BR9703583A - Capacitor capacity evaluation device in a power converter that emits a three-level voltage - Google Patents

Capacitor capacity evaluation device in a power converter that emits a three-level voltage

Info

Publication number
BR9703583A
BR9703583A BR9703583A BR9703583A BR9703583A BR 9703583 A BR9703583 A BR 9703583A BR 9703583 A BR9703583 A BR 9703583A BR 9703583 A BR9703583 A BR 9703583A BR 9703583 A BR9703583 A BR 9703583A
Authority
BR
Brazil
Prior art keywords
emits
power converter
evaluation device
level voltage
capacitor capacity
Prior art date
Application number
BR9703583A
Other languages
Portuguese (pt)
Inventor
Syuuji Saitou
Kiyoshi Terasawa
Kiyoshi Nakata
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 BR9703583A publication Critical patent/BR9703583A/en

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)
BR9703583A 1996-06-14 1997-06-16 Capacitor capacity evaluation device in a power converter that emits a three-level voltage BR9703583A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15369996A JP3173376B2 (en) 1996-06-14 1996-06-14 Apparatus for determining the capacitance of a capacitor of a three-level power converter

Publications (1)

Publication Number Publication Date
BR9703583A true BR9703583A (en) 1998-07-07

Family

ID=15568190

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9703583A BR9703583A (en) 1996-06-14 1997-06-16 Capacitor capacity evaluation device in a power converter that emits a three-level voltage

Country Status (6)

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

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6115312Y2 (en) * 1980-01-22 1986-05-13
FI120280B (en) 2008-01-21 2009-08-31 Switch High Power Converters O Method for monitoring the condition of DC capacitors
DE102013104847A1 (en) * 2013-05-10 2014-11-13 Ebm-Papst Mulfingen Gmbh & Co. Kg "Protective circuit for insulation damage due to failure of DC link capacitors"
EP3242391B1 (en) * 2016-05-03 2020-03-04 ABB Schweiz AG Method for monitoring change in capacitance in electric system and electric system
JP7002985B2 (en) * 2018-04-12 2022-01-20 株式会社東芝 Power converter and control method of power converter
CN109347354B (en) * 2018-11-26 2020-06-05 合肥科威尔电源系统股份有限公司 Midpoint voltage ripple suppression device and method based on third harmonic injection

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 (en) * 1985-06-28 1988-10-31 Bbc Brown Boveri & Cie HIGH VOLTAGE DC VOLTAGE SOURCE.

Also Published As

Publication number Publication date
ZA975118B (en) 1997-12-31
CN1169049A (en) 1997-12-31
KR980006703A (en) 1998-03-30
AU2370697A (en) 1998-01-08
AU690489B2 (en) 1998-04-23
JP3173376B2 (en) 2001-06-04
JPH104626A (en) 1998-01-06

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Legal Events

Date Code Title Description
FA10 Dismissal: dismissal - article 33 of industrial property law
B11Y Definitive dismissal acc. article 33 of ipl - extension of time limit for request of examination expired