FI911204A0 - SKYDDS- OCH MONITORANORDNING FOER ETT PULSMOTSTAONDSARRANGEMANG I EN SPAENNINGSMELLANKRETSOMRIKTARE. - Google Patents

SKYDDS- OCH MONITORANORDNING FOER ETT PULSMOTSTAONDSARRANGEMANG I EN SPAENNINGSMELLANKRETSOMRIKTARE.

Info

Publication number
FI911204A0
FI911204A0 FI911204A FI911204A FI911204A0 FI 911204 A0 FI911204 A0 FI 911204A0 FI 911204 A FI911204 A FI 911204A FI 911204 A FI911204 A FI 911204A FI 911204 A0 FI911204 A0 FI 911204A0
Authority
FI
Finland
Prior art keywords
converter
pulse resistor
spaenningsmellankretsomriktare
skydds
pulsmotstaondsarrangemang
Prior art date
Application number
FI911204A
Other languages
Finnish (fi)
Other versions
FI911204A (en
Inventor
Armin Schrepfer
Ulrich Link
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Publication of FI911204A0 publication Critical patent/FI911204A0/en
Publication of FI911204A publication Critical patent/FI911204A/en

Links

Classifications

    • 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
    • H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/40—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc
    • H02M5/42—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters
    • H02M5/44—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac
    • H02M5/453—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M5/458—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • 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
    • H02H7/10—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 converters; for rectifiers
    • H02H7/12—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 converters; for rectifiers for static converters or rectifiers
    • H02H7/1216—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 converters; for rectifiers for static converters or rectifiers for AC-AC converters

Abstract

The invention relates to a protection and monitoring device (36) for a pulse resistor arrangement (8) of a voltage intermediate circuit converter (2), the pulse resistor arrangement (8) being connected electrically in parallel with a voltage intermediate circuit (6) and consisting of a series circuit comprising a converter valve (16), which can be switched on and off, and a freewheeling diode (18), a driving device (20) and a pulse resistor. According to the invention, connected electrically in parallel with the freewheeling diode (18) is a second converter valve (26) which can be switched on and off, a fuse (32) is arranged between a junction point (28) of the cathode of the freewheeling diode (18) - pulse resistor (22) and a positive terminal (30) of the voltage intermediate circuit (6), and a junction point (34) of the two converter valves (16, 26) is electrically conductively connected to the monitoring device (36). In this way, a simple and cost-effective protection and monitoring device (36) is obtained, restricted operation of the converter (2) being possible after a short-circuit at the rectifier valve (16) of the pulse resistor arrangement (8). <IMAGE>
FI911204A 1990-04-06 1991-03-12 SKYDDS- OCH MONITORANORDNING FOER ETT PULSMOTSTAONDSARRANGEMANG I EN SPAENNINGSMELLANKRETSOMRIKTARE. FI911204A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP90106586A EP0450126B1 (en) 1990-04-06 1990-04-06 Protection and monitoring device for a pulse resistor of a voltage intermediate circuit converter

Publications (2)

Publication Number Publication Date
FI911204A0 true FI911204A0 (en) 1991-03-12
FI911204A FI911204A (en) 1991-10-07

Family

ID=8203865

Family Applications (1)

Application Number Title Priority Date Filing Date
FI911204A FI911204A (en) 1990-04-06 1991-03-12 SKYDDS- OCH MONITORANORDNING FOER ETT PULSMOTSTAONDSARRANGEMANG I EN SPAENNINGSMELLANKRETSOMRIKTARE.

Country Status (4)

Country Link
EP (1) EP0450126B1 (en)
AT (1) ATE101761T1 (en)
DE (1) DE59004622D1 (en)
FI (1) FI911204A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19824269A1 (en) * 1998-05-29 1999-12-02 Alcatel Sa Protective circuit arrangement for disconnecting a direct current circuit
DE102008034619A1 (en) * 2008-07-25 2010-01-28 Converteam Technology Ltd., Warwickshire Electrical circuit operating method for generating electrical energy in e.g. wind power generation system, involves connecting intermediate circuit with short-circuit resistance and short-circuiting switch
DE102008052545A1 (en) * 2008-10-21 2010-04-22 Sew-Eurodrive Gmbh & Co. Kg Arrangement with braking resistor

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK132599C (en) * 1972-11-08 1976-05-31 Danfoss As OVERVOLTAGE PROTECTION DEVICE FOR AN INVERTER

Also Published As

Publication number Publication date
DE59004622D1 (en) 1994-03-24
FI911204A (en) 1991-10-07
EP0450126A1 (en) 1991-10-09
EP0450126B1 (en) 1994-02-16
ATE101761T1 (en) 1994-03-15

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Legal Events

Date Code Title Description
FD Application lapsed