WO2023224485A1 - Système d'énergie de vaisseau comprenant des groupes électrogènes et procédé associé - Google Patents

Système d'énergie de vaisseau comprenant des groupes électrogènes et procédé associé Download PDF

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Publication number
WO2023224485A1
WO2023224485A1 PCT/NL2023/050282 NL2023050282W WO2023224485A1 WO 2023224485 A1 WO2023224485 A1 WO 2023224485A1 NL 2023050282 W NL2023050282 W NL 2023050282W WO 2023224485 A1 WO2023224485 A1 WO 2023224485A1
Authority
WO
WIPO (PCT)
Prior art keywords
power
genset
busbar
mode
gensets
Prior art date
Application number
PCT/NL2023/050282
Other languages
English (en)
Inventor
Sjoerd Gerard Vrijburg
VAN Dennis WIJLEN
Original Assignee
Danvest Netherlands B.V.
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 Danvest Netherlands B.V. filed Critical Danvest Netherlands B.V.
Publication of WO2023224485A1 publication Critical patent/WO2023224485A1/fr

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Classifications

    • 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
    • H02J3/001—Methods to deal with contingencies, e.g. abnormalities, faults or failures
    • 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
    • H02J3/40—Synchronising a generator for connection to a network or to another 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
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H02J9/08—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems requiring starting of a prime-mover
    • 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
    • H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
    • H02J2310/40—The network being an on-board power network, i.e. within a vehicle
    • H02J2310/42—The network being an on-board power network, i.e. within a vehicle for ships or vessels

Definitions

  • the present invention relates to a system for ful- filling a power requirement in case of a sudden di f feren- tial power requirement state , such as in the event of an unexpected traf fic situation, power failure , defect and/or blackout , by a supply of electrical energy to a vessel or ship , preferably an inland vessel , further preferably an inland cargo ship, with an electric propulsion system .
  • a vessel or ship preferably an inland vessel , further preferably an inland cargo ship, with an electric propulsion system .
  • Fur- thermore the present invention relates to a related meth- od .
  • Such electric propulsion system comprises several generators and a propulsion engine or a pair of propulsion engines .
  • sideway propulsion systems are provided as well .
  • Such systems provide a large number of known advantages such as flexibility of electrical sys- terns in the ship .
  • the present inventor came to the reali zation that this is inef- ficient as ships do not require the minimum power provided by such 2 engines at all times , such as to prevent colli- sions or to be able to react with steering of the ship in all kinds of situations .
  • the requirements of having to engines running at all times causes the use of fuels that is wasteful . In such situations , it would be inef ficient to provide batteries taking up the whole excess power of such fuels .
  • the present inventor defined a goal of the present invention being that such fuel is to be saved while maintaining a safety level .
  • the present invention relates to a system for ful filling a pow- er requirement in case of a sudden di f ferential power re- quirement state , such as in the event of an unexpected traf fic situation, power failure , defect and/or blackout , by a supply of electrical energy to a vessel or ship , pref- erably an inland vessel , further preferably an inland cargo ship, with an electric propulsion system, the system com- prising :
  • busbar monitoring device for monitor- ing power parameters of the busbar
  • At least one genset controller for controlling op- eration of the at least two gensets , wherein :
  • all of the at least two gensets are configured to function in a power generating mode for the generation of the electrical energy
  • At least one of the gensets is configured for functioning in a standby operation mode , such as during op- eration of the ship wherein the power station or engine may be switched of f or operate in a low-power, such as low load mode of operation, and
  • At least one of the at least one the genset con- troller is configured to receive an input signal signi fying the sudden di f ferential energy requirement state , to make a determination to trans fer a respective genset from the standby operation mode to the power generating mode and to control respective gensets functioning in the standby oper- ation mode to transition operation to ful fill the power re- quirement , and wherein :
  • the generator of the genset is configured to operate in a state of synchroni zation with the busbar, preferably pow- ered by power from the busbar .
  • the respective genset may be trans ferred to its power generating mode in a very short timeframe based on receiving the input signal .
  • the input signal may be based on a low frequency and/or voltage of the busbar as a busbar parameter .
  • a signal from the genset functioning in power gener- ating mode indicating problems , imminent failure or upcom- ing failure may be provided to the genset controller in order to trans fer the genset in the standby operating mode to the power generating mode even before busbar parameters are af fected by such failure of the other genset .
  • An advantage of such operating of the genset in a state of synchroni zation with the busbar is that the gener- ator is not required to be started up from for instance a standstill situation .
  • Starting up a generator from a stand- still situation costs a lot of energy and it takes time to have a generator run at optimal operating parameters .
  • the generator when the generator is running in synchroni zation with the busbar, such generator provides reactive power advantages to the busbar and thereto coupled generators and consumers .
  • the system provides timely power by the at least one genset configured for functioning in the standby operation mode for timely maneuverability of the vessel based on power , preferably ful filling a classi fication requirement of timely maneuver- ability of the vessel based on power provided by these gen- sets when trans ferred from the standby operation mode to the power generating mode .
  • the vessel is maneuverable on the basis of this provided power in such a fast manner, such as in time frames indicated below, that the vessel is always maneuver- able in timely manner to prevent a calamity, such as an ac- cident or collision, being taken by the current or running into shallow water .
  • it is preferred according to the present invention to ful fill requirements of at least one classi fication for a vessel to always have suf ficient power available within predetermined time frames .
  • the sud- den di f ferential power requirement state is defined as a state wherein a di f ference between a currently supplied electrical power and a required power supply is larger than the amount of power that can be provided by gensets that are currently in the power generating mode .
  • the at least one genset configured to function in standby operation mode and run- ning in standby operation mode is able to quickly add power capacity to other running gensets .
  • the sudden di f ferential power requirement state is defined as a state wherein bus- bar parameters are outside predefined operational or opera- tionally acceptable ranges .
  • bus- bar parameters are outside predefined operational or opera- tionally acceptable ranges .
  • the sudden di f feren- tial power requirement state is defined as a blackout situ- ation of at least one of the at least one busbar .
  • a black- out situation may happen when a single running genset fai ls or when power demand suddenly exceeds the available genset power .
  • Other situations in which a blackout situation may happen can be caused by a short-circuit or failing of a power consumer connected to any of the at least one busbar . When that happens , it is vitally important that all af fect- ed systems are disconnected from the respective busbar and the system is powered up as soon as possible .
  • a genset configured to run at standby operating mode is pro- vided according to the embodiment to provide the fastest possible restart of the electrical system of the ship as a whole .
  • essen- tial systems such as navigational systems
  • optional systems are only connected when safety is achieved first .
  • the sudden di f feren- tial power requirement state is defined as a power require- ment input based on a sudden propulsion requirement re- ceived from a navigation system or a propulsion system of the ship . It may happen that an unexpected change in speed and/or course of the vessel has to be provided at a moments notice . I f this happens , the power demand may be rising very steeply which may not be providable by a for instance single running genset . When this happens , a system accord- ing to the embodiment provides that a genset configured for functioning in a standby operating mode may be switched to its power generating mode very quickly to provide naviga- tional reactiveness within a speci fied acceptable time .
  • An example thereof is that a ship that is sailing downstream at a low propulsion engine power may be reversed to maximum engine power, even when it was running on one relatively small genset while a relatively large genset configured for functioning in a standby operating mode actually was in the standby operating mode according to the present invention or an embodiment thereof to provide switching to power gen- erating mode in an acceptable small timeframe .
  • the ful- filling of the power requirement is time-critical within a time frame of the 0-20 seconds , preferably 0- 15 seconds , further preferably 0- 10 seconds , further preferably 1 - 8 seconds , further preferably 1 - 6 seconds , further preferably 1-5, 1 -4 , 1 -3 , 1 -2 seconds . It is an advantage of such im- plementation of time critical results , that it may be achieved that a vessel equipped with such an embodiment is certi fiable as a safe system while saving the fuel by al- lowing at least one of the gensets to be configured for standby operating mode .
  • ful- filling of the power requirement is based on a propulsion power requirement , preferably in addition with onboard electrical requirements .
  • Such power requirement is related to the amount of power that is required to have the vessel function with a suitable combination of propulsion power and rudder operations that the ship may be steered and/or navigated safely .
  • ful filling of the power requirement is based on rudder power requirements or rudder reactive power requirements .
  • a further preferred embodiment of the present inven- tion provides a system comprising a data store for storing power requirements in relation to ship control parameters , such as weather conditions , water current conditions , whether power requirements or rudder reactive power re- quirements , power parameters of the at least two gensets , power parameters of the at least one genset configured for functioning in standby operating mode .
  • ship control parameters such as weather conditions , water current conditions , whether power requirements or rudder reactive power re- quirements
  • power parameters of the at least two gensets power parameters of the at least one genset configured for functioning in standby operating mode .
  • a relatively light capacity genset may be switched of f in favor of a relatively high capacity genset , of course preferably both with the configuration to function in standby power mode .
  • the system comprises at least one breaker , preferably at least one breaker per genset drive motor and/or further busbar consumer .
  • all systems may be switched of f from the busbar during powering on of a genset from a sudden di f fer- ential power requirement state . This allows for controlled powering on of the whole ships system or keeping certain subsystems of the ship system disconnected from the busbar by not unbreaking or closing the breakers .
  • the engine in the standby operating mode , may be operated below 30% of nominal capacity, preferably below 20% of nominal capacity, further prefera- bly below 10% of nominal capacity, further preferably below 0% of nominal capacity, further preferably below minus 5% of normal capacity further preferably between minus 5% and minus 10% of nominal capacity .
  • This allows for favorable fuel savings during standby operating mode , while keeping the engine in motion for faster start up then when the en- gine was stopped . It is furthermore provided that the en- gine is dragged along by the generator based on for in- stance busbar electrical power .
  • the sys- tem comprises a clutch between the power station or engine and the generator, the genset being configured to allow the coupling by the clutch in the standby operating mode .
  • the engine may be fully stopped for motion while the gener- ator is kept in rotation to be synchroni zed with the bus- bar .
  • the system com- prises a flywheel wherein the flywheel is preferably cou- pled to the generator, preferably further comprising decou- pling means for decoupling of the flywheel from the genera- tor . It is an advantage of such a flywheel that even with- out busbar power the generator may be kept in rotation for a predetermined amount of time based on energy stored in the flywheel . For instance , in case of a full blackout of the electrical systems of the ship, a startup of the genset that was in standby operating mode may be performed faster with the application of this flywheel .
  • the sys- tem comprises a heater assembly for heating of the engine while being switched of f or in low load mode .
  • the engine is easier to start up and will endure less wear and tear during standby operating mode , and/or during times of low fuel supply while being kept in rotation by the gen- erator as indicated in the above .
  • the sys- tem comprises venting means for venting of engine cylinders when the engine is operating at low rotations per minutes .
  • An advantage thereof is that it requires less power to run the engine while little fuel is provided to the engine .
  • the system comprises a pressuri zing assembly for pressuri zing engine cylinders to a preferred state and/or to prevent low-pressure in the cylinders .
  • the sys- tem comprises a system controller to adj ust power take-up to a power level providable by currently available genset capacity .
  • a genset i started up from standby oper- ation mode to power generating mode while not being able to sustain full power demand of the full ship system, only systems of the ship that are essential and ful fill the pow- er requirements of the available power from such genset will be started up .
  • a further aspect of the present invention relates to a method for ful filling a power requirement in case of a sudden di f ferential power requirement state , such as in the event of an unexpected traf fic situation, power failure , defect and/or blackout , by a supply of electrical energy to a vessel or ship , preferably an inland vessel , further preferably an inland cargo ship, with an electric propul- sion system, the system comprising :
  • busbar monitoring device for monitor- ing power parameters of the busbar
  • At least one genset controller for controlling op- eration of the at least one genset , wherein :
  • all of the at least two gensets are configured to function in a power generating mode for the generation of the electrical energy
  • At least one of the gensets is configured for functioning in a standby operation mode , such as during op- eration of the ship wherein the power station or engine may be switched of f or operate in a low-power, such as low load mode of operation, and
  • At least one of the at least one the genset con- troller is configured to receive an input signal signi fying the sudden di f ferential energy requirement state , to make a determination to trans fer a respective genset from the standby operation mode to the power generating mode and to control respective gensets functioning in the standby oper- ation mode to transition operation to ful fill the power re- quirement , the method comprising steps of :
  • Fig . 1 provides a schematic representation of a first preferred embodiment according to the present invention .
  • Fig . 2 provides a schematic representation of a fur- ther preferred embodiment according to the present inven- tion .
  • Fig . 3 provides a further schematic representation of a further preferred embodiment according to the present in- vention .
  • Fig . 4 provides a schematic representation of ships embodied with a preferred embodiment according to the pre- sent invention .
  • Fig . 5 provides further embodiments according to the present invention .
  • Fig . 6 provides a further preferred embodiment ac- cording to the present invention .
  • a first preferred embodiment ( Fig . 1 ) relates to a power system, such as usable on a vessel or ship . It comprises two gensets 2 that are controlled by a genset controller 17 that is embodied as a process on a control computer 7 .
  • the genset controller 7 may be embodied as a sep- arate control computer .
  • the gensets each comprise a genera- tor 8 that is provided with motion energy by a motor 6 .
  • the generator is provided with an optional flywheel 15 to store motion energy during operation of the genset .
  • the flywheel 15 is optional as the system according to the present in- vention or certain preferred embodiments , is capable to function without a flywheel . Furthermore , the genset is provided with a clutch or clutching assembly 12 for cou- pling and decoupling the generator 8 from the engine 6 . Such decoupling is provided in a preferable standby opera- tion mode .
  • the engine 6 is switched of f in order to prevent use of fuel .
  • the motor is heated from an external heating system in order to be maintained at a temperature at or somewhat below operating temperature of the engine or a cooling system thereof . This may provide a faster start time of the engine when the en- gine needs to be started to trans ferred the system from the standby operating mode to the power generating mode . It is preferred that the engine is maintained at any temperature between ambient temperature and operating temperature in order to achieve an improvement over maintaining the engine at ambient temperature .
  • the engine 6 i s running at a low load such as below 30% of nominal capacity in order to save fuel .
  • a low load such as below 30% of nominal capacity
  • the motor may be coupled with the generator in order to be driven or forced into motion by the generator .
  • the generator is driving the engine
  • less fuel is required to run the en- gine .
  • the en- gine may be heated from an external heat source to raise temperature above the temperature achieved by the low fuel input .
  • both generator sets are configured to be able to run in both a power generating mode and a standby operating mode .
  • a standby operating mode also an embodiment in which only one of the two generator sets is configured to also run in the standby op- erating mode is considered .
  • both gensets may be used for continuous propulsion with the other one on standby .
  • the thus configured generator set is to be the one that may be on standby while the other generator set that can only run in power generating mode is to be continuously operated for propulsion of the vessel .
  • a genset is configured for functioning in a standby operating mode , when the genset controller is able to con- trol the use of fuel below 30% of nominal capacity, to con- trol a clutch to decouple the generator 8 from the engine 6, to control the generator to operate in a state of syn- chroni zation with the busbar and/or to control that the generator is provided with power, preferably from the bus- bar, to operate in the state of synchroni zation with the busbar .
  • the power for operating of the generator in syn- chroni zation with the busbar may also be provided in an al- ternative manner , such as by means of an auxiliary engine with drive means coupled to the generator .
  • a busbar 3 is provided between the generators and consumers , in this embodiment indicated as propulsion en- gines 16 , 16 ' , 16" such as of a vessel or ship .
  • the busbar provides energy to all elec- tric systems of a vessel .
  • Several busbars may be provided throughout the ship separated by power converters . In that way, distinct systems of the ship to be provided with elec- tric energy with distinct power parameters or respective busbar parameters .
  • Operation of the propulsion engines 16 may be performed by a propulsion controller that is a dis- tinct control computer or such as in the embodiment of Fig . 1 embodied as a process performed by and/or controlled by the computer 7 .
  • a variant is shown in which only the gen- set that is configured for functioning in a standby operat- ing mode is shown while another genset that may only oper- ate in power generating mode is omitted for simplicity .
  • the busbar 3 connects the genset or gensets with the propulsion engines 16 , 16 ' .
  • the genset has a sepa- rate control computer 14 whereas the propulsion engines al- so have a dedicated controller 14 ' respectively 14" .
  • the central control computer 7 is provided to control overall operation of the ship thereby controlling the respective controllers 14 , 14 ' , 14" .
  • the system also comprises a bus- bar monitoring device 28 that monitors power parameters of the busbar and provides information of the power parameters to any computer 7 or controller 14 on the ship .
  • the infor- mation monitoring may be performed continuously or only in case of a deviation from desired parameter values such as beyond a predetermined threshold of any parameter . In case the voltage drops below a certain value , this may mean that additional power is to be supplied to the busbar according to the present invention by switching a genset that is con- figured for functioning in a standby operation mode and that is operating in such standby operating mode , to a pow- er generating mode .
  • Another example of a busbar parameter value is the frequency of the AC current on the busbar . In case of frequency drops below a predetermined threshold, such as below 47 Hz when 50 Hz is the operating frequency, a standby genset may be started up .
  • systems or subsystems such as the generator set , a heater thereof , a propulsion engine or any other electric system of the ship is connected to the busbar or at least one busbar by means of a breaker 22 , 24 , 26 or 26 ' .
  • the advantage or purpose thereof is that such devices or subsystems of the ship may be protected in case of a set electrical emergency and/or such that such devices of subsystems may be kept switched of f from the busbar in case of available power to the busbar is too low or limited to provide all subsystems with energy .
  • the genset that is to operate as a genset configured for functioning in a standby mode is to be able to provide suf ficient power for the propulsion engines and for operat- ing the rudder in order to steer or navigate the ship . This is also relevant for ful filling requirements of a classi fi- cation of a ship or vessel .
  • a genset that is to operate as a genset configured for func- tioning in a standby mode is to be able to provide suf fi- cient power for a power demand of subsystems of the vessel that are deemed important or that are currently used for and operating function of the vessel .
  • An example thereof is a vessel with a cooling system is required to have power provided to the cooling system .
  • a further example thereof is a vessel with a dredging system requires the dredging system to function even when unexpected high loads are en- countered during a dredging operation, as exempli fied in the above .
  • An example of states and steps to be performed in or by a system according to the present invention or in embod- iments thereof is as follows .
  • a part of the available generator sets is providing power to systems of the ship .
  • An example is when a ship is sailing downstream a river, a low amount of pro- pulsion power is required to navigate the ship .
  • the cur- rently running generator set has a failure
  • the engine of that generator set may stop and power to the busbar stops .
  • the busbar is to be started up again .
  • the genset that is configured for functioning in a standby operation mode and that is functioning in the standby operation mode is provided with a signal to switch to power generating mode .
  • the generator 8 of the genset is already rotating at suitable busbar parameters , such as frequency .
  • suitable busbar parameters such as frequency .
  • the generator does not have to be started up from a standstill provide power to the bus- bar , but only the engine needs to be started up to contin- ued the motion of the generator .
  • Starting up of the engine requires little time , especially when the engine is kept in operating condition, such as having a suitable temperature , or already being in motion running at low load with low fuel , such as being drawn by the generator or kept into mo- tion by a secondary engine .
  • the engine 6 of the genset is started from the standby condition up and coupled with the generator and the generator is start- ing to provide power to the busbar for the purpose of which the breaker is closed to provide the power to the busbar .
  • the operation of the engine 6 and the generator 8 are closely monitored by the controller 14 in order to provide power to the busbar with right parameters relating to frequency and voltage .
  • a ship is shown with variations of embodi- ments according to the present invention .
  • the embodiment is provided with a central control computer 7 and a front gen- erator set to and a read generator set to similar to the generator sets of Fig . 1 .
  • a main propeller is provided for propulsion of the ship .
  • a steering propeller is provided for steer- ing the ship .
  • a steering propeller are provided at the front of the ship.
  • a ship may be provided with propulsion and steering by the combination of two gensets , of which one genset during regular sailing is not required to have fuel consumption the saving energy for the ship to operate .
  • Fig . 5 variations with two or four gensets 2 are provided on a ship with two drive propellers and four steering propellers .
  • Fig . 6 a relatively large ship is shown with 7 gensets , two drive propellers and four steer- ing propellers .
  • one or more of the gensets may be operated continuously in the power generating mode and one or more genset that are configured for functioning in a standby operating mode may be operated in a standby operating mode depending on emergency power requirements and/or expected changes in power requirements when operat- ing the vessel .
  • the engine running at low capacity may comprise run- ning on low fuel .
  • the engine running at negative capacity is preferably intended to mean that the engine is pulled by the generator coupled to the engine , preferably wherein the generator is provided with energy from the at least one busbar .
  • di f ferent aspects of di f ferent embodiments are expressly considered disclosed in combination with each other and in all combinations that on the basis of this document , when read by a skilled person of the area of skill , fall within the scope of the inven- tion or are deemed to be read with the disclosure of this document .
  • These preferred embodiments are not limitative for the scope of protection of this document .
  • the rights sought are defined in the appended claims .

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

La présente invention porte sur un système permettant de satisfaire à une demande d'énergie dans le cas d'un état de demande soudaine d'énergie différentielle, tel que dans le cas d'une situation de trafic inattendue, d'une panne de courant, d'un défaut et/ou d'une panne totale, par une alimentation en énergie électrique d'un vaisseau ou d'un navire, de préférence un vaisseau terrestre, de préférence encore un cargo terrestre, avec un système de propulsion électrique, le système comprenant : au moins une barre omnibus pour distribuer de l'énergie électrique entre sa production et la propulsion du navire avec celle-ci; au moins un dispositif de surveillance de barre omnibus pour surveiller des paramètres d'alimentation de la barre omnibus; au moins deux groupes électrogènes pour la production de l'énergie électrique vers ladite barre omnibus, un groupe électrogène comprenant une centrale électrique ou un moteur et un générateur pour produire de l'électricité; au moins un dispositif de commande de groupe électrogène pour commander le fonctionnement dudit groupe électrogène; au moins l'un des groupes électrogènes étant conçu pour fonctionner dans un mode de fonctionnement de veille; et pendant le mode de fonctionnement de veille du groupe électrogène, le générateur du groupe électrogène étant conçu pour fonctionner dans un état de synchronisation avec la barre omnibus, de préférence alimenté en énergie à partir de la barre omnibus.
PCT/NL2023/050282 2022-05-17 2023-05-17 Système d'énergie de vaisseau comprenant des groupes électrogènes et procédé associé WO2023224485A1 (fr)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130271083A1 (en) * 2009-12-04 2013-10-17 Kevin R. Williams Energy storage system for supplying power to loads of a drilling rig
US20160248263A1 (en) * 2015-02-19 2016-08-25 Cummins Power Generation Ip, Inc. Energy storage system
EP2723635B1 (fr) * 2011-06-22 2019-03-27 Wärtsilä Finland Oy Propulsion de navire

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130271083A1 (en) * 2009-12-04 2013-10-17 Kevin R. Williams Energy storage system for supplying power to loads of a drilling rig
EP2723635B1 (fr) * 2011-06-22 2019-03-27 Wärtsilä Finland Oy Propulsion de navire
US20160248263A1 (en) * 2015-02-19 2016-08-25 Cummins Power Generation Ip, Inc. Energy storage system

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