CN107834502B - Goat overcurrent cuts off driving device - Google Patents
Goat overcurrent cuts off driving device Download PDFInfo
- Publication number
- CN107834502B CN107834502B CN201710852876.2A CN201710852876A CN107834502B CN 107834502 B CN107834502 B CN 107834502B CN 201710852876 A CN201710852876 A CN 201710852876A CN 107834502 B CN107834502 B CN 107834502B
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- CN
- China
- Prior art keywords
- goat
- phase
- control circuit
- switch
- current sensor
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
- H02H3/083—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current for three-phase systems
-
- 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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The invention discloses a kind of goat overcurrents to cut off driving device, for controlling being switched on or off for goat three phase mains, the first control circuit and second control circuit for exporting the current sensor of electric current including two electronic switches, detection three phase mains three-phase and two electronic switches being controlled simultaneously according to the testing result of current sensor, and as long as first control circuit and/or second control circuit control two electronic switches and disconnect, two electronic switches, which will disconnect, has no normal direction goat out-put supply.The present invention improves reliability due to controlling simultaneously using first control circuit and second control circuit electronic switch.
Description
Technical field
The present invention relates to technical field of rail traffic, and in particular to turn-out track machine actuating device.
Background technique
Goat is to be applied to the important execution equipment of one of rail traffic, for pulling track switch conversion locking road switch blade
Rail or heart rail indicate the position and state of point tongue or heart rail in supervision interlocking area.Need in goat stall overcurrent or
Person's track switch pulls the driving power for cutting off goat afterwards in place.Therefore, driving to goat and state detect.
The mode of operation of goat has electronic and manual two ways.It is controlled using electronic mode by track switch when equipment is normal
Device processed, which be uniformly controlled, realizes the fixed of goat, antiposition driving；When power failure or goat failure and corresponding track circuit
When failure, track switch is converted by hand mode.When Electronic control, for five-wire system exchanges goat, when needing to drive goat
When rotation, track switch controller can export two control signals, and one is used to control rotation direction, another turns for controlling driving
The three phase mains of rut machine exports.After detecting that driving current is excessive, track switch controller cuts off driving power, and goat stops turning
It is dynamic.
But when having larger current on the center line (N line) that track switch controller detects driving power, it is believed that goat turns
It is dynamic in place or stall, so that stopping issuing driving signal makes goat stop operating, handled by software when needing longer
Between, it is unfavorable for the protection to goat itself.
Summary of the invention
The technical problem to be solved by the invention is to provide a kind of goat overcurrents to cut off driving device, improves reliable
Property.
In order to solve the above technical problems, the present invention adopts the following technical scheme: goat overcurrent cutting driving device, is used for
Control goat three phase mains is switched on or off, and exports electric current including two electronic switches, detection three phase mains three-phase
Current sensor and the first control electricity that two electronic switches are controlled simultaneously according to the testing result of current sensor
Road and second control circuit, as long as and first control circuit and/or second control circuit control two electronic switches and disconnect, two
Electronic switch, which just will disconnect, has no normal direction goat out-put supply, and the first control circuit includes the processor of two isomeries,
The processor of the current sensor and two isomeries communicates to connect respectively, and the processor of described two isomeries is according to current sense
The three-phase current information of device feedback controls two electronic switches respectively, and the second control circuit includes that reception current sensor is anti-
Three logic comparator circuits of the three-phase current information of feedback, the output result of three logic comparator circuits is after logical AND with two
A optocoupler connection, the electronic switch connection corresponding with two respectively of two optocouplers.
Preferably, it is equipped with the first relay, the second relay between the current sensor and goat and determines antiposition
Switching switch, described determine antiposition switching switch and realize that commutation exports to B phase in three-phase electricity and C phase, second relay controls
The commutation result for determining antiposition switching switch output is output to goat, described to determine antiposition switching switch through control circuit and two electricity
Sub switch connection, the positive negative sense switch that described two electronic switches form one group of switch realize the control to antiposition switching switch is determined
System, as long as and one of electronic switch disconnect, determine antiposition switching switch can not commutation export.
Preferably, the three-phase of the three phase mains exports one current sensor of each connection, each current sensor and one
A signal conditioning circuit connection, each signal conditioning circuit are connect with a logic comparator circuit.
The technical solution adopted by the present invention, under normal operation, when current sensor real-time monitoring goat works
Electric current reports plateform system, when there is a situation where goat overcurrent, (ABC) as long as three-phase has a phase current abnormal, first is controlled
Circuit and/or second control circuit processed will control cutting electronic switch, and the driving of three-phase electricity exports cutting, and goat no longer turns
Dynamic to pull railway switches, due to controlling simultaneously using first control circuit and second control circuit electronic switch, improving can
By property.
Detailed description of the invention
Fig. 1 is the circuit diagram of first control circuit of the present invention；
Fig. 2 is the circuit diagram of second control circuit of the present invention.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Below
Description only actually at least one exemplary embodiment be it is illustrative, never as to the present invention and its application or make
Any restrictions.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, shall fall within the protection scope of the present invention.
With reference to Fig. 1 and Fig. 2, the present invention provides a kind of goat overcurrents to cut off driving device, for controlling goat three
Phase power supply is switched on or off.It includes the current sensor of two electronic switches, detection three phase mains three-phase output electric current
And it is controlled according to the first control circuit and second that the testing result of current sensor simultaneously controls two electronic switches
Circuit processed.
Wherein, the first control circuit includes the processor of two isomeries, the current sensor and two isomeries
Processor communicates to connect respectively, and the three-phase current information that the processor of described two isomeries is fed back according to current sensor is controlled respectively
Two electronic switches are made, the second control circuit includes three logics for receiving the three-phase current information of current sensor feedback
Comparison circuit, the output result of three logic comparator circuits are connect after logical AND with two optocouplers, two optocouplers respectively with
Two corresponding electronic switch connections.
Existing hard wired feed back cutting driving output, and have processor detection cutting driving power, software and hardware mode combines, only
Want first control circuit, the one or both of them of second control circuit controls two electronic switches simultaneously and disconnects, two electricity
Sub switch, which just will disconnect, has no normal direction goat out-put supply, therefore improves reliability.When two electronic switches are closed, three
For phase electricity output to goat, goat rotation, which is pulled railway switches, realizes the purpose of handoff path.
It is equipped with the first relay, the second relay in first control circuit, between current sensor and goat and determines
Antiposition switching switch, it is described determine antiposition switching switch commutation output, second relay are realized to B phase in three-phase electricity and C phase
The commutation result that antiposition switching switch output is determined in control is output to goat, described to determine antiposition switching switch through control circuit and two
A electronic switch connection, the positive negative sense switch realization that described two electronic switches form one group of switch switch switch to antiposition is determined
Control, as long as and one of electronic switch disconnect, determine antiposition switching switch can not commutation export.
The processor of two isomeries carries out control to the state of relay, and control signal can regard DO1 as, by two
It indicates that the normally-closed contact of relay guarantees driving circuit and indicates that circuit separates, improves reliability.And control is determined antiposition switching and is opened
The signal of pass can regard DO2 as, but DO2 signal i.e. electronic switch are both come from two by the control of detection signal
Processor also judges whether the hardware signal of overcurrent from two-way.When DO1 and DO2 are effectively exported, by a control circuit,
Guarantee that the first relay and the second relay first pick up, works after determining antiposition switching switch；DO1 is first exported, and is exported after DO2
When, determine antiposition switching switch output position drive signal；DO2 is first exported, and when exporting after DO1, it is anti-to determine antiposition switching switch output
Position driving signal；Even if driving process DO1 failure, effect and relay actuation time due to control circuit, which are slower than, to be determined antiposition and opens
The actuation time (poor 10 times of time interval or more) of pass determines antiposition switching switch and first works, falls after relay, guarantee relay
Device is not struck sparks, and the availability of circuit and the service life of device are improved
According to actual design demand, the selection processor from X86, PowerPC, ARM, MIPS realizes that processor isomery is set
Meter.
Due to detecting the electric current of three-phase electricity three-phase simultaneously, as long as a phase current is abnormal, the driving of three-phase electricity exports cutting,
Goat, which no longer rotates, pulls railway switches, and improves reliability.Due to two electronic switches and two processor isomery processing, control respectively
Determine antiposition switching switch, needs while effective, further ensure reliability.
Antiposition switching switch is determined in addition, opening when overcurrent, and the excitation signal of block system relay, does not avoid beating for relay
Fire.
In second control circuit, the three-phase of three phase mains exports one current sensor of each connection, each current sensor
It is connect with a signal conditioning circuit, each signal conditioning circuit is connect with a logic comparator circuit.
The signal of current sensor acquisition needs to handle, and treatment process includes signal condition, logical comparison, light-coupled isolation.
Current sensor output is the small Signal averaging direct current signal exchanged, and signal conditioning circuit is needed to carry out blocking, rectify, put
Greatly, filtering becomes a direct current signal；The signal normally exports high electricity compared with a fixed level signal hysteresis, lower than certain value
It is flat, it is higher than certain value output low level, three tunnels extremely and exports result logical AND, as long as abnormal all the way, the optocoupler in two channels is another
Side exports and original opposite level, the first electronic switch of disconnection or the second electronic switch.
Second control circuit cuts off driving output using hardware circuit automatically, and response is fast.
In addition to above preferred embodiment, there are other embodiments of the invention, and those skilled in the art can be according to this
Invention makes various changes and modifications, and as long as it does not depart from the spirit of the invention, should belong in claims of the present invention and determines
The range of justice.
Claims (2)
1. goat overcurrent cuts off driving device, for controlling being switched on or off for goat three phase mains, which is characterized in that
Including two electronic switches, the current sensor of detection three phase mains three-phase output electric current and according to the detection of current sensor
As a result the first control circuit and second control circuit two electronic switches controlled simultaneously, as long as and first control circuit
And/or second control circuit controls two electronic switches and disconnects, two electronic switches, which just will disconnect, has no the output of normal direction goat
Power supply, the first control circuit include the processor of two isomeries, the processor point of the current sensor and two isomeries
It does not communicate to connect, the three-phase current information that the processor of described two isomeries is fed back according to current sensor controls two electricity respectively
Sub switch, the second control circuit include three logical comparison electricity for receiving the three-phase current information of current sensor feedback
Road, the output result of three logic comparator circuits are connect after logical AND with two optocouplers, and two optocouplers are right with two respectively
The electronic switch connection answered is equipped with the first relay, the second relay and determines anti-between the current sensor and goat
Position switching switch, it is described determine antiposition switching switch commutation output, the second relay control are realized to B phase in three-phase electricity and C phase
The commutation result for formulating antiposition switching switch output is output to goat, described to determine antiposition switching switch through control circuit and two
Electronic switch connection, the positive negative sense switch that described two electronic switches form one group of switch realize the control to antiposition switching switch is determined
System, as long as and one of electronic switch disconnect, determine antiposition switching switch can not commutation export.
2. goat overcurrent according to claim 1 cuts off driving device, which is characterized in that the three-phase of the three phase mains
One current sensor of each connection is exported, each current sensor is connect with a signal conditioning circuit, each signal condition electricity
Lu Yuyi logic comparator circuit connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710852876.2A CN107834502B (en) | 2017-09-20 | 2017-09-20 | Goat overcurrent cuts off driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710852876.2A CN107834502B (en) | 2017-09-20 | 2017-09-20 | Goat overcurrent cuts off driving device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107834502A CN107834502A (en) | 2018-03-23 |
| CN107834502B true CN107834502B (en) | 2019-10-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710852876.2A Active CN107834502B (en) | 2017-09-20 | 2017-09-20 | Goat overcurrent cuts off driving device |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109375095B (en) * | 2018-08-29 | 2020-09-25 | 交控科技股份有限公司 | Signal machine monitoring system |
| CN109193915B (en) * | 2018-09-05 | 2020-09-25 | 交控科技股份有限公司 | Switch machine control circuit, system, control method and fault detection method |
| CN111746592B (en) * | 2020-07-06 | 2022-09-13 | 北京全路通信信号研究设计院集团有限公司 | Safe driving method and safe driving module for node-free three-phase alternating current point switch |
| CN112952760A (en) * | 2021-02-07 | 2021-06-11 | 浙江众合科技股份有限公司 | Point switch driving system with open-phase protection |
| CN114802347B (en) * | 2022-06-28 | 2022-10-21 | 卡斯柯信号(北京)有限公司 | Switching circuit for point switch |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101428635A (en) * | 2008-11-22 | 2009-05-13 | 兰州大成自动化工程有限公司 | Electronic apparatus and method for controlling three phase current point switch |
| CN101439725A (en) * | 2008-12-20 | 2009-05-27 | 兰州大成自动化工程有限公司 | Control and monitoring system for railway switch location |
| CN103786750A (en) * | 2014-03-07 | 2014-05-14 | 兰州交通大学 | Device and method for railway heavy type turnout multi-point-switch synchronous traction and control |
-
2017
- 2017-09-20 CN CN201710852876.2A patent/CN107834502B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101428635A (en) * | 2008-11-22 | 2009-05-13 | 兰州大成自动化工程有限公司 | Electronic apparatus and method for controlling three phase current point switch |
| CN101439725A (en) * | 2008-12-20 | 2009-05-27 | 兰州大成自动化工程有限公司 | Control and monitoring system for railway switch location |
| CN103786750A (en) * | 2014-03-07 | 2014-05-14 | 兰州交通大学 | Device and method for railway heavy type turnout multi-point-switch synchronous traction and control |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107834502A (en) | 2018-03-23 |
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