CN109278802B - Alternating current turnout device, system and control method thereof - Google Patents
Alternating current turnout device, system and control method thereof Download PDFInfo
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- CN109278802B CN109278802B CN201811139273.9A CN201811139273A CN109278802B CN 109278802 B CN109278802 B CN 109278802B CN 201811139273 A CN201811139273 A CN 201811139273A CN 109278802 B CN109278802 B CN 109278802B
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Classifications
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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
- B61L5/062—Wiring diagrams
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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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- 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
- B61L5/10—Locking mechanisms for points; Means for indicating the setting of points
- B61L5/107—Locking mechanisms for points; Means for indicating the setting of points electrical control of points position
Abstract
The invention provides an alternating current turnout device, a system and a control method thereof, wherein the alternating current turnout device comprises a switch machine control part and a logic part, the switch machine control part comprises a driving part and a representation part which are mutually independent, and the driving part and the representation part can be in data connection with the logic part; the driving part is used for controlling the switch machine to execute the fixed rotation or reverse rotation action based on the control command of the logic part; the presentation part is used for collecting presentation information of the switch machine and sending the collected presentation information of the switch machine to the logic part. The invention provides an alternating current turnout device, an alternating current turnout system and a control method thereof, which effectively improve the reliability of turnout control and ensure the driving safety.
Description
Technical Field
The invention relates to the technical field of rail transit, in particular to an alternating current turnout device, an alternating current turnout system and a control method of the alternating current turnout device.
Background
The computer interlocking system which is put into use at present is a system which is driven and expressed by a gravity relay circuit at a driving execution layer after the computer completes interlocking operation. The system uses a large number of gravity relays, such as the ac switch control system according to the prior art shown in fig. 1, which includes a large number of components, such as a circuit breaker RD, a phase-loss protector DBQ, and a relay DQJ, and is very complicated. In manufacturing, due to the fact that a plurality of electronic devices are arranged, wiring is very complex, and welding spots are also large; in actual arrangement, the structure is complex, so that the occupied area is large; when in use, the control flow and the current flow are complex; when a fault occurs, finding and locating the fault is complex and requires periodic maintenance.
As shown in fig. 1, the current flow directions of the switch operating circuit are:
1) switch action power supply A → circuit breaker RD1 → phase-failure protector DBQ-S11-21→ start relay 1DQJ12-11→ switch machine motor W coil.
2) Switch action power supply B → circuit breaker RD2 → open-phase protector DBQ-S31-41→ start relay 1DQJF12-11→ start relay 2DQJ111-112→ switch contacts 43-44 → interrupter switch K → switch motor U coil.
3) Switch action power supply C → circuit breaker RD3 → open-phase protector DBQ-S51-61→1DQJF22-21→2DQJ121-122→ switch contacts 41-42 → switch motor V coil.
4) The phase sequence of the switch machine motor is W-U-V, and the switch machine motor rotates clockwise to drive the switch rail to move towards the positioning direction.
The current flow direction of a positive half cycle circuit of a power supply in the turnout indication circuit is as follows:
representing the terminal BD of the transformer 3 → the resistor R1 → 2DQJ22-21→2DQJ131-132→1DQJF13-11→2DQJ111-112→ the switch point 33-34 → the switch point 15-16 → the rectifier diode Z → the resistor R → the switch point 35-36 → the motor coil U → the motor coil W → 1DQJ11-13→ the transformer BD terminal 4.
The current flow direction of a power supply negative half cycle circuit in the turnout indication circuit is as follows:
representing the terminal BD of the transformer 3 → the resistor R1 → 1DQJ22-21→2DQJ131-132→DBJ4-1→ the point switch contact 11-12 → the motor coil V → the motor coil W → 1DQJ11-13→ the transformer BD terminal 4.
The general drive circuit of current switch control system does not separate with the presentation circuit, and the suitability is lower, and the security is not high moreover, influences driving safety and operation efficiency.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides an alternating current turnout device.
An alternating current turnout device comprising a switch machine control and a logic, the switch machine control comprising a drive part and a presentation part that are independent of each other, the drive part and the presentation part each being capable of data connection with the logic, wherein,
the driving part is used for controlling the switch machine to execute the fixed rotation or reverse rotation action based on the control command of the logic part;
the presentation part is used for collecting presentation information of the switch machine and sending the collected presentation information of the switch machine to the logic part.
Furthermore, the driving part comprises a three-phase power switch circuit, a three-phase current isolation acquisition circuit, a three-phase electronic switch circuit and a phase and wire system conversion circuit, wherein,
the three-phase power supply switch circuit is used for realizing on-off control of three-phase alternating current;
the three-phase current isolation acquisition circuit is used for realizing current acquisition of each phase of three-phase power, and is used for judging whether the three-phase power is complete and whether a point switch is driven in place;
the three-phase electronic switching circuit is used for improving the reliability of the three-phase power switching circuit and the phase and wire system conversion circuit;
the phase change and wire system conversion circuit is used for realizing phase change of three-phase power and carrying out multi-wire system conversion, and can be used for controlling a multi-wire system point switch.
Further, the three-phase power switch circuit comprises a switch circuit and a safety acquisition unit, wherein,
the switching circuit is used for executing opening and closing actions based on the control signals so as to realize on-off control of the three-phase alternating current;
and the safety acquisition unit is used for acquiring the switching state of the switching circuit.
Further, the commutation and line switching circuit includes a plurality of switching circuits, wherein,
each of the plurality of switching circuits is connected in parallel to two of the three-phase alternating current lines.
Further, the switching circuit comprises a switching unit, a control unit and a safety acquisition unit, wherein,
the switch unit can be opened or closed according to a control instruction of the control unit;
and the safety acquisition unit is used for acquiring the opening and closing states of the switch unit.
Furthermore, the driving part also comprises a three-phase current isolation acquisition circuit and a three-phase electronic switch circuit, wherein,
the three-phase current isolation acquisition circuit is used for determining whether each phase line in the three-phase electric line is abnormal and whether the point switch is driven in place;
and the three-phase electronic switch is used for controlling the on-off of a three-phase power line.
Further, the representation part comprises a representation electric control circuit and a representation acquisition and control circuit, wherein,
and the indicating electric control circuit is used for converting the two-phase high-voltage alternating current into the two-phase low-voltage alternating current.
The representation acquisition and control circuit is used for being connected with an internal shutter of the switch machine so as to acquire representation state information of the switch machine.
Further, the switch machine controls include a first switch machine control and a second switch machine control, the logic includes a first safety processing module and a second safety processing module, wherein,
the driving part and the representing part in the first switching machine control part can realize data connection with the first safety processing module and the second safety processing module;
the drive and presentation parts in the second switch machine control part can be in data connection with the first and second safety processing modules.
A dual train hot standby AC turnout system comprising a first AC turnout device and a second AC turnout device, each of the first and second AC turnout devices comprising logic, a first switch machine control and a second switch machine control, wherein,
the first switch machine control part in the first alternating current switch device and the first switch machine control part in the second alternating current switch device are of a two-layer structure;
a second switch machine control part in the first alternating current switch device and a second switch machine control part in the second alternating current switch device are of a second-generation structure;
the logic part in the first alternating current turnout device and the logic part in the second alternating current turnout device are communicated through an inter-train bus;
the first switch machine control part and the second switch machine control part each comprise a drive part and a presentation part which are independent of each other, the drive part and the presentation part each being capable of data connection with the logic part, wherein,
the driving part is used for controlling the switch machine to execute the fixed rotation or reverse rotation action based on the control command of the logic part;
the presentation part is used for collecting presentation information of the switch machine and sending the collected presentation information of the switch machine to the logic part.
A switch control method based on any one of the above alternating current switch devices, the method comprising:
the logic part sends a driving control command to a driving part, and the driving part controls the switch machine to execute a fixed rotation or a reverse rotation action based on the driving control command;
the presentation part collects presentation information of the switch machine and sends the presentation information to the logic part.
Furthermore, a three-phase current isolation acquisition circuit in the driving part detects the state of each phase of electricity in the three-phase electricity and sends the state of each phase of electricity to the logic part, and the logic part judges whether to send an instruction to the driving part to guide to the safety side or not after receiving the state of each phase of electricity.
Further, the alternating current turnout module sends alternating current sinusoidal signals to an outdoor switch machine through the positioning circuit and the counter circuit respectively, and the switch machine representation state is judged through detecting return current;
when the alternating current turnout module controls a five-wire switch machine, and the switch machine is positioned, the switch machine inner shutter connects the positioning circuit in the display part with the switch machine display diode, and the inversion circuit in the display part is in a short circuit state; at the moment, the middle positioning acquisition circuit in the representation part acquires negative half-wave sine current, and the middle reversal acquisition circuit in the representation part acquires sine current, so that the point switch is judged to be in a positioning state; when the positive half-wave sinusoidal current is collected by the reverse position collecting circuit and the sinusoidal current is collected by the positioning collecting circuit, judging that the switch machine is in a reverse position state; otherwise, judging that the point switch is in the quarto state.
Further, the alternating current turnout module sends alternating current sinusoidal signals to an outdoor switch machine through the positioning circuit and the counter circuit respectively, and the switch machine representation state is judged through detecting return current;
when the alternating current turnout module controls a seven-wire switch machine, when the switch machine is positioned, the switch machine internal shutter connects the positioning circuit in the display part with the switch machine display diode, and the reverse position circuit in the display part is in an open circuit state; at the moment, the middle positioning acquisition circuit in the representation part acquires the positive half-wave sine current, and the middle inversion acquisition circuit in the representation part acquires no current, so that the point switch is judged to be in a positioning state; when the positive half-wave sinusoidal current is collected by the reverse position collecting circuit and no current is collected by the positioning collecting circuit, judging that the switch machine is in a reverse position state; otherwise, judging that the point switch is in the quarto state.
Furthermore, the logic part controls the connection or disconnection of the positioning acquisition self-test circuit in the presentation part;
when a branch where the positioning acquisition self-checking circuit is located is conducted, the self-checking state is entered, under the normal condition, the positioning acquisition self-checking circuit simultaneously acquires effective positive and negative half-wave signals, otherwise, the positioning acquisition circuit is judged to be in fault;
and when the branch where the positioning acquisition self-checking circuit is located is disconnected, the branch enters a point switch to represent an acquisition state, and representation information of the point switch is acquired.
By the technical scheme, the reliability of turnout control can be effectively improved, and the running safety of the railway vehicle is ensured. Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 shows a schematic diagram of an AC turnout control system according to the prior art;
FIG. 2 is a block diagram of an AC turnout module according to an embodiment of the invention;
FIG. 3 is a block diagram showing the structure of a logic part in an alternating current turnout according to an embodiment of the invention;
fig. 4 is a block diagram showing the construction of a driving part in an alternating current turnout according to an embodiment of the invention;
FIG. 5 is a block diagram showing the structure of a representation part in an AC turnout according to an embodiment of the present invention;
fig. 6 shows a dual train hot standby ac switch system according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 2 is a block diagram of an ac switch module according to an embodiment of the present invention. As shown in fig. 2, the ac turnout module in the embodiment of the present invention adopts a two-by-two design, and includes two switch machine control units and a logic unit, and each switch machine control unit includes a driving unit and a display unit. The upper and lower switch machine control parts including the driving part and the display part are respectively in data connection with the safety processing module in the logic module. The two switch machine controls are identical in principle but physically independent.
In the embodiment of the invention, the alternating current turnout module mainly comprises a driving part, a representation part and a logic part, wherein the driving part and the representation part are mutually independent. In the embodiment of the present invention, the logic portion, the driving portion, and the representation portion are described below:
logic unit
The logic part realizes data interaction with the control network and the maintenance network, completes the functions of communication interaction, control output and acquisition and safe operation, consists of a 2-by-2 main control unit and is matched with another logic unit to form a 2-by-2 structure. Fig. 3 is a schematic diagram of a logic part of a 2-by-2 structure according to an embodiment of the present invention. As shown in fig. 3, there are two security processing modules in the logic: the system comprises a safety processing module I and a safety processing module II, wherein each of the two safety processing modules adopts two safety CPU chips: a secure CPU chip 1 and a secure CPU chip 2. The safety CPU chip 1 and the safety CPU chip 2 in the safety processing module I realize data connection, and the safety CPU chip 1 and the safety CPU chip 2 are respectively connected with the control network A and the maintenance network A. The structure of the safety processing module II is the same as that of the safety processing module I, and the safety processing module I and each safety CPU chip in the safety processing module II realize data interconnection.
Driving part
As shown in fig. 2, the driving part is powered by three-phase alternating current (AC380V) and is connected with an internal motor of the switch machine, and during use, the switch machine can be controlled to perform a fixed rotation action or a reverse rotation action based on a control command of a safety CPU chip in the logic part. The three-phase power supply mainly comprises a three-phase power supply switch circuit, a three-phase current isolation acquisition circuit, a three-phase electronic switch circuit and a phase change and wire system conversion circuit. Fig. 4 shows a further schematic structural diagram of the driving part according to the embodiment of the invention.
As shown in fig. 4, the three-phase power switch circuit includes a safety relay, a safety and gate and a safety acquisition unit respectively connected to the safety relay. The safety AND gate in the three-phase power supply switch circuit controls the safety relay in the three-phase power supply switch circuit so as to control the on-off of the three-phase power. And the safety AND gate receives dynamic signals with different frequencies sent by each safety CPU chip in the safety processing module so as to realize the control of the opening and closing of the safety relay.
In the embodiment of the invention, the safety relay can adopt a switching tube device such as a 3-open 1-close small safety relay, three-phase power of AC380V is respectively accessed through 3 normally open contacts of the 3-open 1-close safety relay, the 3 normally open contacts of the 3-open 1-close safety relay are closed when a switch machine acts, and when a fault occurs, the relay is ensured to be driven to be disconnected. Two safe CPU chips in the logic part can send dynamic control signals with different frequencies to the safe AND gate, so that the on-off control of the safe relay is realized, and the AC380V power supply output can be cut off when any CPU fails. The safety acquisition unit in the three-phase power switch circuit can be realized by a dynamic code transmission acquisition unit, acquires the state of the normally closed contact of the safety relay connected with the safety acquisition unit so as to ensure the safe acquisition of the closed state of the normally closed contact, and transmits the acquired data to the safety CPU chip in the safety processing module.
The safety AND gate in the three-phase power switch circuit can be used as a control component to control the opening and closing of the safety relay so as to realize the on-off control of the AC380V current, for example, when a safety fault occurs, the safety AND gate controls the 3-open 1-close relay to perform action so as to cut off the power supply of a 380VAC power supply; the safety acquisition circuit monitors the safety relay, acquires the opening and closing state of the normally closed contact of the safety relay, and sends the acquired opening and closing state data to the logic part. And two safety processing modules in the logic part simultaneously receive the opening and closing state data so as to master the current state of the relay.
The three-phase current isolation acquisition circuit acquires the current of each phase line in the three-phase power, acquires the current magnitude data (including current magnitude, phase and other data) of the three-phase power, determines whether each phase line is in an abnormal condition of phase failure, power failure or overcurrent, and sends the acquired current magnitude data to the safety CPU chips in the safety processing module I and the safety processing module II.
The outdoor alternating current switch machine is driven by three-phase power (U, V, W) of AC380V, and any phase abnormality can cause the switch machine to be incapable of being normally driven (even the situation of burning the motor or an on-board circuit can occur during overcurrent), so that in the embodiment of the invention, an independent current detection circuit (such as a three-phase current isolation acquisition module in fig. 4) is designed for each phase, and is used for judging whether the phase circuit is in phase failure, power failure, overcurrent and the like, and once the abnormality is detected, the output of 380V three-phase power is stopped, namely a switch of a three-phase power supply is disconnected, and an alarm instruction is sent to a safety CPU chip so as to control the driving part to be guided to a safety side.
The three-phase electronic switch circuit comprises three independent electronic switches and is used for controlling the on-off of three-phase power. Illustratively, three independent solid-state relays can be adopted to respectively control the on-off of three-phase power in a parallel connection mode. The three-phase electronic switch is beneficial to improving the reliability and the service life of the front and rear safety relay contacts. When the switch machine is driven to rotate by the output, the switch is finally closed or opened, so that the front safety relay and the rear safety relay are not electrified to be switched on and off.
As shown in fig. 4, in the embodiment of the present invention, three electronic switches are arranged on the lines in the three-phase power, respectively. The three-phase electronic switch circuit also comprises an electronic switch control part which is in data connection with the safety CPU chip in the safety processing module. The safety CPU chip can send a control instruction to the electronic switch control part, and the electronic switch control part controls the electronic switch to be opened and closed after receiving the control instruction, so that the three-phase power is controlled to be switched on and off.
The phase change and wire system conversion circuit comprises one or more switching circuits, and each switching circuit comprises a safety relay, a safety AND gate and a safety acquisition unit, wherein the safety AND gate and the safety acquisition unit are respectively connected with the safety relay. As shown in fig. 4, in the commutation and line switching circuit, the three-phase line is switched to the five-line by two switching circuits, and commutation is performed. Wherein the two switching circuits are respectively connected to the two-phase lines, thereby converting two phases of three-phase currents into four lines, and finally converting the driving circuit into 5 lines. The safety acquisition unit in the switch circuit acquires state data of a normally open contact and a normally closed contact in the safety relay, wherein the state data comprise the states of the normally open contact and the normally closed contact which are opened or closed or whether adhesion occurs or not, and the state of the normally open contact and the normally closed contact of the safety relay is acquired and compared with a current relay control signal to judge the contact state of the relay. And simultaneously sending the acquired state data to a safe CPU chip in the safe processing module, in the embodiment of the invention, the state data can be simultaneously sent to a safe CPU chip 1 and a safe CPU chip 2. And the safety AND gate in the commutation and wire system conversion circuit is also in data connection with a safety CPU chip in the safety processing module, and realizes the control of the on-off of a circuit based on a control instruction of the safety CPU chip. Specifically, two secure CPU chips in the secure processing module may both send a control signal to one or both of the two secure and gates.
And the phase change and wire system conversion circuit of the driving part is connected with an internal motor of the point switch through an electromagnetic compatibility protection circuit.
Display unit
As shown in fig. 2, the display unit is connected to an internal switch of the switch machine. In operation, the presentation part collects presentation status information of the switch machine and sends the collected presentation status information of the switch machine to the secure CPU chip of the logic part. The device mainly comprises a representation electric control circuit and a representation acquisition and control circuit.
Fig. 5 is a block diagram showing a presentation part according to an embodiment of the present invention. The representation electric control circuit of the representation part can be realized by a transformer, and particularly, an AC220V can be converted into two-way AC48V voltage output by a power frequency transformer, and the AC48V voltage is output to the representation acquisition and control circuit. The representation acquisition and control circuit of the representation part comprises a representation acquisition circuit, a representation acquisition self-checking circuit and a safety relay, and is connected with an internal switch of the switch machine through an electromagnetic compatibility protection circuit. As shown in fig. 5, the display unit according to the embodiment of the present invention employs a four-wire system in which the first wire and the second wire are connected to the first terminal and the second terminal of the first secondary winding of the transformer, respectively, and the third wire and the fourth wire are connected to the first terminal and the second terminal of the second secondary winding of the transformer, respectively. The four wires are respectively connected with the switch branches of the safety relay.
The representation acquisition and control circuit is connected with an internal switch of the switch machine, and can acquire representation state information of the switch machine in the operation process. As shown in fig. 5, the circuit in which the first secondary winding of the transformer is located forms a first loop, and the circuit in which the second secondary winding is located forms a second loop. The first loop includes a positioning circuit and the second loop includes a flip circuit.
The positioning circuit comprises a positioning acquisition circuit and a positioning acquisition self-checking circuit; the flip circuit comprises a flip acquisition circuit and a flip acquisition self-checking circuit. The positioning circuit and the inversion circuit are used for judging the representation information of the turnout, namely acquiring the state information of the turnout in positioning, inversion or quarto. The positioning acquisition self-checking circuit is connected between the first line and the second line; the flip acquisition circuit is connected to the third line, and the flip acquisition self-checking circuit is connected between the third line and the fourth line.
The positioning circuit and the inversion circuit judge that the turnout is in a positioning state, an inversion state or a quarto state through the positioning acquisition circuit and the inversion acquisition circuit. When the AC turnout controls a five-wire switch machine and the switch machine is positioned, the switch machine internal shutter connects the positioning circuit with the switch machine indication diode, and the flip circuit is in a short circuit state. The alternating current turnout module respectively sends alternating current sinusoidal signals to an outdoor switch machine through a positioning circuit and a flip circuit, the alternating current sinusoidal signals of the positioning circuit return negative half-wave sinusoidal current after passing through the representation diode, and the flip circuit returns sinusoidal current due to short circuit of the switch machine. At the moment, the positioning acquisition circuit acquires the negative half-wave sine current, and the reverse position acquisition circuit acquires the sine current at the same time, so that the point switch is judged to be in a positioning state; the method is the same as the positioning acquisition principle, when the positive half-wave sinusoidal current is acquired by the reverse position acquisition circuit and the sinusoidal current is acquired by the positioning acquisition circuit at the same time, the switch machine is judged to be in a reverse position state; and when other combinations are collected or abnormal current is collected, judging that the point switch is in a quarto state. When the switch machine is in locating state, the switch machine inside switch connects the locating circuit with the switch machine indication diode, and the reverse circuit is in open circuit state. The alternating current turnout module respectively sends alternating current sinusoidal signals to an outdoor switch machine through a positioning circuit and a flip circuit, the alternating current sinusoidal signals of the positioning circuit return positive half-wave sinusoidal current after passing through the representation diode, and the flip circuit does not return current due to the fact that the switch machine is broken. At the moment, the positioning acquisition circuit acquires the sine current of the positive half-wave, and the reverse position acquisition circuit acquires no current, so that the point switch is judged to be in a positioning state; the method is the same as the positioning acquisition principle, when the positive half-wave sinusoidal current is acquired by the reverse position acquisition circuit and no current is acquired by the positioning acquisition circuit, the switch machine is judged to be in a reverse position state; and when other combinations are collected or abnormal current is collected, judging that the point switch is in a quarto state. The acquisition and self-checking circuit is in a working state in real time and submits state information to the logic part periodically.
The fixed/reversed position acquisition self-checking circuit is used for judging whether the fixed/reversed position acquisition self-checking circuit works normally, and when the fixed/reversed position acquisition self-checking circuit judges that the fixed/reversed position acquisition self-checking circuit works abnormally, the turnout module is guided to a safety side, namely: after the indication part is judged to be abnormal, the positioning acquisition self-checking circuit sends an instruction to the safety CPU chip, and the safety CPU chip controls the driving circuit to guide the turnout to the safety side. The positioning acquisition self-checking circuit and the reverse position acquisition self-checking circuit can perform self-checking at a certain period so as to realize periodic detection of the working abnormity of the representation part.
The positioning acquisition self-checking circuit is used for judging whether the positioning acquisition circuit works normally or not. Based on a control instruction sent by the safety CPU chip, the positioning acquisition self-checking circuit controls the on or off of the branch where the positioning acquisition self-checking circuit is located. When the branch where the positioning acquisition self-checking circuit is located is conducted, the external circuit is short-circuited and enters a self-checking state, and under a normal condition, the positioning acquisition self-checking circuit simultaneously acquires effective positive and negative half-wave signals, otherwise, the positioning acquisition circuit is judged to be in fault; when the branch where the positioning acquisition self-checking circuit is located is disconnected, the branch enters a point switch to represent an acquisition state, and signals acquired by the positioning acquisition circuit are truly represented by an external point switch. The working principle of the reverse position acquisition self-checking circuit is the same as that of the positioning acquisition self-checking circuit.
The positioning circuit and the inversion circuit are connected with the safety relay, and specifically, the first line, the second line, the third line and the fourth line are respectively connected to contacts of four switch branches of the safety relay to realize the connection of the positioning circuit and the inversion circuit with the safety relay. The safety relay is controlled by a control circuit to realize the control of the on-off of each line, and a safety CPU chip in the safety processing module sends a control instruction to the control circuit so that the control circuit controls the on-off of a contact of the safety relay; the acquisition circuit is connected with the safety relay to acquire the states of the normally open contact and the normally closed contact in each branch of the safety relay, judge whether each branch of the safety relay can normally work, mainly used for judging whether the coil is broken or the contacts are adhered and the like, and transmitting the acquired state data (including the states of the normally open contact and the normally closed contact which are opened or closed) to the safety CPU chip in the safety processing module. The positioning acquisition circuits are connected in parallel, the first ends of the circuits after being connected in parallel are connected to the first end of the first secondary coil, and the positioning acquisition circuits are used for acquiring the turnout indication state. The positioning acquisition self-checking circuit is connected between the first line and the second line and is connected with the positioning acquisition circuit. And a flip acquisition circuit in the flip circuit is connected between the third line and the fourth line and is connected with the flip acquisition circuit corresponding to the positioning circuit. The safety relay is connected with the switch inside the switch machine through a rear plate protection circuit.
The positioning acquisition self-checking circuit and the inversion acquisition self-checking circuit receive a control instruction of a safety CPU chip in the safety processing module, and the positioning acquisition circuit and the inversion acquisition circuit execute acquisition and self-checking to control based on the control instruction.
Based on the alternating current turnout module, the invention provides a double-system hot standby alternating current turnout system, as shown in fig. 6, the double-system hot standby alternating current turnout system comprises two alternating current turnout modules: the system I is an alternating current turnout module and the system II is an alternating current turnout module. Each series of alternating current turnout modules comprises a logic part as described above and two switch machine control parts as described above.
A first switch machine control part in the I series alternating current turnout module and a first switch machine control part in the II series alternating current turnout module form a two-way structure, and the switch machines are controlled through an electromagnetic compatibility protection circuit in the system and an outdoor distribution panel; the second switch machine control part in the I series alternating current switch module and the second switch machine control part in the II series alternating current switch module are also formed into a two-way structure, and the other switch machine is controlled through an electromagnetic compatibility protection circuit in the system and an outdoor distribution panel.
And each safety CPU in the logic parts of the two series of alternating current turnout modules realizes data communication through the inter-series communication line. The double-system hot standby alternating current turnout system further effectively improves the safety, reliability and usability of turnout control.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (11)
1. An alternating current turnout device comprising a switch machine control and a logic, the switch machine control comprising a drive part and a presentation part that are independent of each other, the drive part and the presentation part each being capable of data connection with the logic, wherein,
the driving part is used for controlling the switch machine to execute the fixed rotation or reverse rotation action based on the control command of the logic part; the driving part comprises a three-phase power switch circuit, a three-phase current isolation acquisition circuit, a three-phase electronic switch circuit and a phase change and wire system conversion circuit; the three-phase power supply switching circuit is used for realizing on-off control of three-phase alternating current; the three-phase current isolation acquisition circuit is used for realizing current acquisition of each phase of three-phase power, and is used for judging whether the three-phase power is complete and whether a point switch is driven in place; the three-phase electronic switching circuit is used for improving the reliability of the three-phase power switching circuit and the phase and wire system conversion circuit; the phase change and wire system conversion circuit is used for realizing phase change of three-phase power and carrying out multi-wire system conversion, and can be used for controlling a multi-wire system point switch; the three-phase power supply switching circuit comprises a switching circuit and a safety acquisition unit, wherein the switching circuit is used for executing switching action based on a control signal so as to realize on-off control of three-phase alternating current; the safety acquisition unit is used for acquiring the opening and closing states of the switch circuit; the phase change and wire system conversion circuit comprises a plurality of switch circuits, wherein each switch circuit in the plurality of switch circuits is connected to two phase wires of three-phase alternating current in parallel;
the presentation part is used for collecting presentation information of the switch machine and sending the collected presentation information of the switch machine to the logic part.
2. The alternating current turnout device according to claim 1, the switching circuit comprising a switching unit, a control unit and a safety acquisition unit, wherein,
the switch unit can be opened or closed according to a control instruction of the control unit;
and the safety acquisition unit is used for acquiring the opening and closing states of the switch unit.
3. The alternating current turnout device according to claim 1,
the three-phase current isolation acquisition circuit is also used for determining whether each phase line in the three-phase electric line is abnormal and whether the point switch is driven in place;
the three-phase electronic switch circuit is also used for controlling the on-off of the three-phase electric circuit.
4. The alternating current turnout device according to claim 1, the indication portion comprising an indication electric control circuit and an indication acquisition and control circuit, wherein,
the indicating electric control circuit is used for converting two-phase high-voltage alternating current into two-phase low-voltage alternating current;
the representation acquisition and control circuit is used for being connected with an internal shutter of the switch machine so as to acquire representation state information of the switch machine.
5. The alternating current turnout apparatus of claim 1, the switch machine control comprising a first switch machine control and a second switch machine control, the logic comprising a first safety processing module and a second safety processing module, wherein,
the driving part and the representing part in the first switching machine control part can realize data connection with the first safety processing module and the second safety processing module;
the drive and presentation parts in the second switch machine control part can be in data connection with the first and second safety processing modules.
6. A dual tie hot standby AC turnout system based on the AC turnout apparatus of any of claims 1-5, the system comprising a first AC turnout apparatus and a second AC turnout apparatus, each of the first AC turnout apparatus and the second AC turnout apparatus comprising logic, a first switch machine control and a second switch machine control, wherein,
the first switch machine control part in the first alternating current switch device and the first switch machine control part in the second alternating current switch device are of a two-layer structure;
a second switch machine control part in the first alternating current switch device and a second switch machine control part in the second alternating current switch device are of a second-generation structure;
the logic part in the first alternating current turnout device and the logic part in the second alternating current turnout device are communicated through an inter-train bus;
the first switch machine control part and the second switch machine control part each comprise a drive part and a presentation part which are independent of each other, the drive part and the presentation part each being capable of data connection with the logic part, wherein,
the driving part is used for controlling the switch machine to execute the fixed rotation or reverse rotation action based on the control command of the logic part;
the presentation part is used for collecting presentation information of the switch machine and sending the collected presentation information of the switch machine to the logic part.
7. A switch control method based on an alternating current switch device as claimed in any one of claims 1 to 5, said method comprising:
the logic part sends a driving control command to a driving part, and the driving part controls the switch machine to execute a fixed rotation or a reverse rotation action based on the driving control command;
the presentation part collects presentation information of the switch machine and sends the presentation information to the logic part.
8. The switch control method as claimed in claim 7, wherein,
the three-phase current isolation acquisition circuit in the driving part detects the state of each phase of electricity in the three-phase electricity and sends the state of each phase of electricity to the logic part, and the logic part judges whether to send an instruction leading to a safety side to the driving part after receiving the state of each phase of electricity.
9. The switch control method as claimed in claim 7, wherein,
the alternating current turnout device respectively sends alternating current sinusoidal signals to an outdoor switch machine through a positioning circuit and a reversing circuit, and the switch machine representation state is judged by detecting return current;
when the alternating current turnout device controls a five-wire switch machine, when the switch machine is positioned, the internal shutter of the switch machine connects the positioning circuit in the display part with the display diode of the switch machine, and the inversion circuit in the display part is in a short-circuit state; at the moment, the middle positioning acquisition circuit in the representation part acquires negative half-wave sine current, and the middle reversal acquisition circuit in the representation part acquires sine current, so that the point switch is judged to be in a positioning state; when the positive half-wave sinusoidal current is collected by the reverse position collecting circuit and the sinusoidal current is collected by the positioning collecting circuit, judging that the switch machine is in a reverse position state; otherwise, judging that the point switch is in the quarto state.
10. The switch control method as claimed in claim 7, wherein,
the alternating current turnout device respectively sends alternating current sinusoidal signals to an outdoor switch machine through a positioning circuit and a reversing circuit, and the switch machine representation state is judged by detecting return current;
when the alternating current turnout device controls a seven-wire switch machine, when the switch machine is positioned, the internal switch of the switch machine connects the positioning circuit in the display part with the display diode of the switch machine, and the reverse position circuit in the display part is in an open circuit state; at the moment, the middle positioning acquisition circuit in the representation part acquires the positive half-wave sine current, and the middle inversion acquisition circuit in the representation part acquires no current, so that the point switch is judged to be in a positioning state; when the positive half-wave sinusoidal current is collected by the reverse position collecting circuit and no current is collected by the positioning collecting circuit, judging that the switch machine is in a reverse position state; otherwise, judging that the point switch is in the quarto state.
11. The switch control method according to any one of claims 7 to 10,
the logic part controls the connection or disconnection of the positioning acquisition self-test circuit in the representation part;
when a branch where the positioning acquisition self-checking circuit is located is conducted, the self-checking state is entered, under the normal condition, the positioning acquisition self-checking circuit simultaneously acquires effective positive and negative half-wave signals, otherwise, the positioning acquisition circuit is judged to be in fault;
and when the branch where the positioning acquisition self-checking circuit is located is disconnected, the branch enters a point switch to represent an acquisition state, and representation information of the point switch is acquired.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811139273.9A CN109278802B (en) | 2018-09-28 | 2018-09-28 | Alternating current turnout device, system and control method thereof |
| EP19780131.9A EP3656639B1 (en) | 2018-09-28 | 2019-09-04 | Alternating current turnout equipment, system, and control method therefor |
| PCT/CN2019/104326 WO2020063278A1 (en) | 2018-09-28 | 2019-09-04 | Alternating current turnout equipment, system, and control method therefor |
| EA202091838A EA202091838A1 (en) | 2018-09-28 | 2019-09-04 | AC POINTER EQUIPMENT, CONTROL SYSTEM AND METHOD |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811139273.9A CN109278802B (en) | 2018-09-28 | 2018-09-28 | Alternating current turnout device, system and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109278802A CN109278802A (en) | 2019-01-29 |
| CN109278802B true CN109278802B (en) | 2020-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811139273.9A Active CN109278802B (en) | 2018-09-28 | 2018-09-28 | Alternating current turnout device, system and control method thereof |
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| Country | Link |
|---|---|
| EP (1) | EP3656639B1 (en) |
| CN (1) | CN109278802B (en) |
| EA (1) | EA202091838A1 (en) |
| WO (1) | WO2020063278A1 (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109278801B (en) * | 2018-09-28 | 2020-05-22 | 北京全路通信信号研究设计院集团有限公司 | Turnout indicating device |
| CN109278802B (en) * | 2018-09-28 | 2020-05-22 | 北京全路通信信号研究设计院集团有限公司 | Alternating current turnout device, system and control method thereof |
| CN110672935B (en) * | 2019-09-10 | 2022-02-15 | 交控科技股份有限公司 | Method, device, equipment and storage medium for diagnosing turnout failure indication fault |
| CN110949446B (en) * | 2019-12-19 | 2022-03-08 | 交控科技股份有限公司 | Control circuit and method for electronic turnout |
| CN112224236B (en) * | 2020-09-17 | 2022-07-26 | 中铁武汉电气化局集团有限公司 | Method and circuit for controlling turnout traction, device, electronic equipment and storage medium |
| CN112606869B (en) * | 2020-12-28 | 2022-10-28 | 北京和利时系统工程有限公司 | Point switch control device |
| CN112693495B (en) * | 2021-01-08 | 2023-05-16 | 北京全路通信信号研究设计院集团有限公司 | Node-free distributed turnout safety driving control system |
| CN112793621A (en) * | 2021-03-01 | 2021-05-14 | 北京全路通信信号研究设计院集团有限公司 | Computer interlocking turnout multi-machine control system and method |
| CN113110404B (en) * | 2021-05-26 | 2023-08-11 | 四川都睿感控科技有限公司 | Device for independently simulating alternating current switch machine and application method thereof |
| CN113696933B (en) * | 2021-07-29 | 2023-02-10 | 西安铁路信号有限责任公司 | Switch-squeezing alarm system |
| CN113933703B (en) * | 2021-09-23 | 2024-04-26 | 交控科技股份有限公司 | Switch machine power acquisition system, method, object controller and storage medium |
| CN114013473B (en) * | 2021-10-15 | 2024-03-01 | 北京和利时系统工程有限公司 | Switch control position indicating circuit, device and detection method |
| CN114670894A (en) * | 2022-03-03 | 2022-06-28 | 浙江众合科技股份有限公司 | All-electronic interlocking turnout plate one-drive-to-bottom functional circuit |
| CN117087720B (en) * | 2023-08-21 | 2024-04-26 | 兰州交通大学 | Alternating current switch machine trackside control system based on wireless communication |
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Also Published As
| Publication number | Publication date |
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| EP3656639B1 (en) | 2024-05-01 |
| EP3656639A1 (en) | 2020-05-27 |
| CN109278802A (en) | 2019-01-29 |
| EP3656639A4 (en) | 2021-01-13 |
| WO2020063278A1 (en) | 2020-04-02 |
| EA202091838A1 (en) | 2021-04-30 |
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