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EP3077243A1 - Unité d'alimentation électrique d'un véhicule ferroviaire - Google Patents

Unité d'alimentation électrique d'un véhicule ferroviaire

Info

Publication number
EP3077243A1
EP3077243A1 EP15704732.5A EP15704732A EP3077243A1 EP 3077243 A1 EP3077243 A1 EP 3077243A1 EP 15704732 A EP15704732 A EP 15704732A EP 3077243 A1 EP3077243 A1 EP 3077243A1
Authority
EP
European Patent Office
Prior art keywords
unit
medium
voltage
frequency
frequency transformer
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Withdrawn
Application number
EP15704732.5A
Other languages
German (de)
English (en)
Inventor
Martin Glinka
Jens Konstantin Schwarzer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens Mobility GmbH
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP3077243A1 publication Critical patent/EP3077243A1/fr
Withdrawn legal-status Critical Current

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
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0092—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption with use of redundant elements for safety purposes
    • 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

Definitions

  • the invention relates to a vehicle electrical system for supplying power consumers to an electrical system of an electrically powered railway vehicle with energy, with a voltage input ⁇ and multiple voltage outputs by a
  • Separating unit are each electrically isolated from the voltage input.
  • Rail vehicles are equipped for technical reasons and green ⁇ the passenger comfort with a variety of AC consumers, such as air conditioning systems - which are often the largest consumers -, heating equipment, etc. equipped.
  • the energy supply for these AC consumers is provided by a so-called on-board network.
  • the electrical system is thereby indirectly - and usually across a galvanic separation away - fed by the main energy supply device of the rail vehicle.
  • the fed into the electrical system of energy must meet certain requirements Anfor ⁇ . This applies in particular with regard to the boundary conditions of the electromagnetic compatibility and the voltage quality. There is also the requirement that board power supply energy-saving as possible, cost-effectively and with the expenditure of as little mass ⁇ be riding determine.
  • on-board power units are known as power supply devices which derive, convert or process energy from the main energy supply device of the rail vehicle and feed it into the vehicle electrical system.
  • conventional vehicle electrical units comprise a potential separation, for example in the form of a transformer.
  • This object is achieved by a vehicle electrical unit of the type mentioned, in which according to the invention between the voltage input and the voltage outputs a medium-frequency inverter is arranged and the separation unit has a Mittelfrequenztransformatorhow connected to the center frequency inverter primary side and a secondary side with a plurality of secondary windings and each of the secondary windings connected to one of the voltage outputs.
  • the invention is based on the consideration that a particularly advantageous energy supply of the vehicle electrical system can take place via an on-board power unit, which is prepared for operation under medium- frequency voltage and has a separation unit for galvanic isolation of a plurality of voltage outputs.
  • a medium-frequency voltage in this context may be an AC voltage between 500 Hz and 100 kHz, in particular an AC voltage of 2 kHz to 20, in particular up to 50 kHz.
  • the on-board unit has a medium-frequency inverter and a separation unit with a medium-frequency transformer unit, wherein both units are structurally prepared for operation under medium-frequency alternating voltage.
  • the medium - frequency architecture of the Bordnetzcher achieve, among other things, an advantageous saving in mass.
  • the saving in weight can be especially since ⁇ achieved by that the medium-frequency transformer unit of the separation unit having a relatively low mass value, especially when compared to conventional transformers which are operated, for example under 50 Hz AC voltages.
  • the on-board unit has a separation unit with a medium-frequency transformer unit for galvanic isolation of
  • the separation unit is prepared for galvanic isolation of the primary side of the secondary side and ideally insomniaßi ⁇ gamba also for galvanic isolation of the voltage outputs from each other. Due to the electrical isolation of the voltage outputs of the on-board power unit, a particularly advantageous decoupling of power consumers, which are connected to the voltage outputs, can take place from the primary side of the on-board power unit. Due to the galvanic separation of the voltage outputs of the vehicle electrical system from one another, an advantageous freedom from feedback of the power consumers, in particular ⁇ in the case of a defect in one and / or more of the power consumers, can be achieved.
  • the onboard unit is a unit for the power supply of electricity consumers, which are arranged in particular on the electrical system of a rail vehicle.
  • the vehicle electrical system, the electrical cabling and various current consumers rather, for example, include an air conditioner or a Schueinrich ⁇ tung, the rail vehicle.
  • the onboard unit is in particular for the energy supply of AC consumers, in particular of consumers who are operated with three-phase AC voltage prepared.
  • a voltage input of the onboard power supply unit may be a terminal for electrical conductors, particularly Ka ⁇ bel having who are prepared to supply the on-board network unit operating power.
  • Connecting means in the present context, an at least indirect connection that can be conductive to the special ⁇ produce.
  • the verbs connect and connect or connected and connected can be used synonymously in the given context.
  • a voltage output of the onboard power unit can have a connection element for electrical conductors, in particular cables, which are prepared to initiate operating energy from the onboard power supply unit into the vehicle electrical system.
  • a voltage output may in particular be a
  • the medium frequency inverter of the on-board unit may be an inverter prepared to convert a given DC voltage to a medium frequency AC voltage.
  • the medium-frequency transformer unit of the vehicle electrical system ⁇ unit can be a transformer unit ⁇ rides to Rail under medium-frequency AC voltages operated ben to be.
  • the medium-frequency transformer unit under ⁇ separates structurally of a conventional transformer unit, which is prepared, for example, to operate under 50 Hz AC clamping ⁇ voltage, by an advantageously masseär ⁇ mers transformer core and less massive transformer core parts with comparable transmissible power.
  • the medium-frequency transformer unit advantageously has a reduced mass-to-power ratio compared to conventional transformers, in particular compared to main transformers of rail vehicles, which are operated for example below 16 2/3 Hz.
  • Each of the voltage outputs of the on-board unit is connected to a secondary winding.
  • Each is particularly advantageous the secondary windings of the vehicle electrical unit connected to a single one of the voltage outputs.
  • Advantageously, can be dispensed in a conventional equipment of the voltage outputs, insbeson ⁇ particular the upstream electrical and / or electronic components with DC reactors so, which affects cost and weight-reducing effect.
  • the medium-frequency inverter of the on-board unit is a
  • the traction inverter may be an inverter that is prepared for supplying power to at least one drive motor of a rail vehicle.
  • the traction inverter may include a four-quadrant, an intermediate circuit and a pulse inverter, for supplying a variable in its speed drive motor.
  • a structural arrangement may be made such that a traction phase of the traction inverter is connected to a primary winding of the medium-frequency transformer unit.
  • the medium-frequency transformer unit is connected to at least two of ⁇ telfrequenz Cartrichtern.
  • the medium frequency inverters are preferably connected to the primary side of the ⁇ With telfrequenztransformatorhow.
  • the medium-frequency transformer unit has at least two primary windings which are each provided with a medium-frequency inverter. are bound. Instead of one or more medium frequency inverters, one or more traction inverters can be connected to the primary winding or the primary windings. More than one mid-frequency inverter can be connected to each of the primary windings.
  • the medium-frequency transformer unit having a plurality of primary side parallel-connected medium frequency ⁇ transformers, which are connected to a medium-frequency inverter . Easily can be done ge as a full secondary-side decoupling of the voltage outputs to achieve enhanced electromagnetic compatibility ⁇ friendliness of energy supply.
  • the medium-frequency transformers may each have at least two primary windings, wherein in each case a primary winding of a medium-frequency transformer is connected in parallel to each of a single one of the primary windings of each other medium-frequency transformer and connected to a medium-frequency inverter.
  • each of the primary circuits configured in this way is preferably connected to a single medium-frequency inverter.
  • a decoupling reactor can be connected to each of the secondary windings of the medium-frequency transformer unit.
  • the Entkopplungsdros ⁇ sel is an electrical or electronic component with predominantly inductive mode of action, which is prepared to attenuate secondary side power flows between the individual secondary-side voltage outputs or bring to compensate. Especially easy it is to the negative developments unwanted secondary-side voltage fluctuations ⁇ limit.
  • a rectifier is connected to each of the secondary windings of the medium-frequency transformer unit.
  • a plurality of rectifiers are connected to the secondary windings, in particular such that each rectifier is connected to a single one of the secondary windings.
  • a rectifier is connected to a parallel circuit of a plurality of secondary windings.
  • an alternating voltage varying in its frequency as is commonly provided, for example, by the traction inverters, can be equalized in a particularly simple manner. ⁇ advantageous enough, the energy supply of electricity consumers thus remains unaffected by the current frequency of
  • the rectifier may be a regulated half-bridge rectifier.
  • the design as a regulated semiconductor switches based rectifier.
  • a supply of the voltage outputs at the jeweili ⁇ gen operational optimum point of the load situation as an independently controllable power transmission can be achieved to the voltage outputs, in particular a power transmission.
  • the possibility of energy recovery of individual voltage outputs to the primary side of the medium-frequency transformer or to one and / or more voltage outputs of the vehicle electrical unit can be achieved in an advantageous manner, for example during braking ei ⁇ nes fan for stabilizing the electrical system and / or for feeding into a traction intermediate circuit .
  • several of the secondary windings of the medium-frequency transformer unit are each connected to a separate consumer intermediate circuit.
  • a consumer link can be an intermediate circle, which is arranged between other electrical and / or electronic components of the vehicle electrical system. In a simple way, so galvanic isolation of several consumers intermediate circuits, so multiple voltage outputs ⁇ the on-board unit can be achieved.
  • a combination of rectifier and inverter is arranged between at least one of the secondary windings and the voltage output associated therewith.
  • a consumer intermediate circuit may be arranged Zvi ⁇ rule the rectifier and the inverter.
  • a combination, that is to say in particular a series connection, of a rectifier and an inverter is arranged on each of the secondary windings.
  • the inverter which may be in particular a pulse-controlled inverter, is prepared for feeding a power consumer.
  • a structural arrangement may be such that a roller ⁇ selrichter is arranged for supplying a single current consumer, and is thus connected to a single power consumers.
  • An inverter may also be prepared to power a consumer group.
  • a Stromverbrau ⁇ cherou can be a lot of electricity consumers that provide at least similar demands on their energy supply.
  • a current consumer group can also be an amount of electricity consumers which are arranged in a structural proximity to each other within a particular construction phase ei ⁇ nes rail vehicle. So can be achieved in a particularly simple manner an advantageous adapted power supply different types of power consumers.
  • a matrix converter and / or a modular direct converter is / are arranged between at least one of the secondary windings and the voltage output associated therewith.
  • the matrix converter may be an electronic actuator which is prepared to generate an AC voltage of a different amplitude and frequency from an AC voltage of given amplitude and given frequency. Also, the phase number of the output voltage can be changed. In a simple way, a particularly demand-adapted on-board power supply can thus be achieved.
  • the modular direct converter can also be used to generate an AC voltage with a different amplitude and frequency from an AC voltage with a given amplitude and given frequency. Also, the phase number of the output voltage can be changed.
  • a switching means which is arranged between at least one of the primary windings of the primary side and the voltage input.
  • the switching means is for separating and / or connecting the primary winding of or with the primary side of the middle frequency transformer unitlitis ⁇ riding.
  • Sun can be achieved in an advantageous manner that an unwanted ground and / or short circuit impact free at one of the primary windings remains on the secondary side of the board ⁇ network entity.
  • a defective phase for example a
  • Tratechnischsstromrichters be separated from the medium-frequency transformer unit.
  • This switching means can be carried out both bipolar and unipolar.
  • further comprising at least one switching means, the interim ⁇ rule at least one of the secondary windings of the secondary side, and the voltage output is arranged.
  • the switching means is for separating and / or connecting the secondary winding of or prepared with the secondary side of the medium frequency transformer unit.
  • the switching means can be arranged so that each of the voltage outputs can be separated individually from the secondary side of the medium-frequency transformer unit.
  • the onboard power supply unit is a firmly connected component of a slide ⁇ nenhuss, in particular such that the rail vehicle comprises the vehicle electrical system unit.
  • the on-board unit can be expediently a component of a rail vehicle drive.
  • the invention is directed to a method for supplying power to an electrical system of an electrically powered railway vehicle with energy, is introduced in the energy in a voltage input and dissipated at a plurality of voltage outputs, the voltage ⁇ outputs are electrically isolated by a separation unit from the voltage input ,
  • An advantageous method for supplying power consumers in a vehicle electrical system of an electrically powered rail vehicle may be achieved when a connected to the voltage input means frequency inverter generates a co- telfrequenz AC voltage, supplied to it to a medium-frequency transformer unit of the separation unit, transformed to Meh ⁇ reren secondary windings of the medium-frequency transformer unit and the transformed Medium frequency AC voltage is passed to the voltage outputs.
  • the description of advantageous embodiments of the invention given hitherto contains numerous features which are reproduced in some detail in the individual subclaims. However, these features may be are advantageously also be considered individually and summarized into meaningful wide ⁇ ren combinations. In particular, these features can be combined individually and in any suitable combination with the method according to the invention and the device according to the invention in accordance with the independent claims.
  • FIG. 2 shows the on-board unit from FIG. 1 with a medium-frequency transformer having a primary winding and two galvanically isolated voltage outputs
  • FIG 3 shows a further board power unit with several primary windings and voltage ⁇ filter units
  • FIG 4 is a further board network unit having a plurality of primary windings ⁇ or medium frequency transformers in parallel
  • 5 shows a more-board power supply unit with a plurality of means ⁇ -frequency transformer with two primary windings
  • FIG. 6 shows a further board network unit with a plurality of means ⁇ -frequency transformer with the secondary side lelsctreu,
  • the rail vehicle 2 comprises a main energy supply device 8, which is equipped with a current collector 10, a main transformer 12 and two input rectifiers 14 designed as rectifiers.
  • the main transformer 12 is designed in particular for the conversion of alternating voltage with a frequency in the range of 16 2/3 Hz and an amplitude of 15 kV in AC voltage with a frequency in the range of 16 2/3 Hz and an amplitude of 1 kV to 3 kV ⁇ equips.
  • the input power converters 14 of the main power supply device 8 feed a traction intermediate circuit 16.
  • Traction intermediate circuit 16 is in particular a DC ⁇ circle, which is prepared for carrying a DC voltage in the range of 1 kV to 3 kV.
  • At traction intermediate circuit 16 a plurality of medium frequency inverters 18 are arranged.
  • Several of the medium frequency inverters 18 are arranged in the form of traction pulse inverters which are each connected to a drive motor 20.
  • the medium frequency Inverter 18 are designed in particular as a half-bridge circuit or as a parallel connection of a plurality of alternately clocking half-bridge circuits.
  • the medium-frequency inverters can also be embodied as three-phase pulse inverters or n-phase inverters.
  • the drive motors 20 are in particular continuously re ⁇ gelable asynchronous machines, which are prepared for the operation under AC voltages up to 2 kV with a frequency of up to 200 Hz.
  • the rail vehicle 2 includes a vehicle assembly unit 22 having a separation unit 24, a middle frequency phase 26 of one of the medium frequency inverters 18 and multiple voltage outputs 28.
  • the on-board unit 22 is arranged in the driven carriage 4, which does not necessarily have to be the case in general.
  • the board ⁇ network unit 22 does not necessarily have only one Mittelfre ⁇ quenzphase 26 and not necessarily comprise only one of the means ⁇ frequency inverter 18th
  • the power consumers 30 are arranged in at least one of the non-driven carriages 6 of the rail vehicle 2. Generally, the
  • Power consumers 30 may additionally be arranged in at least one of the driven carriages 4 of the rail vehicle 2.
  • the power consumers 30 are electrical consumers, such as an air conditioner, a heater, a Pum ⁇ PE, a compressed air generator, etc.
  • the power consumers 30 are in particular AC consumers, especially those consumers who are prepared to receive three-phase alternating current.
  • the main energy supply unit 8 of the rail vehicle 2 supplies inter alia the drive motors 20 of the drive ⁇ nen carriage 4 with operating energy.
  • the operating energy is tapped with the pantograph 10 usually in the form of an AC voltage on a catenary and to the main Transformer 12 passed.
  • the transposed by the main transformer 12 AC voltage is applied to the
  • Input converter 14 directed, directed by this in a DC voltage and fed into the traction intermediate circuit 16.
  • the voltage applied to the traction intermediate circuit 16 DC voltage is directed by the medium frequency inverters 18 in the form of traction pulse inverters such that it is suitable for operating the drive motors 20.
  • the control of the drive motors 20 with operating energy by the medium-frequency inverter 18 is steplessly with AC voltages with amplitudes of up to 3 kV and fundamental frequencies of up to 200 Hz.
  • the on-board unit 22 applies the indirectly for operating the Stromver ⁇ consumers 30 necessary operating power 2. from the main power supply means 8 of the rail vehicle A voltage input of the onboard power supply unit 22 is supplied by the traction intermediate circuit 16, but generally also a plurality of voltage inputs can be present.
  • the medium-frequency inverter 18, which is part of the on-board unit 22, directs the DC voltage of the traction intermediate circuit 16 in egg ⁇ ne AC voltage and passes them via the middle frequency phase 26 to the separation unit 24 on.
  • the separation unit 24 separates the voltage input of the vehicle electrical system unit 22 of the voltage outputs 28 of the onboard power supply unit 22.
  • the power consumers 30 are supplied via the voltage outputs 28 with Be ⁇ drive energy and galvanically separated by the separation unit 24, both the voltage input of the onboard power supply unit 22 as well as from each other.
  • the on-board unit 22 is designated by the reference numeral 22a in FIG.
  • the on-board unit 22 comprises among other things a means ⁇ frequency inverter 18a, which may alternatively also fed from a source other than the traction intermediate circuit, a separation unit 24a, a plurality of voltage outputs 28a and a voltage input terminal 32a.
  • the separation unit 24a has a medium-frequency transformer unit 34a with a primary side 36a, a secondary side 38a and a transformer core 40a.
  • a primary is arranged 42a märwicklung to which in turn a Mittelfre ⁇ quenzphase 26a of the medium-frequency inverter 18a is connected elekt ⁇ driven.
  • Rectifier 46a can be designed as controlled based on semi ⁇ conductor switches rectifier particular. Connected in series with each of the two rectifiers 46a is an inverter 48a in each case, to each of the inverters 48a a number of voltage outputs 28a of the on-board unit 22a are connected. In the embodiment shown here, the voltage outputs are three-phase 28a, which are conceivable in the General also n-phaseistsaus ⁇ gears, n is an element of the set of N natuer ⁇ union numbers. Between each one of the rectifier 46a and one of the inverters 48a, a load intermediate circuit 50a is arranged. The load intermediate circuits 50a are thus prepared for carrying direct current.
  • the feeding of the on-board power unit 22a with operating energy takes place at the voltage input 32a, in particular starting from an nem traction intermediate circuit 16 (see FIG 1) of the rail driving ⁇ zeugs 2.
  • the medium-frequency inverter 18a converts the voltage present at voltage input 32 a DC voltage into an AC voltage and feeds this into the primary winding 42a of the medium-frequency transformer unit 34a.
  • the medium-frequency transformer unit 34a provides a galvanic separation between the primary African ⁇ -side voltage input 32a and secondary-side voltage outputs 28a of the onboard power supply unit 22a forth. Further, the medium-frequency transformer unit 34a uses a primary side lying at ⁇ alternating voltage having a given amplitude and frequency into an alternating voltage of the same frequency, and - not necessarily - of different amplitude to.
  • the supply of the voltage outputs 28a takes place indirectly from the alternating voltage applied to the secondary windings 44a, via which they are interposed in series
  • Rectifier 46a and inverter 48a are fed from a plurality of consumer intermediate circuits 50a.
  • the arrangement shown of several secondary windings 44a establishes a galvanic isolation of the voltage outputs 28a, which ensures in the case of an unwanted earth and / or short circuit at one of the voltage outputs 28a ei ⁇ ne feedback freedom to the other voltage outputs 28a.
  • FIG. 22b Another embodiment of a vehicle electrical unit 22b is shown in FIG.
  • the descriptions of subsequent embodiments are limited in general Wesentli ⁇ chen to the differences from the embodiment of FIG 2, the remain the same features and func ⁇ nen is referenced.
  • Substantially identical components are in principle numbered with the same reference numerals and features not mentioned are described in the following explanations. example, without being described again.
  • the on-board unit 22b in FIG. 3 comprises, inter alia, two medium-frequency inverters 18, a separation unit 24b, a plurality of voltage outputs 28b, 28c and two voltage inputs 32b.
  • the number of voltage inputs 32b and the middle frequency inverter 18b need not be limited to only two, of course.
  • the separation unit 24b has a Mittelfrequenztransformator ⁇ unit 34b with a primary side 36b and a secondary side 38b and a transformer core 40b.
  • the middle frequency phases 26b are each equipped with a switching means 52 which is prepared for connecting and / or disconnecting the respective medium frequency inverter 18b from the respective primary winding 42b.
  • the arrangement of the switching means 52 results in four operation-relevant switching states:
  • Switching means 52 and the upper switching means 52 closed ⁇ sen, such that both medium-frequency inverters 18b are connected to the primary side 36b of the medium-frequency transformer unit 34b, for their common feed with primary energy.
  • Switching means 52 and the upper switching means 52 are opened such that both middle frequency inverters 18b are separated from the primary side 36b of the middle frequency transformer unit 34b.
  • the secondary-side power consumers 30 can exchange energy with one another independently of the primary side 36b. This can e.g. in the case of external supply via one of the rectifiers 46b.
  • the arrangement of the switching means 52 results in particular advantages in the case of a defect of one of the medium-frequency inverter 18b. Ie negative effects of unwanted soil and / or short-circuit in one of the Mittelfre ⁇ quenz Pizzarichter 18b on the function of the medium-frequency transformer unit 34b can be advantageously limited.
  • Rectifier 46b each equipped with a switching means 54 ⁇ .
  • the switching means 54 is prepared for connecting and / or disconnecting the rectifier 46b and an AC inverter 62 from the respective secondary windings 44b and 45, respectively.
  • the switching means 54 are usually in the closed position, so that all the voltage outputs 28b, 28c are connected to the medium-frequency transformer unit 34b.
  • the switching means 54 in the on-board unit 22b can in the case of ei ⁇ nes unwanted defect on one of the secondary side the Switching means 54 downstream electrical and / or electronic components and / or power consumers 30 a feedback on the secondary side 38b, ie on the entire medium-frequency transformer unit 34b, can be achieved.
  • an LC filter unit 56 with an inductance unit 58 and a capacitor unit 60 is arranged on the secondary side in series connection to the respective inverters 48b.
  • the LC filter units 56 are prepared to filter the output voltages of the respective inverters 48b and the AC inverter 62, respectively.
  • the voltage quality, especially the power smoothness, the on-board power supply can advantageously be regulated in particular ⁇ DERS easily.
  • Actuator symbol shown which is to be understood as a placeholder for insbe ⁇ special either a matrix converter or a modular direct converter.
  • the generic AC inverter 62 is prepared to convert single-phase AC, as shown, to three-phase AC, generally also to N-phase AC.
  • the generic Kirstromumrichter 62 is also prepared to change the amplitude, the frequency and if necessary - in the embodiment in Figure 3, but not shown - and the number of phases of the output voltage.
  • the generic AC inverter 62 in the On-board unit 22 b a particularly variable and space-economical energy supply of the power consumers 30 via the voltage outputs 28 d can be achieved.
  • Another embodiment of a vehicle electrical unit 22c is shown in FIG.
  • the on-board unit 22c comprises 32c un ⁇ ter alia, a medium-frequency inverter 18c, a separation unit 24c, a plurality of voltage outputs 28d and a voltage input.
  • the separation unit 24c has a multipart transformer core 40c.
  • the transformer core is a multi-part 40c being ⁇ leads, so that a plurality of parts which are in themselves prepared for radio ⁇ tion as a transformer core, the transformer core 40c of the medium-frequency transformer unit 34c bil ⁇ .
  • the complete secondary-side decoupling of the individual voltage outputs 28f increased electromagnetic compatibility of Bordnetzein ⁇ unit 22c can be achieved.
  • the medium-frequency transformer unit in this connexion to ⁇ be composed of several units or means frequency transformers 35a-c or assembled as understood.
  • On the primary side 36c of the middle frequency transformer unit 34c a plurality of primary windings 42c are arranged.
  • the primary windings 42 c are arranged in a parallel ⁇ circuit and prepared for feeding by the medium-frequency inverter 18 c and connected to this electrically conductive.
  • the on-board unit 22c may have more than one medium-frequency inverter 18c for feeding the parallel-connected primary windings 42c.
  • the remaining components and features of the on-board unit 22c which are not fundamentally ⁇ addition of those of the previous embodiments
  • the separation unit 24d has a Mittelfrequenztransformator ⁇ unit 34d with three medium-frequency transformers 35d-f.
  • Each of the three medium-frequency transformers 35d-f is on the primary side each equipped with two primary windings 42d and on the secondary side, each with a secondary winding 44d.
  • Each of the primary windings 42d of each of the medium frequency transformers 35d-f is connected in parallel with each one of the primary windings 42d of each other medium frequency transformer 35d-f and connected to one of the center frequency inverters 18d.
  • a high primary-side redundancy of the supply of the medium-frequency transformers 35d-f can be achieved in a particularly simple manner.
  • FIG 6 another embodiment of a vehicle electrical system ⁇ unit 22e is shown.
  • the on-board unit 22e has inter alia two medium-frequency inverters 18e, a separation unit 24e, a plurality of voltage outputs 28f and two voltage inputs 32e.
  • the separation unit 24e has a medium frequency transformer unit 34e with two medium frequency transformers 35g and 35h on.
  • Each of the two medium-frequency transformers and 35g 35f 42e is on the primary side and the secondary side 44e, each having two secondary windings being ⁇ equipped with a respective primary winding.
  • Each of the secondary windings 44e of each of the medium-frequency transformers 35g and 35h is connected in parallel with each one of the secondary windings 44e of the other medium-frequency transformer 35g or 35h and connected to a single one of the rectifiers 46e.
  • a high degree of redundancy of the feed of the rectifier 46e and thus of the current consumer 30 can be achieved in a particularly simple manner.
  • Another embodiment of a vehicle electrical unit 22f is shown in FIG.
  • the on-board unit 22f is designed in Tei ⁇ len according to the embodiment of FIG 2 and has as an extension secondary-side decoupling chokes 64.
  • the decoupling inductors 64 are ⁇ arranged in series with the secondary windings 44f of the medium-frequency transformer unit 34f on. In each case one of the decoupling chokes 64 is arranged at each one of the alternating current phases of the rectifier 46f.
  • FIG. 8 another embodiment of a vehicle electrical system ⁇ 22g is shown.
  • the on-board unit 22g has a three-phase design 66 of the medium-frequency phase 26g or the medium-frequency inverter 18g, the separation unit 24g or the medium-frequency transformer unit 34g and the Consumer intermediate circuits 50g.
  • the on-board unit 22g has a three-phase design 66 of the medium-frequency phase 26g or the medium-frequency inverter 18g, the separation unit 24g or the medium-frequency transformer unit 34g and the Consumer intermediate circuits 50g.
  • the on-board unit 22g has a three-phase design 66 of the medium-frequency phase 26g or the medium-frequency inverter 18g, the separation unit 24g or the medium-frequency transformer unit 34g and the Consumer intermediate circuits 50g.
  • only a subset of said electrical or electronic elements of the on-board unit 22g is designed in three phases, wherein other elements of the on-board unit 22h can be designed in one, two or n phases.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Inverter Devices (AREA)

Abstract

L'invention concerne une unité d'alimentation électrique de véhicule (22) servant à alimenter en l'énergie des consommateurs de puissance (30) d'un système électrique d'un véhicule ferroviaire à entraînement électrique (2), comprenant une entrée de tension (32) et plusieurs sorties de tension (28) qui sont chacune séparées électriquement de l'entrée de tension (32) par une unité de séparation (24). Selon l'invention, pour spécifier une unité d'alimentation électrique avantageuse pour les consommateurs de puissance d'un véhicule ferroviaire, un onduleur à fréquence moyenne (18) est disposé entre l'entrée de tension (32) et les sorties de tension (28) et l'unité de séparation (24) comporte une unité de transformateur moyenne fréquence (34) pourvue d'un côté primaire (36) raccordé à l'onduleur à fréquence moyenne (18) et d'un côté secondaire (38) comportant une pluralité d'enroulements secondaires (44) et chacun des enroulements secondaires (44) est relié à l'une des sorties de tension (28).
EP15704732.5A 2014-02-04 2015-02-02 Unité d'alimentation électrique d'un véhicule ferroviaire Withdrawn EP3077243A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014201955.9A DE102014201955A1 (de) 2014-02-04 2014-02-04 Bordnetzeinheit für ein Schienenfahrzeug
PCT/EP2015/052071 WO2015117921A1 (fr) 2014-02-04 2015-02-02 Unité d'alimentation électrique d'un véhicule ferroviaire

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EP3077243A1 true EP3077243A1 (fr) 2016-10-12

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EP (1) EP3077243A1 (fr)
CN (1) CN206528351U (fr)
DE (1) DE102014201955A1 (fr)
WO (1) WO2015117921A1 (fr)

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CN108819800B (zh) * 2018-06-26 2021-06-01 贾晶艳 多流制电力机车的网侧变流装置的处理方法及装置
EP3767653B1 (fr) * 2019-07-16 2023-01-11 ABB Schweiz AG Ensemble de transformateurs avec transformateurs moyenne fréquence
DE102020214699A1 (de) * 2020-11-23 2022-05-25 Volkswagen Aktiengesellschaft Elektrisches Netzwerk in einem Kraftfahrzeug
CN112751337B (zh) * 2020-12-29 2022-04-26 重庆中车长客轨道车辆有限公司 一种用于双流制车的吸能装置

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DE102014010508A1 (de) * 2013-07-19 2015-01-22 Sma Railway Technology Gmbh Schaltung zur Leistungsverteilung mit Resonanzwandlern

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CN111071041B (zh) * 2018-10-18 2023-05-23 中车株洲电力机车研究所有限公司 车载供电系统

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CN206528351U (zh) 2017-09-29
DE102014201955A1 (de) 2015-08-06

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