DE965913C - Method for connecting multi-phase generators in electrically powered ships, especially in those with diesel engines - Google Patents

Method for connecting multi-phase generators in electrically powered ships, especially in those with diesel engines

Info

Publication number
DE965913C
DE965913C DES14021D DES0014021D DE965913C DE 965913 C DE965913 C DE 965913C DE S14021 D DES14021 D DE S14021D DE S0014021 D DES0014021 D DE S0014021D DE 965913 C DE965913 C DE 965913C
Authority
DE
Germany
Prior art keywords
generators
diesel engines
electrically powered
switched
those
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
DES14021D
Other languages
German (de)
Inventor
Dr-Ing Michael Liwschitz
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.)
Siemens AG
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
Priority to DES14021D priority Critical patent/DE965913C/en
Application granted granted Critical
Publication of DE965913C publication Critical patent/DE965913C/en
Expired 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
    • H02J3/38Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/40Synchronising a generator for connection to a network or to another generator
    • H02J3/42Synchronising a generator for connection to a network or to another generator with automatic parallel connection when synchronisation is achieved
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63HMARINE PROPULSION OR STEERING
    • B63H23/00Transmitting power from propulsion power plant to propulsive elements
    • B63H23/22Transmitting power from propulsion power plant to propulsive elements with non-mechanical gearing
    • B63H23/24Transmitting power from propulsion power plant to propulsive elements with non-mechanical gearing electric
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63HMARINE PROPULSION OR STEERING
    • B63H21/00Use of propulsion power plant or units on vessels
    • B63H21/21Control means for engine or transmission, specially adapted for use on marine vessels
    • B63H2021/216Control means for engine or transmission, specially adapted for use on marine vessels using electric control means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63HMARINE PROPULSION OR STEERING
    • B63H21/00Use of propulsion power plant or units on vessels
    • B63H21/24Use of propulsion power plant or units on vessels the vessels being small craft, e.g. racing boats
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2310/00The network for supplying or distributing electric power characterised by its spatial reach or by the load
    • H02J2310/40The network being an on-board power network, i.e. within a vehicle
    • H02J2310/42The network being an on-board power network, i.e. within a vehicle for ships or vessels

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Control Of Eletrric Generators (AREA)

Description

Bei elektrisch angetriebenen Schiffen, namentlich solchen mit Dieselmotoren zum Antrieb von Mehrphasengeneratoren, wird die Generatorleistung meistens in mehrere Einheiten unterteilt. Bei kleineren Schiffsgeschwindigkeiten arbeitet dann ein Generator auf den-Propellermotor, bei größeren Schiffsgeschwindigkeiten arbeiten mehrere Generatoren parallel auf den Propellermotor. Beim Übergang von der kleinen Schiffsgeschwindigkeit auf die größere werden die außer Betrieb befindlichen Generatoren zugeschaltet. Es ist nun vorgeschlagen worden, beim Zuschalten alle Generatoren in unerregtem Zustande zusammenzuschalten und sie sodann anzuregen. Mit diesem Verfahren ist aber der Nachteil verbunden, daß während der Zuschaltzeit der Propellermotor spannungslos gemacht wird, so daß er von neuem in Betrieb genommen werden muß. Dieser Nachteil könnte dadurch vermieden werden, daß die neu zuzuschaltenden Generatoren in bekannter Weise mit dem laufenden Generator fein synchronisiert werden. Dieses Verfahren ist jedoch auf Schiffen unbequem, weil es nicht einfach ist, die Drehzahlen der zuzuschaltenden Generatoren der Drehzahl des laufenden Generators anzupassen. Außerdem bedingt dieses Verfahren Leistungsschalter zwischen den Sammelschienen und den Generatoren.For electrically powered ships, especially those with diesel engines To drive multi-phase generators, the generator output is usually divided into several Units divided. A generator then works at lower ship speeds on the propeller motor, several generators work at higher ship speeds parallel to the propeller motor. When transitioning from the low speed of the ship The generators that are not in operation are switched on to the larger one. It has now been proposed that all generators be in the de-energized state when switching on To interconnect states and then to stimulate them. With this procedure is however associated with the disadvantage that the propeller motor is de-energized during the connection time is made so that it has to be put into operation again. This disadvantage could thus be avoided that the new generators to be switched on in known Way to be finely synchronized with the running generator. This procedure is however inconvenient on ships because it is not easy to control the speeds of the to be switched on Adapt generators to the speed of the running generator. In addition, this requires Move circuit breakers between the busbars and the generators.

Nach der Erfindung soll sowohl das Außerbetriebnehmen des Motors als auch das Feinsynchronisieren dadurch vermieden werden, daß die Generatoren offene Sternpunkte erhalten und daß die in Betrieb zu nehmenden Generatoren an diesen Punkten zweckmäßig durch Luftschütze zugeschaltet werden. Durch das Zuschalten im Sternpunkt werden die erforderlichen Abmessungen der Leistungsschalter (Luftschütze) kleiner als bei den bekannten Verfahren.According to the invention, both the shutdown of the engine as fine synchronization can also be avoided by keeping the generators open Obtained star points and that the generators to be put into operation at these points can be switched on appropriately by air contactors. By switching on at the star point the required dimensions of the circuit breakers (air contactors) become smaller than with the known methods.

In der Zeichnung sind zwei Ausführungsbeispiele der Erfindung veranschaulicht. In beiden Fällen wird beim Zuschalten der Generatoren das sogenannte Grobsynchronisieren verwendet. Die Generatoren I, 2 und 3 speisen über die Trennschalter 6; 7, 8 und 9 und die Sammelschienen 4 den Antriebsmotor 5 für die Propellerwelle eines Schiffes. Die Sternpunkte der Generatoren sind offen und können in beiden Fällen durch Schütze Io, II und I2 geschlossen werden. In der in Fig. I dargestellten Schaltung ist außerdem noch eine Drossel 13 vorgesehen, die an Sammelschienen I4 angeschlossen ist, mit denen die offenen Sternpunkte der drei Generatoren durch Trennschalter I5, 16 und 17 verbunden sind. Die Drossel dient zum Grobsynchronisieren der jeweils zuzuschaltenden Generatoren. Angenommen, die Generatoren 2 und 3 sind mit dem Motor zusammengeschaltet und der Generator I soll zugeschaltet werden, dann brauchen die Sammelschienen 4 nicht spannungslos gemacht zu werden, sondern die Trennschalter 6 und 15 werden, nachdem der Generator I durch seine Antriebsmaschine hochgefahren ist, einfach eingelegt und darauf wird der Sternpunkt der Drossel 13 durch das Schütz 18 geschlossen, das kleiner ausfällt als bei dem genannten Verfahren verwendete Leistungsschalter. Nachdem der Generator I sich gefangen hat, wird auch das Schütz Io geschlossen. Der Trennschalter 15 kann dann wieder geöffnet werden.Two exemplary embodiments of the invention are illustrated in the drawing. In both cases, what is known as coarse synchronization is used when the generators are switched on used. The generators I, 2 and 3 feed through the disconnector 6; 7, 8 and 9 and the busbars 4 the drive motor 5 for the propeller shaft of a ship. The star points of the generators are open and in both cases can be through contactors Io, II and I2 are closed. In the circuit shown in Fig. I is also a choke 13, which is connected to busbars I4, is also provided where the open star points of the three generators are connected to circuit breakers I5, 16 and 17 are connected. The throttle is used for coarse synchronization of the respectively to be switched on Generators. Assume generators 2 and 3 are interconnected with the engine and the generator I is to be switched on, then the busbars need 4 not to be de-energized, but the disconnectors 6 and 15 are, after the generator I has started up by its prime mover, simply inserted and then the star point of the choke 13 is closed by the contactor 18, the is smaller than the circuit breaker used in the process mentioned. After this the generator I has caught, the contactor Io is also closed. The circuit breaker 15 can then be opened again.

In der in Fig.2 dargestellten Schaltung wird für den gleichen Fall, daß die Generatoren 2 und 3 bereits mit dem Motor zusammengeschaltet sind, und der Generator I zugeschaltet werden soll, zuerst der Schalter 6 eingelegt und darauf das Schütz Io geschlossen. Der Generator fährt dann unerregt mit Hilfe seiner Dämpferwicklung asynchron hoch.In the circuit shown in Fig. 2, for the same case, that the generators 2 and 3 are already connected to the engine, and the Generator I is to be switched on, first the switch 6 is inserted and then the contactor Io closed. The generator then runs in an unexcited state with the help of its damper winding asynchronously high.

Claims (3)

PATENTANSPRÜCHE: I. Verfahren zum Zuschalten von Mehrphasengeneratoren bei elektrisch angetriebenen Schiffen, insbesondere bei solchen mit Dieselantrieb der Generatoren, dadurch gekennzeichnet, daß die Sternpunkte der induzierten Generatorwicklungen zunächst offen gelassen und dann, zweckmäßig durch Schütze, geschlossen werden. PATENT CLAIMS: I. Method for connecting multi-phase generators in electrically powered ships, especially those with diesel engines of the generators, characterized in that the star points of the induced generator windings initially left open and then, expediently, closed by contactors. 2. Verfahren nach Anspruch I, dadurch gegekennzeichnet, daß diezuzuschaltenden Generatoren mit einer Drossel grob synchronisiert werden, die zweckmäßig für alle Generatoren gemeinsam ist. 2. The method according to claim I, characterized in that the generators to be switched be roughly synchronized with a throttle, which is useful for all generators is common. 3. Verfahren nach Anspruch i, dadurch gekennzeichnet, daß die zuzuschaltenden Generatoren mit Hilfe ihrer Dämpferwicklungen asynchron hochgefahren werden. In Betracht gezogene Druckschriften: Deutsche Patentschriften Nr. 598 6022, 436 357; britische Patentschrift Nr. 413 668.3. The method according to claim i, characterized in that the generators to be switched on are started up asynchronously with the help of their damper windings. Considered publications: German Patent Specifications Nos. 598 6022, 436 357; British Patent No. 413,668.
DES14021D 1935-12-25 1935-12-25 Method for connecting multi-phase generators in electrically powered ships, especially in those with diesel engines Expired DE965913C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES14021D DE965913C (en) 1935-12-25 1935-12-25 Method for connecting multi-phase generators in electrically powered ships, especially in those with diesel engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES14021D DE965913C (en) 1935-12-25 1935-12-25 Method for connecting multi-phase generators in electrically powered ships, especially in those with diesel engines

Publications (1)

Publication Number Publication Date
DE965913C true DE965913C (en) 1957-06-27

Family

ID=7474462

Family Applications (1)

Application Number Title Priority Date Filing Date
DES14021D Expired DE965913C (en) 1935-12-25 1935-12-25 Method for connecting multi-phase generators in electrically powered ships, especially in those with diesel engines

Country Status (1)

Country Link
DE (1) DE965913C (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE436357C (en) * 1921-06-18 1926-10-27 Allg Elek Citaets Ges Fa Synchronous machine for asynchronous start-up
DE598602C (en) * 1930-08-20 1934-06-14 Siemens Schuckertwerke Akt Ges Driving for asynchronous starting of synchronous machines with cage winding in a system
GB413668A (en) * 1932-11-14 1934-07-16 Gen Electric Co Ltd Improvements in or relating to electric ship propulsion systems

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE436357C (en) * 1921-06-18 1926-10-27 Allg Elek Citaets Ges Fa Synchronous machine for asynchronous start-up
DE598602C (en) * 1930-08-20 1934-06-14 Siemens Schuckertwerke Akt Ges Driving for asynchronous starting of synchronous machines with cage winding in a system
GB413668A (en) * 1932-11-14 1934-07-16 Gen Electric Co Ltd Improvements in or relating to electric ship propulsion systems

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