DE967801C - Arrangement for automatic adjustment of multi-phase alternators working in parallel - Google Patents

Arrangement for automatic adjustment of multi-phase alternators working in parallel

Info

Publication number
DE967801C
DE967801C DEE3199A DEE0003199A DE967801C DE 967801 C DE967801 C DE 967801C DE E3199 A DEE3199 A DE E3199A DE E0003199 A DEE0003199 A DE E0003199A DE 967801 C DE967801 C DE 967801C
Authority
DE
Germany
Prior art keywords
arrangement
excitation
parallel
automatic adjustment
current
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.)
Expired
Application number
DEE3199A
Other languages
German (de)
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.)
Etabl Aubry & Simonin
Original Assignee
Etabl Aubry & Simonin
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 Etabl Aubry & Simonin filed Critical Etabl Aubry & Simonin
Application granted granted Critical
Publication of DE967801C publication Critical patent/DE967801C/en
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
    • H02P9/14—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field
    • H02P9/38—Self-excitation by current derived from rectification of both output voltage and output current of generator
    • 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
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
    • H02J3/466—Scheduling the operation of the generators, e.g. connecting or disconnecting generators to meet a given demand

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Eletrric Generators (AREA)

Description

Die Erfindung bezieht sich auf eine Anordnung zum selbsttätigen Einregeln und Aufrechterhalten einer vorbestimmten Lastverteilung parallel arbeitender Mehrphasen-Wechselstromgeneratoren mit kompoundierender Selbsterregung über Strom- und Spannungstransformatoren unter Zwischenschaltung von Gleichrichtern in Brückenanordnung. Mit der Erfindung wird die Möglichkeit geschaffen, Wechselstrommaschinen mit dieser als besonders einfach und betriebssicher anerkannten kompoundierenden Selbsterregung in überraschend einfacher Weise fast ohne zusätzlichen Aufwand an Schaltmitteln zum stabilen Parallelarbeiten bei allen Betriebszuständen und bei selbsttätiger Einregelung einer vorbestimmten Lastübernahme zu bringen.The invention relates to an arrangement for automatic adjustment and maintaining a predetermined load sharing of multiphase alternators operating in parallel with compounding self-excitation via current and voltage transformers below Interconnection of rectifiers in a bridge arrangement. With the invention created the possibility of alternating current machines with this being particularly easy and reliable compounding self-excitation in surprisingly simple Way with almost no additional expenditure on switching means for stable parallel work in all operating states and with automatic adjustment of a predetermined one Bring load acceptance.

Die Erfindung besteht darin, daß die Erregerwicklungen der Mehrphasen-Wechselstromgeneratoren einerseits über je einen einstellbaren Widerstand und eine gemeinsame Leitung, andererseits über die gemeinsame Sternpunktverbindungsleitung der Generatoren parallel geschaltet sind, von welcher der Sternpunkt jedes Generators zugleich mit der Öffnung des zugehörigen Leistungsschalters abschaltbar ist.The invention consists in that the excitation windings of the polyphase alternators on the one hand via an adjustable resistor and a common line, on the other hand Connected in parallel via the common star point connection line of the generators are, from which the star point of each generator at the same time as the opening of the associated Circuit breaker can be switched off.

Mit dieser besonderen Parallelschaltung einerseits der Anker und andererseits der Erregerwicklungen in Verbindung mit der erfindungsgemäßen Schaltung der Sternpunktleitung werden bei jedem Betriebszustand, bei jeder Belastung und unabhängig von der gewählten Kompoundierungscharakteristik Ausgleichsströme unterdrückt und eine vorbestimmte Lastübernahme erzwungen.With this special parallel connection on the one hand the armature and on the other hand the excitation windings in connection with the inventive circuit of the star point line are in every operating state, with every load and regardless of the selected Compounding characteristic equalizing currents suppressed and a predetermined Forced load transfer.

Die erfindungsgemäße Anordnung ist in einem Ausführungsbeispiel betreffend das Zusammenarbeiten dreier Dreiphasengeneratoren Ai, A2, A3 mit ihrer Erregerschaltung in der Zeichnung schematisch dargestellt.The arrangement according to the invention is relevant in one embodiment the cooperation of three three-phase generators Ai, A2, A3 with their excitation circuit shown schematically in the drawing.

Die Parallelschaltung der Anker wird durch die Leistungsschalter I, bis I3 erreicht. Für die Erregerwicklungen der drei Maschinen ist eine Verbindungsleitung 4 vorgesehen, die über einstellbare Widerstände r die drei Erregerwicklungen 3 einseitig verbindet. Die anderen 'Wicklungsenden sind ebenfalls über eine gemeinsame Leitung verbunden und an die Schaltkontakte K4 gelegt. Bei der dargestellten Ausführungsform, die sich auf Dreiphasengeneratoren bezieht, ist dieser zweite Verbindungsleiter der neutrale Nulleiter N. Durch die Anordnung der einstellbaren Widerstände r kann der Erregerstrom jeder Einzelmaschine auf eine vorbestimmte Leistungsübernahme abgeglichen werden.The armature is connected in parallel by the circuit breaker I, until I3 reached. There is a connection line for the excitation windings of the three machines 4 provided, the three excitation windings 3 on one side via adjustable resistors r connects. The other 'winding ends are also on a common line connected and applied to the switching contacts K4. In the illustrated embodiment, which relates to three-phase generators, this second connecting conductor is the neutral neutral conductor N. Due to the arrangement of the adjustable resistors r can the excitation current of each individual machine is adjusted to a predetermined power take-off will.

Die Kompoundierungscharakteristik wird zweckmäßig durch Verwendung von im Eisenkreis stufenlos regelbaren Stromtransformatoren T2, insbesondere von Transformatoren mit regelbarem Luftspalt, bewirkt; hierdurch wird auch bei schwierigen Rückkopplungsbedingungen mit der erfindungsgemäßen Schaltung eine stabile genaue Lastverteilung erreicht.The compounding characteristic becomes appropriate by use of continuously variable current transformers T2 in the iron circuit, in particular of Transformers with adjustable air gap, causes; this also helps with difficult Feedback conditions with the circuit according to the invention a stable accurate Load sharing achieved.

Claims (3)

PATENTANSPRÜCHE: i. Anordnung zum selbsttätigen Einregeln und Aufrechterhalten einer vorbestimmten Lastverteilung parallel arbeitender Mehrphasen-Wechselstromgeneratoren mit kompoundierender Selbsterregung über Strom- und Spannungstransformatoren unter Zwischenschaltung von Gleichrichtern in Brückenanordnung, dadurch gekennzeichnet, daß die Erregerwicklungen (3) der Mehrphasen-Wechselstromgeneratoren (A1, A2, A3) einerseits über je einen einstellbaren Widerstand (r) und eine gemeinsame Leitung (4), andererseits über die gemeinsame Sternpunktverbindungsleitung (N) der Generatoren parallel geschaltet sind, von welcher der Sternpunkt jedes Generators zugleich mit der Öffnung des zugehörigen Leistungsschalters (Il, I2, I3) abschaltbar ist. PATENT CLAIMS: i. Arrangement for automatic adjustment and maintenance a predetermined load distribution of multiphase alternators operating in parallel with compounding self-excitation via current and voltage transformers below Interconnection of rectifiers in a bridge arrangement, characterized in that that the excitation windings (3) of the polyphase alternators (A1, A2, A3) on the one hand via an adjustable resistor (r) and a common line (4), on the other hand via the common neutral connection line (N) of the generators are connected in parallel, of which the star point of each generator at the same time with the opening of the associated circuit breaker (Il, I2, I3) can be switched off. 2. Anordnung nach Anspruch i, dadurch gekennzeichnet, daß der die Leistungsübernahme der Einzelmaschine bestimmende Erregerstrom durch einen Regelwiderstand in jedem Erregerkreis steuerbar ist. 2. Arrangement according to claim i, characterized in that the power takeover the excitation current that determines the individual machine through a rheostat in each Excitation circuit is controllable. 3. Anordnung nach Anspruch i oder 2, dadurch gekennzeichnet, daß die Kompoundierung durch magnetische Regelbarkeit des Stromtransformators (T2) stufenlos einstellbar ist, insbesondere durch Anwendung eines Transformators mit regelbarem Luftspalt. In Betracht gezogene Druckschriften: Deutsche Patentschriften Nr. 7o6 65o, 703 970, 9o6 457, 648 3o2. 659 142, 668 io8, 709 629, 731 178, 718 241; österreichische Patentschrift Nr. 134 19i.3. Arrangement according to claim i or 2, characterized in that the compounding is continuously adjustable by magnetic controllability of the current transformer (T2), in particular by using a transformer with an adjustable air gap. Considered publications: German patent specifications No. 7o6 65o, 703 970, 9o6 457, 648 3o2. 65 9 142, 668 io8, 7 0 9 62 9 , 73 1 178, 718 241; Austrian patent specification No. 134 19i.
DEE3199A 1950-08-03 1951-01-06 Arrangement for automatic adjustment of multi-phase alternators working in parallel Expired DE967801C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR967801X 1950-08-03

Publications (1)

Publication Number Publication Date
DE967801C true DE967801C (en) 1957-12-12

Family

ID=9500879

Family Applications (1)

Application Number Title Priority Date Filing Date
DEE3199A Expired DE967801C (en) 1950-08-03 1951-01-06 Arrangement for automatic adjustment of multi-phase alternators working in parallel

Country Status (1)

Country Link
DE (1) DE967801C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1056725B (en) * 1958-01-23 1959-05-06 Hans Still Ag Parallel operation of compounded three-phase generators
DE1092557B (en) * 1956-04-12 1960-11-10 Sarl Soc Gram Electric Multiphase alternating current electrical system
DE1162941B (en) * 1961-06-16 1964-02-13 Lloyd Dynamowerke G M B H Compounded synchronous machine

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT134191B (en) * 1928-07-12 1933-07-10 Aeg Union Elek Wien Arrangement for regulating the operating parameters of an electrical machine by means of grid-controlled steam or gas discharge vessels.
DE648302C (en) * 1933-05-07 1937-07-28 Siemens Schuckertwerke Akt Ges Arrangement for voltage regulation of synchronous machines
DE659142C (en) * 1936-04-23 1938-04-27 Aeg Arrangement to achieve a freely adjustable voltage and / or reactive power characteristic curve for generators
DE668108C (en) * 1931-04-17 1938-11-26 Aeg Control device for synchronous machines, the excitation energy of which is taken from the alternating current network via grid-controlled steam or gas discharge paths
DE703970C (en) * 1937-09-10 1941-03-20 Siemens Schuckertwerke Akt Ges nen
DE706457C (en) * 1938-12-16 1941-05-27 Siemens Schuckertwerke Akt Ges Arrangement for voltage regulation of synchronous machines
DE706650C (en) * 1937-07-16 1941-05-31 Siemens Schuckertwerke Akt Ges Arrangement for the excitation of synchronous machines, the excitation winding of which is fed from the mains via rectifiers
DE709629C (en) * 1931-12-31 1941-08-22 Aeg Arrangement for the operation of rectifiers, whose grid circles receive a phase-variable control AC voltage
DE718241C (en) * 1935-04-10 1942-03-06 Siemens Ag Device for the self-excitation of electrical alternating current machines
DE731178C (en) * 1936-03-04 1943-02-03 Aeg Arrangement for the current-dependent regulation of alternators

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT134191B (en) * 1928-07-12 1933-07-10 Aeg Union Elek Wien Arrangement for regulating the operating parameters of an electrical machine by means of grid-controlled steam or gas discharge vessels.
DE668108C (en) * 1931-04-17 1938-11-26 Aeg Control device for synchronous machines, the excitation energy of which is taken from the alternating current network via grid-controlled steam or gas discharge paths
DE709629C (en) * 1931-12-31 1941-08-22 Aeg Arrangement for the operation of rectifiers, whose grid circles receive a phase-variable control AC voltage
DE648302C (en) * 1933-05-07 1937-07-28 Siemens Schuckertwerke Akt Ges Arrangement for voltage regulation of synchronous machines
DE718241C (en) * 1935-04-10 1942-03-06 Siemens Ag Device for the self-excitation of electrical alternating current machines
DE731178C (en) * 1936-03-04 1943-02-03 Aeg Arrangement for the current-dependent regulation of alternators
DE659142C (en) * 1936-04-23 1938-04-27 Aeg Arrangement to achieve a freely adjustable voltage and / or reactive power characteristic curve for generators
DE706650C (en) * 1937-07-16 1941-05-31 Siemens Schuckertwerke Akt Ges Arrangement for the excitation of synchronous machines, the excitation winding of which is fed from the mains via rectifiers
DE703970C (en) * 1937-09-10 1941-03-20 Siemens Schuckertwerke Akt Ges nen
DE706457C (en) * 1938-12-16 1941-05-27 Siemens Schuckertwerke Akt Ges Arrangement for voltage regulation of synchronous machines

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1092557B (en) * 1956-04-12 1960-11-10 Sarl Soc Gram Electric Multiphase alternating current electrical system
DE1056725B (en) * 1958-01-23 1959-05-06 Hans Still Ag Parallel operation of compounded three-phase generators
DE1162941B (en) * 1961-06-16 1964-02-13 Lloyd Dynamowerke G M B H Compounded synchronous machine

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