EP0734932B1 - Anordnung zum Überwachen von mit Drehstromantrieben verstellbaren Aussenanlagen - Google Patents

Anordnung zum Überwachen von mit Drehstromantrieben verstellbaren Aussenanlagen Download PDF

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Publication number
EP0734932B1
EP0734932B1 EP96103834A EP96103834A EP0734932B1 EP 0734932 B1 EP0734932 B1 EP 0734932B1 EP 96103834 A EP96103834 A EP 96103834A EP 96103834 A EP96103834 A EP 96103834A EP 0734932 B1 EP0734932 B1 EP 0734932B1
Authority
EP
European Patent Office
Prior art keywords
rotary
current
signal generator
phase
network
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP96103834A
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German (de)
English (en)
French (fr)
Other versions
EP0734932A3 (de
EP0734932A2 (de
Inventor
Gerhard Humer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alcatel Lucent SAS
Original Assignee
Alcatel Austria AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alcatel Austria AG filed Critical Alcatel Austria AG
Publication of EP0734932A2 publication Critical patent/EP0734932A2/de
Publication of EP0734932A3 publication Critical patent/EP0734932A3/de
Application granted granted Critical
Publication of EP0734932B1 publication Critical patent/EP0734932B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L7/00—Remote control of local operating means for points, signals, or track-mounted scotch-blocks
    • B61L7/06—Remote control of local operating means for points, signals, or track-mounted scotch-blocks using electrical transmission
    • B61L7/08—Circuitry

Definitions

  • the invention relates to an arrangement for monitoring with three-phase drives adjustable outdoor facilities, e.g. Turnouts, barriers, lifting or swing bridges, lock gates or the like.
  • three-phase line (s) leading to the outdoor system (s) or their wires and the three-phase drive in the outdoor system was given electrical test signals and the state and / or the position of the outdoor area and / or the Three-phase drive and / or the wires of the three-phase lines influence test signals or signals derived therefrom are detected as a measured variable and sent to an evaluation unit, e.g. one Computer, are fed and compared there in terms of agreement or deviation an expected value can be checked.
  • an evaluation unit e.g. one Computer
  • the invention relates to an arrangement for monitoring outdoor facilities of any kind in which three-phase drives are used to adjust the Outdoor system between defined end positions, which are monitored with limit switches to reach.
  • the arrangement according to the invention is usually located in a central office and The three-phase conductors run between the central station and the external system, which are used for feeding serve the three-phase drive, the current flow from switching devices in the center is controlled or from the central control cables lead to switching devices, e.g. Relay, in the three-phase conductors, with which switching devices on-site the electricity to the outdoor system is switchable.
  • the monitoring arrangement intervenes in the central office or at a location Central and external system on the three-phase drive supplying the external system Three-phase conductor, via which the position and / or the condition of the outdoor system is monitored.
  • the three-phase drive is used to convert the outdoor system, in particular a switch the four-phase three-phase conductor (R, S, T, N) three-phase current, with the in Three-phase drive arranged external system switching means, in particular switch limit switch, the Three-phase drive is usually started asymmetrically. After the Outside plant, especially the switch tongue, has left its end position, runs Three-phase drive three-phase symmetrical. After reaching the other end position usually switched off asymmetrically.
  • a device similar to an arrangement of the type mentioned is from DE-OS 37 15 478 known.
  • This facility which is constantly between the veins of the Three-phase line test voltages are switched and thus a sequential Signal detection takes place, requires an enormous amount of computing to do the different Test conditions to obtain essential measured variables. With every single measurement one Conductor loop sensed, into which a signal is fed, the deviation from or the Agreement with an expected value of this signal with regard to the state and / or the position of the outdoor area is evaluated.
  • an actuating and monitoring circuit is known from DL-PS 15 96 91, in which all information processing channels and information transmission channels are sequential be monitored operationally.
  • the continuous switching on of the measuring voltage and subsequent detection requires an extremely high load on the monitoring Computer system to make a redundant and safety-related clear decision come.
  • the number of external systems that can be monitored is therefore very limited; furthermore in the case of monitoring, the mains voltage is switched to the three-phase motor with low impedance, what safety considerations is undesirable.
  • there is an infeed of test signals in the wires of the three-phase line, which are connected to one another in the form of a conductor loop are switched so that the signal information or redundancy obtained is very low.
  • the invention has for its object to provide an arrangement for monitoring Three-phase drives to create adjustable outdoor facilities that are high reliability and Meets security requirements. Furthermore, this arrangement should be simple and for a larger number of outdoor facilities can be used without the Computer capacities have to be placed too high demands. Special goal of The invention is to provide an arrangement that enables a four-wire motor circuit, however without safety relay with forced operation.
  • the signal generator used is used alone or by the Signal generator in conjunction with the additional generator assigned to it together with the A network of cores of the three-phase line or the three-phase drive supplied with test signals creates the network in which the test signal initiated is based on the electrical networks detectable measurands in the wires (current) or between the wires (voltages Phase shifts) generated, so that redundant and diverse enough information for Can be made available to desired states or positions or errors to be able to detect with sufficient accuracy. So it is e.g. possible, end position of the outdoor area, Incorrect positions when operating the outdoor system (e.g. switch opened), errors in the Three-phase lines, errors in component drifts (fault detection) or the like. simple and high Monitor or determine reliability.
  • one wire is e.g. a check for a line break or a short circuit Roger that.
  • the condition of the outdoor facility would be e.g. a faulty, improper to understand the detected position (e.g. switch open). Be in the position of the outdoor area e.g. understood the end positions or an intermediate position.
  • one Variety of states and / or positions with the detected from the test signals derived measured variables are monitored.
  • the detected signals are pre-determined or predetermined target signals with proper function (expected values) compared and the comparison result is evaluated.
  • the signal generators used can not only be used during of the measuring process, but also during the times when the three-phase lines are live, remain connected without endangering the arrangement.
  • the test signals used can be selected such that they are safety-related no problems.
  • the arrangement according to the invention allows the use of any conventional measuring devices for determining the currents, voltages, phases and / or of further, derived measured variables. It can thus be robust and durable connectable measuring devices are used, which with the appropriate accuracy deliver the desired measured quantities.
  • the provided signal generator and at least three of the four available wires it is possible with the provided signal generator and at least three of the four available wires to set up a corresponding network for the existing three-phase line. It is advantageous if the signal generator is connected to all four three-phase lines, because in this case a larger number of measured variables is available for evaluation. In principle, however, it is also possible, if the signal generator is connected to only three wires, sufficient information about to get the fourth wire and the three-phase drive.
  • Signal generator can be provided at least one additional generator, the current distribution or the distribution of the measured variables in the entire network or in at least a partial area additionally influenced.
  • the procedure is such that it is fed in beforehand for certain Test signals the distribution of the measured variables in the wires of the three-phase line and in Three-phase drive for the target state is determined and saved.
  • Measured variables actually determined are compared with the stored target values and deviations of one Error evaluation fed.
  • the actually measured quantities with the stored Measured values for different positions and / or states of the outdoor installation match, this is considered a proper operating state.
  • Test signals or by coupling wires can be a measurement variable distribution, in particular Current distribution in the network can be achieved with low circuitry Redundancy or the greatest possible signal difference results in effort.
  • the state of the signal generator can be monitored by known state and / or known position of the outdoor system, the measured variable distribution is checked. You can see based on previous or subsequent measurements that the outdoor facility is working properly is in operation and that - provided the outdoor system is operating properly - If there are deviations in certain measured values, the conclusion can be drawn be that the signal generator is working incorrectly.
  • the logistics with which the measured variables occurring or the measured variable distribution are taken into account detection or monitoring of faults in the wires or in the outdoor system are evaluated in the form of a corresponding program in the evaluation unit or included a calculator.
  • FIG. 1 shows a schematic circuit diagram of an arrangement according to the invention.
  • the unit designated by the reference number A4 represents the outdoor system.
  • the switching devices S1, S2, S3, S4 for the three-phase lines can be in the central office or if they can be operated remotely - in the outdoor area A4 are located.
  • the three-phase drive with the motor windings W1 is located in the outdoor facility A4.
  • the neutral conductor L4 is connected to the wire A4 with the switching device S4.
  • limit switches ES1 and ES2 which are by corresponding control components from the external system, e.g. a switch, actuable and are switchable.
  • a switch By appropriately connecting and disconnecting the three-phase conductors or wires L1, L2 and L3 or the neutral conductor N with the appropriate position of the limit switches ES 1 and ES 2 can an adjustment movement of the outdoor system can be made in the desired direction
  • These limit switches ES 1, ES 2 are made robust and are stable mechanical device actuated. In the case of the switch, this device consists of a Pole connected to the switch tongues. The rod transfers the tongue position a mechanism that the switching path when reaching the end position (tongue is snug) increased. A small distance from the end position switches the respective one Limit switch.
  • the signal generator provided according to the invention also comprises, as shown in FIG. 1 Connections to the three-phase network or the three-phase conductors L1, L2, L3 and L4.
  • the Signal generator has resistors R1, R2, R3 and R4, through which the phases of the Three-phase network derived as test signals and fed to the outdoor system.
  • the high impedance resistors R1, R2, R3 and R4, which have a resistance value of preferably more than 10 k ⁇ the three-phase test signals derived from the three-phase network are converted into the four wires A1, A2, A3 and A4 initiated.
  • the resistances that lead to the outdoor area Veins A1, A2, A3, A4 and the drive system for the outdoor system are formed determined distribution of detectable electrical measured quantities.
  • phase-shifted three-phase test signals form in the wires currents I1, I2, I3 and I4 corresponding differential voltages U1, U2, U3, U12, U13, U23 off.
  • the currents and / or the voltages and / or possibly also occurring Phase shifts can be measured and evaluated. Since the test signals regarding Current, voltage and phase are known, can be deviations from expected measured variables Errors in the outdoor system, its drive, or the wires A1, A2, A3, A4 are detected and be evaluated.
  • the existing one in the case of FIG Mains voltage can be used to generate test signals.
  • This measurement method is based in particular on the principle that in the three-phase network (L1, L2, L3) and the neutral conductor (L4) already time-shifted measurement signals are available.
  • This has the advantage of being sequential Measuring methods become superfluous; in addition, the signal generator must also during a Adjustment movement of the external system, in which the three-phase network connects directly to the external system leading wires A1, A2, A3, A4 is switched on, not to be switched off, since only one high-impedance connection exists. It can even carry out the changeover in its phases (asymmetrical, symmetrical operation) can be observed. Errors can also be detected here become. This results in a fixed wiring and a correspondingly robust circuit low probability of error in the circuit itself. At the same time there are none Semiconductor components with low resistance connected to the EMC-loaded lines, so that a There is no need for EMC protection.
  • the signal generator SG with four connections to the four-wire Outdoor system leading three-phase line connected and at the same time a different signal is emitted at each output of the signal generator.
  • the network has a corresponding current distribution, voltage distribution and phase distribution out.
  • signal generators that do not have all the wires A1, A2, Feed in signals A3, A4 of the four-wire three-phase line leading to the outdoor system. It would be e.g. possible with an arrangement according to FIG. 1 to initiate test signals only in three wires.
  • At least one additional generator is required to form a network such as it e.g. 1 and 6 can be seen.
  • a resistance network forms the additional generator, which resistances couple the wires.
  • Additional generator ZG1 for example according to FIG. 1 by a transformer with coupled Coils SP1 and SP2 and a core K can be realized, the coils SP1 and SP2 and so that the lines in the outdoor system are coupled with each other and thus a current distribution in the individual lines.
  • ZG2 is a resistor and a diode Additional generator called. Sofeme from the signal generator test signals in only two wires the additional generators are mandatory. Soferne the Signal generator emits signals in three wires, additional generators are not absolutely necessary, However, if the additional generators are arranged, the number of measurable variables that can be evaluated can be increase.
  • additional generators have a measured variable distribution, in particular a Power distribution in the outdoor area A4 or the one connected to the three-phase drive Veins A1, A2, A3, A4 cause so that a sufficient number of measured variables for detection is available.
  • phase L3 is directly to wire A3 via high-resistance resistor R3 the three-phase line leading to the outdoor system.
  • To generate more Test signals are the phases L1 and L2 via high-resistance resistors R1 and R2 directly to the corresponding wires A1, A2 of the three-phase conductor leading to the external system are connected; the neutral conductor A4 leading to the external system is connected to the resistors Rg14 and Rg24 Three-phase phases L1 and L2 connected to generate the test signal.
  • FIGS. 1 and 2 can also be used when the three-phase network is on the outdoor system is switched on, sofme the resistors R1, R2, R3, R4 appropriate protection Offer. Otherwise, appropriate protection of the signal generators against the Three-phase voltages.
  • the signal generator SG comprises four individual generators.
  • the creation and weighting of the Test signals and the measured variables are different by using different Generator voltages UG1, UG2, UG3 and UG4 reached.
  • Each of the four individual generators gives a corresponding test signal in one of the wires A1, A2, A3, A4 of the four-wire to the outdoor system leading line.
  • Resistors R1, R2, R3 and R4 can be of different sizes be, which also affects the current distribution in the network.
  • the single ones Measured variables are determined by voltage and / or current and / or phase measurements.
  • the measuring devices used for this are in the simplest case relays or optocouplers which are used for given voltage and / or current values change their state, which state as a yes-no statement is evaluated.
  • the signal generator SG comprises two individual generators UG3 and UG4. About the same if necessary Large or different resistors R1, R2, R3 and R4 become corresponding Test signals are given in the four-wire line to the outdoor facility.
  • the two individual generators UG3, UG4 each generate a voltage of +60 and -60 volts, respectively, via the resistors R3 and R4 are connected to the wires A3, A4 of the three-phase line to the outdoor system.
  • To the Resistors R1 and R2 are no generators connected; cause these resistances nevertheless a current distribution in the wires A1, A2.
  • This signal generator is a diverse one Triple measurement possible, namely the combination of the voltage measurements U12-U13-U23 with I3-U14-U24.
  • These triple combinations e.g. from two computers, i.e. a calculator A and a computer B are evaluated, provide an error distance between the Orderly positions and between the fault location of the outdoor area, which for a variety of Use cases is sufficiently large.
  • FIG. 5 shows an arrangement according to the invention, in which the between the individual wires A1, A2, A3, A4 voltages are removed by means of residual current transducers become.
  • any measuring devices can be used to determine the measured variables become; the transducers shown here are characterized by high robustness and Dielectric strength and favorable EMC behavior due to the saturation properties of the Iron core.
  • This measuring method is based on the principle that in the three-phase network through the Phase shift between the individual phases and the neutral conductor is already automatic time-shifted measurement signals are available. The differential current is then very good evaluable measurement signals if the outdoor system or the network a characteristic State (end position). In the present case, the resistors R1, R2, R3 and R4 are not shown.
  • Fig. 6 shows an arrangement according to the invention, in which a network of measuring resistors at the interface to the outdoor facility or the wires A1, A2, A3, A4, which is used for Lead outside facility.
  • the signal generator carries a test signal +60 volts through the resistor R3 to wire A3, the second connection of the signal generator is with a connection value of 0 volts connected to wire A4 via resistor R4.
  • resistor R13, R14, R24, R34 and R12, R32 as well as R1 and R2 a network is formed, with which a current or Voltage or phase distribution is achieved, which has a corresponding measured variable distribution in the wires A1, A2, A3 A4 or between these wires.
  • This arrangement has the advantage that it can be measured by measuring a single voltage value it is possible to make a statement about the condition and / or the position of the entire outdoor area to meet; this is possible due to the selected resistance values of the individual resistors.
  • a particularly high level of information is provided by Measurement of the cross current in the diagonal A1-A2 is reached because the network is at this point behaves similar to a measuring bridge.
  • the number of resistors provided is a special one Kind of an additional generator, which together with the two wires A3, A4 connected signal generator a network with a corresponding measurement variable distribution causes.
  • the AC continuity test shown in Fig.7 (Fig.1, Fig.5) is a Special case of the measuring method according to Fig. 3.
  • This measuring method is based on the principle that in the three-phase network through the Phase shift between the individual phases and the neutral conductor is already automatic Delayed measured variables are available which can be detected accordingly.
  • the structure includes the three-phase coils, the limit switches and the wires of the Outdoor facility is not an admissible or usable network considered. Only with the addition according to the invention with a signal generator and if necessary, an additional generator achieves a network structure that is sufficient Number of measured values available.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
  • Burglar Alarm Systems (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Glass Compositions (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Control Of Electric Motors In General (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Protection Of Generators And Motors (AREA)
  • Control Of Multiple Motors (AREA)
  • Control Of Ac Motors In General (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)
EP96103834A 1995-03-28 1996-03-12 Anordnung zum Überwachen von mit Drehstromantrieben verstellbaren Aussenanlagen Expired - Lifetime EP0734932B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT557/95 1995-03-28
AT55795 1995-03-28
AT55795 1995-03-28

Publications (3)

Publication Number Publication Date
EP0734932A2 EP0734932A2 (de) 1996-10-02
EP0734932A3 EP0734932A3 (de) 1999-06-23
EP0734932B1 true EP0734932B1 (de) 2003-02-19

Family

ID=3493768

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96103834A Expired - Lifetime EP0734932B1 (de) 1995-03-28 1996-03-12 Anordnung zum Überwachen von mit Drehstromantrieben verstellbaren Aussenanlagen

Country Status (8)

Country Link
EP (1) EP0734932B1 (hu)
AT (1) ATE232805T1 (hu)
CZ (1) CZ89896A3 (hu)
DE (1) DE59610141D1 (hu)
HU (1) HUP9600677A3 (hu)
NO (1) NO961023L (hu)
PL (1) PL179295B1 (hu)
SK (1) SK39896A3 (hu)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE331650T1 (de) * 2004-05-07 2006-07-15 Cit Alcatel Elektronische weichensteuerung mit ueberwachung der weichenlage
ATE397846T1 (de) * 2004-06-10 2006-05-15 Alcatel Lucent Verfahren zur adernschlusserkennung für weichenantriebe
EP1724177A1 (de) * 2005-05-12 2006-11-22 Alcatel Zungenprüfschaltung, Zungenprüfsteuerung und Zungenprüfsystem für eine Weiche eines Schienennetzes

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3330869C2 (de) * 1983-08-26 1986-07-03 Siemens AG, 1000 Berlin und 8000 München Schaltung zum Erkennen von Erdschlüssen in den Speisekreisen von Drehstrom-Weichenantrieben
DE3404825C2 (de) * 1984-02-09 1989-01-12 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Schaltungsanordnung zur Steuerung und Sicherung einer durch eine Fernstelleinrichtung (Stellwerk) oder eine Ortsstelleinrichtung bedienbaren Weiche
DE3715478A1 (de) * 1987-05-06 1988-11-17 Licentia Gmbh Schaltungsanordnung zur ueberwachung einer weiche

Also Published As

Publication number Publication date
NO961023D0 (no) 1996-03-13
CZ89896A3 (en) 1996-10-16
EP0734932A3 (de) 1999-06-23
DE59610141D1 (de) 2003-03-27
HUP9600677A2 (en) 1997-05-28
NO961023L (no) 1996-09-30
PL313510A1 (en) 1996-09-30
PL179295B1 (pl) 2000-08-31
SK39896A3 (en) 1998-07-08
EP0734932A2 (de) 1996-10-02
HUP9600677A3 (en) 2000-11-28
ATE232805T1 (de) 2003-03-15
HU9600677D0 (en) 1996-05-28

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