TW200605470A
TW200605470A TW094109738A TW94109738A TW200605470A TW 200605470 A TW200605470 A TW 200605470A TW 094109738 A TW094109738 A TW 094109738A TW 94109738 A TW94109738 A TW 94109738A TW 200605470 A TW200605470 A TW 200605470A
Authority
TW
Taiwan
Prior art keywords
power supply
fault
supply
load
control
Prior art date
Application number
TW094109738A
Other languages
Chinese (zh)
Other versions
TWI313953B (en
Inventor
Yoshinori Goko
Koichi Sano
Takeshi Kobayashi
Takahiro Okuno
Yutaka Maruyama
Kiyotaka Terada
Hirotsugu Hatanaka
Koichi Mizuno
Norikazu Kanao
Original Assignee
Nissin Electric Co Ltd
Hokuriku Electric Power
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
Application filed by Nissin Electric Co Ltd, Hokuriku Electric Power filed Critical Nissin Electric Co Ltd
Publication of TW200605470A publication Critical patent/TW200605470A/en
Application granted granted Critical
Publication of TWI313953B publication Critical patent/TWI313953B/en

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
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H02J9/062—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for AC powered loads
    • 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
    • H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
    • H02J3/16—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by adjustment of reactive power
    • 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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/04—Modifications for accelerating switching
    • H03K17/0403—Modifications for accelerating switching in thyristor switches
    • 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
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H02J9/068—Electronic means for switching from one power supply to another power supply, e.g. to avoid parallel connection
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Stand-By Power Supply Arrangements (AREA)
  • Inverter Devices (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

When a commercial power supply is in normal state, a high-speed current-limiting circuit breaker (3) allows the commercial power supply to supply power to a load through a direct-current reactor. A backup power supply (4) is under PQ control so as to supply zero active and reactive power to a load (9). A response cycle of PQ control is set to be longer than a fault detection cycle of a fault detector (2) for detecting faults to occur in the commercial power supply, so that the backup power supply (4) can supply power uninterruptedly to the load (9) and to a fault point, during a period from occurrence of a fault to detection thereof. Also, impedance of the direct-current reactor (14) is set to (100 Z) / A or higher so that a voltage supplied to the load (9) in the event of a fault drops at a lower rate than a permissible voltage drop rate. When the fault detector (2) detects a power supply fault, the PQ control for the backup power supply (4) is halted and high-speed switches (13a), (13b) are opened.
TW094109738A 2004-03-29 2005-03-29 Uninterruptible power supply and power outage backup system TWI313953B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004094934A JP3929449B2 (en) 2004-03-29 2004-03-29 Uninterruptible power supply and power failure compensation system

Publications (2)

Publication Number Publication Date
TW200605470A true TW200605470A (en) 2006-02-01
TWI313953B TWI313953B (en) 2009-08-21

Family

ID=35056517

Family Applications (1)

Application Number Title Priority Date Filing Date
TW094109738A TWI313953B (en) 2004-03-29 2005-03-29 Uninterruptible power supply and power outage backup system

Country Status (5)

Country Link
JP (1) JP3929449B2 (en)
KR (1) KR100868372B1 (en)
CN (1) CN100452612C (en)
TW (1) TWI313953B (en)
WO (1) WO2005093925A1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3818302B2 (en) * 2004-07-23 2006-09-06 日新電機株式会社 Uninterruptible power system
US8207632B2 (en) 2007-01-12 2012-06-26 Meidensha Corporation Control device for uninterruptible power supply
US8791597B2 (en) 2010-03-12 2014-07-29 Liebert Corporation Uninterruptible power supply with a dual gain voltage regulator controlling an inverter output voltage based on active and reactive components of current
CN102075008A (en) * 2011-01-21 2011-05-25 大连理工大学 Electro-mechanical mixed voltage sag compensation device
CN103187789B (en) * 2011-12-30 2015-09-02 比亚迪股份有限公司 Quick uninterruptible power system and control method thereof
CN102694657A (en) * 2012-05-10 2012-09-26 太仓市同维电子有限公司 Switching method of home access gateway with spare electricity
JP6407775B2 (en) * 2015-03-13 2018-10-17 株式会社東芝 Power storage device
US10305322B2 (en) * 2015-12-01 2019-05-28 Toshiba Mitsubishi-Electric Industrial Systems Corporation Uninterruptible power supply device
KR101798915B1 (en) * 2016-01-12 2017-11-17 정순희 System and method for uninterruptible supply
CN107346905B (en) * 2016-05-06 2023-01-31 中兴通讯股份有限公司 Power supply method and device
JP7180112B2 (en) * 2018-05-15 2022-11-30 日新電機株式会社 Uninterruptible power system
KR102276024B1 (en) 2019-10-30 2021-07-12 엘에스일렉트릭(주) A sts(static transfer switch) and an ups(uninterruptible power supply) module with the sts
US20230352253A1 (en) * 2021-05-14 2023-11-02 Toshiba Mitsubishi-Electric Industrial Systems Corporation Power supply device

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0336209Y2 (en) * 1986-12-19 1991-07-31
JP3226077B2 (en) * 1994-09-09 2001-11-05 東洋電機製造株式会社 Multiplexed rectifier
JPH09163634A (en) * 1995-11-30 1997-06-20 Honda Motor Co Ltd Power supply system for emergency
JP2991106B2 (en) * 1996-04-12 1999-12-20 日新電機株式会社 Grid connection equipment
JPH1118304A (en) * 1997-06-25 1999-01-22 Toshiba Corp Link inverter
JPH11215738A (en) * 1998-01-26 1999-08-06 Hitachi Ltd Uninterruptible power supply
JPH11289668A (en) * 1998-04-03 1999-10-19 Tokyo Gas Co Ltd Apparatus and method for controlling reactive power
JPH11299103A (en) * 1998-04-08 1999-10-29 Nissin Electric Co Ltd System interlinkage device
CN1200500C (en) * 1998-08-07 2005-05-04 松下电器产业株式会社 Uninterruptible power system
JP3817921B2 (en) * 1998-09-01 2006-09-06 日新電機株式会社 Grid interconnection device
JP3725015B2 (en) * 2000-09-22 2005-12-07 山洋電気株式会社 Uninterruptible power system
JP2004201413A (en) * 2002-12-18 2004-07-15 Nissin Electric Co Ltd Power storing system

Also Published As

Publication number Publication date
JP2005287125A (en) 2005-10-13
WO2005093925A1 (en) 2005-10-06
CN100452612C (en) 2009-01-14
TWI313953B (en) 2009-08-21
KR20060134995A (en) 2006-12-28
JP3929449B2 (en) 2007-06-13
CN1934765A (en) 2007-03-21
KR100868372B1 (en) 2008-11-12

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees