ZA975118B - Capacity judging apparatus of capacitor in power converter outputting three level voltage. - Google Patents

Capacity judging apparatus of capacitor in power converter outputting three level voltage.

Info

Publication number
ZA975118B
ZA975118B ZA9705118A ZA975118A ZA975118B ZA 975118 B ZA975118 B ZA 975118B ZA 9705118 A ZA9705118 A ZA 9705118A ZA 975118 A ZA975118 A ZA 975118A ZA 975118 B ZA975118 B ZA 975118B
Authority
ZA
South Africa
Prior art keywords
capacitor
power converter
level voltage
judging apparatus
capacity judging
Prior art date
Application number
ZA9705118A
Other languages
English (en)
Inventor
Kiyoshi Nakata
Kiyoshi Terasawa
Syuuji Saitou
Original Assignee
Hitachi 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
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Publication of ZA975118B publication Critical patent/ZA975118B/xx

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/16—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for capacitors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
    • 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
    • H02H3/20—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 voltage
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)
  • Protection Of Static Devices (AREA)
  • Control Of Ac Motors In General (AREA)
ZA9705118A 1996-06-14 1997-06-10 Capacity judging apparatus of capacitor in power converter outputting three level voltage. ZA975118B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15369996A JP3173376B2 (ja) 1996-06-14 1996-06-14 ３レベル電力変換器のコンデンサ容量判定装置

Publications (1)

Publication Number Publication Date
ZA975118B true ZA975118B (en) 1997-12-31

Family

ID=15568190

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA9705118A ZA975118B (en) 1996-06-14 1997-06-10 Capacity judging apparatus of capacitor in power converter outputting three level voltage.

Country Status (6)

Country Link
JP (1) JP3173376B2 (ja)
KR (1) KR980006703A (ja)
CN (1) CN1169049A (ja)
AU (1) AU690489B2 (ja)
BR (1) BR9703583A (ja)
ZA (1) ZA975118B (ja)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6115312Y2 (ja) * 1980-01-22 1986-05-13
FI120280B (fi) 2008-01-21 2009-08-31 Switch High Power Converters O Menetelmä tasajännitevälipiirin kondensaattorien kunnonvalvontaan
DE102013104847A1 (de) * 2013-05-10 2014-11-13 Ebm-Papst Mulfingen Gmbh & Co. Kg "Schutzbeschaltung für Isolationsschäden durch Ausfall von Zwischenkreiskondensatoren"
EP3242391B1 (en) * 2016-05-03 2020-03-04 ABB Schweiz AG Method for monitoring change in capacitance in electric system and electric system
JP7002985B2 (ja) * 2018-04-12 2022-01-20 株式会社東芝 電力変換装置および電力変換装置の制御方法
CN109347354B (zh) * 2018-11-26 2020-06-05 合肥科威尔电源系统股份有限公司 基于三次谐波注入的中点电压纹波抑制装置及方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4225912A (en) * 1978-12-22 1980-09-30 United Technologies Corporation Control for an auxiliary commutation circuit
CH667761A5 (de) * 1985-06-28 1988-10-31 Bbc Brown Boveri & Cie Hochspannungs-gleichspannungsquelle.

Also Published As

Publication number Publication date
KR980006703A (ko) 1998-03-30
AU2370697A (en) 1998-01-08
JP3173376B2 (ja) 2001-06-04
BR9703583A (pt) 1998-07-07
JPH104626A (ja) 1998-01-06
CN1169049A (zh) 1997-12-31
AU690489B2 (en) 1998-04-23

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