WO2009036711A2 - The method of setting the decisive parameters of a track circuit with a digital track receiver and a power supply end to achieve higher resistance against endangering currents - Google Patents

The method of setting the decisive parameters of a track circuit with a digital track receiver and a power supply end to achieve higher resistance against endangering currents Download PDF

Info

Publication number
WO2009036711A2
WO2009036711A2 PCT/CZ2008/000110 CZ2008000110W WO2009036711A2 WO 2009036711 A2 WO2009036711 A2 WO 2009036711A2 CZ 2008000110 W CZ2008000110 W CZ 2008000110W WO 2009036711 A2 WO2009036711 A2 WO 2009036711A2
Authority
WO
WIPO (PCT)
Prior art keywords
track
power supply
track circuit
receiver
supply end
Prior art date
Application number
PCT/CZ2008/000110
Other languages
French (fr)
Other versions
WO2009036711A3 (en
Inventor
Antonín FARAN
Karel Mlnarik
Radek Dobias
Stanislav Srb
Pavel Bukac
Jan Konarski
Libor Votocek
Michal Charvat
Original Assignee
Azd Praha S.R.O.
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 Azd Praha S.R.O. filed Critical Azd Praha S.R.O.
Priority to SK50015-2010A priority Critical patent/SK288183B6/en
Publication of WO2009036711A2 publication Critical patent/WO2009036711A2/en
Publication of WO2009036711A3 publication Critical patent/WO2009036711A3/en

Links

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
    • B61L1/18—Railway track circuits
    • B61L1/181—Details
    • B61L1/188—Use of coded current
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
    • B61L27/50—Trackside diagnosis or maintenance, e.g. software upgrades
    • B61L27/53—Trackside diagnosis or maintenance, e.g. software upgrades for trackside elements or systems, e.g. trackside supervision of trackside control system conditions

Definitions

  • the invention concerns the method of setting the decisive parameters of a track circuit with a digital track receiver and a power supply end to achieve higher resistance against endangering currents.
  • the method is carried out using the safe evaluation of whether the track circuit is occupied or unoccupied with a track vehicle, through the power supply end adjustment elements and the receiver end adjustment elements, while the shunt status is evaluated.
  • the essence of this invention consists in the fact, that in the first step during the unoccupied state of the track circuit, all of the track circuit's considered combinations of discrete values of power supply end equipment setting elements and receiver end equipment setting elements, are set after the chosen steps, that differ, from the nominal values of the power supply end equipment setting elements and from the nominal values of the receiver end equipment setting elements, by units of percentage.
  • the setting is carried out until discovering the optimum phase angle between the track voltage, which is derived from the power supply track voltage, and the referential voltage for the unoccupied state of the track circuit.
  • the state of emergency and shunt state of the track circuit is calculated for this optimum phase angle.
  • the second change is made, to the track circuit's power supply end equipment setting elements and the receiver end equipment setting elements, according to the considered combination of power supply end equipment setting elements and receiver end equipment setting elements, step by step, differing on the order of units of percentage, from the values inherent to the optimum state according to the first step so, that the goal is to find the track circuit's resultant phase angle.
  • the set of values for the optimum configuration of the power supply end equipment setting elements and the optimum configuration of the receiver end equipment setting elements of the track circuit are determined so that, they are mutually the most favourable conditions for the track circuit's shunt state and state of emergency.
  • the very precise measurements of the reference voltage values are carried out gradually, including all interferential and endangering components of the reference voltage, which could be induced into the reference voltage circuits from the surroundings of the track circuit with a digital track receiver and with a power supply end.
  • the voltages induced by the endangering currents are also measured so, that when a value of these interferential and endangering components of the reference voltage is above a limit, an instruction is sent to the digital track receiver for its safe field suppression so, that the given track circuit with a digital track receiver safely appears to be occupied by a track vehicle.
  • the main advantage of the method of setting the decisive parameters of the track circuit with a digital track receiver and a power supply end is achieving higher resistance against endangering currents. It leads to the optimum calculation of these parameters and to the subsequent unambiguous setting primarily of the phase ratios between the track voltage and the reference voltage on the basis of the optimisation of the shunt state and the state of emergency. This is done objectively (i.e. without the influence of a human factor). This process greatly speeds up the activity in question and shortens the connected closure of railroad traffic.
  • Another advantage is the fact, that in the event of the occurrence of components of endangering voltage in the reference voltage that are over the limit, it leads to the occupation of the given electric track section of the given track circuit, which prevents the dangerous state in time and the resulting failure is reported, or appears in time.
  • Another strength is that the setting of the track circuit's decisive parameters, i.e. its parametrisation, is part of the data configuration. It is implemented once, before the starting activities of the track circuit with a digital track receiver, on the basis of the optimisation of the shunt state and state of emergency, depending on the length of the track circuit and the earth leakage admittance.
  • Fig. 3 depiction the discretisation (digitalisation) resulting values of the setting elements.
  • step by step differing on the order of units of percentage, from the values inherent to the optimum state according to the first step so, that the goal is to find the track circuit's KO resultant phase angle ⁇ y.
  • the set of values for the optimum configuration of the power supply end equipment setting elements NPNO and the set of values for the optimum configuration of the receiver end equipment setting elements NPPO of the track circuit KO are determined so, that they are mutually the most favourable conditions for the track circuit's KO shunt state SS and state of emergency HS.
  • an approach is chosen, where the lowest track voltage UKH in a state of emergency is chosen so, that the lowest possible corresponding track voltage UKS level in the shunt state is found.
  • a suitable method for setting the decisive parameters of the track circuit KO with a digital track receiver DKP and a power supply end NK to achieve higher resistance against endangering currents IR is apparent from the generalised schematic diagram of the implementation given in Fig. 1.
  • the very precise measurements of the reference voltage UR values are carried out gradually, including all interferential and endangering components of the reference voltage URR. which could be induced into the reference voltage UR circuits from the surroundings of the track circuit KO with a digital track receiver DKP and with a power supply end NK.
  • the voltages of the induced endangering currents TC are also measured.
  • the method for setting the decisive parameters of a track circuit KO with a digital track receiver DKP and with a power supply end NK to achieve higher resistance against endangering currents IR 1 can be used for both the new construction of railway signalling equipment with track circuits KO with digital track receivers DKP 1 as well as for innovating existing track circuits.
  • the invention will particularly find application in all electrified routes on which powerful tractive vehicles and tractive units with asynchronous motors, whose emissions of endangering currents reach high, even overlimit values, in the sense of the valid norms, should run.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Automation & Control Theory (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Control Of Voltage And Current In General (AREA)

Abstract

The method of setting the decisive parameters is carried out by a calculation. In the first step during the unoccupied state (VS) of the track circuit (KO) all of the track circuit's (KO) considered combinations of discrete values (H) of power supply end equipment setting elements (NPN) and receiver end equipment setting elements (NPP), are set after the chosen steps (ZK), to find the optimum phase angle (αo), between the track voltage (UK), which is induced from the power supply track voltage (NUK), and between the reference voltage (UR) for the unoccupied state (VS) of the track circuit (KO). The state of emergency (HS) and shunt state (SS) of the track circuit (KO) is calculated for this optimum phase angle (αo). In the second step, the track circuit's (KO) power supply end equipment setting elements (NPN) and receiver end equipment setting elements (NPP), are corrected, according to the considered combination of power supply end equipment setting elements (NPN) and receiver end equipment setting elements (NPP). The goal is to find the track circuit's (KO) resultant phase angle (αv). Thus, the first set of values for the optimum configuration (NPNO) of the power supply end (NK) equipment setting elements (NPN) and the second set of values for the optimum configuration (NPPO) of the receiver end (PK) equipment setting elements (NPP) of the track circuit (KO), are determined, until finding the most favourable mutual conditions, for the track circuit's (KO) shunt state (SS) and simultaneously the state of emergency (HS). The lowest possible track voltage during a state of emergency (UKH) is subsequently chosen so, that the lowest possible corresponding track voltage level in the shunt state (UKS) is found. The resulting value (VHN) of the power supply end setting elements and the resulting value (VHP) of the receiver end setting elements found in this manner, are fast set, for the track circuit's (KO) value of the power supply end (NK) equipment and value of the receiver end (PK) equipment found in this manner, and thereby also the resulting phase angle (αv) between the track circuits (KO) track voltage (UK) and between reference voltage (UR) found in this manner.

Description

The Method of Setting the Decisive Parameters of a Track Circuit with a Digital Track Receiver and a Power Supply End to Achieve Higher Resistance against Endangering Currents
Technical Field
The invention concerns the method of setting the decisive parameters of a track circuit with a digital track receiver and a power supply end to achieve higher resistance against endangering currents. The method is carried out using the safe evaluation of whether the track circuit is occupied or unoccupied with a track vehicle, through the power supply end adjustment elements and the receiver end adjustment elements, while the shunt status is evaluated.
Background Art
The method for setting the decisive parameters of the track circuit to achieve higher resistance against endangering currents for track circuits with a digital track receiver have not been resolved to be economically effective, nor have they been used. That is a disadvantage since this results in the track circuit with a digital track receiver not attaining the required or possible resistance against endangering currents. Meanwhile the occurrence of endangering currents is much more frequent as a result of the introduction of new powerful tractive units and tractive vehicles with asynchronous motors and these endangering currents achieve much higher intensities than in the past during pulse width regulation of the vehicles' and units' traction drives, thus when operating powerful tractive units and tractive vehicles with asynchronous motors. This has been adversely shown in the insufficient level of the parameters of the track circuits' resistance against endangering currents. This resistance is required on the basis of the requirements of the technical specifications of the interoperability between tractive traction vehicles or units and track circuits.
The available modern solutions of electronic track circuits' resistance against endangering currents is apparent from CZ 296 242 from 26 November 2004. It is a solution where the correct voltage component is fed to the track circuit along with a contractually deformed voltage component. It is possible to safely evaluate whether the length of track is occupied or unoccupied by a track vehicle in this manner on the basis of mathematical analyses. A disadvantage of this solution is the demanding generation and application of the contractually deformed voltage component. This method particularly requires the demanding facilities for the employees performing
1 the regulation, maintenance and service of track circuits conceived in this manner with measurement devices.
Another available solution to the safe evaluation of the track circuit occupancy is apparent from CZ 297 033 dated 16 July 2003. This implementation of the invention does not eliminate the necessary effective influence of the endangering currents, so the safe evaluation as to whether the length of track is occupied or unoccupied by a track vehicle is not sufficiently effective functionally. The given problem is also covered by the solution according to utility model CZ 15508 from 11 May 2005 with an electronic phase-sensitive track receiver. It is an analogue system of an electronic phase-sensitive receiver, whose resistance against endangering currents is based on the increased disconnection factor. This solution, similarly to the two-phase track receiver according to invention CZ 257 559, is based on the already obsolete concept of resistance against endangering currents based on an increased disconnection factor. Though this resistance for this solution is increased to the level that was common at the time, it is still at approximately half the value recommended by the drafts of the TSI (Technical Specifications of Interoperability) from the European Normalisation Institute "CENELEC." Summary of the Invention
The aforementioned disadvantages of the known solutions are removed or substantially limited in the method of setting the decisive parameters of the track circuit with a digital track receiver and a power supply end to achieve higher resistance against endangering currents according to this invention.
The essence of this invention consists in the fact, that in the first step during the unoccupied state of the track circuit, all of the track circuit's considered combinations of discrete values of power supply end equipment setting elements and receiver end equipment setting elements, are set after the chosen steps, that differ, from the nominal values of the power supply end equipment setting elements and from the nominal values of the receiver end equipment setting elements, by units of percentage. In this first step the setting is carried out until discovering the optimum phase angle between the track voltage, which is derived from the power supply track voltage, and the referential voltage for the unoccupied state of the track circuit. The state of emergency and shunt state of the track circuit is calculated for this optimum phase angle.
In the second step the second change is made, to the track circuit's power supply end equipment setting elements and the receiver end equipment setting elements, according to the considered combination of power supply end equipment setting elements and receiver end equipment setting elements, step by step, differing on the order of units of percentage, from the values inherent to the optimum state according to the first step so, that the goal is to find the track circuit's resultant phase angle. Thus for this purpose, the set of values for the optimum configuration of the power supply end equipment setting elements and the optimum configuration of the receiver end equipment setting elements of the track circuit, are determined so that, they are mutually the most favourable conditions for the track circuit's shunt state and state of emergency. For this an approach is chosen, where the lowest track voltage during a state of emergency is chosen so, that the lowest possible corresponding track voltage level in the shunt state, is found. Then, the resulting value of the power supply end setting elements found in this manner, and the resulting value of the receiver end setting elements found in this manner, are fast set, for the value of the power supply end equipment found in this manner, and for the value of the receiver end equipment found in this manner, thereby also setting the found resulting phase angle between the track circuit's track voltage and reference voltage, for example in the form of the configuration data of the track circuit with a digital track receiver and with a power supply end.
With an advantage the very precise measurements of the reference voltage values are carried out gradually, including all interferential and endangering components of the reference voltage, which could be induced into the reference voltage circuits from the surroundings of the track circuit with a digital track receiver and with a power supply end. Thus the voltages induced by the endangering currents are also measured so, that when a value of these interferential and endangering components of the reference voltage is above a limit, an instruction is sent to the digital track receiver for its safe field suppression so, that the given track circuit with a digital track receiver safely appears to be occupied by a track vehicle.
The main advantage of the method of setting the decisive parameters of the track circuit with a digital track receiver and a power supply end is achieving higher resistance against endangering currents. It leads to the optimum calculation of these parameters and to the subsequent unambiguous setting primarily of the phase ratios between the track voltage and the reference voltage on the basis of the optimisation of the shunt state and the state of emergency. This is done objectively (i.e. without the influence of a human factor). This process greatly speeds up the activity in question and shortens the connected closure of railroad traffic. Another advantage is the fact, that in the event of the occurrence of components of endangering voltage in the reference voltage that are over the limit, it leads to the occupation of the given electric track section of the given track circuit, which prevents the dangerous state in time and the resulting failure is reported, or appears in time. Another strength is that the setting of the track circuit's decisive parameters, i.e. its parametrisation, is part of the data configuration. It is implemented once, before the starting activities of the track circuit with a digital track receiver, on the basis of the optimisation of the shunt state and state of emergency, depending on the length of the track circuit and the earth leakage admittance.
Brief Description of the Drawings
The invention is described in detail in the example implementation, depicted on the attached diagrams, which show Fig.1 generalised schematic depiction of a track circuit, Fig. 2 vector diagram of phase dependence and
Fig. 3 depiction the discretisation (digitalisation) resulting values of the setting elements.
Implementation Examples In the example implementation, depicted schematically in Figs. 1 , 2 and 3, the method for setting the decisive parameters of the track circuit KO with a digital track receiver DKP and with a power supply end NK to achieve higher resistance against endangering currents IR is described. The method is clarified further on the basis of the vector diagram presented in Fig. 2, which depicts the course of the track voltage UK in relation to the reference voltage UR. The search for the optimal and resulting values of the track circuit's KO power supply end NK setting elements NPN and the receiver end PK setting elements NPP is apparent from Fig. 3.
In the first step, during the unoccupied state VS of the track circuit KO, all of the considered combinations of the discrete values H (Fig. 3) of the power supply end equipment setting elements NPN and the receiver end equipment setting elements NPP of the track circuit KO, after the chosen steps ZK, differing from the nominal value NHN the supply end setting elements NPN and from the nominal value NHP of the receiver end setting elements NPP of the track circuit KO, on the order of percentage points are set; thus the optimum phase angle αo (Fig. 2) between the track voltage UK, which is induced from the power supply track voltage NUK. and between the reference voltage UR , is found, for the unoccupied state VS of the track circuit KO. The state of emergency HS and shunt state SS of the track circuit KO are calculated for this optimum phase angle go.
In the second step another change is made to the track circuit's KO power supply end equipment setting elements NPN and the receiver end equipment setting elements NPP, according to the considered combination of power supply end equipment setting elements NPN and receiver end equipment setting elements NPP. step by step, differing on the order of units of percentage, from the values inherent to the optimum state according to the first step so, that the goal is to find the track circuit's KO resultant phase angle αy. Thus for this purpose the set of values for the optimum configuration of the power supply end equipment setting elements NPNO and the set of values for the optimum configuration of the receiver end equipment setting elements NPPO of the track circuit KO, are determined so, that they are mutually the most favourable conditions for the track circuit's KO shunt state SS and state of emergency HS. For this purpose an approach is chosen, where the lowest track voltage UKH in a state of emergency is chosen so, that the lowest possible corresponding track voltage UKS level in the shunt state is found. Upon which the resulting value VHN of the power supply end setting elements found in this manner and the resulting value VHP of the receiver end setting elements NPN found in this manner, are fast set, for the track circuit's KO value of the power supply end NK equipment found in this manner and for the track circuit's KO value of the receiver end PK equipment found in this manner, and thereby also setting the resulting phase angle αy, between the track circuit's KO track voltage UK and between reference voltage UR, for example in the form of the configuration data of the track circuit KO with a digital track receiver DKP and with a power supply end NK.
A suitable method for setting the decisive parameters of the track circuit KO with a digital track receiver DKP and a power supply end NK to achieve higher resistance against endangering currents IR, is apparent from the generalised schematic diagram of the implementation given in Fig. 1. In this case the very precise measurements of the reference voltage UR values are carried out gradually, including all interferential and endangering components of the reference voltage URR. which could be induced into the reference voltage UR circuits from the surroundings of the track circuit KO with a digital track receiver DKP and with a power supply end NK. Thus the voltages of the induced endangering currents TC are also measured. Thus when an overlimit value of these interfering and endangering components of the reference voltage URRn is determined, an instruction is sent to the digital track receiver PKP for its safe field suppression so, that the given track circuit KO with a digital track receiver DKP safely appears to be occupied by a track vehicle KV.
Industrial Applicability
As evident from the aforementioned description, the method for setting the decisive parameters of a track circuit KO with a digital track receiver DKP and with a power supply end NK to achieve higher resistance against endangering currents IR1 can be used for both the new construction of railway signalling equipment with track circuits KO with digital track receivers DKP1 as well as for innovating existing track circuits. The invention will particularly find application in all electrified routes on which powerful tractive vehicles and tractive units with asynchronous motors, whose emissions of endangering currents reach high, even overlimit values, in the sense of the valid norms, should run.

Claims

C L A I M S
1. The method for setting the decisive parameters of a track circuit (KO) with a digital track receiver (DKP) and with a power supply end (NK) to achieve higher resistance against endangering currents (IR), with the help of the safe evaluation of whether the track circuit (KO) is occupied or unoccupied with a track vehicle (KV), through the power supply end adjustment elements (NPN) and the receiver end adjustment elements (NPP), while the shunt status (SS) and state of emergency (HS) is evaluated, is characterised in that in the first step during the unoccupied state (VS) of the track circuit (KO) all of the track circuit's (KO) considered combinations of discrete values (H) of power supply end (NK) equipment setting elements (NPN) and receiver end (PK) equipment setting elements (NPP), are set, after the chosen steps (ZK), that differ from the nominal values (NHN) of the power supply end equipment setting elements (NPN) and the nominal values (NHP) of the receiver end equipment setting elements (NPP), by units of percentage, until finding the optimum phase angle (αo), between the track voltage (UK), which is induced from the power supply track voltage (NUK), and between the reference voltage (UR) for the unoccupied state (VS) of the track circuit (KO); with that, the state of emergency (HS) and shunt state (SS) of the track circuit (KO) being calculated for this optimum phase angle (αo); while in the second step the previous setting to the track circuit's (KO) power supply end (NK) equipment setting elements (NPN) and the receiver end (PK) equipment setting elements (NPP), is amended, according to the considered combination of power supply end equipment setting elements (NPN) and receiver end equipment setting elements (NPP), step by step, differing on the order of units of percentage, from the values, inherent to the optimum state, according to the first step until finding the track circuit's (KO) resultant phase angle (αv), - thus the first set of values for the optimum configuration (NPNO) of the power supply end equipment setting elements and the second set of values for the optimum configuration (NPPO) of the receiver end equipment setting elements of the track circuit (KO), are subsequently determined, until achieving the most favourable conditions for the track circuit's (KO) shunt state (SS), and simultaneously the most favourable conditions for the track circuit's (KO) state of emergency (HS); the lowest track voltage (UKH) during a state of emergency is subsequently chosen so, that the lowest possible corresponding track voltage (UKS) level in the shunt state, is found; upon which, the resulting value (VHN) of the power supply end setting elements found in this manner and the resulting value (VHP) of the receiver end setting elements found in this manner, are fast set, for the track circuit's (KO) value of the power supply end (NK) equipment found in this manner and for the track circuit's (KO) value of the receiver end (PK) equipment found in this manner, and thereby setting the resulting phase angle (αv), between the track circuit's (KO) track voltage (UK) and between reference voltage (UR) found in this manner, primarily in the form of the configuration data of the track circuit (KO) with a digital track receiver (DKP) and with a power supply end (NK).
2. The method of setting the decisive parameters of a track circuit (KO) with a digital track receiver (DKP) and a power supply end (NK) to achieve higher resistance against endangering currents (IR) pursuant to claim 1 , is characterised in that the very precise measurements of the reference voltage (UR) values are carried out gradually, including the all interferential and endangering components of the reference voltage (URR), which could be induced into the reference voltage (UR) circuits from the surroundings of the track circuit (KO) with a digital track receiver
(DKP) and with a power supply end (NK); and the possible voltages of the induced endangering currents (IR) are also measured so, that when the overlimit value (URRn) of interferential and endangering components of reference voltage is determined, an instruction is sent to the digital track receiver (DKP) for its safe field suppression, by which the given track circuit (KO) with a digital track receiver (DKP) safely appears to be occupied by a track vehicle (KV ). List of Abbreviations
KO Track Circuit
DKP Digital Track Receiver
NK Power Supply End
IR Endangering Current
VS Unoccupied State
H Discrete Value
NPN Power Supply End Setting Element
NPP Receiver End Setting Element
ZK Chosen Steps
NHN Nominal Value of NHN Power Supply End Setting Element
NHP Nominal Value of NHP Receiver End Setting Element αo Optimum Phase Angle
UK Track Voltage
NUK ^ Power Supply Track Voltage
UR Reference Voltage
URR Interferential and Endangering Components URR of Reference
Voltage
URRn Overlimit Value of Interferential and Endangering Components of
Reference Voltage
HS State of Emergency
SS Shunt State αv Resultant Phase Angle
NPNO Values of Optimal Configuration NPNO of Power Supply End
Equipment Setting Element
NPPO Values of Optimal Configuration NPPO of Receiver End
Equipment Setting Element
UKH Track Voltage UKH in State of Emergency
UKS Track Voltage UKH in Shunt State
PK Receiver End
VHN Resulting Value VHN of Power Supply End Setting Elements
VHP Resulting Value VHP of Receiver End Setting Elements
KV Track Vehicle
PCT/CZ2008/000110 2007-09-21 2008-09-18 The method of setting the decisive parameters of a track circuit with a digital track receiver and a power supply end to achieve higher resistance against endangering currents WO2009036711A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SK50015-2010A SK288183B6 (en) 2007-09-21 2008-09-18 Method of setting decisive parameters of track circuit with digital track receiver and feeding end in order to achieve greater resistance to endangering currents

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CZPV2007-669 2007-09-21
CZ20070669A CZ2007669A3 (en) 2007-09-21 2007-09-21 Method of setting decisive parameters of track circuit with digital track receiver and feeding end in order to achieve greater resistance to endangering currents

Publications (2)

Publication Number Publication Date
WO2009036711A2 true WO2009036711A2 (en) 2009-03-26
WO2009036711A3 WO2009036711A3 (en) 2009-05-07

Family

ID=40395243

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CZ2008/000110 WO2009036711A2 (en) 2007-09-21 2008-09-18 The method of setting the decisive parameters of a track circuit with a digital track receiver and a power supply end to achieve higher resistance against endangering currents

Country Status (3)

Country Link
CZ (1) CZ2007669A3 (en)
SK (1) SK288183B6 (en)
WO (1) WO2009036711A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108021035A (en) * 2017-11-17 2018-05-11 电子科技大学 A kind of branch residual voltage amplitude stability method based on compensation leak resistance

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ303498B6 (en) * 2008-11-26 2012-10-24 Ažd Praha S. R. O. Method of adjusting track and reference voltages for feeding two-phase parallel track circuits for railway
CN110641514A (en) * 2019-10-30 2020-01-03 河北冀胜轨道科技股份有限公司 System for solving bad shunting of railway
CN112147486B (en) * 2020-09-23 2024-06-11 中铁电气化局集团有限公司 25HZ phase-sensitive track circuit simulation tester and testing method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2116766A (en) * 1982-02-25 1983-09-28 American Standard Inc Reset apparatus for railway track circuits
US4652986A (en) * 1986-04-07 1987-03-24 American Standard Inc. Vital inverter driver

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CS257559B1 (en) * 1985-10-23 1988-05-16 Stanislav SRB Connection of two-phase contactless rail receiver
CZ297033B6 (en) * 2003-07-16 2006-08-16 Azd Praha S. R. O. Method of safe assessment of rail circuit unrestraint and rail circuit arrangement for making the same
CZ296242B6 (en) * 2004-11-26 2006-02-15 Azd Praha S. R. O. Method of safe assessment of vacancy of a track section with regard to increase of resistance to spurious effects and circuit track circuit arrangement for making the method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2116766A (en) * 1982-02-25 1983-09-28 American Standard Inc Reset apparatus for railway track circuits
US4652986A (en) * 1986-04-07 1987-03-24 American Standard Inc. Vital inverter driver

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108021035A (en) * 2017-11-17 2018-05-11 电子科技大学 A kind of branch residual voltage amplitude stability method based on compensation leak resistance
CN108021035B (en) * 2017-11-17 2020-07-21 电子科技大学 Shunt residual voltage amplitude stabilizing method based on compensation leakage resistor

Also Published As

Publication number Publication date
WO2009036711A3 (en) 2009-05-07
SK500152010A3 (en) 2010-09-07
CZ300198B6 (en) 2009-03-11
CZ2007669A3 (en) 2009-03-11
SK288183B6 (en) 2014-04-02

Similar Documents

Publication Publication Date Title
EP2548275B1 (en) Electric circuit of a vehicle
CN100392932C (en) Method and device for overvoltage protection in dual-voltage vehicle electrical systems
DE102015110799A1 (en) Gate drive undervoltage detection
DE112018001213T5 (en) Power conversion device, motor drive unit and electric power steering device
WO2009036711A2 (en) The method of setting the decisive parameters of a track circuit with a digital track receiver and a power supply end to achieve higher resistance against endangering currents
AU2020273311B2 (en) Current reduction system for inverters connected to a common bus
WO2012048939A2 (en) Method for monitoring the charging mode of an energy store in a vehicle and charging system for charging an energy store in a vehicle
WO2015055457A2 (en) Multi-system power converter arrangement
DE102015201227A1 (en) Gate drive circuit
DE102019128441A1 (en) Arrangement and method for monitoring an electrical safety interlock
WO2017220242A1 (en) Combined common- and differential-mode intermediate circuit filter of a motor inverter
CN111315615A (en) Vehicle charger including DC/DC converter
RU2736532C1 (en) Electric network for rail vehicle, rail vehicle and operating method of electric network
DE102014015308B4 (en) Data communication via the supply voltage of a motor vehicle
EP3054548A1 (en) Control device for a multi-voltage onboard electric system
DE19939861A1 (en) Load control system for drive unit has driver circuit stopping operation of drive unit on basis of output signal from determination unit indicating short-circuit of signal input
DE102008056581A1 (en) Device for feeding a subscriber network with the electrical power of a supply network
EP3251187A1 (en) Protective device, arrangement and method for the distance protection of a contact line of a traction power supply
EP2965421A1 (en) Recognition of a wire-break fault during operation of a brushless dc motor
CN104584355A (en) Method for driving active bridge rectifier in the event of load shedding, rectifier arrangement and computer program product
DE102012203073A1 (en) Device for discharging intermediate circuit capacitor at high volt supply to supply electrical power to e.g. battery, has control unit for opening and closing switch while capacitor pole terminal is decoupled from load terminals
DE102016208801A1 (en) Control of a rotating field machine
DE102020128054A1 (en) Method for detecting an arcing fault in an electrical circuit arrangement and motor vehicle
DE102012109283A1 (en) Power converter of electrical machine used for feeding three-phase motor of motor vehicle, has electrical resistance that is provided in circuit portion at same time through decoupling element
CN113676116B (en) Active discharge circuit with fault diagnosis

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08801044

Country of ref document: EP

Kind code of ref document: A2

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref country code: SK

Ref document number: SK A

WWE Wipo information: entry into national phase

Ref document number: 2010/04953

Country of ref document: TR

122 Ep: pct application non-entry in european phase

Ref document number: 08801044

Country of ref document: EP

Kind code of ref document: A2