DE1638397A1 - Process for maintaining constant voltage in three-phase networks - Google Patents

Process for maintaining constant voltage in three-phase networks

Info

Publication number
DE1638397A1
DE1638397A1 DE19671638397 DE1638397A DE1638397A1 DE 1638397 A1 DE1638397 A1 DE 1638397A1 DE 19671638397 DE19671638397 DE 19671638397 DE 1638397 A DE1638397 A DE 1638397A DE 1638397 A1 DE1638397 A1 DE 1638397A1
Authority
DE
Germany
Prior art keywords
voltage
proportional
taken
control
constant voltage
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
DE19671638397
Other languages
German (de)
Inventor
Michael Dipl-Ing Haeuser
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of DE1638397A1 publication Critical patent/DE1638397A1/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00Circuit arrangements for ac mains or ac distribution networks
    • H02J3/12Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
    • H02J3/16Circuit 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
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00Circuit arrangements for ac mains or ac distribution networks
    • H02J3/18Arrangements for adjusting, eliminating or compensating reactive power in networks
    • H02J3/1821Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators
    • H02J3/1835Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepless control
    • H02J3/1842Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepless control wherein at least one reactive element is actively controlled by a bridge converter, e.g. active filters
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/20Active power filtering [APF]
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/30Reactive power compensation

Description

Ver=ehren zur Bpannungekonetanthaltung in Drehstromnetzen Die Erfindung bezieht eich auf e3.n Verfahren zur dynamischen Bpannungekonatanthaltung in schwachen Drehstromnetzen, die zeit- weise stärkeren Belastungen durch Verbraucher mit hohem Blind- strombedari ausgesetzt sind, was meist unerwüaachte Spannungs- einbrdche zur holge hat. Es ist bekannt, Netzepaanungeabeenkungon, die von induktiven Iaaetetößen heuen, durch Zuschalten von Kondensatoren ent- gegenzuwirken. Ein weiteres bekanntes Verfahren betrifft die Ausregexung von Netzspannungsachwankwagen mit Hilfe von. Btell- traneformatoren. Beide Verfahren haben den Nachteil, daß die Ausregelung erstens träge und zweitens in Stufen erfolgt und da- mit nicht dem tatsächlichen, lastabhängigen Blindstromt edarf des Netzes entspricht. Diese Nachteile zu veraeiden J.st die Aufgabt der Erfindung Die Erfindung betrifft ein Verfahren zur dynrmisz;hen Spannungr3-- konstanthaltung in sahtwachen Drehätromnotzen mit Hilfƒ von zwangekommutierton Blindstromrichtern. Eino Erfindung eiiid darin gesehen, daß der jowoil igt, Blindstrombedarf äea :,a stutzenden @_°@g ehspou- Netzes durch. eino diuseem Bedarf direkt: proportionale nung abgebildet wird, welche zur Steuerung des Stromrichters benutzt wird. An Rand einer Zeichnung sei ein schematisches Ausführungsbeispiel der Erfindung erläuterte Die Schaltung der Big. 1 entspricht beispielsweise dem Netz- ausläufer eines Drehetrosaetzee. M bedeutet ein MeBglied zur Erfassung und Umwandlung des Wetzepeuaauagsietwertes in eine proportionale Gleiohepaanaag mit Eilte einer aus zwei um 300 elektrisch versetzten Graetn-ßrüeken bestehenden Gleichrichter- anordnung mit nachgeeahaltetes 8-C - Glättungsglied. Diese Gleichspannung wird in einem Differenzglied D mit einer der Retzsollepamung proportionalen Gleichspannung verglichen. Die Differenz beider Gleichspannungen, wird einem Regler R mit proportional-integralverhalten zugeführt, dessen Ausgangs- gleichspannung die Phasenlage der Zündimpulse für denRlind- stromrichter Bl bestimmt. Fig. 2 zeigt schematisch einen an sich bekannten stromr@-ichtgr, wie er in der Fig. 'i als Blindstrcmrichter Radendung findet. Ein Pufferkondensator auf der Glei chstrom3eite des Stromrich- ters ist mit Co bezeichnet. 1 bis 6 sind steuerbare, 7 bis '12 nichtsteuerbare Hä :b7 eitorelemente. Das Verfahren gemä.,3 der vorliege laänn Erx indtcni; et 'besondern. geeignet zur Stützung von ein- oder mehrDhaE,ii;:yri Notzaut;läufcsn, Bordnetzen, Usetmetzen oder netzltomnuti 3-t#tr=n anlagen, an denen starke Bliadleistungaverbraucher, .wie bei- epieiswdß.se großes Asynchron=schnen, Lichtoogenöfen usw. an- gegah:.osaen sind und eine schnelle und stetige Einstellung und $onstanthaltung der gewünschten Spannung erf orderlieh ist. Honor to keep voltage constant in three-phase networks The invention relates to e3.n methods for dynamic Voltage conatant maintenance in weak three-phase networks that wise higher loads from consumers with high blind are exposed to strombedari, which usually leads to unexpected tension has broken in to the holge. It is known to epaanungeabeenkenon network that of inductive Iaaetetossen hay, by connecting capacitors to counteract. Another known method relates to the Ausregexung of mains voltage rechargeable vehicles with the help of. Btell- transformer transformers. Both methods have the disadvantage that the Adjustment is firstly slow and secondly takes place in stages and there- with not the actual, load-dependent reactive current demand Network corresponds. It is the task to avoid these disadvantages the invention The invention relates to a method for dynamic tensioning keeping constant in sahtwachen rotary atromnotzen with the help of Forced commutated tone reactive power converters. An invention ought to be in it seen that the jowoil igt, reactive power demand äea:, a startling @ _ ° @ g ehspou- Network through. a diuseem need direct: proportional voltage is mapped , which is used to control the converter . A schematic exemplary embodiment of the invention is explained on the edge of a drawing. The circuit of the Big. 1 corresponds, for example, to the network offshoots of a twisted rose tea. M means a measuring element for Acquisition and conversion of the Wetzepeuaauagsietwert into a proportional Gleiohepaanaag with haste one out of two around 300 electrically offset Graetn-ßrücke existing rectifier arrangement with 8-C smoothing link. These DC voltage is in a differential element D with one of the Retzsollepamung compared to proportional DC voltage. The difference between the two DC voltages is a controller R with proportional-integral behavior supplied, whose output DC voltage the phase position of the ignition pulses for the converter Bl determined. Fig. 2 shows schematically a per se known stromr @ -ichtgr, as he finds the end of the wheel in Fig. 1 as a blind power converter. A buffer capacitor on the DC side of the converter ters is denoted by Co. 1 to 6 are controllable, 7 to '12 non-controllable monitor elements. The procedure according to., 3 of the present laänn Erx indtcni; et 'special. suitable for supporting one or more DhaE, ii;: yri Notzaut; Laufcsn, On-board networks, Usetmetzen or netzltomnuti 3-t # tr = n systems where heavy load consumers, like both epieiswdß.se large asynchronous = beautiful, light-oogen ovens etc. ggah: .osaen are and a fast e and steady setting and It is necessary to keep the desired voltage constant.

Claims (1)

1@ a @-e 1@ t a a a p r ti c h e z
1. Tertah@lat tur 8panavm &- skonetanthaltung in eohwaobiqlt -@eshats@oswtss !durch Blindetromeinspeiaung mit Hilfe `vbö, 1äcWRtisrten Otronrichtern, dadurch ge-
ken»elolaurt e W der jeweilige Blindetrombedart des zu etiitaenäf Xetsee durch eine diesen Bedarf direkt propor- tionale eldioba@nng abgebildet wird, welche zur Steue- rung des fromiohte» benutzt wird.
2. Verfahren nach daeprooh 1, dadurch gekennzeichnet, daB die de' Bliadetronbedart direkt proportionale Gleichspannung einem Ditterensglied (D) entnommen Wird, welches mit einer der Sollspannung des zu stützenden Netzes proportionalen Gleichspannung und zusätzlich mit einer dem Ietwert den $u
stützenden Netzes proportionalen Gleichspannung beaufschlagt wird.
3. Verfahren nach den Ansprüchen 1 und 2, dadurch gekonn$eich- net, daß zur Steuerung des Blindstromrichtere (B1) eine Regeleinrichtung mit vorwiegend 1'-I Verhalten vorgesehen ist, deren Auagangogleichspannvong die zur Blindstrom.io-
fr@@t'utig erforäör: .cba Steuer`.m@-e* : c;-E@h .it; :@nyrt-r.@;@ 9s i e:r@.t,-n@ i :-@ @s
üucüm@u.0gcbr@ una damit ein s e@ünd@xtun5@tv@=s@te=:_..@,@r@3 des Blindotrorrioh-tbra bewirkt. 4. Verfahren nach den AnsprüChen 1 bis 3, dadwL,chSekezm--
zeichnet e daß die dam Iatwert dos zu etttzead6n' Ntitzeo dirtgiet proportionale Gleichsranaung :-B. einer Eiu- um 300 elektrisch versetzten Grjetz-Brücken hestehendon Gleichrichteranoränung mit nachgeochaltetüm R-C-Gt ättian.-..
gliod entnommen wird.
1 @ a @ -e 1 @ taaapr ti che z
1. Tertah @ lat tur 8panavm & - skonetant attitude in eohwaobiqlt - @ eshats @ oswtss! through blind electricity feed with Help `vbö, 1äc W Rtisrten Otronrichters, thereby
ken »elolaurt e W the respective Blindetrombedart des zu etiitaenäf Xetsee through a direct propor- tional eldioba @ nng is mapped, which is used to control tion of the fromiohte »is used.
2. The method according to daeprooh 1, characterized in that the de 'Bliadetronbedart directly proportional DC voltage a third member (D) is taken, which with a proportional to the nominal voltage of the network to be supported DC voltage and additionally with one of the Ietwert the $ u
supporting network applied proportional DC voltage will.
3. The method according to claims 1 and 2, thereby allowing calibration net that to control the reactive power converter (B1 ) a Control device with predominantly 1'-I behavior provided whose Auagango DC voltage is the equivalent to the reactive current.
fr @@ t'utig requires: .cba Steuer`.m@-e*: c; -E @ h .it ; : @ nyrt-r. @; @ 9s ie: r @ .t, -n @ i: - @ @s
üucüm @ u.0gcbr @ una so that a se @ ünd @ xtun5 @ tv @ = s @ te =: _ .. @, @ r @ 3 of the Blindotrorrioh-tbra. 4. Method according to claims 1 to 3, dadwL, chSekezm--
draws e that the dam Iatwert dos zu etttzead6n 'Ntitzeo dirtgiet proportional uniformity: -B. one egg around 300 electrically displaced Grjetz bridges Rectifier arrangement with downstream RC-Gt ättian.- ..
gliod is taken.
DE19671638397 1967-07-06 1967-07-06 Process for maintaining constant voltage in three-phase networks Pending DE1638397A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL0056920 1967-07-06

Publications (1)

Publication Number Publication Date
DE1638397A1 true DE1638397A1 (en) 1971-08-26

Family

ID=7278139

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19671638397 Pending DE1638397A1 (en) 1967-07-06 1967-07-06 Process for maintaining constant voltage in three-phase networks

Country Status (1)

Country Link
DE (1) DE1638397A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003028202A1 (en) * 2001-09-21 2003-04-03 Honeywell International Inc. Power generating system including permanent magnet generator and shunt ac regulator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003028202A1 (en) * 2001-09-21 2003-04-03 Honeywell International Inc. Power generating system including permanent magnet generator and shunt ac regulator
US6838860B2 (en) 2001-09-21 2005-01-04 Honeywell International Inc. Power generating system including permanent magnet generator and shunt AC regulator

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