EP2218637A1 - Drive system for a ship - Google Patents

Drive system for a ship Download PDF

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Publication number
EP2218637A1
EP2218637A1 EP20090002100 EP09002100A EP2218637A1 EP 2218637 A1 EP2218637 A1 EP 2218637A1 EP 20090002100 EP20090002100 EP 20090002100 EP 09002100 A EP09002100 A EP 09002100A EP 2218637 A1 EP2218637 A1 EP 2218637A1
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EP
European Patent Office
Prior art keywords
generators
drive system
electric drives
drive
ship
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Granted
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EP20090002100
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German (de)
French (fr)
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EP2218637B1 (en
Inventor
Claus-D. Christophel
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Individual
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Individual
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Priority to ES09002100T priority Critical patent/ES2384816T3/en
Priority to EP20090002100 priority patent/EP2218637B1/en
Priority to DK09002100T priority patent/DK2218637T3/en
Priority to PL09002100T priority patent/PL2218637T3/en
Priority to AT09002100T priority patent/ATE553994T1/en
Publication of EP2218637A1 publication Critical patent/EP2218637A1/en
Application granted granted Critical
Publication of EP2218637B1 publication Critical patent/EP2218637B1/en
Priority to HRP20120593AT priority patent/HRP20120593T1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H23/00—Transmitting power from propulsion power plant to propulsive elements
    • B63H23/22—Transmitting power from propulsion power plant to propulsive elements with non-mechanical gearing
    • B63H23/24—Transmitting power from propulsion power plant to propulsive elements with non-mechanical gearing electric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B2241/00—Design characteristics
    • B63B2241/20—Designs or arrangements for particular purposes not otherwise provided for in this class
    • B63B2241/22—Designs or arrangements for particular purposes not otherwise provided for in this class for providing redundancy to equipment or functionality of a vessel, e.g. for steering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H23/00—Transmitting power from propulsion power plant to propulsive elements
    • B63H23/22—Transmitting power from propulsion power plant to propulsive elements with non-mechanical gearing
    • B63H23/24—Transmitting power from propulsion power plant to propulsive elements with non-mechanical gearing electric
    • B63H2023/245—Transmitting power from propulsion power plant to propulsive elements with non-mechanical gearing electric with two or more electric motors directly acting on a single drive shaft, e.g. plurality of electric rotors mounted on one common shaft, or plurality of electric motors arranged coaxially one behind the other with rotor shafts coupled together
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
    • B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
    • B63H5/08—Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller

Definitions

  • the invention relates to a drive system for a ship.
  • Ships of the type in question typically have as a drive unit to a diesel engine, with which a drive shaft is rotated by a propeller in rotary motion.
  • a drive shaft is rotated by a propeller in rotary motion.
  • several propellers may be provided on optionally a plurality of drive shafts.
  • Such ships can be designed as cargo ships and in particular as inland vessels.
  • Such inland vessels are operated in four different modes, namely the mode of uphill travel with fully loaded ship, the modes of descent in fully loaded or empty ship and the fashion of the canal cruise.
  • the design of the drive power is always carried out so that it is designed for the largest possible load case, namely the uphill with fully loaded ship to always have a power reserve available, which ensures a maneuvering of the ship even under the most unfavorable conditions.
  • the disadvantage here is that in most modes, in particular the modes of the descent and the mode of the channel travel only a small fraction of the power generated is needed, so that the drive unit is operated in an energetically unfavorable partial load operation.
  • Another disadvantage is that such drive systems are not fail-safe, that is, the failure of individual components can lead to maneuverability of the ship.
  • a drive system for a passenger ship has as a drive motor on a slow-running diesel engine, which is designed so that it covers the maximum travel speed required. For the additional power required to reach the top speed, an electric motor is connected in series with the diesel engine. The generation of electrical energy for this purpose by means of an arrangement of fast-running four-stroke engines.
  • the additional electric motor, the diesel engine can be designed energetically cheaper, but there is no reliability guaranteed.
  • the multiple drives which may be equipped in particular with propellers.
  • the drives are powered by an electrical power supply system.
  • This includes fuel cells that feed a DC grid, with which the power supply of normal drive drives takes place.
  • the power supply system includes an AC power grid with generators for powering high-speed propulsion systems. Energy can be exchanged between the DC and AC mains. In this arrangement, a redundancy is provided only for the units of the DC voltage network.
  • the invention has for its object to provide a drive system for a ship, which works energy efficient at high reliability.
  • the drive system according to the invention for a ship comprises at least one propeller arranged on a drive shaft.
  • On the at least one drive shaft a redundant arrangement of electrical drives is provided, which is associated with a redundant arrangement of generators for power supply.
  • the electric drives and the generators are individually controllable.
  • An essential advantage of the invention is that the components for the power supply of the electric drives and also the electric drives themselves are redundantly provided with the generators, so that a high reliability is achieved for the entire drive system.
  • the redundancy of the drive units also has a compact and inexpensive construction, since in such a drive unit only the electric drives must be designed multiple times, but not the drive shaft on which the electric drives are arranged, and not the associated propeller.
  • a control unit is provided for this purpose, which may be formed for example by a PLC or an arrangement of PLC controls.
  • this control unit may advantageously be a failure and / or error control of components of the drive system, so that controlled in dependence of this control, the generators and electric drives, preferably activated or disabled.
  • the generators and electric drives preferably activated or disabled.
  • the control of the components of the drive system is not only such that the reliability of the drive system is ensured. Rather, the control is also such that the most energy-efficient operation of the drive system is ensured.
  • a suitable number of electric drives on the or each drive shaft is activated depending on the currently required drive power.
  • a suitable number of generators is activated according to the current energy demand.
  • the preferably each consisting of a diesel engine and an electric generator generators are selectively activated so that they can be operated at their optimum operating points, so that the operation of the generators is optimized in terms of their energy consumption and power output.
  • the drive system can have an arrangement of identical generators.
  • the drive system has an arrangement of generators with different power values.
  • by selectively activating individual generators or groups of generators their overall performance can be tailored precisely to the current power requirement.
  • Another advantage of the drive system according to the invention is that with this the ship no longer has to be operated in inflexible discrete modes. Rather, the ship can be directly controlled via the bridge, that is, the operation of the drive system can be individually specified over the entire journey time of the ship, that is, the operating mode of the ship can be quickly and easily adapted to changing boundary conditions. This means just in inland vessels, where so far only a few Discrete operating modes, that is, driving levels were possible, a significant improvement in ship operation.
  • the ship can be operated with the drive system according to the invention also with discrete modes.
  • these may be the four known modes, namely full load hill climb, full load or no load ride, and channel travel.
  • a selection of a single generator or a group of generators is carried out by means of the control unit for each mode such that the power provided thereby corresponds to the power requirement in the single mode.
  • the selection of the activated generators is such that they can be operated at their optimum operating points, whereby a considerable energy saving is achieved.
  • FIG. 1 shows an embodiment of the drive system 1 according to the invention for a ship
  • the ship is formed by an inland vessel, that is in particular a cargo ship.
  • the drive system 1 has two propellers 2 in the present case, each propeller 2 being arranged at the end of a drive shaft 3.
  • the propellers 2 are arranged in a known manner in the rear area of the ship not shown separately.
  • the propellers 2 are arranged next to one another in the region of the hull at a distance from each other, wherein the drive shafts 3 extend at least approximately parallel to each other in the ship's longitudinal direction.
  • the propellers 2 are identical in the present case and have an array of propeller blades 2a arranged at regular angles to one another.
  • each drive shaft To drive the propeller 2 3 three electric drives 4 are provided on each drive shaft.
  • the electric drives 4 of a drive shaft 3 form a redundant drive unit for the associated propeller 2 to be driven.
  • the individual electric drives 4 may be identical or different.
  • Preferably 4 electric motors are used as electric drives, which already generate high torques at low speeds.
  • the electric drives 4 are designed as hollow shaft motors, which can be arranged as direct drives on the drive shaft 3.
  • a clutch 5 is provided on each drive shaft 3 between the electric drive 4 and the propeller 2.
  • Each electric drive 4 is preceded by an inverter 6.
  • a pivot bearing not shown, may be provided.
  • the electric drives 4 are expediently stored in foundations.
  • the drive components formed in this way advantageously form a preassembled module.
  • the voltage supply takes place via a DC voltage intermediate circuit 7.
  • a DC voltage provided in the DC intermediate circuit 7 is converted in the inverters 6 into an AC voltage with a frequency suitable for the electric drives 4.
  • the individual electric drives 4 can be activated or deactivated individually via switch 8 by coupling or uncoupling from the DC intermediate circuit 7.
  • each generator 9 is provided to generate the intermediate voltage in the DC intermediate circuit 7 .
  • a different number of multiple generators 9 may be provided, which may be generally identical or different.
  • a generator 9 is provided with a small power.
  • the three other generators 9 have the same power, which is greater than the power of the first generator 9.
  • the individual generators 9 form a redundant power supply unit.
  • the generators 9 each consist of a diesel engine and an electric generator.
  • Each generator 9 is an inverter 10 downstream. With the inverter 10 AC voltages generated in the generator 9 are transformed into a DC voltage and fed into the DC voltage intermediate circuit 7.
  • the generators 9 are each selectively switchable via a switch 11 to the DC voltage intermediate circuit 7.
  • FIG. 2 shows a block diagram of the drive system 1 according to FIG. 1
  • a control unit 12 is shown, by means of which the functions of the components of the drive system 1 are controlled or controlled.
  • the control unit 12 is formed by an arrangement of PLC controls.
  • the control unit 12 is connected via leads 13 to the switch 8.
  • the switches 8 can be actuated via the control unit 12 in such a way that the electrical drives 4 connected to them are connected to the DC voltage intermediate circuit 7 or switched off thereby, whereby the electric drives 4 are activated or deactivated.
  • the control unit 12 is further connected via leads 14 to the switch 11.
  • the switches 11 can be actuated via the control unit 12 in such a way that the generators 9 connected to them are connected to the DC voltage intermediate circuit 7 or switched off by the latter, as a result of which the generators 9 are activated or deactivated.
  • the other electrical components of the drive system 1, in particular the inverters 6, 10, are connected to the control unit 12 via lines which are not shown.
  • the control unit 12 is operated by a person operating unit, in particular a so-called telegraph 15, connected. This can be done from the bridge of the ship from control maneuvers.
  • the generators 9 and / or the electric drives 4 and the inverters 6, 10 and switches 8 associated therewith can advantageously be separated by switching means not shown separately, in particular so-called rail separators, and thus form separate subsystems.
  • the trained as barge ship is operated in the present case in four different modes.
  • the first fashion forms the so-called mountain ride of the ship at full load.
  • the power requirement is about 80% of the power that can be provided by the generators 9.
  • the three generators 9 are activated by means of the control unit 12 with high power, while the generator 9 is deactivated with low power.
  • the power requirement is about 50% and 35% respectively of the maximum available power.
  • two of the generators 9 with the larger power are expediently activated while the remaining generators 9 are deactivated.
  • the generator power can be adapted to the currently required power.
  • the respective activated generators 9 can be operated at their optimum operating points.
  • At least one generator 9 is deactivated.
  • an electric drive 4 per drive shaft 3 is always deactivated.
  • control unit 12 monitoring failover of the drive system 1.
  • the control unit 12 continuously checks the function of the connected units, in particular all electric drive components. If an error or a failure of at least one of these components is registered, an alarm signal is generated.
  • the drive system 1 is automatically transferred by the control unit 12 into a safe state.

Abstract

The system (1) has multiple propellers (2) arranged at drive shafts (3), and electric drives (4) whose redundant arrangement is arranged on each drive shaft. A redundant arrangement of generators (9) is attached to the redundant arrangement of the electric drives, where the electric drives and the generators are controlled individually by a control unit. The electric drives and the generators are selectively activated by a switching unit, where the generators are formed in an identical or different manner. The electric drives and the generators are separated from each other.

Description

Die Erfindung betrifft ein Antriebssystem für ein Schiff.The invention relates to a drive system for a ship.

Schiffe der in Rede stehenden Art weisen typischerweise als Antriebsaggregat einen Dieselmotor auf, mit dem eine Antriebswelle mit einem Propeller in Drehbewegung versetzt wird. Je nach Größe des Schiffs können auch mehrere Propeller an gegebenenfalls mehreren Antriebswellen vorgesehen sein.Ships of the type in question typically have as a drive unit to a diesel engine, with which a drive shaft is rotated by a propeller in rotary motion. Depending on the size of the ship, several propellers may be provided on optionally a plurality of drive shafts.

Derartige Schiffe können als Frachtschiffe und dabei insbesondere als Binnenschiffe ausgebildet sein. Derartige Binnenschiffe werden in vier unterschiedlichen Modes betrieben, nämlich dem Mode der Bergfahrt bei voll beladenem Schiff, den Modes der Talfahrt bei voll beladenem beziehungsweise leerem Schiff und dem Mode der Kanalfahrt.Such ships can be designed as cargo ships and in particular as inland vessels. Such inland vessels are operated in four different modes, namely the mode of uphill travel with fully loaded ship, the modes of descent in fully loaded or empty ship and the fashion of the canal cruise.

Die Auslegung der Antriebsleistung erfolgt dabei stets so, dass diese nach dem größtmöglichen Lastfall, nämlich der Bergfahrt bei voll beladenem Schiff ausgelegt wird, um stets eine Leistungsreserve zur Verfügung zu haben, die ein Manövrieren des Schiffs auch unter ungünstigsten Bedingungen gewährleistet.The design of the drive power is always carried out so that it is designed for the largest possible load case, namely the uphill with fully loaded ship to always have a power reserve available, which ensures a maneuvering of the ship even under the most unfavorable conditions.

Nachteilig hierbei ist, dass in den meisten Modes, insbesondere den Modes der Talfahrt und dem Mode der Kanalfahrt nur ein geringer Bruchteil der erzeugten Leistung benötigt wird, so dass das Antriebsaggregat in einem energetisch ungünstigen Teillastbetrieb betrieben wird. Weiterhin ist nachteilig, dass derartige Antriebssysteme nicht ausfallsicher sind, das heißt der Ausfall einzelner Komponenten kann zur Manövrierunfähigkeit des Schiffs führen.The disadvantage here is that in most modes, in particular the modes of the descent and the mode of the channel travel only a small fraction of the power generated is needed, so that the drive unit is operated in an energetically unfavorable partial load operation. Another disadvantage is that such drive systems are not fail-safe, that is, the failure of individual components can lead to maneuverability of the ship.

Aus der DE 35 31 990 A1 ist ein Antriebssystem für ein Fahrgastschiff bekannt. Dieses Antriebssystem weist als Antriebsmotor einen langsam laufenden Dieselmotor auf, der so ausgelegt ist, dass er die maximal benötigte Reisegeschwindigkeit abdeckt. Für den darüber hinaus gehenden Leistungsbedarf zum Erreichen der Spitzengeschwindigkeit ist mit dem Dieselmotor ein elektrischer Motor in Reihe geschaltet. Die Erzeugung der elektrischen Energie hierfür erfolgt mittels einer Anordnung schnell laufender Viertaktmotoren.From the DE 35 31 990 A1 is known a drive system for a passenger ship. This drive system has as a drive motor on a slow-running diesel engine, which is designed so that it covers the maximum travel speed required. For the additional power required to reach the top speed, an electric motor is connected in series with the diesel engine. The generation of electrical energy for this purpose by means of an arrangement of fast-running four-stroke engines.

Durch den zusätzlichen Elektromotor kann der Dieselmotor energetisch günstiger ausgelegt werden, jedoch ist auch dort keine Ausfallsicherheit gewährleistet.The additional electric motor, the diesel engine can be designed energetically cheaper, but there is no reliability guaranteed.

Aus der DE 102 31 152 A1 ist ein Schiff, insbesondere ein Marine-(Navy-) Schiff bekannt, das mehrere Antriebe, die insbesondere mit Propellern ausgestattet sein können, aufweist. Die Antriebe werden über ein elektrisches Energieversorgungssystem versorgt. Dieses umfasst Brennstoffzellen die ein Gleichstromnetz speisen, mit dem die Energieversorgung von Normalfahrtantrieben erfolgt. Zudem umfasst das Energieversorgungssystem ein Wechselstromnetz mit Generatoren zur Energieversorgung für Schnellfahrtantriebe. Zwischen dem Gleich- und Wechselstromnetz kann Energie ausgetauscht werden. Bei dieser Anordnung ist nur für die Einheiten des Gleichspannungsnetzes eine Redundanz vorgesehen.From the DE 102 31 152 A1 is a ship, in particular a marine (Navy) ship known, the multiple drives, which may be equipped in particular with propellers. The drives are powered by an electrical power supply system. This includes fuel cells that feed a DC grid, with which the power supply of normal drive drives takes place. In addition, the power supply system includes an AC power grid with generators for powering high-speed propulsion systems. Energy can be exchanged between the DC and AC mains. In this arrangement, a redundancy is provided only for the units of the DC voltage network.

Der Erfindung liegt die Aufgabe zugrunde, ein Antriebssystem für ein Schiff bereitzustellen, welches bei hoher Ausfallsicherheit energieeffizient arbeitet.The invention has for its object to provide a drive system for a ship, which works energy efficient at high reliability.

Zur Lösung dieser Aufgabe sind die Merkmale des Anspruchs 1 vorgesehen. Vorteilhafte Ausführungsformen und zweckmäßige Weiterbildungen der Erfindung sind in den Unteransprüchen beschrieben.To solve this problem, the features of claim 1 are provided. Advantageous embodiments and expedient developments of the invention are described in the subclaims.

Das erfindungsgemäße Antriebssystem für ein Schiff umfasst wenigstens einen an einer Antriebswelle angeordneten Propeller. Auf der wenigstens einen Antriebswelle ist eine redundante Anordnung von elektrischen Antrieben vorgesehen, welchen eine redundante Anordnung von Generatoren zur Spannungsversorgung zugeordnet ist. Die elektrischen Antriebe und die Generatoren sind einzeln steuerbar.The drive system according to the invention for a ship comprises at least one propeller arranged on a drive shaft. On the at least one drive shaft a redundant arrangement of electrical drives is provided, which is associated with a redundant arrangement of generators for power supply. The electric drives and the generators are individually controllable.

Ein wesentlicher Vorteil der Erfindung besteht darin, dass mit den Generatoren die Komponenten zur Energieversorgung der elektrischen Antriebe und auch die elektrischen Antriebe selbst redundant vorgesehen sind, so dass für das gesamte Antriebssystem eine hohe Ausfallsicherheit erzielt wird.An essential advantage of the invention is that the components for the power supply of the electric drives and also the electric drives themselves are redundantly provided with the generators, so that a high reliability is achieved for the entire drive system.

Besonders vorteilhaft hierbei ist, dass auf der oder jeder Antriebswelle eines Propellers mehrere elektrische Antriebe vorgesehen sind, so dass für jede Antriebswelle eine redundante Anordnung von Antrieben erhalten wird. Damit wird bei einem konstruktiv einfachen Aufbau eine besonders hohe Ausfallsicherheit erhalten, da auch bei Ausfall einzelner elektrischer Antriebe an einer Antriebswelle der an dieser Antriebswelle vorgesehene Propeller noch funktionsfähig bleibt. Somit ist auch bei derartigen Ausfällen die volle Funktions- und Manövrierfähigkeit des Schiffs noch gegeben.It is particularly advantageous here that several electric drives are provided on the or each drive shaft of a propeller, so that a redundant arrangement of drives is obtained for each drive shaft. This results in a structurally simple design a particularly high reliability, since even if individual electrical drives fail on a drive shaft provided on this drive shaft propeller still functional. Thus, even with such failures full functionality and maneuverability of the ship is still present.

Die Redundanz der Antriebseinheiten weist zudem einen kompakten und kostengünstigen Aufbau auf, da bei einer derartigen Antriebseinheit nur die elektrischen Antriebe mehrfach ausgelegt sein müssen, nicht jedoch die Antriebswelle, auf der die elektrischen Antriebe angeordnet sind, und auch nicht der zugeordnete Propeller.The redundancy of the drive units also has a compact and inexpensive construction, since in such a drive unit only the electric drives must be designed multiple times, but not the drive shaft on which the electric drives are arranged, and not the associated propeller.

Ein weiterer wesentlicher Aspekt der Erfindung besteht in der zentralen Steuerung der Komponenten des Antriebssystems. Zweckmäßigerweise ist hierzu eine Steuereinheit vorgesehen, die beispielsweise von einer SPS-Steuerung oder einer Anordnung von SPS-Steuerungen gebildet sein kann. In dieser Steuereinheit kann zweckmäßigerweise eine Ausfall- und/oder Fehlerkontrolle von Komponenten des Antriebssystems erfolgen, so dass in Abhängigkeit dieser Kontrolle die Generatoren und elektrischen Antriebe gesteuert, bevorzugt aktiviert oder deaktiviert werden. Zur Gewährleistung einer fehlersicheren Kontrollfunktion kann dabei die Steuereinheit selbst redundant, das heißt fehlersicher ausgelegt sein.Another essential aspect of the invention is the central control of the components of the drive system. Conveniently, a control unit is provided for this purpose, which may be formed for example by a PLC or an arrangement of PLC controls. In this control unit may advantageously be a failure and / or error control of components of the drive system, so that controlled in dependence of this control, the generators and electric drives, preferably activated or disabled. To ensure a fail-safe control function while the control unit itself redundant, that is designed to be fail-safe.

Besonders vorteilhaft erfolgt die Steuerung der Komponenten des Antriebssystems nicht nur derart, dass die Ausfallsicherheit des Antriebssystems gewährleistet ist. Vielmehr erfolgt die Steuerung auch derart, dass ein möglichst energieeffizienter Betrieb des Antriebssystems gewährleistet ist. Hierzu wird in Abhängigkeit der aktuell benötigten Antriebsleistung eine geeignete Anzahl von elektrischen Antrieben auf der oder jeder Antriebswelle aktiviert. Zudem wird entsprechend dem aktuellen Energiebedarf eine geeignete Anzahl von Generatoren aktiviert. Die vorzugsweise jeweils aus einem Dieselmotor und einem elektrischen Generator bestehenden Generatoren werden dabei derart selektiv aktiviert, dass diese in ihren optimalen Betriebspunkten betrieben werden können, so dass der Betrieb der Generatoren hinsichtlich deren Energieverbrauch und Leistungsabgabe optimiert ist.Particularly advantageously, the control of the components of the drive system is not only such that the reliability of the drive system is ensured. Rather, the control is also such that the most energy-efficient operation of the drive system is ensured. For this purpose, a suitable number of electric drives on the or each drive shaft is activated depending on the currently required drive power. In addition, a suitable number of generators is activated according to the current energy demand. The preferably each consisting of a diesel engine and an electric generator generators are selectively activated so that they can be operated at their optimum operating points, so that the operation of the generators is optimized in terms of their energy consumption and power output.

Prinzipiell kann das Antriebssystem eine Anordnung identisch ausgebildeter Generatoren aufweisen. Besonders vorteilhaft weist das Antriebssystem eine Anordnung von Generatoren mit unterschiedlichen Leistungswerten auf. Damit kann durch eine selektive Aktivierung einzelner Generatoren oder Gruppen von Generatoren deren Gesamtleistung genau auf den aktuellen Leistungsbedarf abgestimmt werden. Entsprechendes gilt für die elektrischen Antriebe des Antriebssystems.In principle, the drive system can have an arrangement of identical generators. Particularly advantageously, the drive system has an arrangement of generators with different power values. Thus, by selectively activating individual generators or groups of generators, their overall performance can be tailored precisely to the current power requirement. The same applies to the electrical drives of the drive system.

Ein weiterer Vorteil des erfindungsgemäßen Antriebssystem besteht darin, dass mit diesem das Schiff nicht mehr in unflexiblen diskreten Modes betrieben werden muss. Vielmehr kann über die Brücke das Schiff direkt gesteuert werden, das heißt der Betrieb des Antriebssystems kann über die gesamte Fahrzeit des Schiffes individuell vorgegeben werden, das heißt der Betriebsmode des Schiffes kann schnell und einfach an sich ändernde Randbedingungen angepasst werden. Dies bedeutet gerade bei Binnenschiffen, wo bislang nur wenige diskrete Betriebsmodes, das heißt Fahrstufen möglich waren, eine wesentliche Verbesserung des Schiffsbetriebs.Another advantage of the drive system according to the invention is that with this the ship no longer has to be operated in inflexible discrete modes. Rather, the ship can be directly controlled via the bridge, that is, the operation of the drive system can be individually specified over the entire journey time of the ship, that is, the operating mode of the ship can be quickly and easily adapted to changing boundary conditions. This means just in inland vessels, where so far only a few Discrete operating modes, that is, driving levels were possible, a significant improvement in ship operation.

Alternativ kann das Schiff mit dem erfindungsgemäßen Antriebssystem auch mit diskreten Modes betrieben werden. Im Fall eines Binnenschiffs können dies die vier bekannten Modes, nämlich Bergfahrt bei voller Beladung, Talfahrt bei voller Beladung oder ohne Beladung sowie Kanalfahrt sein. In diesem Fall erfolgt mittels der Steuereinheit für jeden Mode eine Auswahl eines einzelnen Generators oder einer Gruppe von Generatoren derart, dass die damit zur Verfügung gestellte Leistung dem Leistungsbedarf in dem einzelnen Mode entspricht. Dabei erfolgt die Auswahl der aktivierten Generatoren derart, dass diese bei ihren optimalen Betriebspunkten betrieben werden können, wodurch eine erhebliche Energieeinsparung erzielt wird.Alternatively, the ship can be operated with the drive system according to the invention also with discrete modes. In the case of an inland vessel, these may be the four known modes, namely full load hill climb, full load or no load ride, and channel travel. In this case, a selection of a single generator or a group of generators is carried out by means of the control unit for each mode such that the power provided thereby corresponds to the power requirement in the single mode. In this case, the selection of the activated generators is such that they can be operated at their optimum operating points, whereby a considerable energy saving is achieved.

Die Erfindung wird im Folgenden anhand der Zeichnungen erläutert. Es zeigen:

Figur 1:
Ausführungsbeispiel eines Antriebssystems für ein Schiff.
Figur 2:
Blockschaltbild des Antriebssystems gemäß Figur 1.
The invention will be explained below with reference to the drawings. Show it:
FIG. 1:
Embodiment of a drive system for a ship.
FIG. 2:
Block diagram of the drive system according to FIG. 1 ,

Figur 1 zeigt ein Ausführungsbeispiel des erfindungsgemäßen Antriebssystems 1 für ein Schiff Das Schiff ist von einem Binnenschiff, das heißt insbesondere einem Frachtschiff gebildet. Das Antriebssystem 1 weist im vorliegenden Fall zwei Propeller 2 auf, wobei jeder Propeller 2 am Ende einer Antriebswelle 3 angeordnet ist. Die Propeller 2 sind in bekannter Weise im Heckbereich des nicht gesondert dargestellten Schiffes angeordnet. Dabei sind die Propeller 2 im Bereich des Schiffsrumpfes nebeneinander in Abstand zueinander angeordnet, wobei die Antriebswellen 3 zumindest annähernd parallel zueinander in Schiffslängsrichtung verlaufen. Die Propeller 2 sind im vorliegenden Fall identisch ausgebildet und weisen eine Anordnung von in regelmäßigen Winkeln zueinander angeordneten Propellerblättern 2a auf. FIG. 1 shows an embodiment of the drive system 1 according to the invention for a ship The ship is formed by an inland vessel, that is in particular a cargo ship. The drive system 1 has two propellers 2 in the present case, each propeller 2 being arranged at the end of a drive shaft 3. The propellers 2 are arranged in a known manner in the rear area of the ship not shown separately. In this case, the propellers 2 are arranged next to one another in the region of the hull at a distance from each other, wherein the drive shafts 3 extend at least approximately parallel to each other in the ship's longitudinal direction. The propellers 2 are identical in the present case and have an array of propeller blades 2a arranged at regular angles to one another.

Zum Antrieb der Propeller 2 sind auf jeder Antriebswelle 3 zwei elektrische Antriebe 4 vorgesehen. Generell können auch mehrere elektrische Antriebe 4 auf einer Antriebswelle 3 vorgesehen sein. Die elektrischen Antriebe 4 einer Antriebswelle 3 bilden für den zugeordneten anzutreibenden Propeller 2 eine redundante Antriebseinheit. Die einzelnen elektrischen Antriebe 4 können identisch oder unterschiedlich ausgebildet sein. Vorzugsweise werden als elektrische Antriebe 4 Torquemotoren eingesetzt, die bei geringen Drehzahlen bereits hohe Drehmomente erzeugen. Zweckmäßig sind die elektrischen Antriebe 4 als Hohlwellenmotoren ausgebildet, die als Direktantriebe auf der Antriebswelle 3 angeordnet werden können. Wie aus Figur 2 ersichtlich, ist an jeder Antriebswelle 3 zwischen dem elektrischen Antrieb 4 und dem Propeller 2 eine Kupplung 5 vorgesehen. Jedem elektrischen Antrieb 4 ist ein Wechselrichter 6 vorgeordnet. Zwischen dem Propeller 2 und dem daran anschließenden elektrischen Antrieb 4 einer Antriebswelle 3 kann ein nicht dargestelltes Drehlager vorgesehen sein. Die elektrischen Antriebe 4 sind zweckmäßig in Fundamenten gelagert. Die so gebildete Antriebskomponenten bilden vorteilhaft eine vormontierte Baugruppe.To drive the propeller 2 3 three electric drives 4 are provided on each drive shaft. In general, several electric drives 4 can be provided on a drive shaft 3. The electric drives 4 of a drive shaft 3 form a redundant drive unit for the associated propeller 2 to be driven. The individual electric drives 4 may be identical or different. Preferably 4 electric motors are used as electric drives, which already generate high torques at low speeds. Suitably, the electric drives 4 are designed as hollow shaft motors, which can be arranged as direct drives on the drive shaft 3. How out FIG. 2 can be seen, a clutch 5 is provided on each drive shaft 3 between the electric drive 4 and the propeller 2. Each electric drive 4 is preceded by an inverter 6. Between the propeller 2 and the subsequent electric drive 4 of a drive shaft 3, a pivot bearing, not shown, may be provided. The electric drives 4 are expediently stored in foundations. The drive components formed in this way advantageously form a preassembled module.

Die Spannungsversorgung erfolgt über einen Gleichspannungszwischenkreis 7.
Eine im Gleichspannungszwischenkreis 7 zur Verfügung gestellte Gleichspannung wird in den Wechselrichtern 6 in eine Wechselspannung mit einer für die elektrischen Antriebe 4 geeigneten Frequenz umgesetzt.The voltage supply takes place via a DC voltage intermediate circuit 7.
A DC voltage provided in the DC intermediate circuit 7 is converted in the inverters 6 into an AC voltage with a frequency suitable for the electric drives 4.

Die einzelnen elektrischen Antriebe 4 können über Schalter 8 einzeln durch An- oder Abkoppeln vom Gleichspannungszwischenkreis 7 aktiviert oder deaktiviert werden.The individual electric drives 4 can be activated or deactivated individually via switch 8 by coupling or uncoupling from the DC intermediate circuit 7.

Zur Generierung der Zwischenspannung im Gleichspannungszwischenkreis 7 sind vier Generatoren 9 vorgesehen. Generell kann auch eine andere Anzahl von mehreren Generatoren 9 vorgesehen sein, wobei diese generell identisch oder unterschiedlich ausgebildet sein können. Im vorliegenden Fall ist ein Generator 9 mit einer kleinen Leistung vorgesehen. Die drei anderen Generatoren 9 weisen dieselbe Leistung auf, wobei diese größer ist als die Leistung des ersten Generators 9. Die einzelnen Generatoren 9 bilden eine redundante Energieversorgungseinheit. Die Generatoren 9 bestehen jeweils aus einem Dieselmotor und einem elektrischen Generator. Jedem Generator 9 ist ein Wechselrichter 10 nachgeordnet. Mit dem Wechselrichter 10 werden in dem Generator 9 generierte Wechselspannungen in eine Gleichspannung transformiert und in den Gleichspannungszwischenkreis 7 eingespeist. Die Generatoren 9 sind jeweils über einen Schalter 11 dem Gleichspannungszwischenkreis 7 selektiv zuschaltbar.To generate the intermediate voltage in the DC intermediate circuit 7 four generators 9 are provided. In general, a different number of multiple generators 9 may be provided, which may be generally identical or different. In the present case, a generator 9 is provided with a small power. The three other generators 9 have the same power, which is greater than the power of the first generator 9. The individual generators 9 form a redundant power supply unit. The generators 9 each consist of a diesel engine and an electric generator. Each generator 9 is an inverter 10 downstream. With the inverter 10 AC voltages generated in the generator 9 are transformed into a DC voltage and fed into the DC voltage intermediate circuit 7. The generators 9 are each selectively switchable via a switch 11 to the DC voltage intermediate circuit 7.

Figur 2 zeigt ein Blockschaltbild des Antriebssystems 1 gemäß Figur 1. In Figur 2 ist neben der Komponente des Antriebssystems 1 gemäß Figur 1 eine Steuereinheit 12 dargestellt, mittels derer die Funktionen der Komponenten des Antriebssystems 1 kontrolliert beziehungsweise gesteuert werden. Die Steuereinheit 12 ist von einer Anordnung von SPS-Steuerungen gebildet. FIG. 2 shows a block diagram of the drive system 1 according to FIG. 1 , In FIG. 2 is in addition to the component of the drive system 1 according to FIG. 1 a control unit 12 is shown, by means of which the functions of the components of the drive system 1 are controlled or controlled. The control unit 12 is formed by an arrangement of PLC controls.

Die Steuereinheit 12 ist über Zuleitungen 13 an die Schalter 8 angeschlossen. Damit können über die Steuereinheit 12 die Schalter 8 so betätigt werden, dass die an diese angeschlossenen elektrischen Antriebe 4 an den Gleichspannungszwischenkreis 7 angeschaltet oder von diesem abgeschaltet werden, wodurch die elektrischen Antriebe 4 aktiviert oder deaktiviert werden.The control unit 12 is connected via leads 13 to the switch 8. In this way, the switches 8 can be actuated via the control unit 12 in such a way that the electrical drives 4 connected to them are connected to the DC voltage intermediate circuit 7 or switched off thereby, whereby the electric drives 4 are activated or deactivated.

Die Steuereinheit 12 ist weiterhin über Zuleitungen 14 an die Schalter 11 angeschlossen. Damit können über die Steuereinheit 12 die Schalter 11 so betätigt werden, dass die an diese angeschlossenen Generatoren 9 an den Gleichspannungszwischenkreis 7 angeschaltet oder von diesem abgeschaltet werden, wodurch die Generatoren 9 aktiviert oder deaktiviert werden.The control unit 12 is further connected via leads 14 to the switch 11. In this way, the switches 11 can be actuated via the control unit 12 in such a way that the generators 9 connected to them are connected to the DC voltage intermediate circuit 7 or switched off by the latter, as a result of which the generators 9 are activated or deactivated.

Auch die übrigen elektrischen Komponenten des Antriebssystems 1, insbesondere die Wechselrichter 6, 10, sind über nicht dargestellte Leitungen an die Steuereinheit 12 angeschlossen. Schließlich ist an die Steuereinheit 12 eine von einer Person bedienbare Bedieneinheit, insbesondere ein sogenannter Telegraph 15, angeschlossen. Mit dieser können von der Brücke des Schiffs aus Steuermanöver durchgeführt werden.The other electrical components of the drive system 1, in particular the inverters 6, 10, are connected to the control unit 12 via lines which are not shown. Finally, to the control unit 12 is operated by a person operating unit, in particular a so-called telegraph 15, connected. This can be done from the bridge of the ship from control maneuvers.

Die Generatoren 9 und/oder die elektrischen Antriebe 4 sowie die diesem zugeordneten Wechselrichter 6, 10 und Schalter 8 können vorteilhaft durch nicht gesondert dargestellte Schaltmittel, insbesondere sogenannte Schienentrenner getrennt werden und bilden somit voneinander getrennte Teilsysteme.The generators 9 and / or the electric drives 4 and the inverters 6, 10 and switches 8 associated therewith can advantageously be separated by switching means not shown separately, in particular so-called rail separators, and thus form separate subsystems.

Das als Binnenschiff ausgebildete Schiff wird im vorliegenden Fall in vier unterschiedlichen Modes betrieben. Der erste Mode bildet die sogenannte Bergfahrt des Schiffs bei voller Belastung. In diesem Fall beträgt der Leistungsbedarf etwa 80 % der von den Generatoren 9 bereitstellbaren Leistung. In diesem Mode werden mittels der Steuereinheit 12 die drei Generatoren 9 mit hoher Leistung aktiviert, während der Generator 9 mit kleiner Leistung deaktiviert ist.The trained as barge ship is operated in the present case in four different modes. The first fashion forms the so-called mountain ride of the ship at full load. In this case, the power requirement is about 80% of the power that can be provided by the generators 9. In this mode, the three generators 9 are activated by means of the control unit 12 with high power, while the generator 9 is deactivated with low power.

Bei dem zweiten und dritten Mode (Talfahrt mit oder ohne Belastung) beträgt der Leistungsbedarf etwa 50 % beziehungsweise 35 % der maximal verfügbaren Leistung. Um diese Leistungen zur Verfügung zu stellen, werden zweckmäßig zwei der Generatoren 9 mit der größeren Leistung aktiviert, während die restlichen Generatoren 9 deaktiviert sind.In the second and third modes (deceleration with or without load) the power requirement is about 50% and 35% respectively of the maximum available power. In order to provide these services, two of the generators 9 with the larger power are expediently activated while the remaining generators 9 are deactivated.

Schließlich wird bei dem vierten Mode (Kanalfahrt), bei dem nur etwa 10 % der maximalen Leistung benötigt wird, nur der Generator 9 mit der kleineren Leistung aktiviert, während die übrigen Generatoren 9 deaktiviert sind.Finally, in the fourth mode (channel travel), where only about 10% of the maximum power is needed, only the smaller power generator 9 is activated while the other generators 9 are deactivated.

Durch die selektive Zuschaltung einzelner Generatoren 9 in den einzelnen Modes kann die Generatorleistung an die aktuell benötigte Leistung angepasst werden. Durch diese Leistungsanpassung können die jeweils aktivierten Generatoren 9 in ihren optimalen Arbeitspunkten betrieben werden. Durch die Ausnutzung der optimalen Arbeitspunkteinstellung der Generatoren 9 ergibt sich eine signifikante Energieeinsparung gegenüber Schiffen, deren Generatoren 9 nicht im optimalen Arbeitspunkt betrieben werden können.Through the selective connection of individual generators 9 in the individual modes, the generator power can be adapted to the currently required power. Through this power adjustment, the respective activated generators 9 can be operated at their optimum operating points. By exploiting the optimal operating point setting of the generators 9 results in a significant energy savings compared to ships whose generators 9 can not be operated at the optimum operating point.

Bei sämtlichen Modes des Schiffes ist zumindest ein Generator 9 deaktiviert. Vorteilhaft ist auch immer ein elektrischer Antrieb 4 pro Antriebswelle 3 deaktiviert.In all modes of the ship at least one generator 9 is deactivated. Advantageously, an electric drive 4 per drive shaft 3 is always deactivated.

Diese im regulären Betrieb des Schiffes nicht genutzten Einheiten werden für eine mittels der Steuereinheit 12 durchgeführten Überwachung zur Ausfallsicherung des Antriebssystems 1 genutzt. Bei dieser Überwachung überprüft die Steuereinheit 12 fortlaufend die Funktion der angeschlossenen Einheiten, insbesondere aller elektrischen Antriebskomponenten. Wird ein Fehler oder ein Ausfall wenigstens einer dieser Komponenten registriert, wird ein Alarmsignal generiert. Vorteilhaft wird bei Auftreten des Alarmsignals das Antriebssystem 1 durch die Steuereinheit 12 selbsttätig in einen sicheren Zustand überführt.These unused in the regular operation of the ship units are used for a performed by the control unit 12 monitoring failover of the drive system 1. In this monitoring, the control unit 12 continuously checks the function of the connected units, in particular all electric drive components. If an error or a failure of at least one of these components is registered, an alarm signal is generated. Advantageously, when the alarm signal occurs, the drive system 1 is automatically transferred by the control unit 12 into a safe state.

Ist beispielsweise auf einer Antriebswelle 3 ein elektrischer Antrieb 4 ausgefallen, wird dies von der Steuereinheit 12 detektiert, worauf durch Betätigen der Schalter 8 der defekte elektrische Antrieb 4 vom Gleichspannungszwischenkreis 7 abgekoppelt und ein intakter elektrischer Antrieb 4 auf dieser Antriebswelle 3 dadurch aktiviert wird, dass der zugeordnete Schalter 8 geschlossen ist. Das Antriebssystem 1 ist damit wieder voll funktionsfähig.If, for example, an electric drive 4 has failed on a drive shaft 3, this is detected by the control unit 12, whereupon the defective electric drive 4 is decoupled from the DC voltage intermediate circuit 7 by actuation of the switches 8 and an intact electric drive 4 is activated on this drive shaft 3 by the associated switch 8 is closed. The drive system 1 is thus fully functional again.

Ist einer der im Betrieb befindlichen Generatoren 9 ausgefallen, so wird auch dies von der Steuereinheit 12 detektiert und durch Betätigen der Schalter 11 wird der defekte Generator 9 vom Gleichspannungszwischenkreis 7 abgekoppelt und ein intakter, bisher nicht aktivierter Generator 9 an den Gleichspannungszwischenkreis 7 angekoppelt.If one of the operating generators 9 has failed, this is also detected by the control unit 12 and by operating the switch 11, the defective generator 9 is decoupled from the DC intermediate circuit 7 and an intact, previously not activated generator 9 is coupled to the DC voltage intermediate circuit 7.

Hierbei ist vorteilhaft, dass in allen vier Betriebsmodes des Binnenschiffes immer zumindest ein Generator 9 nicht aktiviert ist. Damit kann, unabhängig davon welcher Typ von Generator 9 in welchem Betriebsmode ausfällt, der bislang deaktivierte Generator 9 den jeweils ausgefallenen Generator 9 ersetzen, so dass das Antriebssystem 1 wieder voll funktionsfähig ist.It is advantageous that in all four operating modes of the inland vessel always at least one generator 9 is not activated. Thus, regardless of which type of generator 9 fails in which operating mode, the previously deactivated generator 9 replace the respective failed generator 9, so that the drive system 1 is fully functional again.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

(1)(1)
Antriebssystemdrive system
(2)(2)
Propellerpropeller
(2a)(2a)
Propellerblattpropeller blade
(3)(3)
Antriebswelledrive shaft
(4)(4)
Elektrischer AntriebElectric drive
(5)(5)
Koppelungcoupling
(6)(6)
Wechselrichterinverter
(7)(7)
GleichspannungszwischenkreisDc link
(8)(8th)
Schalterswitch
(9)(9)
Generatorgenerator
(10)(10)
Wechselrichterinverter
(11)(11)
Schalterswitch
(12)(12)
Steuereinheitcontrol unit
(13)(13)
Zuleitungenleads
(14)(14)
Zuleitungenleads
(15)(15)
Telegraphtelegraph

Claims (15)

Antriebssystem für ein Schiff mit wenigstens einem an einer Antriebswelle angeordneten Propeller, dadurch gekennzeichnet, dass auf der wenigstens einen Antriebswelle (3) eine redundante Anordnung von elektrischen Antrieben (4) vorgesehen ist, welchen eine redundante Anordnung von Generatoren (9) zur Spannungsversorgung zugeordnet ist, wobei die elektrischen Antriebe (4) und die Generatoren (9) einzeln steuerbar sind.Drive system for a ship with at least one arranged on a drive shaft propeller, characterized in that on the at least one drive shaft (3) a redundant arrangement of electric drives (4) is provided, which is associated with a redundant arrangement of generators (9) for power supply , wherein the electric drives (4) and the generators (9) are individually controllable. Antriebssystem nach Anspruch 1, dadurch gekennzeichnet, dass dieses mehrere Propeller (2) aufweist, wobei jeder einem Propeller (2) zugeordneten Antriebswelle (3) eine redundante Anordnung von elektrischen Antrieben (4) zugeordnet ist.Drive system according to claim 1, characterized in that it comprises a plurality of propellers (2), wherein each of a propeller (2) associated drive shaft (3) is associated with a redundant arrangement of electric drives (4). Antriebssystem nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass die elektrischen Antriebe (4) und die Generatoren (9) selektiv aktivierbar sind.Drive system according to one of claims 1 or 2, characterized in that the electric drives (4) and the generators (9) are selectively activated. Antriebssystem nach Anspruch 3, dadurch gekennzeichnet, dass die elektrischen Antriebe (4) und die Generatoren (9) über Schaltmittel aktivierbar sind.Drive system according to claim 3, characterized in that the electric drives (4) and the generators (9) can be activated via switching means. Antriebssystem nach einem der Ansprüche 3 oder 4, dadurch gekennzeichnet, dass die elektrischen Antriebe (4) und Generatoren (9) mittels wenigstens einer Steuereinheit (12) steuerbar sind.Drive system according to one of claims 3 or 4, characterized in that the electric drives (4) and generators (9) by means of at least one control unit (12) are controllable. Antriebssystem nach Anspruch 5, dadurch gekennzeichnet, dass mittels der Steuereinheit (12) eine Ausfall- und Fehlerkontrolle durchführbar ist.Drive system according to claim 5, characterized in that by means of the control unit (12) a failure and error control is feasible. Antriebssystem nach einem der Ansprüche 5 oder 6, dadurch gekennzeichnet, dass durch eine selektive Aktivierung der Generatoren (9) mittels der Steuereinheit (12) die in diesen generierte Leistung an die aktuell benötigte Leistung des Schiffs anpassbar ist.Drive system according to one of claims 5 or 6, characterized in that by a selective activation of the generators (9) by means of the control unit (12), the power generated in these is adapted to the currently required power of the ship. Antriebssystem nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die einzelnen elektrischen Antriebe (4) und/oder Generatoren (9) voneinander separierte, unabhängige Teilsysteme bilden.Drive system according to one of claims 1 to 7, characterized in that the individual electric drives (4) and / or generators (9) separate from each other, form independent subsystems. Antriebssystem nach Anspruch 8, dadurch gekennzeichnet, dass die Teilsysteme durch elektrische Schaltmittel separierbar sind.Drive system according to claim 8, characterized in that the subsystems are separable by electrical switching means. Antriebssystem nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass die elektrischen Antriebe (4) auf einer Antriebswelle (3) identisch ausgebildet sind.Drive system according to one of claims 1 to 9, characterized in that the electric drives (4) on a drive shaft (3) are identical. Antriebssystem nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass auf einer Antriebswelle (3) unterschiedlich ausgebildete elektrische Antriebe (4) vorgesehen sind.Drive system according to one of claims 1 to 9, characterized in that on a drive shaft (3) differently designed electrical drives (4) are provided. Antriebssystem nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, dass die Generatoren (9) identisch ausgebildet sind.Drive system according to one of claims 1 to 11, characterized in that the generators (9) are identical. Antriebssystem nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, dass die Generatoren (9) unterschiedlich ausgebildet sind.Drive system according to one of claims 1 to 11, characterized in that the generators (9) are formed differently. Antriebssystem nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, dass mittels der Generatoren (9) in einem Gleichspannungszwischenkreis (7) eine Zwischenspannung zur Spannungsversorgung der elektrischen Antriebe (4) generiert wird.Drive system according to one of claims 1 to 13, characterized in that by means of the generators (9) in a DC voltage intermediate circuit (7), an intermediate voltage for the power supply of the electric drives (4) is generated. Antriebssystem nach Anspruch 14, dadurch gekennzeichnet, dass die Generatoren (9) und elektrischen Antriebe (4) jeweils über Schaltmittel bildende Schalter (8) selektiv an den Gleichspannungszwischenkreis (7) anschaltbar oder von diesem abschaltbar sind.Drive system according to claim 14, characterized in that the generators (9) and electrical drives (4) each switchable means (8) selectively to the DC voltage intermediate circuit (7) can be connected or disconnected from this.
EP20090002100 2009-02-16 2009-02-16 Drive system for a ship Not-in-force EP2218637B1 (en)

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ES09002100T ES2384816T3 (en) 2009-02-16 2009-02-16 Boat propulsion system
EP20090002100 EP2218637B1 (en) 2009-02-16 2009-02-16 Drive system for a ship
DK09002100T DK2218637T3 (en) 2009-02-16 2009-02-16 Propulsion system for a ship
PL09002100T PL2218637T3 (en) 2009-02-16 2009-02-16 Drive system for a ship
AT09002100T ATE553994T1 (en) 2009-02-16 2009-02-16 PROPULSION SYSTEM FOR A SHIP
HRP20120593AT HRP20120593T1 (en) 2009-02-16 2012-07-17 Drive system for a ship

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CN103108801B (en) * 2010-09-16 2016-08-03 乌本产权有限公司 There is the ship of opening for removing energy supply system
JP2018100072A (en) * 2016-12-19 2018-06-28 コリア インスティチュート オブ オーシャン サイエンス アンド テクノロジー Hull fluctuation pressure reduction method by adjustment of propeller revolution angle of two-screw vessel

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ATE553994T1 (en) 2012-05-15
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DK2218637T3 (en) 2012-07-16
ES2384816T3 (en) 2012-07-12
HRP20120593T1 (en) 2012-08-31

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