Overhead line system with tilted parallel field

Description

[0001] The invention relates to an overhead line system and a method for erecting the overhead line system.

[0002] Overhead line systems are used to provide electrical energy for an electrically powered vehicle. This electrical energy is usually transmitted via contact wires to a current collector, in particular a pantograph, on the vehicle. To operate, the contact wires must exhibit a certain mechanical tensile stress. For this reason, the contact wires are fed to a guy mast after a length of approximately 1.5 km. To provide a continuously passable overhead line, the individual contact wires are arranged in parallel fields to form a continuously passable overhead line. Along these parallel fields, the contact wires must run at predetermined intervals according to strict position specifications to ensure reliable replacement of the contact wires.In addition to the electrification of rail vehicles, road vehicles are increasingly being electrified, which requires the adaptation of overhead line systems to non-rail vehicles. Compared to overhead line systems for rail vehicles, such overhead line systems for non-rail vehicles are subject to stricter location requirements. This makes adapting an overhead line system to an existing road layout particularly difficult.

[0003] From DE 724 215 C, an elastic catenary without support struts for electric railways with high speeds, especially for or in curves, is known.

[0004] From EP 2 631 107 B1, catenary contact lines of electric railways with a tensioning device and with at least two contact lines, each having a supporting cable and a contact wire, are known, wherein the tensioning device enables a simple and rapid laying of contact lines.

[0005] The object of the invention is to provide an overhead line that can be adapted to a given road layout and is continuously passable.

[0006] This object is achieved by an overhead line system having the features of claim 1.

[0007] Furthermore, the invention is based on the object of specifying a method for creating the overhead line system according to the invention.

[0008] This problem is solved by the method with the features of the subordinate method claim.

[0009] Advantageous further developments of the present invention can be found in the dependent subclaims.

[0010] The overhead line system according to the invention has a plurality of catenaries, each of which has a contact wire connected to a suspension cable by means of a plurality of connecting devices and which are arranged using parallel fields to form a continuously passable overhead line. Furthermore, the overhead line system according to the invention has at least one overhead line which is arranged in a curved section such that its vertical projection into a horizontal plane has a curved course. In addition, a curved parallel field is provided which is arranged in the curved section such that its vertical projection into the horizontal plane in the curved section follows the aforementioned curved course of the projection of the at least one overhead line. By way of example, the aforementioned overhead line system can be arranged along a curved section of a road.In this case, the aforementioned curved section can be arranged in such a way that the at least one overhead line is arranged substantially parallel to a roadway plane of the road course and substantially parallel to the road course itself. In this way, electrification of any curved road course is feasible.

[0011] Basically, a change of contact wires in pairs of catenaries of the multiple catenaries takes place in a parallel field. Catenaries arranged in pairs based on parallel fields to form a continuously passable overhead line are referred to below as a catenary pair. The change of contact wires in a catenary pair is usually carried out by raising a contact wire of a first catenary of the catenary pair from a level along the overhead line and lowering a contact wire of a second catenary of the catenary pair to a level along the overhead line. The contact wires in a catenary pair have the same polarity during normal operation. In an advantageous design variant, the overhead line system is bipolar, having two overhead lines of different polarity. This enables the electrification of road vehicles without return current flow across a lane.

[0012] An advantageous development provides that catenaries of the plurality of catenaries arranged in the curved section are designed such that a vertical axis running in a plane and a straight connecting line running in the same plane between the contact wire and the supporting cable of a respective catenary enclose an angle which is ≥ 9° and ≤ 70°. Said plane is a plane extending substantially perpendicular to a longitudinal direction of the at least one overhead line. In this way, a course of a contact wire can reliably follow a course of a traffic lane. Preferably, the contact wire and the supporting cable of each catenary arranged in the curved parallel field are spaced skewly from one another such that they are spaced apart by a horizontal distance component.

[0013] A further advantageous development provides that the contact wires and suspension cables of a first and a second catenary of the plurality of catenaries are arranged in an intersection region such that projections of the contact wire and suspension cable of the first catenary in a horizontal plane intersect projections of the contact wire and suspension cable in this horizontal plane. In this case, the contact wire and suspension cable of the first catenary are each arranged above the contact wire and suspension cable of the second catenary in the intersection region. This makes it possible to largely prevent a collision between intersecting contact wires and suspension cables.

[0014] Furthermore, an advantageous development provides that each catenary of the plurality of catenaries has a section along which several directly adjacent connecting devices of the respective catenary are spaced from one another such that their connection points with the contact wire have the same standard spacing from one another along the course of the contact wire. Furthermore, the aforementioned sections of the catenaries are arranged in the curved section such that connecting devices of different catenaries of a catenary pair have a minimum spacing from one another within a value range of half the standard spacing minus 100 cm to half the standard spacing plus 100 cm.The minimum distance between two connecting devices corresponds to the distance between an intersection point of an axis with the supporting cable of a first catenary, wherein this axis, starting from a connection point of a connecting device of a second catenary with an associated supporting cable of the second catenary, is essentially perpendicular to the course of the supporting cable of the second catenary at this connection point of the connecting device of the second catenary, and a connection point of a connecting device of the first catenary with the associated supporting cable of the first catenary, closest to this intersection point. This makes it possible to reliably prevent collisions between the connecting devices despite small distances between the catenaries of a catenary pair.

[0015] In a further advantageous embodiment, the standard spacing is set to a value within a range of 270 cm to 420 cm, preferably within a range of 270 cm to 330 cm. This makes it possible to reliably implement strict positional specifications regarding the position and spacing of the contact wires and suspension cables in the curved parallel field. Furthermore, in the event of a contact wire break, it can be prevented that a section of the wire collides with a vehicle traveling under the contact wire.

[0016] Furthermore, an advantageous development provides that connecting devices of the catenaries of different catenary pairs, which are each arranged based on the curved parallel field to a continuously passable overhead line, have a minimum distance of 20 cm, preferably 30 cm, from one another. The aforementioned minimum distance between connecting devices of catenaries of different catenary pairs is measured as described in connection with the minimum distance between connecting devices of different catenaries of a catenary pair. In particular, the minimum distance between connecting devices of the catenaries of different catenary pairs is independent of the previously mentioned standard distance. This makes it possible to achieve a high level of operational reliability. In the event of a contact wire breaking, for example, a short circuit with contact wires of opposite polarity can be largely prevented.

[0017] Furthermore, an advantageous development provides that a connecting device between a drivable contact wire and a supporting cable of a first catenary of a catenary pair has a bent section. This bent section is arranged such that, at each of its points, it has a clear distance of at least 5 cm from a drivable contact wire of a second catenary of the said catenary pair. A drivable contact wire is understood to be a contact wire which is arranged at a level of the overhead line such that electrical energy can be transmitted between this contact wire and a current collector, in particular a pantograph, of a vehicle. A non-drivable contact wire, on the other hand, is arranged above a level of the continuously drivable overhead line.In the latter case, the transmission of electrical energy to a pantograph is prevented due to the higher position of the contact wire. This refinement largely prevents an operational collision between a connecting device and a non-navigable contact wire. Furthermore, it enables a compact and operationally reliable arrangement of the overhead line system. Alternatively or additionally, it is conceivable for the aforementioned offset section to have a clear distance of at least 5 cm from a non-navigable contact wire or a suspension cable of one of the several catenaries at each of its points. Furthermore, the offset connecting device is preferably connected to a contact wire which, compared to another contact wire of the same catenary, is arranged on the inside, i.e. along a section with a greater curvature.

[0018] Furthermore, an advantageous development provides that a connecting device between a contact wire and a suspension cable of a first catenary of a catenary pair has a curved section. This curved section is arranged such that each of its points has a clear distance of at least 5 cm from a suspension cable of a second catenary of the said catenary pair. This makes it possible to implement a cost-effective adaptation of the overhead line system to existing track layouts. This development largely prevents an operational collision between a connecting device and a suspension cable. Alternatively or additionally, it is conceivable for the said curved section to have a clear distance of at least 5 cm at each of its points from a contact wire or a suspension cable of one of the several catenaries.

[0019] A further advantageous development provides that a connecting device of the plurality of connecting devices connects a contact wire and a suspension cable of a catenary of the plurality of catenary systems to one another in such a way that the course of the connecting device, starting from the contact wire and reaching the suspension cable, follows a straight connecting line between the contact wire and the suspension cable. In the present context, the fact that the course of the connecting device follows a straight connecting line should be understood to mean that the course of the connecting device is free of offsets, bends, or curvatures that deviate significantly from the straight connecting line.Minor curvatures caused, for example, by a material of the connecting device or a way of connecting the connecting device to the contact wire or the suspension cable should nevertheless be regarded as following the straight connecting line.

[0020] Furthermore, in an advantageous development, the overhead line system comprises a mast system with a plurality of holding devices and a plurality of masts. The contact wires and the supporting cables of the plurality of catenaries are directly connected to at least one of the plurality of holding devices. Furthermore, in the curved section, a contact wire and a supporting cable of one of the plurality of catenaries are connected to one of the plurality of holding devices and a mast of the mast system in such a way that the greater the curvature of the curved section, the smaller the vertical support point distance between this contact wire and this supporting cable on this mast.

[0021] In an advantageous embodiment, the support point spacing along a straight section of the overhead line system is approximately 170 cm. If the curved section is viewed as a circular arc, its curvature decreases with a reduction in the associated circle radius. Starting from the aforementioned support point spacing along the straight section, the support point spacing in the curved section, for a circle radius of approximately 800 m, has a value from a range of 60 cm up to a maximum of 100 cm. Depending on the curvature of the curved section and the angle between the respective contact wire and the respective suspension cable of a catenary of the multiple catenaries, the vertical support point spacing can be varied such that it is increased, starting from a minimum value of approximately 60 cm for a radius of curvature of 800 m up to a value of 170 cm for a straight section.In this way, it is possible to keep the lateral offset, which occurs when the contact wires of a catenary system are raised or lowered, small and cost-effectively.

[0022] In an advantageous embodiment, it is proposed that this vertical support point distance between the contact wire and the suspension cable on the said mast be at least 60 cm and at most 120 cm. In practice, it has been shown that this allows the lateral offset of the contact wires during raising or lowering to be kept small in an economically efficient manner.

[0023] An advantageous embodiment provides that catenaries of a catenary pair are connected to the mast system by means of different holding devices of the plurality of holding devices, spaced apart from one another by a holder spacing. In this case, a connecting device of a catenary of the catenary pair, which is arranged along a course of the catenary's contact wire in the curved section directly following the holding device of the mast system connected to the contact wire, has a distance from this holding device along the course of the contact wire from a range of values ​​that does not fall below the holding distance plus 70 cm and does not exceed the holder spacing plus 220 cm. The holder spacing can, for example, be a value from a range of values ​​from 1 m up to 10 m. In particular, this holder spacing must be considered separately from the standard distance.In this way, the position of the catenary wires relative to the road layout can be easily adapted.

[0024] A further advantageous embodiment provides that masts are arranged in the curved section such that the masts to which one of the catenary systems of the plurality of catenary systems is connected have a mast spacing of 30 m to 50 m, preferably 30 m to 40 m, from one another. In this way, the catenary systems can be arranged reliably and safely in the curved section.

[0025] An advantageous development provides that, for the purpose of a continuously electrified overhead line between two catenaries of a catenary pair, a power connection device is provided, which connects a passable section of a contact wire of a first catenary of the catenary pair with a non-passable section of a contact wire of a second catenary of the catenary pair. This is achieved by arranging this power connection device along a section of the supporting cable of the first catenary and along a section of the supporting cable of the second catenary such that the power connection device has a length along this respective section which corresponds to a maximum temperature-related change in length of the contact wire of the first or second catenary.Furthermore, this is achieved by providing a loop with a section length of at least 130 cm, preferably at least 175 cm, between the supporting cables of the first and second catenary. In the present context, a maximum temperature-related change in length is understood to mean the maximum expected linear expansion of the respective contact wire due to an operating temperature range, a linear expansion coefficient of the contact wire, and a post-tensioning length of the contact wire. The operating temperature range is determined by the ambient temperatures typically expected. A post-tensioning length of the contact wire is measured as the length between two guy masts. The linear expansion coefficient depends essentially on the choice of contact wire material.This largely prevents a collision of the power connection device with components of the catenary system or with vehicles or their pantographs due to a temperature-related change in the length of the power connection device.

[0026] An advantageous embodiment provides for a power connection device to be provided between two catenaries of a catenary pair for the purpose of a continuously electrified overhead line. This power connection device connects a passable section of a contact wire of a first catenary of the catenary pair with a non-passable section of a contact wire of a second catenary of the catenary pair. This is achieved by arranging the power connection device, starting from the passable section of the contact wire, along a section of the supporting cable of the first catenary over a length of at least 50 cm, preferably at least 75 cm. This length corresponds approximately to a maximum temperature-related change in length of the contact wire of the corresponding catenary in a temperate climate zone with a contact wire made of copper.The power connection device then has a loop between the supporting cables of the first and second catenary of the catenary pair, with a section length of the power connection device of at least 130 cm, preferably of at least 165 cm. Furthermore, the power connection device is arranged along a section of the supporting cable of the second catenary over a length of at least 50 cm, preferably of at least 75 cm. As already described above, this length corresponds approximately to a maximum temperature-related change in length of the contact wire of the corresponding catenary in a temperate climate zone with a contact wire made of copper. Finally, the power connection wire is guided from the supporting cable of the second catenary to the non-navigable section of the contact wire of the second catenary.In this way, an electrical connection of the contact wires of a pair of catenary systems can be realized in a reliable manner. Operational reliability can be further improved by arranging the power connection device starting from a connecting device connected to the overhead contact wire.

[0027] The overhead line system according to the invention can be created by means of the method according to the invention.

[0028] For this purpose, several catenaries, each having a contact wire connected to a suspension cable by means of several connecting devices, are arranged using parallel fields to form a continuously drivable overhead line. Furthermore, at least one overhead line is arranged in a curved section such that its vertical projection into a horizontal plane has a curved course. Furthermore, at least one curved parallel field is arranged in the curved section such that its vertical projection into the horizontal plane in the curved section follows the aforementioned curved course of the projection of the at least one overhead line. This enables the creation of a continuously drivable overhead line along a predetermined road course.

[0029] In an advantageous development of the method, the at least one overhead line is positioned above a roadway such that the contact wires of the plurality of catenaries run substantially parallel to a lane center. Furthermore, at least one straight parallel field is provided, the vertical projection of which into the horizontal plane follows a substantially straight course of a projection of the at least one overhead line into the horizontal plane. In addition, a position of contact wires along the curved parallel field is arranged offset transversely in the horizontal direction depending on a curvature of the curved section relative to a position of contact wires along the straight parallel field. In particular, the said offset is dependent on a curvature of the curved section such that the more curved the curved section is, the greater the offset is selected. The curved section preferably describes a circular arc.This circular arc has a curvature that depends on the associated radius. For example, the offset mentioned for a radius of approximately 800 m is at least 5 cm, preferably at least 10 cm. This offset is reduced as the radius of curvature increases. For example, it is conceivable that this offset is reduced linearly. In this way, a lateral displacement of the contact wires, which occurs, for example, when the contact wires are raised or lowered or during operation, can be easily compensated. Preferably, the contact wires are arranged inwardly along the curved parallel field, towards a more pronounced curvature, offset in the transverse horizontal direction. This has proven effective in meeting the strict positioning specifications for the non-track-bound electrification of road vehicles.

[0030] In an advantageous embodiment, several straight parallel fields are provided. The contact wires along the curved parallel field are arranged transversely offset in the horizontal direction relative to the lane center compared to the contact wires along all of the several straight parallel fields.

[0031] The properties, features, and advantages of the invention described above, as well as the manner in which they are achieved, are explained in more detail in conjunction with the figures in the following description of an embodiment of the invention. Where appropriate, the same reference numerals are used in the figures for the same or corresponding elements of the invention. The embodiment serves to explain the invention and does not limit the invention to the combinations of features specified therein, including with regard to functional features. Furthermore, all features specified in the embodiment can be considered in isolation and combined as appropriate with the features of any claim.

[0032] They show: FIG 1a shows a side view of an embodiment of the overhead line system according to the invention as a schematic representation and an illustration of an example of the method according to the invention; FIG 1b shows the embodiment of the overhead line system shown in a schematic representation as a projection in a horizontal plane and an illustration of the example of the method; FIG 2 shows a highly simplified schematic representation, which shows, by way of example and not to scale, an arrangement of connecting devices relative to one another and relative to holding devices of a mast system; FIG 3 shows a sectional plane through the FIG 1a und FIG 1b shown overhead line system perpendicular to a longitudinal direction of an overhead line and an example of a curved connecting device; FIG 4 shows a further sectional plane through the overhead line system perpendicular to a longitudinal direction of an overhead line and an example of a cranked connecting device for use with an inclination of 50° to 70°, supplemented by an exemplary schematic representation of a layer of contact wires and associated suspension cables in a section through a straight parallel field to illustrate the example of the method according to the invention; FIG 5 shows another further sectional plane through the FIG 1a und FIG 1b Figure 6 shows an overhead line system perpendicular to a longitudinal direction of an overhead line and an example of a straight connecting device; Figure 6 shows an embodiment of a current connecting device in a schematic representation.

[0033] FIG 1a und FIG 1b show a curved section of an overhead line system 10, which is designed to provide electrical energy for an electrically powered vehicle by means of two overhead lines 12a, 12b. In the present exemplary embodiment, the overhead line system 10 has two overhead lines 12a, 12b of different polarities. Furthermore, the overhead line system 10 has a plurality of catenaries 16, 22, 30, 36, each of which has a contact wire 20, 26, 34, 40 connected to a supporting cable 18, 24, 32, 38 by means of a plurality of connecting devices 42, 44, 46, 47. The plurality of catenaries 16, 22, 30, 36 are arranged by means of parallel fields 48, 50 to form a first continuously passable overhead line 12a and a second continuously passable overhead line 12b of different polarities.In the present exemplary embodiment, the contact wires 20, 26, 34, 40 and supporting cables 18, 24, 32, 38 of each of the multiple catenaries 16, 22, 30, 36 of the overhead line system 10 have a predetermined tensile stress. This is generated by the fact that the multiple catenaries 16, 22, 30, 36 of the overhead line system 10 are guided at regular intervals to so-called guy masts 88. In the present exemplary embodiment, the contact wires 20, 26, 34, 40 and supporting cables 18, 24, 32, 38 have a length of approximately 1.5 km, after which they are guyed. This length is also referred to in technical circles as the post-tensioning length. In order to obtain a continuously passable overhead line 12a, 12b, the plurality of catenaries 16, 22, 30, 36 of the overhead line system 10 are arranged using parallel fields 48, 50 to the first continuously passable overhead line 12a and the second continuously passable overhead line 12b.Furthermore, the multiple catenaries 16, 22, 30, 36 of the overhead line system 10 are suspended from a mast system 72 of the overhead line system 10. The aforementioned guy masts 88, along with further masts 76a, 76b, and several holding devices 74, are components of the mast system 72. In particular, the components of the mast system 72 are guy masts 88, masts 76a, 76b, and holding devices 74, which are already known to a specialist.

[0034] In addition to the FIG 1a und FIG 1b In addition to the curved section of the overhead line system 10 shown, the overhead line system 10 has further sections not shown in detail. FIG 1a shows a side view of the curved section. It schematically shows how a first pair of catenaries 14 and a second pair of catenaries 28 are connected to the mast system 72 by means of the multiple holding devices 74. FIG 1b shows a vertical projection of the curved section into a horizontal plane. In this horizontal plane, the first overhead line 12a and the second overhead line 12b have a curved course. It also illustrates FIG 1b In the present exemplary embodiment, the two overhead lines 12a, 12b are positioned above a roadway in such a way that the contact wires 20, 26, 34, 40 of the two aforementioned pairs of catenaries 14, 28 run, in the curved section, essentially parallel to a lane center 84 of a roadway (not shown in detail). In the present exemplary embodiment, the curved course of the lane center 84 corresponds to an arc of a circle, which runs at a radial distance of approximately 800 m from the circle center. In the present exemplary embodiment, the two overhead lines 12a, 12b follow the lane center 84.

[0035] Furthermore, FIG 1a und FIG 1b a curved parallel field 48. The curved parallel field 48 is arranged in the curved section such that its vertical projection into the FIG 1b shown horizontal plane follows the aforementioned curved course of the projection of the overhead lines 12a, 12b into this horizontal plane and thus the lane center 84. Furthermore, FIG 1b schematically shows that the first pair of catenaries 14, consisting of the first catenary 16 and the second catenary 22, is arranged based on the curved parallel field 48 to the continuously passable first overhead line 12a. The first catenary 16 has a first contact wire 20 and a first suspension cable 18. The second catenary 22 has a second contact wire 26 and a second suspension cable 24. Furthermore, FIG 1b that a second pair of catenaries 28 is arranged on the continuously passable second overhead line 12b based on the parallel field 48. The second pair of catenaries 28 has a third catenary 30 and a fourth catenary 36. The third catenary 30 has a third contact wire 34 and a third suspension cable 32. The fourth catenary 36 has a fourth contact wire 40 and a fourth suspension cable 38.

[0036] In the present exemplary embodiment, the contact wires 20, 34 and the supporting cables 18, 32 of the first and third catenaries 16, 30 are each directly connected to the first-type masts 76a by means of one of the plurality of holding devices 74. Furthermore, the contact wires 26, 40 and the supporting cables 24, 38 of the second and fourth catenaries 22, 36 are each directly connected to the second-type masts 76b by means of one of the plurality of holding devices 74. By means of the holding devices 74, the respective contact wires 20, 26, 34, 40 and supporting cables 18, 24, 32, 38 are connected to the corresponding masts 76a, 76b in such a way that a vertical support point distance 78 between the contact wire 20, 26, 34, 40 and supporting cable 18, 24, 32, 38 of the respective catenary 16, 22, 30, 36 on the corresponding mast of the first type 76a or of the second type 76b in the circular arc considered in the present embodiment with a circle radius of approximately 800 m is a value of 60 cm to 80 cm. FIG 1a shows further that the masts of the first type 76a in the present embodiment have a mast spacing 90a of 40 m to 50 m inclusive. Furthermore, FIG 1a that the masts of the second type 76b have a mast spacing 90b of 40 m up to and including 50 m from one another. The spacing between masts of the first type 76a and the second type 76b arranged directly next to one another is approximately 2 m in the present exemplary embodiment. In addition, a holder spacing 92 between a holding device 74 (not shown in detail), which is connected to the mast of the first type 76a, and another holding device 74 (not shown in detail), which is connected to the mast of the second type 76b arranged 2 m apart from the mast of the first type 76a, is the same, namely 2 m.

[0037] Along the curved section, the catenaries 16, 22, 30, 36 of the two catenary pairs 14, 28 are designed such that the respective contact wires 20, 26, 34, 40 and the respective suspension cables 18, 24, 32, 38 are arranged skew relative to one another. The contact wire 20, 26, 34, 40 and the suspension cable 18, 24, 32, 38 of the respective catenary 16, 22, 30, 36 form an angle 56, the value of which ranges from ≥ 9° to ≤ 70° (cf. FIG 3 and FIG 4 ). This angle 56 results in a plane which runs perpendicular to a longitudinal direction of the overhead lines 12a, 12b and in which a vertical axis 52 and a straight connecting line 54 run between the respective contact wire 20, 26, 34, 40 and the respective supporting cable 18, 24, 32, 38 of the respective catenary 16, 22, 30, 36. This angle 56 is shown by way of example in a schematic representation in the figure FIG 3 which also shows an example of a curved connecting device 44.

[0038] How to continue in FIG 1b schematically shown, in the curved section, vertical projections of the contact wires 20, 26, 34, 40 and supporting cables 18, 24, 32, 38 of the two pairs of catenaries 14, 28 cross into the FIG 1b shown horizontal plane in crossing regions 58. In the present exemplary embodiment, the third contact wire 34, the third supporting cable 32, the second contact wire 26 and the second supporting cable 24 are arranged in crossing regions 58 such that the third supporting cable 32 and the third contact wire 34 are arranged above the second contact wire 26 and the second supporting cable 24. Furthermore, in the present exemplary embodiment, the first contact wire 20 and the first supporting cable 18 are arranged above the fourth supporting cable 38 and the fourth contact wire 40 in a crossing region 58 in which they cross the fourth contact wire 40 and the fourth supporting cable 38.

[0039] The several connecting devices 42, 44, 46, 47 of the chain systems 16, 22, 30, 36 are already known to the expert and for reasons of clarity in FIG 1a und FIG 1b shown merely as an example. Such connecting devices 42, 44, 46, 47 are also known to those skilled in the art as "hangers."

[0040] FIG 2 shows an example of an excerpt from which FIG 1a und FIG 1b shown curved section in a highly simplified, schematic representation to explain the arrangement of the plurality of connecting devices 42, 44, 46, 47 relative to one another and relative to the mast system 72. The plurality of connecting devices 42, 44, 46, 47 of one of the catenaries 16, 22, 30, 36 are connected to the contact wire 20, 26, 34, 40 of the respective catenary 16, 22, 30, 36 in such a way that connection points 66 of immediately adjacent connecting devices of the plurality of connecting devices 42, 44, 46, 47 with the respective contact wire 20, 26, 34, 40 have a standard distance 64 of approximately 300 cm from one another. This standard spacing 64 is realized along each catenary 16, 22, 30, 36 in a section which runs between the masts 76a, 76b.By way of derogation, a connection point 66 of a connecting device of the plurality of connecting devices 42, 44, 46, 47 of one of the catenaries 16, 22, 30, 36, which is arranged along a path of the associated contact wire 20, 26, 34, 40 directly following a holding device 74 of the mast system 72, has a distance 68 of 270 cm from this holding device 74 along a path of the corresponding contact wire 20, 26, 34, 40. This distance 68 results from the holder spacing 92 plus a value of 70 cm. Furthermore, in the present exemplary embodiment, connecting devices 42, 44, 46, 47 of different catenaries 16, 22, 30, 36 of one of the catenary pairs 14, 28 have a minimum distance 60 of 130 cm from each other in the curved section. This minimum distance 60 results from halving the standard distance 64 of 300 cm less a value of 20 cm.In addition, in the present embodiment, connecting devices 42, 44, 46, 47 of chain systems 16, 22, 32, 36 of different chain system pairs 14, 28 have a minimum distance 62 of 30 cm from each other.

[0041] In FIG 3 A curved connecting device 44 is schematically shown as an example for one of the plurality of connecting devices 42. The curved connecting device 44 shown is part of the first catenary 16 and connects the first supporting cable 18 to the first contact wire 20. The curved connecting device 44 has a curved section which, at each of its points, has at least a clear distance 70 of 5 cm from the second supporting cable 24. FIG 3 As already described above, it shows a plane that runs perpendicular to a longitudinal direction of the overhead lines 12a, 12b. In this plane, a straight connecting line 54 between the first contact wire 20 and the first suspension cable 18 and a vertical axis 52 also run. For example, the straight connecting line 54 and the vertical axis 52 enclose an angle 56 of approximately 56°.

[0042] FIG 4 shows a further example of the plurality of connecting devices 42 in the form of a cranked connecting device 46. The cranked connecting device 46 has a cranked section and connects a drivable section of the first contact wire 20 to the first suspension cable 18. The first contact wire 20 is arranged inwardly along the curved section. The cranked section of the cranked connecting device 46 is arranged such that, at each of its points, it has at least a clear distance 70 of 5 cm from a non-drivable section of the second contact wire 26. The non-drivable section of the second contact wire 26 is arranged higher than the drivable section of the first contact wire 20, so that a transfer of electrical energy to a current collector (not shown in detail), in particular to a pantograph (not shown in detail), is prevented.

[0043] Furthermore, FIG 4 an arrangement of the contact wires 20, 26, 34, 40 along the curved parallel field 48 relative to the lane center 84. Also in FIG 4 schematically shows the arrangement of contact wires of a straight parallel field 50 of the overhead line system 10 in dashed representation. In contrast to the curved parallel field 48, a vertical projection of a straight parallel field 50 into a horizontal plane follows a substantially straight course of a projection of the overhead lines 12a, 12b into this horizontal plane. FIG 4 It is illustrated that the contact wires 20, 26, 34, 40 along the curved parallel field 48, which follows a circular arc with an associated circle radius of approximately 800 m, are arranged offset transversely in the horizontal direction 86 by approximately 10 cm relative to the lane center 84, compared to contact wires along the straight parallel field 50.

[0044] Furthermore, in FIG 5 A further example of one of the plurality of connecting devices 42 is shown schematically in the form of a straight connecting device 47. This straight connecting device 47 is intended to be arranged in the curved section outside the curved parallel field 48. For example, the straight connecting device 47 connects the first supporting cable 18 to the first contact wire 20 and follows a straight connecting line 54 between the first contact wire 20 and the first supporting cable 18. By means of the straight connecting device 47 shown, a space-efficient arrangement is enabled, in which collisions with contact wires 26, 34, 40 or supporting cables 24, 32, 38 of the further catenaries 22, 30, 36 can be prevented.

[0045] FIG 6 shows, by way of example, a power connection device 80 of the overhead line system 10, which is designed to establish an electrical connection between contact wires 20, 26, 34, 40 of a pair of catenaries 14, 28. In total, six power connection devices 80 are provided in the present exemplary embodiment, two of which are shown by way of example in FIG 1bare shown schematically. By means of the six power connection devices 80, the contact wires 20, 26, 34, 40 of a catenary pair 14, 28 are electrically connected to one another, once shortly before and once shortly after the masts 76a, 76b, between which the curved parallel field 48 is arranged. In addition, a power connection device 80 is provided for the purpose of potential equalization in an intersection area 58 in which contact wires 20, 26, 34, 40 of different catenary pairs 14, 28 cross. All power connection devices 80 are essentially based on the same structure, which is explained below using the first catenary pair 14 as an example.

[0046] In the present exemplary embodiment, the power connection device 80 comprises a flexible electrical conductor. The flexible electrical conductor of the power connection device 80 is arranged, starting from the traveled section of the second contact wire 26, along a section of the second support cable 24 over a length of approximately 75 cm along this section. The flexible electrical conductor of the power connection device 80 then has a loop 82 with a section length of approximately 165 cm. Following the loop 82, the flexible electrical conductor of the power connection device 80 is arranged along a section of the first support cable 18 over a length of 75 cm along this section. Following the latter section, the first power connection device 80 is then guided to the non-traveled section of the first contact wire 20 and electrically connected to it.A length of the section of the electrical conductor of the power connection device 80 along the respective suspension cable 18, 24 corresponds to a maximum temperature-related length change of a contact wire 20, 26, 34, 40 of a pair of catenaries 14, 28. To determine this length, the post-tensioning length of approximately 1.5 km realized in the present exemplary embodiment, a typical operating temperature range in a Central European climate zone, and a contact wire made of copper are used. Different post-tensioning lengths, operating temperature ranges, or contact wire materials lead to a different maximum temperature-related length change.

Claims

1. Overhead line system (10) for the provision of electrical energy for an electrically driven vehicle by means of an overhead line (12a, 12b), having - multiple catenary systems (16, 22, 30, 36), each of which has a contact wire (20, 26, 34, 40) connected to a carrying cable (18, 24, 32, 38) by means of multiple connection devices (42, 44, 46, 47) and which are arranged on the basis of parallel zones (48, 50) to form a continuously accessible overhead line (12a, 12b); - at least one overhead line (12a, 12b), which is arranged in a curvature section such that the vertical projection thereof in a horizontal plane has a curved profile; characterised in that the overhead line system (10) has at least one curved parallel zone (48), which is arranged in the curvature section such that the vertical projection thereof in the horizontal plane in the curvature section follows the said curved profile of the projection of the at least one overhead line (12a, 12b).

2. Overhead line system (10) according to one of the preceding claims, characterised in that catenary systems (16, 22, 30, 36) of the multiple catenary systems (16, 22, 30, 36) arranged in the curvature section are designed such that a vertical axis (52) running in a plane and a straight connecting line (54) running in the same plane between the contact wire (20, 26, 34, 40) and the carrying cable (18, 24, 32, 38) of a respective catenary system (16, 22, 30, 36) confine an angle (56) which is ≥ 9° and ≤ 70°, wherein this plane substantially extends perpendicular to a direction of longitudinal extension of the at least one overhead line (12a, 12b).

3. Overhead line system (10) according to one of the preceding claims, characterised in that - the contact wires (20, 26, 34, 40) and carrying cables (18, 24, 32, 38) of a first and of a second catenary system of the multiple catenary systems (16, 22, 30, 36) are arranged in an intersection area (58) such that projections of the contact wire (20, 26, 34, 40) and of the carrying cable (18, 24, 32, 38) of the first catenary system (16, 22, 30, 36) in a horizontal plane intersect projections of the contact wire (20, 26, 34, 40) and of the carrying cable (18, 24, 32, 38) in the horizontal plane; and - the contact wire (20, 26, 34, 40) and the carrying cable (18, 24, 32, 38) of the first catenary system (16, 22, 30, 36) are arranged in the intersection area (58) in each case above the contact wire (20, 26, 34, 40) and the carrying cable (18, 24, 32, 38) of the second catenary system (16, 22, 30, 36).

4. Overhead line system (10) according to one of the preceding claims, characterised in that - each catenary system of the multiple catenary systems (16, 22, 30, 36) has a section, along which multiple directly adjacent connection devices (42, 44, 46, 47) of the respective catenary system (16, 22, 30, 36) are spaced apart from one another, such that the connection points (66) thereof to the contact wire (20, 26, 34, 40) along the profile of the contact wire (20, 26, 34, 40) have the same standard spacing (64) from one another; - the said sections of the catenary system (16, 22, 30, 36) are arranged in the curvature section such that connection devices (42, 44, 46, 47) of different catenary systems (16, 22, 30, 36) of a catenary system pair (14, 28), which is arranged on the basis of the curved parallel zone (48) to form a continuously accessible overhead line (12a, 12b), have a minimum spacing (60) from one another taken from a value range of between half the value of the standard spacing (64) less 100 cm and half the value of the standard spacing (64) plus 100 cm.

5. Overhead line system (10) according to claim 4, characterised in that the standard spacing (64) has a value taken from a value range of between 270 cm and 420 cm, preferably from a value range of between 270 cm and 330 cm.

6. Overhead line system (10) according to one of the preceding claims, characterised in that connection devices (42, 44, 46, 47) of the catenary system (16, 22, 30, 36) of different catenary system pairs (14, 28), which in each case are arranged on the basis of the curved parallel zone (48) to form a continuously accessible overhead line (12a, 12b), have a minimum spacing (62) from one another of 20 cm, preferably of 30 cm.

7. Overhead line system (10) according to one of the preceding claims, characterised in that a connection device (42, 44, 46, 47) between an accessible contact wire (20, 26, 34, 40) and a carrying cable (18, 24, 32, 38) of a first catenary system (16, 22, 30, 36) of a catenary system pair (14, 28), which on the basis of the curved parallel zone (48) is arranged to form a continuously accessible overhead line (12a, 12b), has a cranked section which is arranged such that the cranked section in each of its points has a clear spacing (70) of at least 5 cm from an inaccessible contact wire (20, 26, 34, 40) of a second catenary system (16, 22, 30, 36) of the said catenary system pair (14, 28).

8. The overhead line system (10) according to one of the preceding claims, characterised in that a connection device (42, 44, 46, 47) between a contact wire (20, 26, 34, 40) and a carrying cable (18, 24, 32, 38) of a first catenary system (16, 22, 30, 36) of a catenary system pair (14, 28), which on the basis of the curved parallel zone (48) is arranged to form a continuously accessible overhead line (12a, 12b), has a curved section which is arranged such that the curved section in each of its points has a clear spacing (70) of at least 5 cm from a carrying cable (18, 24, 32, 38) of a second catenary system (16, 22, 30, 36) of the said catenary system pair (14, 28).

9. Overhead line system (10) according to one of the preceding claims, characterised in that a connection device (47) of the multiple connection devices (42, 44, 46) connects a contact wire (20, 26, 34, 40) and a carrying cable (18, 24, 32, 38) of a catenary system of the multiple catenary systems (16, 22, 30, 36) to one another such that the profile of the connection device (47), starting from the contact wire (20, 26, 34, 40) through to the carrying cable (18, 24, 32, 38), follows a straight connecting line (54) between the contact wire (20, 26, 34, 40) and the carrying cable (18, 24, 32, 38).

10. Overhead line system (10) according to one of the preceding claims, characterised in that< / b> - a mast system (72) with multiple retaining devices (74) is provided and the contact wires (20, 26, 34, 40) as well as the carrying cables (18, 24, 32, 38) of the multiple catenary systems (16, 22, 30, 36) are directly connected to at least one of the multiple retaining devices (74); - a contact wire (20, 26, 34, 40) and a carrying cable (18, 24, 32, 38) of one of the multiple catenary systems (16, 22, 30, 36) in the curvature section are connected to one of the multiple retaining devices (74) and a mast (76a, 76b) of the mast system (72) such that a vertical support point spacing (78) between said contact wire (20, 26, 34, 40) and said carrying cable (18, 24, 32, 38) at this mast (76a, 76b) is, as a function of a curvature of the curvature section, smaller the greater the curvature of the curvature section.

11. Overhead line system (10) according to claim 10, characterised in that - catenary systems (16, 22, 30, 36) of a catenary system pair (14, 28), which on the basis of the curved parallel zone (48) is arranged to form a continuously accessible overhead line (12a, 12b), are connected, by means of different retaining devices of the multiple retaining devices (74), to the mast system (72), spaced apart from one another by a retaining spacing (92); and - a connection device (42, 44, 46, 47) of a catenary system (16, 22, 30, 36) of the catenary system pair (14, 28), which is arranged directly following the retaining device (74) of the mast system (72) connected to the contact wire (20, 26, 34, 40) along a profile of the contact wire (20, 26, 34, 40) of the catenary system (16, 22, 30, 36) in the curvature section, has, along the profile of the contact wire (20, 26, 34, 40), a spacing (68) from said retaining device (74) taken from a value range that is not less than the size of the retaining spacing (92) plus 70 cm and is not greater than the size of the retaining spacing (92) plus 220 cm.

12. Overhead line system (10) according to claim 10 or 11, characterised in that masts (76a, 76b) in the curvature section are arranged such that those masts (76a, 76b) to which one of the catenary systems of the multiple catenary systems (16, 22, 30, 36) is connected have a mast spacing (90a, 90b) from one another of between 30 m and 50 m, preferably of between 35 m and 40 m.

13. Overhead line system (10) according to one of the preceding claims, characterized in that for the purpose of a continuously electrified overhead line (12a, 12b) between two catenary systems (16, 22, 30, 36) of a catenary system pair (14, 28), which on the basis of the curved parallel zone (48) is arranged to form a continuously accessible overhead line (12a, 12b), a power connection device (80) is provided, which connects an accessible section of a contact wire (20, 26, 34, 40) of a first catenary system (16, 22, 30, 36) of the catenary system pair (14, 28) to an inaccessible section of a contact wire (20, 26, 34, 40) of a second catenary system (16, 22, 30, 36) of the catenary system pair (14, 28), in that said power connection device (80) - is arranged along a section of the carrying cable (18, 24, 32, 38) of the first catenary system (16, 22, 30, 36) and along a section of the carrying cable (18, 24, 32, 38) of the second catenary system (16, 22, 30, 36) such that the power connection device (80) along said respective section has a length that corresponds to a maximum temperature-related change in length of a contact wire (20, 26, 34, 40) of the first or of the second catenary system (16, 22, 30, 36); - between the carrying cables (18, 24, 32, 38) of the first and of the second catenary system (16, 22, 30, 36) has a loop (82) with a section length of at least 130 cm, preferably of at least 175 cm.

14. Method for the creation of an overhead line system (10) for the provision of electrical energy for an electrically driven vehicle according to one of the preceding claims, in which - multiple catenary systems (16, 22, 30, 36), each of which has a contact wire (20, 26, 34, 40) connected to a carrying cable (18, 24, 32, 38) by means of multiple connection devices (42, 44, 46, 47), are arranged on the basis of parallel zones (48, 50) to form a continuously accessible overhead line (12a, 12b); and - at least one overhead line (12a, 12b) in a curvature section is arranged such that the vertical projection thereof in a horizontal plane has a curved profile; - in the curvature section at least one curved parallel zone (48) is arranged such that the vertical projection thereof in the horizontal plane in the curvature section follows the said curved profile of the projection of the at least one overhead line (12a, 12b).

15. Method according to claim 14, in which - the at least one overhead line (12a, 12b) is positioned above a carriageway such that the contact wires (20, 26, 34, 40) of the multiple catenary systems (16, 22, 30, 36) run substantially in parallel to the centre of a traffic lane (84) ; - at least one straight parallel zone (50) is provided, the vertical projection of which in the horizontal plane follows a substantially straight profile of the projection of the at least one overhead line (12a, 12b) in the horizontal plane; - a position of contact wires (20, 26, 34, 40) along the curved parallel zone (48) is arranged offset as a function of a curvature of the curvature section relative to a position of contact wires (20, 26, 34, 40) along the straight parallel zone (50) in the transverse horizontal direction (86).