WO2017007359A1 - Technique pour générer de l'énergie électrique à partir d'un espace de joint de rail - Google Patents

Technique pour générer de l'énergie électrique à partir d'un espace de joint de rail Download PDF

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Publication number
WO2017007359A1
WO2017007359A1 PCT/RU2015/000420 RU2015000420W WO2017007359A1 WO 2017007359 A1 WO2017007359 A1 WO 2017007359A1 RU 2015000420 W RU2015000420 W RU 2015000420W WO 2017007359 A1 WO2017007359 A1 WO 2017007359A1
Authority
WO
WIPO (PCT)
Prior art keywords
transducer
electrical
electrical energy
electric generator
electric power
Prior art date
Application number
PCT/RU2015/000420
Other languages
English (en)
Inventor
Ivan Vladimirovich KOLCHIN
Original Assignee
Siemens Aktiengesellschaft
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 Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Priority to PCT/RU2015/000420 priority Critical patent/WO2017007359A1/fr
Publication of WO2017007359A1 publication Critical patent/WO2017007359A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L1/00—Devices along the route controlled by interaction with the vehicle or train
    • B61L1/02—Electric devices associated with track, e.g. rail contacts
    • B61L1/04—Electric devices associated with track, e.g. rail contacts mechanically actuated by a part of the vehicle
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B11/00—Rail joints
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B26/00—Tracks or track components not covered by any one of the preceding groups
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
    • H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators

Definitions

  • the present invention is related to electric power generation and more particularly to electric power generation from a rail joint gap. Present day railways are dependent on electric power.
  • Electric power is not just required to run the trains but also required to power several devices and equipments that form the part of the railway network for example traffic signals, communication equipments, different sensors placed beside the railroads, also referred to as railway tracks or rail tracks. These devices and equipments are physically dispersed throughout the rail track network and are required to be placed even in remotely located areas in the rail network. Powering these devices and equipments needs a large amount of energy.
  • Such devices and equipments are generally powered by electric power obtained from the main electric supply for electrified tracks i.e. those tracks which are well equipped with an electrification system such as overhead electrical power lines.
  • an electrification system such as overhead electrical power lines.
  • powering such devices and equipments in those parts of the rail network which are non-electrified is a big challenge and solving it often requires setting up additional power supply lines extending to different remotely located rail tracks just to power these devices and equipments. This is an additional infrastructural burden on the rail network.
  • the object of the present technique is to generate power locally at the site of location of such devices and equipments. This will at least partially provide electric power for such devices and equipments and thus reduce the burden on the main power supply lines. Furthermore, in non- electrified parts of a rail network, the present technique will at least partly obviate the requirement of setting up additional power supply lines and thus reduce the
  • a system for generating electric power from a rail joint gap is provided.
  • the system includes an electric generator and an electric power receiving unit.
  • the electric generator is positioned in the rail joint gap.
  • the electric generator includes a contact surface configured to contact a wheel of a passing train and to receive mechanical energy from the wheel of the passing train.
  • the electric generator is configured to produce electrical energy from the mechanical energy so received by the contact surface of the electric generator.
  • the electric power receiving unit is electrically connected to the
  • electric generator and configured to receive the electrical energy from electric generator.
  • the electric power is generated from the mechanical energy by using the electric generator.
  • the electric generator in the system is such that the wheel of the passing train comes in direct contact with the electric generator at the contact surface of the electric generator.
  • the mechanical energy from the wheel of the passing train is received directly by the electric generator and thus more mechanical energy is available to the electric generator compared to a technique wherein the wheel of the passing train does not come in direct contact of the electric
  • the energy so generated from the rail joints may be used to store for future use or may be directly used to power equipments situated along the railroad.
  • the electric generator includes a base material with a three dimensional structure and the electrical transducer is embedded in the three dimensional (3D) structure of the base material.
  • the 3D structure physically protects the electrical transducer.
  • the 3D structure may also help to maintain the electrical
  • the base material may be flexible and/or elastic and thus the electrical transducer is
  • At least a part of the contact surface is a surface of the three dimensional
  • the contact surface is entirely formed of the surface of the three dimensional structure.
  • At least a part of the contact surface is a surface of the electrical transducer.
  • the contact surface is entirely formed of the surface of the electrical transducer.
  • transducer is a piezoelectric transducer configured to produce the electrical energy by piezoelectric effect. This provides a simple way of implementing the present system. The mechanical stress and/or the impact resulting in the
  • piezoelectric transducer from the wheels of the passing train moving over the rail joint gap is used to generate the electrical energy.
  • transducer is a magnetostrictive transducer configured to produce the electrical energy by magnetostrictive effect. This provides a simple way of implementing the present system.
  • transducer is a triboelectric transducer configured to produce the electrical energy by triboelectric effect. This provides a simple way of implementing the present system. The mechanical energy in the triboelectric transducer resulting from the frictive contact between the wheels of the passing train moving over the rail joint gap and the contact surface is used to generate the electrical energy.
  • the transducer is an electromagnetic transducer configured to produce the electrical energy by electromagnetic effect. This provides a simple way of implementing the present system. The mechanical energy in the electromagnetic transducer resulting from the electromagnetic effect of the wheels of the passing train moving over the rail joint gap and the contact surface is used to generate the electrical energy.
  • the electric power receiving unit is configured to provide the electrical energy to a power consuming device configured to consume the
  • the electric power receiving unit may receive the electrical energy from one or more of the electrical transducers and provide the electrical energy so received to a power consuming device that may be located at the side of the rail tracks.
  • a power consuming device may be a signal light.
  • the electric power receiving unit before providing the electrical energy to the external power consuming device may condition the electrical energy for example step up or down the voltage or change the strength of the electric power to be provided.
  • Such external power consuming devices along the railroad or the rail tracks may be supplied with the electrical energy generated from the rail joint gaps and thus completely or at least partially fulfilling the power needs of such external power consuming devices .
  • the electric power receiving unit is an electrical energy storing unit.
  • the electrical energy may be stored and used at a future point of time .
  • a method for generating electric power from a rail joint gap is provided.
  • an electric generator is positioned in the rail joint gap.
  • the electric generator includes a contact surface and an electrical transducer.
  • the contact surface is configured to contact a wheel of a passing train and to receive mechanical energy from the wheel of the passing train.
  • the electrical transducer is configured to produce electrical energy from the mechanical energy so received by the contact surface of the electric generator.
  • an electric power receiving unit is electrically connected to the electric generator.
  • the electric power receiving unit receives the electrical energy from the electric generator.
  • the electric power is generated from the mechanical energy by using the electric generator.
  • the wheel of the passing train comes in direct contact with the electric generator at the contact surface of the electric generator.
  • the mechanical energy from the wheel of the passing train is received directly by the electric generator and thus more mechanical energy is available to the electric generator compared to a technique wherein the wheel of the passing train does not come in direct contact of the electric generator. Since all the mechanical energy available to the electric generator comes from the wheel of the passing train, the direct contact between the electric generator and the wheel of the passing train ensures that the present method is more energy
  • the electric generator comprises a base material with a three dimensional (3D) structure and wherein the electrical transducer is embedded in the three dimensional structure of the base material.
  • the 3D structure physically protects the electrical transducer.
  • the 3D structure may also help to maintain the electrical transducer in a desired orientation with respect to the rail joint gap.
  • the base material may be flexible and/or elastic and thus the electrical transducer is
  • At least a part of the contact surface is a surface of the three dimensional structure. In a related embodiment the contact surface is entirely formed of the surface of the three dimensional structure.
  • the wheel of the passing train come in direct physical contact with the base material and the mechanical energy from the wheel of the passing train is transferred to the electrical transducer via the base material. This protects the electrical transducer from wear and tear resulting from direct contact with the wheels of the passing train.
  • at least a part of the contact surface is a surface of the electrical transducer. In a related embodiment of the method the contact surface is entirely formed of the surface of the electrical transducer.
  • the wheel of the passing train comes in direct physical contact with electrical transducer and the mechanical energy from the wheel of the passing train is transferred to the electrical transducer directly. This ensures no mechanical energy is lost when passed from the wheels of the passing train to the electrical transducer.
  • the electrical transducer In another embodiment of the method, the electrical
  • the transducer is a piezoelectric transducer configured to produce the electrical energy by piezoelectric effect.
  • the mechanical stress and/or the impact resulting in the piezoelectric transducer from the wheels of the passing train moving over the rail joint gap is used to generate the electrical energy.
  • the electrical energy is used to generate the electrical energy.
  • transducer is a magnetostrictive transducer configured to produce the electrical energy by magnetostrictive effect.
  • transducer is a triboelectric transducer configured to produce the electrical energy by triboelectric effect.
  • the mechanical energy in the triboelectric transducer resulting from the frictive contact between the wheels of the passing train moving over the rail joint gap and the contact surface is used to generate the electrical energy.
  • the transducer is an electromagnetic transducer configured to produce the electrical power by electromagnetic effect.
  • the mechanical energy in the electromagnetic transducer resulting from the electromagnetic effect of the wheels of the passing train moving over the rail joint gap and the contact surface is used to generate the electrical energy.
  • the electric power receiving unit provides the electrical energy to a power consuming device configured to consume the electrical energy so provided.
  • the electric power receiving unit may receive the electrical energy from one or more of the
  • the electric power receiving unit before providing the electrical energy to the external power consuming device may condition the electrical energy for example step up or down the voltage or change the
  • Such external power consuming devices along the railroad or the rail tracks may be supplied with the electrical energy generated from the rail joint gaps and thus completely or at least partially fulfilling the power needs of such external power consuming devices.
  • the electric power receiving unit is an electrical energy storing unit and wherein the method further comprises storing the electrical power so received in the electrical energy storing unit.
  • the electrical energy is stored for use at a future point of time.
  • FIG 1 schematically illustrates side view of a rail track with a rail gap joint and a system for generating electric power from the rail joint gap
  • FIG 2 schematically illustrates zoomed in side view
  • FIG 3 schematically illustrates side view of an exemplary embodiment of the system for generating electric power from the rail joint gap
  • FIG 4 schematically illustrates top view of the exemplary embodiment of the system shown in FIG 3, schematically illustrates side view of another exemplary embodiment of the system for generating electric power from the rail joint gap, schematically illustrates top view of the exemplary embodiment of the system shown in FIG 5, schematically illustrates side view of a rail track with a rail gap joint, schematically illustrates top view of the rail track with the rail gap joint, and illustrates a flow chart representing a method for generating electric power from the rail joint gap, in accordance with aspects of the present technique .
  • the present technique involves generating electrical energy from the joints in rail tracks. Such joints are between lengths of rails and serve to form a long uninterrupted stretch of rails from shorter preformed lengths of rails. Such joints are commonly found in jointed rail tracks and sometimes also present in continuous welded rail tracks.
  • the idea of the present technique is to generate electric power or electrical energy at these joints which may then be provided to various devices and equipments, such as traffic signals, communication devices, etc present along the track, preferably in vicinity of the joints.
  • Example of such joints is illustrated in FIGs 7 and 8.
  • FIG 7 schematically illustrates side view of a rail track with a rail gap joint 10
  • FIG 8 schematically illustrates top view of the rail track with the rail gap joint 10.
  • the rail gap joint 10 (hereinafter referred to as the joint 10) is between an end of the rail beam 12 and an end of the rail beam 16.
  • the rail bars 12, 16 are usually fastened or fixed together for example by bolting together using one or more perforated steel plate known as fishplate 20 or joint bars.
  • Fishplate fasteners 22 are usually bolts that connect the fishplate 20 to the adjacent rail beams 12, 16, as shown in the FIGs 7 and 8.
  • FIGs 7 and 8 also depict top surfaces 14 and 18 of the rail beams 12 and 16, respectively.
  • electrical energy or electric power is generated from one or more of the joints 10.
  • the present technique is explained in details .
  • FIG 1 schematically illustrates side view of the rail track with the rail gap joint 10 and a system 1 for generating electric power from the rail joint gap 10.
  • FIG 2 schematically illustrates side view of the rail track with the rail gap joint 10 and a system 1 for generating electric power from the rail joint gap 10.
  • the system 1 includes an electric generator 30 and an electric power receiving unit 40.
  • the electric generator 30 is positioned in the rail joint gap 10. The electric
  • the generator 30 includes a contact surface 36 (shown in FIG 2) and an electrical transducer (shown in FIG 3 and 4) .
  • the electric transducer is a transducer that receives mechanical energy and converts the received mechanical energy to
  • the contact surface 36 is a part or a surface of the electric generator 30 which comes in contact with wheels 4, 6 when a train 2 passes over the rail track i.e. the rail beams 12, 16 and the joint 10.
  • the electric generator 30 through contact with the wheel 4,6 of the passing train 2 receives mechanical energy from the wheel 4,6 of the passing train 2.
  • the mechanical energy from the wheel 4,6 of the passing train 2 is transmitted via the contact surface 36 of the electric generator 30 to the electrical transducer of the electric generator 30.
  • the mechanical energy so received by the contact surface 36 and thus by the electric transducer is converted to electric energy by the electric transducer of the electric generator 30.
  • the electric power receiving unit 40 is electrically connected to The electric power receiving unit 40
  • the electric power receiving unit 40 receive the
  • the contact surface 36 of the electric generator 30 comes in direct contact with the wheels 4,6 of the passing train 2.
  • the contact surface 36 of the electric generator 30 comes in direct contact with the wheels 4,6 of the passing train 2.
  • the electric generator 30 is positioned in the joint 10 such that at least a part of the contact surface 36 is leveled with the top surfaces 14, 18 of the heads 13, 17 of the rails 12, 16.
  • the electric generator 30 is positioned in the joint 10 such that at least a part of the electric generator 30 including the contact surface 36 protrudes beyond a level of the top surfaces 14, 18 of the heads 13, 17 of the rails 12, 16.
  • the contact surface 36 is either at same level as a top surface 24 of the joint 10 or protrudes beyond top surface 24 of the joint 10.
  • the top surface 24 of the joint 10 is basically an imaginary surface which would have formed if the top surfaces 14, 18 of the heads 13, 17 of the rails 12, 16 were extended regularly to form a continuous surface.
  • the electric power receiving unit 40 is configured to provide the
  • the electric power receiving unit 40 may receive the electrical energy from one or more of the electric generators 30 and provide the electrical energy so received to one or more of the power consuming devices 60.
  • the power consuming devices 60 may be located at sides of the rail track i.e. at side of or along the rail bars 12, 16 and the joint 10. Example of such power consuming device 60 may be a traffic signal light, communication devices, battery units, different sensors, and so on and so forth.
  • the electric power receiving unit 40 provides the electrical energy to the external power consuming device 60 directly without altering any characteristic of the electric energy, whereas in an alternate exemplary embodiment of the system 1, the electric power receiving unit 40 before providing the electrical energy to the external power consuming device 60 may
  • the electric power receiving unit 40 is an electrical energy storing unit for example a battery unit.
  • the electrical energy storing unit 40 stores the electrical energy which may be used at a future point in time.
  • FIG 3 and FIG 4 schematically illustrate side view and top view
  • FIG 5 and FIG 6 schematically illustrate side view and top view
  • the electric generator 30 includes a base material 50 formed in a three dimensional (3D) structure 52.
  • the 3D structure 52 is
  • FIGs 3 and 5 schematically depict different exemplary types of embedding of the electrical transducer 32 in the base material 50.
  • the electrical transducer 32 is embedded such that no part of the electrical transducer 32 forms a part of the contact surface 36 whereas in exemplary
  • the electrical transducer 32 is embedded such that at least a part of the electrical transducer 32 forms a part of the contact surface 36.
  • At least a part 37 of the contact surface 36 is a surface 54 of the three dimensional structure 52.
  • at least a part 38 of the contact surface 36 is a surface 33 of the electrical transducer 32.
  • the base material 50 may be a flexible and/or elastic and may be manufactured from an alloy, a polymer or resin, etc.
  • the electric transducer 32 may be based on a variety of electromechanical techniques, for example, the electrical transducer 32, may be, but not limited to, a piezoelectric transducer, a magnetostrictive transducer, a triboelectric transducer, an electromagnetic transducer.
  • the piezoelectric transducer for example a transducer based on Lead zirconate titanate, also known as PZT, is configured to produce the electrical energy by piezoelectric effect.
  • PZT Lead zirconate titanate
  • the magnetostrictive transducer, the triboelectric transducer and the electromagnetic transducer produce
  • FIG 9 in combination with FIGs 1 to 8 , a flow chart representing a method 100 for generating electric power from the rail joint gap 10, in accordance with aspects of the present technique, is illustrated.
  • the method uses a system 1 as described in reference to FIGs 1 to 8.
  • the electric generator 30 is positioned in the rail joint gap 10 in a step 110.
  • the electric generator includes the contact surface and the electrical transducer as described in
  • the electric power receiving unit 40 is electrically connected to the electric generator 30 in a step 120. The electric power receiving unit 40 thus receives the electrical energy from the electric generator 30.
  • the electrical energy then is provided to the power consuming devices 60 in a step 130.
  • the electrical energy is stored in the electrical energy storing unit 40 such as a battery and may be later provided to power consuming devices 60 as described in the step 130.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Current-Collector Devices For Electrically Propelled Vehicles (AREA)

Abstract

La présente invention concerne un système et un procédé pour générer de l'énergie électrique à partir d'un espace de joint de rail. La technique comprend un générateur électrique et une unité de réception d'énergie électrique. Le générateur électrique est positionné dans l'espace de joint de rail. Le générateur électrique comprend une surface de contact conçue pour entrer en contact avec une roue d'un train passant et pour recevoir de l'énergie mécanique à partir de la roue du train passant. Le générateur électrique est conçu pour produire de l'énergie électrique à partir de l'énergie mécanique ainsi reçue par la surface de contact du générateur électrique. L'unité de réception d'énergie électrique est connectée électriquement au générateur électrique et conçue pour recevoir l'énergie électrique à partir du générateur électrique.
PCT/RU2015/000420 2015-07-06 2015-07-06 Technique pour générer de l'énergie électrique à partir d'un espace de joint de rail WO2017007359A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/RU2015/000420 WO2017007359A1 (fr) 2015-07-06 2015-07-06 Technique pour générer de l'énergie électrique à partir d'un espace de joint de rail

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/RU2015/000420 WO2017007359A1 (fr) 2015-07-06 2015-07-06 Technique pour générer de l'énergie électrique à partir d'un espace de joint de rail

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WO2017007359A1 true WO2017007359A1 (fr) 2017-01-12

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107872170A (zh) * 2017-11-02 2018-04-03 上海工程技术大学 一种回收车架与转向架垂向振动能量的装置
RU2658751C1 (ru) * 2017-09-13 2018-06-22 Куми Вячеслав Владимирович Электрогенерирующее устройство
RU2666073C1 (ru) * 2017-09-27 2018-09-05 Федеральное государственное бюджетное образовательное учреждение высшего образования "Морской государственный университет имени адмирала Г.И. Невельского" Система для сбора электроэнергии с железнодорожных путей
CN112030616A (zh) * 2020-07-21 2020-12-04 中南大学 一种基于共振原理的减振发电轨枕

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US20060076461A1 (en) * 2004-10-12 2006-04-13 General Electric Company System and method for self powered wayside railway signaling and sensing
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WO2012131683A2 (fr) * 2011-03-31 2012-10-04 Innowattech Ltd. Système et procédé de collecte d'informations de voies ferrées
RU2511738C2 (ru) * 2011-12-21 2014-04-10 Общество с ограниченной ответственностью "Научно-Технический Центр Информационные Технологии" Способ размагничивания рельсового изолирующего стыка и устройство для его осуществления

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US6362534B1 (en) * 1999-08-26 2002-03-26 William M. Kaufman Apparatus and method for extracting energy from a passing train
US20060076461A1 (en) * 2004-10-12 2006-04-13 General Electric Company System and method for self powered wayside railway signaling and sensing
US20090195122A1 (en) * 2008-02-06 2009-08-06 Innowattech Ltd. Power Harvesting From Railway; Apparatus, System And Method
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Publication number Priority date Publication date Assignee Title
RU2658751C1 (ru) * 2017-09-13 2018-06-22 Куми Вячеслав Владимирович Электрогенерирующее устройство
RU2666073C1 (ru) * 2017-09-27 2018-09-05 Федеральное государственное бюджетное образовательное учреждение высшего образования "Морской государственный университет имени адмирала Г.И. Невельского" Система для сбора электроэнергии с железнодорожных путей
CN107872170A (zh) * 2017-11-02 2018-04-03 上海工程技术大学 一种回收车架与转向架垂向振动能量的装置
CN107872170B (zh) * 2017-11-02 2019-07-12 上海工程技术大学 一种回收车架与转向架垂向振动能量的装置
CN112030616A (zh) * 2020-07-21 2020-12-04 中南大学 一种基于共振原理的减振发电轨枕

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