CN115384587A - Fault analysis method and system applied to eight-wire turnout action and indication circuit - Google Patents
Fault analysis method and system applied to eight-wire turnout action and indication circuit Download PDFInfo
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- CN115384587A CN115384587A CN202210923229.7A CN202210923229A CN115384587A CN 115384587 A CN115384587 A CN 115384587A CN 202210923229 A CN202210923229 A CN 202210923229A CN 115384587 A CN115384587 A CN 115384587A
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- 238000000034 method Methods 0.000 claims abstract description 51
- 238000003745 diagnosis Methods 0.000 claims abstract description 50
- 238000010586 diagram Methods 0.000 claims description 17
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- 238000012423 maintenance Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000012300 Sequence Analysis Methods 0.000 description 1
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- 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
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
- B61L5/06—Electric devices for operating points or scotch-blocks, e.g. using electromotive driving means
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Abstract
The invention discloses a fault analysis method and a system applied to eight-wire turnout action and indication circuits, wherein the method comprises the following steps: a fault diagnosis and analysis method based on a turnout action power curve; a fault diagnosis method based on the action time sequence of a turnout relay; a fault diagnosis method based on turnout indication voltage; provided is a fault diagnosis method based on turnout action voltage. The invention can accurately position various faults in the eight-wire turnout circuit, provides convenience for maintaining the eight-wire turnout circuit and greatly saves the fault repairing time.
Description
Technical Field
The invention relates to the technical field of fault diagnosis of turnout actions and indicating circuits, in particular to a fault analysis method and a fault analysis system applied to eight-wire turnout actions and indicating circuits.
Background
A switch is a device that diverts a rolling stock from one track to or over another track and is an important component of the track. In the traditional turnout control, a five-wire turnout circuit is adopted, and in order to solve the problem of turnout circuit faults caused by arc discharge of a 2DQJ relay contact in a five-wire turnout control circuit of an alternating current switch machine, an eight-wire turnout circuit with an action circuit and a display circuit separated is provided in the industry. With the popularization and application of the eight-wire turnout circuit, how to quickly locate and repair the fault when the circuit fails becomes the maintenance difficulty of the eight-wire turnout circuit.
Disclosure of Invention
The present invention is directed to solving, at least in part, one of the technical problems in the related art. Therefore, a first object of the present invention is to provide a fault analysis method applied to an eight-wire switch operation and indication circuit, which can accurately locate various faults in an eight-wire switch circuit and provide convenience for maintenance of the eight-wire switch circuit.
In order to achieve the purpose, the invention is realized by the following technical scheme:
a fault analysis method applied to eight-wire turnout action and indication circuits comprises the following steps:
acquiring the action state of a starting relay in an eight-wire turnout circuit, judging whether the turnout is in fault when in action according to the action state, and outputting turnout fault opportunity judgment result information;
and carrying out fault diagnosis analysis on the turnout action circuit and the indication circuit according to the turnout fault opportunity judgment result information.
Optionally, the step of determining whether the switch is in fault when the switch is operated according to the operating state, and performing fault diagnosis and analysis on the switch indicating circuit or the operating circuit according to the switch fault time determination result information includes:
when the starting relay is in a non-suction state, outputting fault judgment result information when the turnout does not act, and performing fault diagnosis and analysis on the turnout indication circuit; and when the starting relay is in a sucking-up state, outputting fault judgment result information during turnout action, and performing fault diagnosis and analysis on an action circuit.
Optionally, a first common line and a representation line are provided in the switch representation circuit, and the step of performing fault diagnosis analysis on the switch representation circuit includes:
acquiring an alternating voltage and a direct voltage between the first common line and the representation line in the turnout representation circuit;
and carrying out fault location on at least one fault of an indoor and outdoor circuit fault, an indoor capacitor fault and an indoor relay fault according to the representation alternating-current voltage and the representation direct-current voltage, wherein the indoor and outdoor circuit fault comprises an indoor and outdoor open circuit fault and an outdoor mixed line fault.
Optionally, the step of performing fault location on at least one fault of an indoor and outdoor circuit fault, an indoor capacitor fault and an indoor relay fault according to the representative ac voltage and the representative dc voltage includes:
when the representation alternating-current voltage and the representation direct-current voltage are both zero, determining an indoor open-circuit fault;
when the amplitude of the representing alternating-current voltage is larger than a first preset value and smaller than a second preset value and the representing direct-current voltage is smaller than the first preset value, determining an outdoor mixed line fault;
when the amplitude of the representative alternating-current voltage is larger than a third preset value and smaller than a fourth preset value, and the representative direct-current voltage is larger than the third preset value and smaller than a fifth preset value, determining that the relay capacitor fault is represented indoors, wherein the fifth preset value is smaller than the fourth preset value;
when the amplitude value of the representative alternating-current voltage is larger than a sixth preset value and the representative direct-current voltage is larger than a seventh preset value, determining that the indoor representative relay is open-circuited, wherein the sixth preset value is larger than the seventh preset value, and the seventh preset value is larger than the fourth preset value;
and when the amplitude of the representative alternating-current voltage is greater than the sixth preset value and smaller than the eighth preset value and the representative direct-current voltage is smaller than a ninth preset value, determining an outdoor open-circuit fault, wherein the ninth preset value is greater than the third preset value and smaller than the fifth preset value.
Optionally, the step of performing fault diagnosis and analysis on the turnout operating circuit includes:
acquiring an action time sequence of each relay in the eight-wire system turnout action circuit when the relay works normally, and constructing the action time sequence of the normal action of the relay;
and acquiring the current action time sequence of each relay, judging whether each relay normally acts according to the action time sequence chart and the action time sequence of each relay, and determining that the relay is a fault point when the relay does not normally act.
Optionally, when each relay in the eight-wire system turnout action circuit is normal, the method further includes: and analyzing the fault of the action line in the turnout action circuit.
Optionally, the switch action circuit is provided with a second common line and first to fourth action lines, and the step of analyzing the fault of the action line in the switch action circuit includes:
collecting three-phase output current of a three-phase alternating current power supply in the eight-wire system turnout action circuit and action states of a positioning and reversing relay;
and analyzing the fault of the action line in the turnout action circuit according to the three-phase current and the action state of the positioning and reversing relay.
Optionally, the step of analyzing a fault of an action line in the turnout action circuit according to the three-phase current and the action state of the positioning and reversing relay includes:
when the turnout is determined to move from the positioning to the reversing according to the action state of the positioning and reversing relay, the B-phase current in the three-phase currents is output through a third action line, and the C-phase current in the three-phase currents is output through a second action line, wherein when a plurality of periodic current sampling values on any one action line in the second shared line, the second action line and the third action line are all zero, and the current values sampled on the other two action lines are all larger than a preset current threshold value, the action line fault of which the current sampling value is zero is determined;
when the turnout is determined to move from the reverse position to the positioning according to the action state of the positioning and reversing relay, the B-phase current in the three-phase current is output through a first action line, and the C-phase current in the three-phase current is output through a fourth action line, wherein a plurality of periodic current sampling values on any one action line of the second common line, the first action line and the fourth action line are all zero, and when the current values sampled on the other two action lines are all larger than the preset current threshold value, the action line fault with the current sampling value being zero is determined.
Optionally, after determining that the action line fails, the method further includes: and determining the fault range of the action line.
Optionally, the step of determining the fault range of the action line includes:
determining that the turnout operates from positioning to reversing according to the action state of the positioning and reversing relay, acquiring the voltage between a second common line and a second action line when determining that the second common line has a fault, determining that the second common line has an outdoor fault when the voltage is greater than or equal to a preset voltage threshold, and determining that the second common line has an indoor fault when the voltage is less than the preset voltage threshold;
determining that the turnout moves from a positioning direction to a reversing direction according to the action state of the positioning and reversing relay, collecting the voltage between the second common line and the second action line or the third action line when determining that the second action line or the third action line has a fault, determining that the second action line or the third action line has an outdoor fault when the voltage is greater than or equal to a preset voltage threshold, and determining that the second action line or the third action line has an indoor fault when the voltage is less than the preset voltage threshold;
determining that the turnout is in reverse position to position according to the action state of the positioning and reversing relay, collecting the voltage between the second common line and the fourth action line when determining that the second common line has a fault, determining that the second common line has an outdoor fault when the voltage is greater than or equal to a preset voltage threshold, and determining that the second common line has an indoor fault when the voltage is less than the preset voltage threshold;
and determining that the turnout is positioned from a reverse position direction according to the action state of the positioning and reversing relay, collecting the voltage between the second common line and the first action line or the fourth action line when the first action line or the fourth action line is determined to be in fault, determining that the first action line or the fourth action line is in outdoor fault when the voltage is greater than or equal to a preset voltage threshold, and determining that the first action line or the fourth action line is in indoor fault when the voltage is less than the preset voltage threshold.
Optionally, after determining that the action line has no fault, the method further includes: and judging whether the turnout is in place or not.
Optionally, the step of determining whether the switch is in place includes:
acquiring turnout action current signals and voltage signals, and obtaining turnout action power signals according to the turnout action current signals and the voltage signals;
drawing a turnout action power curve according to the turnout action power signal, acquiring a corresponding turnout action power reference curve, comparing the turnout action power curve with the turnout action power reference curve, and determining that the turnout action is in place when the total length of the turnout action power curve and the tail length of the curve return-to-zero value are consistent with the total length of the turnout action power reference curve and the tail length of the curve return-to-zero value.
Optionally, the method further includes:
and when the eight-wire turnout circuit fails when the turnout is in place, returning to the step of performing fault diagnosis and analysis on the turnout indication circuit, and when the eight-wire turnout circuit fails when the turnout is not in place, returning to the step of performing fault diagnosis and analysis through the action circuit.
Optionally, the method further includes: after the fault position is determined, a fault mark is also set at a corresponding position in the eight-wire turnout circuit diagram.
In order to achieve the above object, a second aspect of the present invention provides a fault analysis system applied to an eight-wire switch operation and indication circuit, including:
the acquisition module is used for acquiring the action state of a starting relay in the eight-wire turnout circuit, judging whether the turnout is in fault when acting according to the action state and outputting turnout fault opportunity judgment result information;
and the fault diagnosis analysis module is connected with the acquisition module and is used for carrying out fault diagnosis analysis on the turnout indication circuit or the action circuit according to the turnout fault opportunity judgment result information.
The invention has at least the following technical effects:
the invention judges the turnout fault time by starting the action state of the relay when the turnout action and the indication circuit are in fault, and provides a method for fault diagnosis and how to specifically diagnose the turnout indication circuit when the turnout fault time is determined to be the fault when the turnout is not in action, and provides a method for fault diagnosis of each relay in the turnout circuit in the eight-wire system and how to judge the fault point of the relay according to the action time sequence when the turnout fault time is determined to be the fault when the turnout fault time is determined to be the turnout action, and also provides a method for fault location of the action line in the turnout action circuit and location of the fault range of the action line after the relay is determined to be fault-free, and after the action line is determined to be fault-free, the invention also provides a method for fault judgment of whether the turnout is in place or not, and provides a fault analysis method for fault after the turnout action is in place and fault is not in place after the turnout action, therefore, the invention can realize accurate location of the fault relay, the fault range of the indication circuit and the fault range of the action circuit, provide convenience for maintenance of the eight-wire system circuit, and greatly reduce the fault restoration time of the turnout, and reduce the influence of the turnout on the operation of the turnout control circuit; in addition, after the fault position is determined, the fault mark is arranged at the corresponding position in the eight-wire turnout circuit diagram, so that maintenance personnel can be guided to quickly position and process the fault conveniently.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a flow chart of a fault analysis method applied to eight-wire turnout operation and presentation circuitry according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an operation circuit of a starting relay according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a switch indication circuit structure according to an embodiment of the present invention;
fig. 4 is a schematic diagram illustrating a signal acquisition of a relay operation timing sequence according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a turnout operating circuit according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a turnout operation current signal and voltage signal acquisition circuit according to an embodiment of the present invention;
fig. 7 is a block diagram of a fault analysis system applied to eight-wire switch operation and a representation circuit according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to the present embodiments, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
The invention provides a fault diagnosis and analysis method based on an eight-wire system turnout control circuit, wherein the eight-wire system turnout action and indication circuit in the embodiment of the invention is the conventional general eight-wire system turnout control circuit, namely the fault diagnosis and analysis method is applied to the eight-wire system turnout control circuit. A fault analysis method applied to the eight-wire system switch operation and the indicating circuit of the present embodiment is described below with reference to the drawings.
Fig. 1 is a flowchart of a fault analysis method applied to eight-wire switch operation and a representation circuit according to an embodiment of the present invention. As shown in fig. 1, the method includes:
step S1: the method comprises the steps of obtaining the action state of a starting relay in an eight-wire turnout circuit, judging whether the turnout is in fault when acting according to the action state, and outputting turnout fault time judging result information.
Fig. 2 is a structure diagram of a local circuit in an eight-wire switch circuit, and as shown in fig. 2, the operation state of a starting relay, i.e., 1DQJ-1, can be acquired so as to determine whether a switch is in operation or not according to the operation state of 1DQJ-1, and output corresponding switch failure timing determination result information.
Step S2: and carrying out fault diagnosis and analysis on the turnout action circuit and the indication circuit according to the turnout fault time judgment result information.
The method comprises the following steps of judging whether the turnout is in fault when acting according to the action state, and carrying out fault diagnosis and analysis on the turnout indication circuit or the action circuit according to turnout fault opportunity judgment result information, wherein the method comprises the following steps:
when the starting relay is in a non-suction state, outputting fault judgment result information when the turnout is not in action, and performing fault diagnosis and analysis on a turnout indication circuit; when the starting relay is in a sucking-up state, the fault judgment result information during turnout action is output, and fault diagnosis and analysis are carried out on an action circuit.
Specifically, when the action state of the 1DQJ-1 is in a non-absorption state, the turnout fails, the fault judgment result information when the turnout is not in action is output, and when the action state of the 1DQJ-1 is in an absorption state, the turnout fails, the fault judgment result information when the turnout is in action is output. When the fault judgment result information when the turnout does not act is output, the fault analysis can be carried out on the turnout indication circuit, and when the fault judgment result information when the turnout acts is output, the action time sequence of the relay can be analyzed so as to determine the fault point of the relay.
In this embodiment, the switch indication circuit is provided with a first common line and an indication line, and the step of performing fault diagnosis analysis on the switch indication circuit includes: collecting the representation alternating voltage and the representation direct voltage between a first common line and a representation line in a turnout representation circuit; and carrying out fault location on at least one fault of an indoor and outdoor circuit fault, an indoor capacitor fault and an indoor relay fault according to the representation alternating current voltage and the representation direct current voltage, wherein the indoor and outdoor circuit fault comprises an indoor and outdoor open circuit fault and an outdoor mixed line fault.
Fig. 3 is a schematic diagram of a switch indication circuit structure according to an embodiment of the present invention. As shown in fig. 3, the switch indication circuit is provided with a first common line X8 and indication lines such as a positioning indication line X6 and a flip indication line X7. In this embodiment, the positioning between X6 and X8 may be collected to represent ac voltage and the positioning to represent dc voltage, of course, the inversion between X7 and X8 may be collected to represent ac voltage and the inversion to represent dc voltage, and then the indoor and outdoor circuit faults, the indoor capacitor C1 fault, and the indoor relay DBJ fault may be located according to the positioning to represent ac voltage and the positioning to represent dc voltage, or the indoor and outdoor circuit faults, the indoor capacitor C2 fault, and the indoor relay FBJ fault may be located according to the inversion to represent ac voltage and the inversion to represent dc voltage.
The method comprises the following steps of carrying out fault location on at least one fault of indoor and outdoor circuit faults, indoor capacitor faults and indoor relay faults according to the representation alternating current voltage and the representation direct current voltage, and comprises the following steps: when the alternating voltage and the direct voltage are both zero, determining an indoor open-circuit fault; when the amplitude of the alternating current voltage is larger than a first preset value and smaller than a second preset value and the direct current voltage is smaller than the first preset value, determining an outdoor mixed line fault; when the amplitude value of the alternating current voltage is larger than a third preset value and smaller than a fourth preset value, and the direct current voltage is larger than the third preset value and smaller than a fifth preset value, determining that the relay capacitor fault is represented indoors, wherein the fifth preset value is smaller than the fourth preset value; when the amplitude value of the alternating voltage is larger than a sixth preset value and the direct voltage is larger than a seventh preset value, the fact that the relay is open-circuited indoors is determined, wherein the sixth preset value is larger than the seventh preset value, and the seventh preset value is larger than the fourth preset value; and when the amplitude value of the alternating current voltage is larger than a sixth preset value and smaller than an eighth preset value and the direct current voltage is smaller than a ninth preset value, determining the outdoor open-circuit fault, wherein the ninth preset value is larger than the third preset value and smaller than a fifth preset value.
As shown in fig. 3, the present embodiment is described by taking positioning ac voltage and positioning dc voltage as examples, and if the positioning ac voltage and the positioning dc voltage are both zero, it is determined that the switch indicates an open-circuit fault in the circuit room; if the positioning indicates that the amplitude of the alternating current voltage is larger than a first preset value 1V and smaller than a second preset value 2V, and the positioning indicates that the direct current voltage is smaller than the first preset value 1V, determining an outdoor mixed line fault; if the positioning indicates that the amplitude of the alternating-current voltage is larger than a third preset value by 5V and smaller than a fourth preset value by 40V, and the positioning indicates that the direct-current voltage is larger than the third preset value by 5V and smaller than a fifth preset value by 35V, it can be determined that the relay capacitor C1 is in a fault indoor; if the positioning indicates that the amplitude of the alternating voltage is greater than the sixth preset value by 90V and the positioning indicates that the direct voltage is greater than the seventh preset value by 55V, determining that the indoor relay DBJ is open; and if the positioning indicates that the amplitude of the alternating current voltage is greater than the sixth preset value by 90V and is less than the eighth preset value by 120V, and the positioning indicates that the direct current voltage is less than the ninth preset value by 10V, determining that the turnout indicates the outdoor open-circuit fault of the circuit.
In one embodiment of the present invention, the step of performing fault diagnosis and analysis on the switch action circuit includes: acquiring an action time sequence of each relay in an eight-wire turnout action circuit when the relay works normally, and constructing to obtain an action time sequence chart of the normal action of the relay; and acquiring the current action time sequence of each relay, judging whether each relay normally acts according to the action time sequence chart and the action time sequence of each relay, and determining the relay as a fault point when the relay does not normally act.
As shown in fig. 2 and 4, the operation timing signals of the relays in fig. 2 may be collected by the collectors in fig. 4. For example, the 2DQJ switch collector in fig. 4 can transmit a laser signal through its TX port, when the 2DQJ relay is operated, the relay operation position can shield the laser signal, so that the RX port cannot receive the folded laser signal, and thus the operation timing signal of 2DQJ is obtained, and certainly, other schemes for collecting the operation timing signal can be implemented by setting the 2DQJ switch collector and the 2DQJ relay operation position. The switch collector KGL1 or KGL2 can determine whether 1DQJ or 1DQJF operates by determining whether 3 ports thereof send 12V operation signals, thereby obtaining operation timing signals of 1DQJ or 1 DQJF.
In this embodiment, after obtaining the action timing sequence signal when each relay normally works, an action timing sequence diagram in which each relay sequentially acts may be constructed, then the action timing sequence of each current relay is sequentially obtained, and whether the current relay normally acts is determined according to the action timing sequence diagram, and when the relay does not normally act, the relay is determined to be a fault point.
For example, the operation timing sequence analysis can be performed on a 1DQJ excitation circuit, a 2DQJ pole switching circuit and a 1DQJ self-closing circuit, specifically referring to fig. 2, when the relay SJ and FCJ/DCJ relay are anti-overtime, 1DQJ-1 is sucked up, 1DQJF-1 is sucked up, 2DQJ-1 is pole switched, and 2DQJ-1 is pole switched, the phase-failure protector DBQ (not shown in fig. 2) outputs 24V voltage, the relay BHJ (not shown in fig. 2) is sucked up, and the relay QDJ is in a normally-sucked state, so that 1DQJ-1 is self-closed. The action time sequence of each relay is the action time sequence when the relay works normally, when a certain relay does not work normally according to the action time sequence, the fault of the relay can be determined, for example, after the reverse overtake of the relay SJ and the FCJ/DCJ relay, 1DQJ-1 is not sucked up, the fault of 1DQJ-1 can be determined.
In an embodiment of the present invention, when each relay in the eight-wire system turnout operation circuit is normal, the method further includes: and analyzing the fault of the action line in the turnout action circuit.
In this embodiment, the switch operating circuit is provided with a second common line and first to fourth operating lines, and the step of analyzing the fault of the operating line in the switch operating circuit includes: acquiring three-phase output current of a three-phase alternating current power supply in an eight-wire system turnout action circuit and action states of a positioning and reversing relay; and analyzing the fault of the action line in the turnout action circuit according to the three-phase current and the action state of the positioning and reversing relay.
The method comprises the following steps of carrying out fault analysis on an action line in a turnout action circuit according to the action states of three-phase current and a fixed-reverse relay, wherein the fault analysis comprises the following steps:
when the turnout is determined to move from the positioning to the reversing according to the action state of the positioning and reversing relay, the B-phase current in the three-phase current is output through the third action line, and the C-phase current in the three-phase current is output through the second action line, wherein when a plurality of periodic current sampling values on any one action line of the second common line, the second action line and the third action line are all zero, and the current values sampled on the other two action lines are all larger than a preset current threshold value, the action line fault with the current sampling value being zero is determined.
When the turnout is determined to be in the positioning action from the reverse position direction according to the action state of the positioning and reversing relay, the B-phase current in the three-phase current is output through the first action line, and the C-phase current in the three-phase current is output through the fourth action line, wherein when a plurality of periodic current sampling values on any one action line in the second shared line, the first action line and the fourth action line are all zero, and the action line fault of which the current sampling value is zero is determined when the current values sampled on the other two action lines are all larger than the preset current threshold value.
As shown in fig. 5, a phase a current of the three-phase ac power supply is output through the second common line X1, a phase B current of the three-phase ac power supply is output through the first operation line X2 or the third operation line X4, and a phase C current of the three-phase ac power supply is output through the second operation line X3 or the fourth operation line X5, where the phase B current and the phase C current are specifically output through the operation lines, depending on the operation states of the positioning relay DBJ and the reversing relay FBJ.
When the turnout is determined to move from the positioning to the reversing according to the action state of the positioning and reversing relay, B-phase current in three-phase current is output through a third action line X4, C-phase current in the three-phase current is output through a second action line X3, wherein a plurality of periodic current sampling values, namely current sampling values of a plurality of collecting points, on any one action line of a second common line X1, the second action line X3 and the third action line X4 are all zero, and when the current values sampled on the other two action lines are all larger than a preset current threshold value, such as 1A, the action line fault of which the current sampling value is zero can be determined.
For example, if the sampling current value of the second common line X1 is 0 and the sampling current values of the second operating line X3 and the third operating line X4 are both greater than 1A, it is determined that the second common line X1 is defective.
In one embodiment of the invention, after determining the action line fault, the method further comprises: and determining the fault range of the action line.
The step of determining the fault range of the action line comprises the following steps:
and determining that the turnout moves from the positioning to the reversing according to the action state of the positioning and reversing relay, collecting the voltage between the second common line X1 and the second action line X3 when determining that the second common line X1 has a fault, determining that the second common line X1 has an outdoor fault when the voltage between the X1 and the X3 is greater than or equal to a preset voltage threshold value 80V, and determining that the second common line X1 has an indoor fault when the voltage is less than the preset voltage threshold value 80V.
Determining that the turnout moves from a positioning direction to a reversing direction according to the action state of the positioning and reversing relay, collecting the voltage between the second common line X1 and the second action line X3 or the third action line X4 when determining that the second action line X3 or the third action line X4 has a fault, determining that the second action line X3 or the third action line X4 has an outdoor fault when the voltage between the X1 and the X3 or the voltage between the X1 and the X4 is greater than or equal to a preset voltage threshold value 80V, and determining that the second action line X3 or the third action line X4 has an indoor fault when the voltage is less than the preset voltage threshold value 80V.
And determining that the turnout is in reverse position to positioning action according to the action state of the positioning and reversing relay, acquiring the voltage between the second common line X1 and the fourth action line X5 when determining that the second common line X1 has a fault, determining that the second common line X1 has an outdoor fault when the voltage between the X1 and the X5 is greater than or equal to a preset voltage threshold value 80V, and determining that the second common line X1 has an indoor fault when the voltage is less than the preset voltage threshold value 80V.
Determining that the turnout moves from a reverse position direction to a positioning action according to the action state of a positioning reverse relay, collecting the voltage between a second common line X1 and a first action line X2 or a fourth action line X5 when determining that the first action line X2 or the fourth action line X5 has a fault, determining that the first action line X2 or the fourth action line X5 has an outdoor fault when the voltage between the X1 and the X2 or the X1 and the X5 is greater than or equal to a preset voltage threshold value 80V, and determining that the first action line X2 or the fourth action line X5 has an indoor fault when the voltage is less than the preset voltage threshold value 80V.
After determining that the action line is fault-free, the method further comprises: and judging whether the turnout is in place or not.
Wherein, whether act on the step of carrying out fault diagnosis to the switch in place, include:
acquiring turnout action current signals and voltage signals, and obtaining turnout action power signals according to the turnout action current signals and the voltage signals; and drawing a turnout action power curve according to the turnout action power signal, acquiring a corresponding turnout action power reference curve, comparing the turnout action power curve with the turnout action power reference curve, and determining that the turnout action is in place when the total length of the turnout action power curve and the tail length of the curve return-to-zero value are consistent with the total length of the turnout action power reference curve and the tail length of the curve return-to-zero value.
As shown in fig. 6, a three-phase turnout action current signal and a three-phase turnout action voltage signal can be acquired through a three-phase turnout action power collector, a turnout action power signal is obtained, and then a turnout action power curve is obtained according to the turnout action power signal, so that whether turnout action is in place or not can be determined according to the turnout action power curve and a turnout action power reference curve. If the fault is determined after the turnout is in place, fault diagnosis and analysis are carried out on the turnout indication circuit, and if the fault is determined that the turnout is not in place, fault diagnosis and analysis are carried out on the relay through the action time sequence.
It should be noted that after the fault location is determined, a fault flag may also be set at a corresponding location in the eight-wire switch circuit diagram. For example, the fault position can be marked or highlighted dynamically by a red line in the interface of the turnout action and the representation circuit diagram according to the analysis result, so as to guide maintenance personnel to quickly locate and process the fault.
Fig. 7 is a block diagram of a fault analysis system applied to eight-wire switch operation and a representation circuit according to an embodiment of the present invention. As shown in fig. 7, the fault analysis system 10 applied to the eight-wire switch action and representation circuit includes an acquisition module 11 and a fault diagnosis analysis module 12.
The acquisition module 11 is used for acquiring an action state of a starting relay in the eight-wire turnout circuit, judging whether a turnout is in fault when the turnout acts according to the action state, and outputting turnout fault time judgment result information; the fault diagnosis and analysis module 12 is connected to the acquisition module 11, and the fault diagnosis and analysis module 12 is configured to perform fault diagnosis and analysis on the turnout indication circuit or the operating circuit according to the turnout fault timing determination result information.
Specifically, the obtaining module 11 may obtain an action state of the start relay, and determine whether the turnout is a fault when the turnout is in action or a fault when the turnout is not in action. When the starting relay is not sucked up, the turnout is in fault, the fault is judged to be in non-action state at the moment, and fault judgment result information is output when the turnout is not in action. When the starting relay is sucked up, the turnout is in fault, and the fault is judged to be in fault when the turnout acts at the moment and fault judgment result information when the turnout acts is output.
And after receiving the information of the fault judgment result when the turnout does not act, the fault diagnosis analysis module 12 starts to analyze the fault of the turnout indication circuit. Specifically, the fault diagnosis and analysis module 12 may determine that the fault is an indoor cable fault, an outdoor cable fault, an indoor capacitance fault, or an indoor relay fault according to the acquired switch indication voltage.
The fault diagnosis and analysis module 12 can analyze the fault of the turnout action circuit after receiving the fault judgment result information during turnout action. Specifically, the fault diagnosis and analysis module 12 may analyze whether the switch relay is a relay fault according to the collected switch relay action time sequence. If the relay is normal, the fault diagnosis and analysis module 12 can judge which specific action lines of X1\ X2\ X3\ X4\ X5 have faults according to the collected A/B/C three-phase current value and the turnout action direction, and can analyze whether the faults are indoors or outdoors according to the collected turnout action voltage so as to position the fault range. If the action lines of X1\ X2\ X3\ X4\ X5 are normal, the fault diagnosis and analysis module 12 can judge whether the turnout is in place according to the turnout action power curve, if the turnout is judged to be in place and then has a fault, the turnout indication circuit can be analyzed, and if the turnout is judged to be in place and has no fault, the relay action time sequence can be analyzed.
It should be noted that, for a specific implementation of the fault analysis system applied to the eight-wire system turnout operation and the indication circuit in this embodiment, reference may be made to the above specific implementation of the fault analysis method applied to the eight-wire system turnout operation and the indication circuit, and details are not described here again to avoid redundancy.
In conclusion, the invention judges the turnout fault time by starting the action state of the relay when the turnout operates and indicates that the circuit has a fault, provides a method for carrying out fault diagnosis and specific how to diagnose the turnout indication circuit when the turnout fault time is determined to be the fault when the turnout does not operate, provides a method for carrying out fault diagnosis on each relay in the turnout circuit in the eight-wire system and how to judge the fault point of the relay according to the action time sequence when the turnout fault time is determined to be the fault when the turnout operates, and also provides a method for carrying out fault positioning on the action line in the turnout action circuit and positioning the fault range of the action line after the relay does not have the fault after determining that the action line has no fault, and provides a method for analyzing the faults after the turnout operates in place and the faults of the turnout are not reached, thereby the invention can realize the accurate positioning of the fault relay, the fault range of the circuit and the fault range of the action circuit after confirming that the turnout operates in place, provides convenience for the maintenance of the turnout circuit in the eight-wire system, greatly reduces the fault of the turnout, and reduces the fault of the turnout operation of the turnout, and reduces the turnout; in addition, after the fault position is determined, the fault mark is arranged at the corresponding position in the eight-wire turnout circuit diagram, so that the maintenance personnel can be conveniently guided to quickly position and process the fault.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
While the present invention has been described in detail with reference to the preferred embodiments, it should be understood that the above description should not be taken as limiting the invention. Various modifications and alterations to this invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be determined from the following claims.
Claims (15)
1. A fault analysis method applied to eight-wire turnout action and indication circuits is characterized by comprising the following steps:
acquiring the action state of a starting relay in an eight-wire turnout circuit, judging whether the turnout is in fault when acting according to the action state, and outputting turnout fault opportunity judgment result information;
and carrying out fault diagnosis analysis on the turnout action circuit and the indication circuit according to the turnout fault opportunity judgment result information.
2. The method for analyzing the malfunction of the switch operating and indicating circuit in the eight-wire system according to claim 1, wherein the step of determining whether the switch is in operation based on the operating state and performing the malfunction diagnosis and analysis of the switch indicating circuit or the operating circuit based on the switch malfunction timing determination result information comprises:
when the starting relay is in a non-suction state, outputting fault judgment result information when the turnout does not act, and performing fault diagnosis and analysis on the turnout indication circuit; and when the starting relay is in a sucking-up state, outputting fault judgment result information during turnout operation, and performing fault diagnosis and analysis on an operation circuit.
3. The method for analyzing a fault applied to an eight-wire switch operating and indicating circuit according to claim 2, wherein a first common line and an indicating line are provided in the switch indicating circuit, and the step of analyzing the switch indicating circuit for a fault diagnosis includes:
acquiring an alternating voltage and a direct voltage between the first common line and the representation line in the turnout representation circuit;
and carrying out fault location on at least one fault of indoor and outdoor circuit faults, indoor capacitance faults and indoor relay faults according to the representation alternating-current voltage and the representation direct-current voltage, wherein the indoor and outdoor circuit faults comprise indoor and outdoor open circuit faults and outdoor mixed line faults.
4. The method for analyzing faults applied to eight-wire turnout operations and presentation circuits according to claim 3, wherein said step of fault locating at least one of an indoor and outdoor circuit fault, an indoor capacitance fault and an indoor relay fault based on said representative ac voltage and said representative dc voltage comprises:
when the representation alternating-current voltage and the representation direct-current voltage are both zero, determining an indoor open-circuit fault;
when the amplitude value of the representative alternating-current voltage is greater than a first preset value and smaller than a second preset value and the representative direct-current voltage is smaller than the first preset value, determining an outdoor mixed line fault;
when the amplitude value of the representative alternating-current voltage is larger than a third preset value and smaller than a fourth preset value, and the representative direct-current voltage is larger than the third preset value and smaller than a fifth preset value, determining that the indoor relay capacitor fault is represented, wherein the fifth preset value is smaller than the fourth preset value;
when the amplitude of the alternating-current voltage is larger than a sixth preset value and the direct-current voltage is larger than a seventh preset value, determining that the relay is open-circuited indoors, wherein the sixth preset value is larger than the seventh preset value, and the seventh preset value is larger than the fourth preset value;
and when the amplitude of the representative alternating-current voltage is greater than the sixth preset value and smaller than the eighth preset value and the representative direct-current voltage is smaller than a ninth preset value, determining an outdoor open-circuit fault, wherein the ninth preset value is greater than the third preset value and smaller than the fifth preset value.
5. The fault analysis method applied to the eight-wire switch actuating and indicating circuit according to claim 2, wherein the step of performing fault diagnosis analysis on the switch actuating circuit comprises:
acquiring an action time sequence of each relay in the eight-wire system turnout action circuit when the relay works normally, and constructing the action time sequence of the normal action of the relay;
and acquiring the action time sequence of each current relay, judging whether each relay normally acts according to the action time sequence chart and the action time sequence of each relay, and determining that the relay is a fault point when the relay does not normally act.
6. The method of analyzing faults applied to an eight-wire switch actuating and indicating circuit as claimed in claim 5, wherein when each relay in the eight-wire switch actuating circuit is normal, the method further comprises: and analyzing the fault of the action line in the turnout action circuit.
7. The method for analyzing a fault applied to an eight-wire switch operation and indication circuit according to claim 6, wherein the switch operation circuit is provided with a second common line and first to fourth operation lines, and the step of analyzing a fault of an operation line in the switch operation circuit comprises:
collecting three-phase output current of a three-phase alternating current power supply in the eight-wire system turnout action circuit and the action state of a positioning and reversing relay;
and analyzing the fault of the action line in the turnout action circuit according to the three-phase current and the action state of the positioning and reversing relay.
8. The method for analyzing a fault applied to an eight-wire switch actuating and indicating circuit according to claim 7, wherein the step of analyzing a fault of an actuating line in the switch actuating circuit based on the three-phase current and the actuating state of the flip relay comprises:
when the turnout is determined to move from the positioning to the reversing according to the action state of the positioning and reversing relay, the B-phase current in the three-phase current is output through a third action line, and the C-phase current in the three-phase current is output through a second action line, wherein when a plurality of periodic current sampling values on any one action line of the second common line, the second action line and the third action line are all zero, and the current values sampled on the other two action lines are all larger than a preset current threshold value, the action line fault of which the current sampling value is zero is determined;
when the turnout is determined to move from the reverse position to the positioning according to the action state of the positioning and reversing relay, the B-phase current in the three-phase current is output through a first action line, and the C-phase current in the three-phase current is output through a fourth action line, wherein a plurality of periodic current sampling values on any one action line of the second common line, the first action line and the fourth action line are all zero, and when the current values sampled on the other two action lines are all larger than the preset current threshold value, the action line fault with the current sampling value being zero is determined.
9. A fault analysis method as claimed in claim 8 applied to an eight wire switch action and presentation circuit, wherein after determining an action wire fault, the method further comprises: and determining the fault range of the action line.
10. The method for analyzing faults applied to an eight wire switch action and presentation circuit as claimed in claim 9, wherein said step of determining the fault range of the action line comprises:
determining that the turnout moves from positioning to reversing according to the action state of the positioning and reversing relay, collecting the voltage between a second common line and the second action line when determining that the second common line has a fault, determining that the second common line has an outdoor fault when the voltage is greater than or equal to a preset voltage threshold, and determining that the second common line has an indoor fault when the voltage is less than the preset voltage threshold;
determining that the turnout moves from a positioning direction to a reversing direction according to the action state of the positioning and reversing relay, collecting the voltage between the second common line and the second action line or the third action line when determining that the second action line or the third action line has a fault, determining that the second action line or the third action line has an outdoor fault when the voltage is greater than or equal to a preset voltage threshold, and determining that the second action line or the third action line has an indoor fault when the voltage is less than the preset voltage threshold;
determining that the turnout moves from a reverse position to a positioning position according to the action state of the positioning and reversing relay, collecting the voltage between a second common line and a fourth action line when determining that the second common line has a fault, determining that the second common line has an outdoor fault when the voltage is greater than or equal to a preset voltage threshold, and determining that the second common line has an indoor fault when the voltage is less than the preset voltage threshold;
and determining that the turnout is in reverse position to position according to the action state of the positioning and reversing relay, acquiring the voltage between the second common line and the first action line or the fourth action line when the first action line or the fourth action line is determined to be in fault, determining that the first action line or the fourth action line is in outdoor fault when the voltage is greater than or equal to a preset voltage threshold, and determining that the first action line or the fourth action line is in indoor fault when the voltage is less than the preset voltage threshold.
11. The method for fault analysis as applied to an eight-wire switch action and presentation circuit as claimed in claim 8, wherein after determining that the action line is faultless, said method further comprises: and judging whether the turnout is in place or not.
12. The method for analyzing faults applied to an eight-wire switch actuating and indicating circuit as claimed in claim 11, wherein the step of determining whether the switch is in place comprises:
acquiring turnout action current signals and voltage signals, and obtaining turnout action power signals according to the turnout action current signals and the voltage signals;
and drawing a turnout action power curve according to the turnout action power signal, acquiring a corresponding turnout action power reference curve, comparing the turnout action power curve with the turnout action power reference curve, and determining that the turnout action is in place when the total length of the turnout action power curve and the tail length of the curve return-to-zero value are consistent with the total length of the turnout action power reference curve and the tail length of the curve return-to-zero value.
13. The method of fault analysis applied to an eight-wire switch action and presentation circuit as claimed in claim 12, wherein said method further comprises:
and when the eight-wire turnout circuit fails when the turnout is in place, returning to the step of performing fault diagnosis and analysis on the turnout indication circuit, and when the eight-wire turnout circuit fails when the turnout is not in place, returning to the step of performing fault diagnosis and analysis through the action circuit.
14. A method of fault analysis as claimed in claim 4 or 13 applied to eight-wire switch action and indicating circuits, the method further comprising: after the fault position is determined, a fault mark is also set at a corresponding position in the eight-wire turnout circuit diagram.
15. A fault analysis system for use with an eight-wire switch action and presentation circuit, comprising:
the acquisition module is used for acquiring the action state of a starting relay in the eight-wire turnout circuit, judging whether the turnout is in fault when acting according to the action state and outputting turnout fault opportunity judgment result information;
and the fault diagnosis analysis module is connected with the acquisition module and is used for carrying out fault diagnosis analysis on the turnout indication circuit or the action circuit according to the turnout fault opportunity judgment result information.
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| CN202210923229.7A CN115384587A (en) | 2022-08-02 | 2022-08-02 | Fault analysis method and system applied to eight-wire turnout action and indication circuit |
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