FI96370C - Menetelmä varavirtalähteen akun sisäisen impedanssin tarkastamiseksi ja varavirtalähde - Google Patents

Menetelmä varavirtalähteen akun sisäisen impedanssin tarkastamiseksi ja varavirtalähde Download PDF

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Publication number
FI96370C
FI96370C FI924425A FI924425A FI96370C FI 96370 C FI96370 C FI 96370C FI 924425 A FI924425 A FI 924425A FI 924425 A FI924425 A FI 924425A FI 96370 C FI96370 C FI 96370C
Authority
FI
Finland
Prior art keywords
battery
backup power
power supply
load
value
Prior art date
Application number
FI924425A
Other languages
English (en)
Swedish (sv)
Other versions
FI924425A (fi
FI96370B (fi
FI924425A0 (fi
Inventor
Lennart Jonsson
Ove Oehman
Original Assignee
Fps Power Systems Oy Ab
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 Fps Power Systems Oy Ab filed Critical Fps Power Systems Oy Ab
Priority to FI924425A priority Critical patent/FI96370C/fi
Publication of FI924425A0 publication Critical patent/FI924425A0/fi
Priority to US08/122,678 priority patent/US5457377A/en
Priority to GB9320025A priority patent/GB2271229B/en
Priority to DE4333520A priority patent/DE4333520A1/de
Publication of FI924425A publication Critical patent/FI924425A/fi
Publication of FI96370B publication Critical patent/FI96370B/fi
Application granted granted Critical
Publication of FI96370C publication Critical patent/FI96370C/fi

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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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/389—Measuring internal impedance, internal conductance or related variables
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/385—Arrangements for measuring battery or accumulator variables
    • G01R31/386—Arrangements for measuring battery or accumulator variables using test-loads
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S320/00—Electricity: battery or capacitor charging or discharging
    • Y10S320/18—Indicator or display
    • Y10S320/21—State of charge of battery

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Secondary Cells (AREA)
  • Stand-By Power Supply Arrangements (AREA)

Claims (7)

1. Menetelmä varavirtalähteen akun (1) sisäisen impedanssin tarkastamiseksi, jolloin akun kuormaan purkau- 5 tumisen aikana mitataan tai lasketaan kuorman aiheuttama, akun (1) läpi kulkeva kuormavirta (IL), tunnettu siitä, että mitataan akku jännitteeseen (UBatt) saatava vaih-tovirtakomponentti (UR), joka vastaa kuormavirtaa (IL), jolloin akun sisäisen impedanssin (ZB) arvo lasketaan näis-10 tä arvoista ja että saatua impedanssiarvoa tunnetulla tavalla verrataan ennalta määrättyyn referenssiarvoon (ZMX) akun kunnon määrittämiseksi.
2. Patenttivaatimuksen 1 mukainen menetelmä, tunnettu siitä, että kun mitatun impedanssiarvon (ZB) 15 todetaan ylittävän ennalta määrätyn referenssiarvon (Z^), annetaan liitetylle järjestelmälle hälytyssignaali.
3. Patenttivaatimuksen 1 tai 2 mukainen menetelmä, tunnettu siitä, että kun mitatun impedanssiarvon (ZB) todetaan ylittävän ennalta määrätyn referenssiarvon 20 (Z^), aloitetaan liitetyn järjestelmän sulkeminen.
4. Patenttivaatimuksen 1, 2 tai 3 mukainen menetelmä, tunnettu siitä, että akun (1) kuormaan purkautumisen aikana lasketaan akun läpi kulkeva virta mittaamalla kuormavirta (IL).
5. Varavirtalähde, joka käsittää akun (1), akkujän- nitteen vaihtosuuntaukseen tarkoitetun invertterin (2), kytkentäelimet (4, 6) kuormaan kytketyn virtalähteen vaihtamiseksi, latauslaitteen (7) akun lataamiseksi sekä lo-giikkayksikön (9) erilaisten ohjaustoimintojen toteuttami-30 seksi ja akun sisäisen impedanssin valvomiseksi mittaamalla tai laskemalla akun kuormaan purkautumisen aikana kuorman aiheuttama, akun läpi kulkeva kuormavirta (IL), tunne t t u siitä, että logiikkayksikkö (9) on sovitettu mittaamaan vastaava vaihtovirtakomponentti (UR) akkujännit-35 teestä (UBatt) sekä vertaamaan tämän arvon perusteella las- 9 6 3 7 C kettua akun sisäisen impedanssin (ZB) arvoa ennalta määrättyyn referenssiarvoon (Zmax) ja vertailun perusteella tunnetulla tavalla määrittämään akun kunnon.
6. Patenttivaatimuksen 5 mukainen varavirtalähde, 5 tunnettu siitä, että kun mitatun impedanssiarvon (ZB) todetaan ylittävän ennalta määrätyn referenssiarvon (Zmax) / logiikkayksikkö (9) on sovitettu antamaan siitä signaali liitetylle järjestelmälle.
7. Patenttivaatimuksen 5 tai 6 mukainen varavirta-10 lähde, tunnettu siitä, että logiikkayksikkö (9) on sovitettu kuormavirran (IL) avulla laskemaan akun (1) läpi kulkevan virran.
FI924425A 1992-10-01 1992-10-01 Menetelmä varavirtalähteen akun sisäisen impedanssin tarkastamiseksi ja varavirtalähde FI96370C (fi)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FI924425A FI96370C (fi) 1992-10-01 1992-10-01 Menetelmä varavirtalähteen akun sisäisen impedanssin tarkastamiseksi ja varavirtalähde
US08/122,678 US5457377A (en) 1992-10-01 1993-09-17 Method of monitoring the internal impedance of an accumulator battery in an uninterruptible power supply, and an uninterruptible power supply
GB9320025A GB2271229B (en) 1992-10-01 1993-09-29 Monitoring the internal impedance of an accumulator battery in an uninterruptible power supply
DE4333520A DE4333520A1 (de) 1992-10-01 1993-10-01 Verfahren zur Überwachung der inneren Impedanz einer Akkumulatorenbatterie in einer unterbrechungsfreien Leistungsversorgung und eine UPS

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI924425A FI96370C (fi) 1992-10-01 1992-10-01 Menetelmä varavirtalähteen akun sisäisen impedanssin tarkastamiseksi ja varavirtalähde
FI924425 1992-10-01

Publications (4)

Publication Number Publication Date
FI924425A0 FI924425A0 (fi) 1992-10-01
FI924425A FI924425A (fi) 1994-04-02
FI96370B FI96370B (fi) 1996-02-29
FI96370C true FI96370C (fi) 1996-06-10

Family

ID=8535951

Family Applications (1)

Application Number Title Priority Date Filing Date
FI924425A FI96370C (fi) 1992-10-01 1992-10-01 Menetelmä varavirtalähteen akun sisäisen impedanssin tarkastamiseksi ja varavirtalähde

Country Status (4)

Country Link
US (1) US5457377A (fi)
DE (1) DE4333520A1 (fi)
FI (1) FI96370C (fi)
GB (1) GB2271229B (fi)

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FI924425A (fi) 1994-04-02
FI96370B (fi) 1996-02-29
FI924425A0 (fi) 1992-10-01
GB2271229B (en) 1996-01-03
GB9320025D0 (en) 1993-11-17
US5457377A (en) 1995-10-10
DE4333520A1 (de) 1994-04-07

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