EP2670620A1 - Procede et systeme de gestion de l'energie d'un engin ferroviaire - Google Patents
Procede et systeme de gestion de l'energie d'un engin ferroviaireInfo
- Publication number
- EP2670620A1 EP2670620A1 EP12707828.5A EP12707828A EP2670620A1 EP 2670620 A1 EP2670620 A1 EP 2670620A1 EP 12707828 A EP12707828 A EP 12707828A EP 2670620 A1 EP2670620 A1 EP 2670620A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sources
- frequency domain
- energy
- source
- machine
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/10—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
- B60L50/15—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines with additional electric power supply
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/53—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells in combination with an external power supply, e.g. from overhead contact lines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2200/00—Type of vehicles
- B60L2200/26—Rail vehicles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
Definitions
- the first architecture is based on electric locomotives and the second architecture is based on diesel locomotives.
- energy is distributed by sampling over a catenary through pantographs, transformers (in the case of alternative networks) and converters.
- energy is produced on site by a generator associated with a heat engine.
- Both architectures have a common part consisting of traction motors and auxiliaries.
- railway engines powered by an electric motor had only one source of energy such as a catenary, a third rail, a heat engine, and so on. This source was sized to provide the maximum power needed to ensure the traction of the machine and the
- the present invention aims to improve the situation.
- the invention firstly relates to a method for managing the energy of a railway vehicle comprising a plurality of on-board energy sources and consumers of electrical energy, said method comprising the steps of:
- control of the machine for using, in priority, the source allocated to said frequency domain during operation of the vehicle in this domain.
- the method of the invention makes it possible to optimize the use of on-board energy sources by exploiting the adequacy of each type of source to a particular frequency domain of operation.
- the frequency domain of operation is directly related to the variation of the electric power demand of the vehicle during this operation.
- the power demanded shows large amplitude variations, brief and fast, corresponding to a frequency operating frequency domain located at the high frequencies.
- the power requested by the operation of the machine is more continuous, its amplitude can be significant and not very variable.
- the frequency dominance of operation is, in this case, located on the side of the low frequencies.
- each source of electrical energy having at least one physical limitation comprises the steps of:
- the physical limitations of the sources are chosen from among a maximum power and / or a charge level and / or a minimum operating interruption time between two successive operations of the source.
- the use control step comprises a substep of selecting at least one elementary source from among the elementary sources of the same type. , said selection being made in such a way as to balance the use of the elementary sources.
- the selection takes into account the charge level of the elementary storage means so as to avoid that one of the elementary means completely unloaded while another would be fully loaded.
- the defined frequency domains comprise:
- the first frequency domain close to the continuous, is an image of the average value of the mission of the machine while the second frequency domain corresponds to very variable regimes.
- the source allocated to the first frequency range is chosen from a generator and / or a battery pack and / or a fuel cell.
- the characteristics of these sources require steady-state operation for optimal use in terms of efficiency, consumption, lifetime, emission of pollutants, etc.
- the supercapacitors are able to withstand operating cycles of about a hundred MHz to a few Hz.
- their charging and discharging cycles have a frequency adapted to the second frequency range
- the sources comprising electrical energy storage means
- said method further comprises a step of calculating an autonomy of the storage means.
- This autonomy is equal to the ratio between the electrical energy available in the storage means and the maximum electrical power that can be absorbed by the consumers.
- the knowledge of this autonomy makes it possible to further optimize the use of the sources by not triggering the use of the so-called main sources, for example the generator and / or the fuel cell, only when the autonomy of the storage means goes down. below a certain predetermined threshold.
- the method further comprises a step of calculating the total current consumed by the plurality of consumers.
- FIG. 2 is a diagram illustrating the structure and operation of the energy management system according to one embodiment of the invention.
- the generator 12 includes a diesel engine providing a power equal to 230 kW, for example. It is the main source of electrical energy.
- the supercapacitor block 18 comprises a plurality of supercapacitors, for example 8 modules of 200 series-connected 5000F / 2.5V supercapacitors. The total capacity of the block of supercapacitors 18 is then equal, in this example to 200 F.
- the electric power sources 12, 16, 18 and the consumers 6, 20 are further connected to each other via a CAN computer network 30 to which a supervisor 32 is connected.
- the collecting means 46 receive means 40 for acquiring information relating to the power of the generator set 12, to the charge states of the battery pack 16 and / or the supercapacitor block 18, to a slope limitation. of loading of the storage means 14, to a quantity of available energy stored in the
- the calculated autonomy is transmitted to control means 50 for starting up the generator set 12.
- control means 50 decide to start up the generator set 12 when the value of the calculated autonomy is lower than a determined threshold, preferably between 20 and 40 seconds, in particular equal to 30 seconds.
- This threshold of autonomy is determined taking into account the composition of the train towed by the machine and its mission, in terms of speed to meet, line profile, etc., and the characteristics of the means of storage in order to optimize their use in terms of energy efficiency, pollution, lifespan, etc.
- the calculation means 56 implement the principle of conservation of the currents (law of the nodes), the electric current 58 to be supplied by the storage means 14 then being equal to the difference between the current 57 to be supplied to the consumers for the achievement of the mission and the electrical current setpoint 54 to be supplied by the generator 12.
- the processing means 42 also comprise frequency discrimination means 60. These frequency discrimination means 60 distribute the current 58 to be supplied by the storage means 14 over at least two frequency domains according to the characteristics of the desired mission. the machine 2.
- the frequency discrimination means 60 define three frequency domains 62, 64, 66 for operating the machine 2.
- the first frequency domain 62 is close to the continuous. It corresponds to the average value of the mission of the vehicle 2.
- a local service is an example of an operation of the vehicle 2 in this frequency domain. Indeed, during such a service, the power requested by the mission is almost continuous with amplitudes that can be important and not very variable.
- Frequency domain 62 preferably includes frequencies below 10 mHz.
- the second frequency domain 64 corresponds to a very variable operating mode of the vehicle 2.
- a maneuver is an example of an operation of the vehicle 2 in this frequency domain. Indeed, during such a maneuver, the power requested by the mission shows large amplitude variations, brief and fast.
- This second frequency domain 64 preferably includes frequencies above 20 mHz.
- the third frequency domain 66 is intermediate to the first and second frequency domain. It preferably includes frequencies between 10 mHz and 20 mHz.
- the frequency discrimination means 60 allocate to each defined frequency domain at least one source capable of supplying electrical energy during operation of the machine in said domain.
- the inventors have discovered that the temporal intrinsic properties of the energy storage components project at locations distinct from the frequency axis. More particularly, the batteries are in the low-frequency range, from the DC to a few mHz, while the supercapacitors are able to withstand operating cycles close to a hundred MHz to a few Hz. The characteristics of the flywheels are inertia place them between the batteries and the supercapacitors.
- the frequency discrimination means 60 allocate the battery pack 16 as a priority to the first frequency domain 62.
- the generator set 12 is also adapted to this frequency domain 62.
- the frequency discrimination means 60 allocate the supercapacitor block 18 to the second frequency domain 64.
- the frequency discrimination means 60 allocate a flywheel and / or the battery pack 16 and / or the block of supercapacitors 18 to the third frequency domain 66, as the case may be, according to the amount of stored energy available and their state of charge.
- Electrical energy instructions 68, 70, 72 to be provided by the storage means allocated to the first, second and third frequency domains are transmitted by the frequency discrimination means 60.
- the processing means 42 also include mission carry-over means 74. These transfer means 74 receive the electrical energy instructions 68, 70, 72 of the three frequency domains 62, 64, 66 transmitted from the frequency discrimination means 60. They also receive the electrical energy instruction 52 to be supplied by the generator 12 from the control means 50 for starting the generator 12.
- the reporting means 74 also receives information relating to the functional characteristics of the different sources from the information collection means 46. These functional characteristics include the physical limitations of the sources.
- the transfer means 74 compare the electrical energy setpoint to be provided by the source and the determined amount of energy that can actually be provided by the same source. If the setpoint is greater than the determined amount of energy, the transfer means 74 selects another source and directs the other source to provide the energy difference between the setpoint and the determined amount of energy.
- the electrical energy setpoint to be supplied by the sources allocated to the second frequency domain 64 is equal to 70% of
- Report 74 may carry over part of the mission from one frequency domain to another frequency domain when the first domain can not fully fulfill the mission assigned to it by the frequency discrimination means 60.
- the carryover strategy implemented in the selection of another source promotes the use of the block of supercapacitors 18 which have a longer life in terms of the number of charge and discharge cycles.
- new electrical energy orders 76, 78, 80 to be supplied by the storage means allocated to the first, second and third frequency domains are transmitted from the means of postponement 74.
- an instruction to limit the tensile force 81 is emitted from the transfer means 74, to the transmission means 44 setpoints, when the sum of the electric energy can be provided by the different sources n ' is not enough to ensure the operation required by the mission.
- processing means 42 comprise balancing means 82, 84, 86 of the use of the sources allocated to the frequency domain 62, 64, 66 respectively.
- the balancing means balance the requested mission, that is to say the electrical energy setpoint to be provided by the sources allocated to the frequency domain concerned, between each
- the battery pack 16 is allocated to the first frequency domain 62.
- the balancing means 82 then seek to balance the
- new electrical energy instructions 88, 90, 92 to be provided by the storage means allocated respectively to the first, second and third frequency domains are transmitted from the balancing means 82, 84, 86 to the transmission means 44 of instructions.
- Curve 100 represents the power absorbed by the traction motors 6 expressed in kilowatts (kW) as a function of time in seconds (s). This power is of negative sign since it is absorbed.
- the curve 104 represents the power provided by the battery pack 16 expressed in kilowatts (kW) as a function of time in seconds (s).
- the diagram of FIG. 5 is an extract of the diagram of FIG. 4 for the period of time between 0 and approximately 180 seconds.
- the control means 50 then controls the start-up of the generator set 12.
- the power supplied by the generator set 12 (curve 102) increases progressively.
- the generator set 12 first takes over from the supercapacitor block 18 and then from the battery pack 16.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1150753A FR2970911B1 (fr) | 2011-02-01 | 2011-02-01 | Procede et systeme de gestion de l'energie d'un engin ferroviaire. |
PCT/FR2012/050206 WO2012104543A1 (fr) | 2011-02-01 | 2012-01-31 | Procede et systeme de gestion de l'energie d'un engin ferroviaire |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2670620A1 true EP2670620A1 (fr) | 2013-12-11 |
Family
ID=45811548
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12707828.5A Withdrawn EP2670620A1 (fr) | 2011-02-01 | 2012-01-31 | Procede et systeme de gestion de l'energie d'un engin ferroviaire |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2670620A1 (fr) |
FR (1) | FR2970911B1 (fr) |
WO (1) | WO2012104543A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3102127B1 (fr) * | 2019-10-16 | 2021-10-29 | Alstom Transp Tech | Procédé de gestion d’énergie dans un véhicule hybride |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5318142A (en) * | 1992-11-05 | 1994-06-07 | Ford Motor Company | Hybrid drive system |
US7061131B2 (en) * | 2003-06-13 | 2006-06-13 | General Electric Company | Method and system for optimizing energy storage in hybrid off-highway vehicle systems and trolley connected OHV systems |
US7078877B2 (en) * | 2003-08-18 | 2006-07-18 | General Electric Company | Vehicle energy storage system control methods and method for determining battery cycle life projection for heavy duty hybrid vehicle applications |
US8138720B2 (en) * | 2008-02-26 | 2012-03-20 | Afs Trinity Power Corporation | System and method for dual energy storage management |
-
2011
- 2011-02-01 FR FR1150753A patent/FR2970911B1/fr active Active
-
2012
- 2012-01-31 EP EP12707828.5A patent/EP2670620A1/fr not_active Withdrawn
- 2012-01-31 WO PCT/FR2012/050206 patent/WO2012104543A1/fr active Application Filing
Non-Patent Citations (2)
Title |
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None * |
See also references of WO2012104543A1 * |
Also Published As
Publication number | Publication date |
---|---|
FR2970911B1 (fr) | 2014-08-22 |
FR2970911A1 (fr) | 2012-08-03 |
WO2012104543A1 (fr) | 2012-08-09 |
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