CN104749983A - Circuit and method for controlling vacuum circuit breaker - Google Patents
Circuit and method for controlling vacuum circuit breaker Download PDFInfo
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- CN104749983A CN104749983A CN201510170877.XA CN201510170877A CN104749983A CN 104749983 A CN104749983 A CN 104749983A CN 201510170877 A CN201510170877 A CN 201510170877A CN 104749983 A CN104749983 A CN 104749983A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
Abstract
The invention provides a circuit and a method for controlling a vacuum circuit breaker. A power supply is connected to a local unit control branch through a miniature circuit breaker in a secondary unit control branch, a first normally closed contact of a pantograph selector relay, a mode selecting switch, an emergency stopping relay, a UWPS main breakage enabling circuit, a first outputting relay, a main transformer control circuit, a second normally closed contact of the pantograph selector relay, a transformer pressure releasing valve and a pantograph isolating valve; in the local unit control branch, a portion, which ranges from the pantograph isolating valve to the rear of a second normally open contact of the pantograph selector relay, of the local unit control branch is connected with an enabling relay; and when a train is in an emergency condition, the emergency stopping relay fails, the enabling relay in the local unit branch also fails, the corresponding vacuum circuit breaker is switched off and is rapidly separated from a high-voltage power supply, and damage on train equipment and threatening on personal safety are avoided.
Description
Technical field
The application relates generally to electrical safety technical field, more particularly relates to a kind of vacuum circuit breaker control circuit and method.
Background technology
Vacuum circuit breaker is the important electric component of motor train unit high_voltage isolation, its main circuit breaker connected as motor train unit high pressure main circuit and cut-off, play a key effect in train safe motion process, especially train run into emergency condition need stop time, the timely action of vacuum circuit breaker, can reduce property loss and casualties effectively.
Summary of the invention
In view of this, the invention provides a kind of vacuum circuit breaker control circuit and method, when train in case of emergency, can cutoff high power supply in time, guarantee to stop in emergency, thus reduce property loss and casualties.
To achieve these goals, this application provides following technical scheme:
A kind of control circuit of vacuum circuit breaker, described control circuit comprises: this unit controls branch road and sub-cell controlling brancher, described unit controls branch road and sub-cell controlling brancher include: the first normally closed contact of pantograph selective relay and the first normally opened contact, mode selection switch, stop in emergency relay, UWPS master is broken enable circuits, first output relay, main convertor control circuit, second normally closed contact of described pantograph selective relay and the second normally opened contact, pressure-relief valve for transformer, pantograph isolation valve and main disconnected enable relay, wherein,
Described first normally closed contact, described mode selection switch, described in stop in emergency relay, described UWPS master to break enable circuits, described first output relay, described main convertor control circuit, described second normally opened contact and the described master enable relay that breaks is sequentially connected in series;
One end of described first normally opened contact is connected with the first end of described pressure-relief valve for transformer, and the other end is connected with the connecting line of described mode selection switch with described first normally closed contact;
One end of described second normally closed contact is connected with the connecting line of described main convertor control circuit with described second normally opened contact, and the other end is connected with the first end of described pressure-relief valve for transformer;
Second end of described pressure-relief valve for transformer is connected with described pantograph isolation valve.
Preferably, described control circuit also comprises:
For detecting the first testing circuit of the current operation mode of described mode selection switch;
For detecting the second testing circuit of the current state of described pantograph isolation valve;
For detecting the current switch states three testing circuit of described pressure-relief valve for transformer;
To break the 4th testing circuit of current state information of enable circuits for detecting described UWPS master;
For the relay that stops in emergency described in detecting the 5th testing circuit of electricity condition.
Preferably, described control circuit also comprises:
Cue circuit, detect that described pantograph isolation valve is in off-state for working as, and/or described pressure-relief valve for transformer is in off-state, and/or described mode selection switch is in powering mode in storehouse, and/or described UWPS master breaks difference current that enable circuits obtains when being greater than setting value, exports information.
Preferably, described cue circuit is specially pilot lamp, hummer or voice module.
Preferably, described main convertor control circuit comprises: main convertor traction control unit, the second output relay and the 3rd output relay, wherein:
The output terminal of described second output relay is connected with the input end of described 3rd output relay, the input end of described second output relay is connected with the input end of described main convertor traction control unit, and the output terminal of described main convertor traction control unit is connected with the output terminal of described 3rd output relay;
When determining described main convertor traction control cell failure, controlling described main convertor traction control unit and being in off-state, and described second output relay and described 3rd output relay are all in closure state.
Preferably, described UWPS master enable circuits of breaking comprises: a UWPS output module, the 2nd UWPS output module and principal and subordinate VCU relay normally closed contact, wherein:
The output terminal of a described UWPS output module is connected with the input end of described 2nd UWPS output module, the input end of a described UWPS output module is connected with the input end of described principal and subordinate VCU relay normally closed contact, and the output terminal of described principal and subordinate VCU relay normally closed contact is connected with the output terminal of described 2nd UWPS output module;
When judging that the difference current of high voltage side of transformer is greater than setting value, control a described UWPS output module and described 2nd UWPS output module is in off-state;
When receiving disconnection and leading disconnected order, disconnect described principal and subordinate VCU relay normally closed contact.
A control method for vacuum circuit breaker, is applied to the control circuit of vacuum circuit breaker as above, and described control method comprises:
The current operating state of each device in the control circuit detecting described vacuum circuit breaker;
Judge whether the current operating state of described each device all meets preset requirement one to one;
If so, the vacuum circuit breaker controlled in the current railway carriage of place train closes;
If not, the vacuum circuit breaker controlled in the current railway carriage of place train disconnects.
Preferably, in the control circuit of the described vacuum circuit breaker of described detection, the current operating state of each device comprises:
Detect the current state of the pantograph isolation valve in the control circuit of described vacuum circuit breaker, the current switch states of described pressure-relief valve for transformer, the current operation mode of described mode selection switch, described UWPS master is broken the current state of enable circuits.
Preferably, all satisfied preset requirement one to one of the current operating state of described each device is specially:
Described pantograph isolation valve is in closed, and described pressure-relief valve for transformer is in normally off, and described mode selection switch is in normal mode, and the difference current that enable circuits obtains and described UWPS master is broken is not more than setting value.
Preferably, described control method also comprises:
When described judged result is no, export corresponding warning message.
As can be seen here, compared with prior art, this application provides a kind of vacuum circuit breaker control circuit and method, the miniature circuit breaker of power supply in sub-cell controlling brancher, first normally closed contact of pantograph selective relay, mode selection switch, stop in emergency relay, the main disconnected enable circuits of UWPS (Uninterruptible PowerSystem/Uninterruptible Power Supply, uninterrupted power source), first output relay, main convertor control circuit, second normally closed contact of pantograph selective relay, after pressure-relief valve for transformer and pantograph isolation valve, be connected with the pantograph isolation valve of this unit controls branch road, and this this unit controls branch road comprises the pantograph isolation valve be connected successively, pressure-relief valve for transformer, first normally opened contact of pantograph selective relay, mode selection switch, stop in emergency relay, UWPS master is broken enable circuits, first output relay, main convertor control circuit, second normally opened contact of pantograph selective relay and enable relay.Based on this control circuit, in actual applications, when train in case of emergency, the above-mentioned relay electric-loss that stops in emergency is disconnected, thus makes above-mentioned control loop open circuit provided by the invention, then the enable relay electric-loss in this unit controls branch road, the vacuum circuit breaker of its correspondence is disconnected, high-voltage power supply is disconnected, avoids the damage to train apparatus and the threat to personal safety, ensure that the safe reliability of train operation.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
Fig. 1 is the electrical block diagram of the control circuit embodiment of a kind of vacuum circuit breaker provided by the invention;
Fig. 2 is the electrical block diagram of the control circuit embodiment of another kind of vacuum circuit breaker provided by the invention;
Fig. 3 is the schematic flow sheet of the control method embodiment of a kind of vacuum circuit breaker provided by the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
This application provides a kind of vacuum circuit breaker control circuit and method, the miniature circuit breaker of power supply in sub-cell controlling brancher, first normally closed contact of pantograph selective relay, mode selection switch, stop in emergency relay, UWPS (Uninterruptible Power System/Uninterruptible PowerSupply, uninterrupted power source) main disconnected enable circuits, first output relay, main convertor control circuit, second normally closed contact of pantograph selective relay, after pressure-relief valve for transformer and pantograph isolation valve, be connected with the pantograph isolation valve of this unit controls branch road, and this this unit controls branch road comprises the pantograph isolation valve be connected successively, pressure-relief valve for transformer, first normally opened contact of pantograph selective relay, mode selection switch, stop in emergency relay, UWPS master is broken enable circuits, first output relay, main convertor control circuit, second normally opened contact of pantograph selective relay and enable relay.Based on this control circuit, in actual applications, when train in case of emergency, the above-mentioned relay electric-loss that stops in emergency is disconnected, thus makes above-mentioned control loop open circuit provided by the invention, then the enable relay electric-loss in this unit controls branch road, the vacuum circuit breaker of its correspondence is disconnected, high-voltage power supply is disconnected, avoids the damage to train apparatus and the threat to personal safety, ensure that the safe reliability of train operation.
With reference to the electrical block diagram of the control circuit embodiment of a kind of vacuum circuit breaker of the present invention shown in Fig. 1, the control circuit that the present embodiment provides specifically can comprise: this unit controls branch road 100 and sub-cell controlling brancher 200, because this unit controls branch road 100 is substantially identical with the particular circuit configurations of sub-cell controlling brancher 200, the present embodiment only in proper order unit controls branch road 200 be described in detail for example:
This sub-cell controlling brancher 200 comprises: the first normally closed contact KM21 of pantograph selective relay and the first normally opened contact KM22, mode selection switch 201, the relay 202 that stops in emergency, UWPS master are broken enable circuits 203, first output relay 204, the second normally closed contact KM23 of main convertor control circuit 205, described pantograph selective relay and the second normally opened contact KM24, pressure-relief valve for transformer 206, pantograph isolation valve 207 and main disconnected enable relay 208.Certainly; it should be noted that; except these devices; this sub-cell controlling brancher 200 can also comprise the device in existing control loop; as miniature circuit breaker, pantograph selective relay etc.; the present invention describes in detail no longer one by one at this, pays that creative work determines so long as not those skilled in the art, all belongs to scope.
Wherein, in actual applications, as shown in Figure 1, above-mentioned first normally closed contact KM21, described mode selection switch 201, described in stop in emergency relay 202, described UWPS master to break enable circuits 203, described first output relay 204, described main convertor control circuit 205, described second normally opened contact KM24 and the described master enable relay 208 that breaks is sequentially connected in series.
And one end of described first normally opened contact KM22 is connected with the first end of described pressure-relief valve for transformer 206, the other end is connected with the connecting line of described mode selection switch 201 with described first normally closed contact KM21.
One end of described second normally closed contact KM23 is connected with the connecting line of described main convertor control circuit 205 with described second normally opened contact KM24, and the other end is connected with the first end of described pressure-relief valve for transformer 206; Second end of described pressure-relief valve for transformer 206 is connected with described pantograph isolation valve 207.
Based on above-mentioned analysis, in the present embodiment practical application, with reference to Fig. 2, if on the right side of this figure, controlling brancher is this unit controls branch road 100, left side is sub-cell controlling brancher 200, so, if the pantograph that now this unit controls branch road is corresponding rises, namely this unit pantograph selective relay KM1 obtains electric, as indicated by the arrows of fig. 2, the control circuit of this vacuum circuit breaker can form following control loop in actual applications:
DC110V power supply by time unit of miniature circuit breaker (not painted) - > subunits pantograph choose to relay the first normally closed contact of the KM21 - unit mode selection switch 201-202 - unit emergency stop relay times unit UWPS main fault can make circuit 203 - the first output relay unit 204 - unit main converter control circuit 205 - times unit pantograph choose relay second unit normally closed contacts KM23 - the main transformer pressure release valve (pos. No. 206 - unit pantograph isolation valve 207 - this unit pantograph isolation valve 107 - this unit the main transformer pressure release valve 106 - pantograph choose this unit relay first normally open contacts KM12 - this unit of the rolls mode switch 101 - this unit emergency stop relay UWPS 102 - this unit can make circuit break 103 - this unit 104 - the first output relays & gt;This unit main converter control circuit 105 - this unit pantograph choose the second normally open relay contacts KM14 - this unit main fault can relay 108.
In like manner, if sub-cell pantograph selective relay KM2 obtains electric, the control circuit of this vacuum circuit breaker will form following control loop:
DC110V power through this unit of miniature circuit breaker (not painted) - this unit pantograph choose relay the first normally closed contact of the KM11 - this unit mode selection switch 101 - this unit emergency stop relay 102 - this unit UWPS main fault can make 103 - this unit first output circuit relay - this unit main converter control circuit, 105-104 pantograph choose this unit relay the normally closed contact KM13 - this unit the main transformer pressure release valve 106 - this unit pantograph isolation valve 107 - unit pantograph isolation valve 207 - unit main transformer pressure release valve 206 - times unit pantograph choose relay first normally open contacts KM22 bolt - > time unit of the rolls mode switch 201 - unit emergency stop relay 202 - unit UWPS main fault can make 204-203 - first time unit output relay circuit & gt;Time unit main converter control circuit 205 - time unit pantograph choose relay second unit normally open contacts KM24 - Lord can make 208 relay.
As can be seen here, in the present embodiment practical application, once detect that any one device in formed control loop is abnormal, its corresponding link will disconnect, thus corresponding vacuum circuit breaker is disconnected, itself and high-voltage power supply are disconnected, ensures the important electric component safety of motor train unit and the life security of personnel.
Wherein, it should be noted that, in the practical application of the present embodiment, the mode of operation due to preference pattern switch can comprise normal mode and Ku Nei powering mode, when it is in normal mode, allows closed vacuum circuit breaker; And when it is in powering mode in storehouse, closed vacuum circuit breaker will not be allowed.
Further, when pantograph isolation valve is in off-state, the pantograph of this section railway carriage will not allow to rise, and the vacuum circuit breaker of this section railway carriage also will not allow to close simultaneously.
Further, when pressure-relief valve for transformer repeat circuit contact is in off-state, corresponding vacuum circuit breaker also will not be allowed to close; And, in actual applications, when run into emergency condition and brake hard time, stop in emergency relay by dead electricity, thus its auxiliary contact are disconnected, and then corresponding vacuum circuit breaker is disconnected, achieve the rapid isolation with high-voltage power supply, ensure that the safe reliability of train operation.
In addition, in the normal course of operation of train, when motor train unit is in train state of activation, if this unit pantograph rises, sub-cell pantograph will be fallen, and thus, if this unit vacuum circuit breaker allows closed, so sub-cell vacuum circuit breaker will not allow to close.That is, a train only allows a train control unit to play control action, and the vacuum circuit breaker of its correspondence is closed.
Known based on above-mentioned analysis, when detecting that pantograph isolation valve is in off-state, mode selection switch is in powering mode in storehouse, pressure-relief valve for transformer is in off-state, stop in emergency relay electric-loss, UWPS master break enable circuits obtain difference current be greater than setting value, do not receive VCU (Vchiclecontrol unit, train control unit) any one in these six kinds of situations of enable command be when occurring, its corresponding vacuum circuit breaker does not allow to close, that is, in train practical application, once occur in above-mentioned six kinds of situations any one or multiple, the control loop of the vacuum circuit breaker of this train is all by open circuit, thus disconnect high-voltage power supply rapidly, to guarantee the life security of the important electric component safety of train and personnel, reduce property loss and casualties.
Visible, state on the invention on the basis of embodiment, the control circuit of this vacuum circuit breaker can also comprise the testing circuit for detecting above-mentioned various situation, concrete, can comprise: for detecting the first testing circuit of the current operation mode of described mode selection switch; For detecting the second testing circuit of the current state of described pantograph isolation valve; For detecting the current switch states three testing circuit of described pressure-relief valve for transformer; To break the 4th testing circuit of current state information of enable circuits for detecting described UWPS master; For the relay that stops in emergency described in detecting the 5th testing circuit of electricity condition.
Wherein, the break current state information of enable circuits of UWPS master can comprise the difference (i.e. difference current) of high voltage side of transformer input current and output current, and the comparative result of this difference current and setting value (this setting value can be the value that VCU presets) etc.
It should be noted that; concrete structure due to above-mentioned testing circuit belongs to general knowledge known in this field; technician can detect according to reality to be needed to select suitable detection means; the present invention does not do concrete restriction to this; pay so long as not those skilled in the art that creative work determines, all belong to scope.
Optionally, the control circuit of vacuum circuit breaker provided by the invention can also comprise cue circuit, when detecting that described pantograph isolation valve is in off-state, and/or described pressure-relief valve for transformer is in off-state, and/or described mode selection switch is in powering mode in storehouse, and/or described UWPS master breaks difference current that enable circuits obtains when being greater than setting value, for exporting information, processes in time to remind staff.
Wherein, this cue circuit is specifically as follows pilot lamp, hummer or voice module etc., and the present invention does not do concrete restriction to this.
Optionally, as shown in Figure 1, for the main convertor control circuit 205 in control circuit of the present invention, it specifically can comprise: main convertor traction control unit 205-1, the second output relay 205-2 and the 3rd output relay 205-3, wherein:
The output terminal of described second output relay 205-2 is connected with the input end of described 3rd output relay 205-3, the input end of described second output relay 205-2 is connected with the input end of described main convertor traction control unit 205-1, and the output terminal of described main convertor traction control unit 205-1 is connected with the output terminal of described 3rd output relay 205-3.
In the present embodiment; main convertor traction control unit (Traction controll unit; TCU) 205-1 inside carries state indicating relay; before this main convertor starts; usually first self-inspection can be carried out; when determining in this main convertor TCU each parts and function is normal; control TCU state indicating relay is closed; with reference to Fig. 1; now; control main convertor traction control unit is in closure state, and described second output relay and described 3rd output relay are all in off-state.
Otherwise, if when this main convertor TCU fault being detected, maintenance TCU state indicating relay is in off-state, now, VCU can according to the failure condition of TCU, corresponding TCU is manually isolated at display interfaces, with reference to Fig. 1, now, the auxiliary contact of the second output relay 205-2 and the 3rd output relay 205-3 all will be in closure state, and the contact of main convertor traction control unit 205-1 repeat circuit will be in off-state, thus make train be unlikely to cause whole train traction no-output because of single TCU fault, ensure that VCU is enable to go back normally simultaneously.Wherein, in the present embodiment, the failure condition of each current transformer can directly show over the display, after determining certain current transformer fault, report to the police by the indicating device corresponding with it, now, driver directly can carry out isolated operation according on the operation interface of display, as clicked the main convertor of needs isolation, thus this main convertor is isolated by the default isolation program triggering correspondence, simply, conveniently and fast.
In sum, needed to judge whether each parts in its control circuit are in normal condition before closed vacuum circuit breaker, thus guarantee the safe and reliable of each parts; And whether judgment model selector switch is in powering mode in storehouse, guarantee human life's safety; And in train travelling process, if driver takes brake hard, the control circuit of vacuum circuit breaker by open circuit, thus disconnects high-voltage power supply rapidly, guarantees the safe reliability of train operation; In addition, the present invention can also isolate dependent failure current transformer, realizes traction redundancy feature, ensures train reliability service.
Optionally, in the present embodiment practical application, with reference to Fig. 1, this UWPS master enable circuits 203 of breaking can comprise: a UWPS output module 203-1, the 2nd UWPS output module 203-2 and principal and subordinate VCU relay normally closed contact 203-3, wherein:
The output terminal of a described UWPS output module 203-1 is connected with the input end of described 2nd UWPS output module 203-2, the input end of a described UWPS output module 203-1 is connected with the input end of described principal and subordinate VCU relay normally closed contact 203-3, and the output terminal of described principal and subordinate VCU relay normally closed contact 203-3 is connected with the output terminal of described 2nd UWPS output module 203-2;
When judging that the difference current of high voltage side of transformer is greater than setting value, control a described UWPS output module 203-1 and described 2nd UWPS output module 203-2 is in off-state;
When receiving disconnection and leading disconnected order, disconnect described principal and subordinate VCU relay normally closed contact 203-3.
In the present embodiment, this unit controls branch road 100 and sub-cell controlling brancher 200 all include VCU relay, when the pantograph of which unit rises, the VCU of this unit just plays control action, then the VCU of this unit is main VCU, the VCU relay of its correspondence obtains electric, and the principal and subordinate VCU relay normally closed contact 203-1 in the controlling brancher of so this unit disconnects, and relay normally open contact in a UWPS output module 203-1 and the 2nd UWPS output module 203-2 is all closed; And the VCU in the controlling brancher of another unit is from VCU, being somebody's turn to do must not be electric from VCU relay, the principal and subordinate VCU relay normally closed contact 203-1 of its correspondence is kept closed, thus enable unit short circuit that the UWPS master that a UWPS output module 203-1 and the 2nd UWPS output module are formed is broken.
Wherein, UWPS is the uninterrupted power source that VCU carries, it is not only a power supply, and make the enable element with logic input and output controlling functions and current sense function, in actual applications, it can utilize the measure voltage & current function of self, detects high voltage side of transformer input and output current differential, and the setting value of this difference and VCU inside is compared, to control principal and subordinate VCU relay normally closed contact according to comparative result performing corresponding actions.
It can thus be appreciated that this UMPS inside has relay module, the steering order that can send according to this VCU, makes its auxiliary contact (i.e. principal and subordinate VCU relay normally closed contact 203-1) closed or disconnect, using as control output action.This UWPS master UWPS output module 203-1 in enable circuits 203 and the 2nd UWPS output module 203-2 that breaks also controls by this VCU, due in actual applications, these two output modules do not participate in concrete Logic judgment, only perform the order of VCU, thus, VCU can be referred to these two output modules for convenience of description.
In sum, in this embodiment, when detecting that the difference current of high voltage side of transformer is greater than setting value, the UWPS master UWPS output module 203-1 in enable circuits 203 and the 2nd UWPS output module 203-2 that breaks all is in off-state, thus this unit master is broken enable relay 208 dead electricity, the normally opened contact then sealing in the disconnected enable relay 208 of this master in the control circuit controlling vacuum circuit breaker closing coil disconnects, thus this vacuum circuit breaker is disconnected, reach and rapidly to disconnect high-voltage power supply, guarantee the object of the safe reliability of train operation.
With reference to the schematic flow sheet of the control method embodiment of a kind of vacuum circuit breaker of the present invention shown in Fig. 3, the method specifically can comprise the following steps:
Step S31: the current operating state of each device in the control circuit of detection vacuum circuit breaker.
In the present embodiment, in conjunction with above-mentioned analysis, this step S31 is specifically as follows: the current state detecting the pantograph isolation valve in the control circuit of described vacuum circuit breaker, the current switch states of pressure-relief valve for transformer, the current operation mode of mode selection switch, UWPS master break enable circuits current state information (as obtain high voltage side of transformer difference current whether be greater than setting value).
Step S32: in the control circuit judging this vacuum circuit breaker, whether the current operating state of each device all meets preset requirement one to one, if so, then enters step S33; If not, then step S34 is performed.
Wherein, this preset requirement can comprise: described pantograph isolation valve is in closure state, and described pressure-relief valve for transformer is in normally off, and described mode selection switch is in normal mode, the difference current that enable circuits obtains and described UWPS master is broken is not more than setting value, and control by corresponding VCU, only having a pantograph to rise then this train only has a vacuum circuit breaker to close.
Step S33: the vacuum circuit breaker controlled in the current railway carriage of place train closes.
Step S34: the vacuum circuit breaker controlled in the current railway carriage of place train disconnects.
Optionally, when above-mentioned judged result is no, corresponding warning message can also be exported, specifically can according to the content of the particular content determination warning message of this judged result, the present invention does not do concrete restriction to this.And the mode such as this warning message can glimmer with pilot lamp, buzzer or voice broadcast exports, but be not limited thereto, as long as the effect of reminding staff can be played.
Known based on above-mentioned analysis, in embodiments of the present invention, by detecting in real time devices function situation each in above-mentioned control circuit provided by the invention, working condition once any one or more devices determined wherein does not meet preset requirement or fault, control circuit link corresponding to this device will disconnect, and namely make this control circuit open circuit, disconnect corresponding vacuum circuit breaker, thus rapid isolated high-voltage power supply, ensure train safe reliability service.
It should be noted that, about in the various embodiments described above, the link for connecting each device can also be comprised except the above-mentioned each device provided, display etc., the present invention will not enumerate at this, pay so long as not those skilled in the art that creative work determines, all belong to scope, in addition, such as first, the relational terms of the second grade and so on is only used for an operation or unit and another operates or cellular zone separates, and not necessarily require or imply the relation or order that there is any this reality between these unit or operation.
In this instructions, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.For method disclosed in embodiment, because it is corresponding with circuit disclosed in embodiment, so description is fairly simple, relevant part illustrates see circuit part.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. the control circuit of a vacuum circuit breaker, it is characterized in that, described control circuit comprises: this unit controls branch road and sub-cell controlling brancher, described unit controls branch road and sub-cell controlling brancher include: the first normally closed contact of pantograph selective relay and the first normally opened contact, mode selection switch, stop in emergency relay, UWPS master is broken enable circuits, first output relay, main convertor control circuit, second normally closed contact of described pantograph selective relay and the second normally opened contact, pressure-relief valve for transformer, pantograph isolation valve and main disconnected enable relay, wherein,
Described first normally closed contact, described mode selection switch, described in stop in emergency relay, described UWPS master to break enable circuits, described first output relay, described main convertor control circuit, described second normally opened contact and the described master enable relay that breaks is sequentially connected in series;
One end of described first normally opened contact is connected with the first end of described pressure-relief valve for transformer, and the other end is connected with the connecting line of described mode selection switch with described first normally closed contact;
One end of described second normally closed contact is connected with the connecting line of described main convertor control circuit with described second normally opened contact, and the other end is connected with the first end of described pressure-relief valve for transformer;
Second end of described pressure-relief valve for transformer is connected with described pantograph isolation valve.
2. control circuit according to claim 1, is characterized in that, described control circuit also comprises:
For detecting the first testing circuit of the current operation mode of described mode selection switch;
For detecting the second testing circuit of the current state of described pantograph isolation valve;
For detecting the current switch states three testing circuit of described pressure-relief valve for transformer;
To break the 4th testing circuit of current state information of enable circuits for detecting described UWPS master;
For the relay that stops in emergency described in detecting the 5th testing circuit of electricity condition.
3. control circuit according to claim 2, is characterized in that, described control circuit also comprises:
Cue circuit, detect that described pantograph isolation valve is in off-state for working as, and/or described pressure-relief valve for transformer is in off-state, and/or described mode selection switch is in powering mode in storehouse, and/or described UWPS master breaks difference current that enable circuits obtains when being greater than setting value, exports information.
4. control circuit according to claim 3, is characterized in that, described cue circuit is specially pilot lamp, hummer or voice module.
5. the control circuit according to any one of claim 1-4, is characterized in that, described main convertor control circuit comprises: main convertor traction control unit, the second output relay and the 3rd output relay, wherein:
The output terminal of described second output relay is connected with the input end of described 3rd output relay, the input end of described second output relay is connected with the input end of described main convertor traction control unit, and the output terminal of described main convertor traction control unit is connected with the output terminal of described 3rd output relay;
When determining described main convertor traction control cell failure, controlling described main convertor traction control unit and being in off-state, and described second output relay and described 3rd output relay are all in closure state.
6. the control circuit according to any one of claim 1-4, is characterized in that, described UWPS master enable circuits of breaking comprises: a UWPS output module, the 2nd UWPS output module and principal and subordinate VCU relay normally closed contact, wherein:
The output terminal of a described UWPS output module is connected with the input end of described 2nd UWPS output module, the input end of a described UWPS output module is connected with the input end of described principal and subordinate VCU relay normally closed contact, and the output terminal of described principal and subordinate VCU relay normally closed contact is connected with the output terminal of described 2nd UWPS output module;
When judging that the difference current of high voltage side of transformer is greater than setting value, control a described UWPS output module and described 2nd UWPS output module is in off-state;
When receiving disconnection and leading disconnected order, disconnect described principal and subordinate VCU relay normally closed contact.
7. a control method for vacuum circuit breaker, is characterized in that, is applied to the control circuit of the vacuum circuit breaker as described in any one of claim 1-6, and described control method comprises:
The current operating state of each device in the control circuit detecting described vacuum circuit breaker;
Judge whether the current operating state of described each device all meets preset requirement one to one;
If so, the vacuum circuit breaker controlled in the current railway carriage of place train closes;
If not, the vacuum circuit breaker controlled in the current railway carriage of place train disconnects.
8. control method according to claim 7, is characterized in that, in the control circuit of the described vacuum circuit breaker of described detection, the current operating state of each device comprises:
Detect the current state of the pantograph isolation valve in the control circuit of described vacuum circuit breaker, the current switch states of described pressure-relief valve for transformer, the current operation mode of described mode selection switch, described UWPS master is broken the current state of enable circuits.
9. control method according to claim 8, is characterized in that, the current operating state of described each device all meets preset requirement one to one and is specially:
Described pantograph isolation valve is in closed, and described pressure-relief valve for transformer is in normally off, and described mode selection switch is in normal mode, and the difference current that enable circuits obtains and described UWPS master is broken is not more than setting value.
10. the control method according to any one of claim 7-9, is characterized in that, described control method also comprises:
When described judged result is no, export corresponding warning message.
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006280132A (en) * | 2005-03-30 | 2006-10-12 | Toshiba Corp | Electric vehicle control unit |
| CN102381198A (en) * | 2011-11-29 | 2012-03-21 | 南车株洲电力机车有限公司 | High-voltage circuit for electric locomotive unit |
| CN102424004A (en) * | 2011-10-24 | 2012-04-25 | 南车株洲电力机车有限公司 | Motor train unit line-side circuit and control method thereof |
| CN102431469A (en) * | 2011-12-22 | 2012-05-02 | 南车株洲电力机车有限公司 | Motor train unit subsidiary loop split-phase passing uninterruptible power supply device |
| CN102490618A (en) * | 2011-11-29 | 2012-06-13 | 南车株洲电力机车有限公司 | Network-side circuit of electric locomotive unit |
| CN202443902U (en) * | 2012-02-24 | 2012-09-19 | 南车株洲电力机车有限公司 | Control unit for vacuum circuit breaker |
| CN202444244U (en) * | 2012-03-06 | 2012-09-19 | 南车株洲电力机车有限公司 | High voltage circuit breaker control loop of motor train unit |
| CN104325890A (en) * | 2014-11-28 | 2015-02-04 | 南车株洲电力机车有限公司 | Pantograph maintaining circuit of double-end cab direct-current locomotive |
| CN104362578A (en) * | 2014-11-13 | 2015-02-18 | 天津市百利电气有限公司 | Re-close residual-current circuit breaker |
-
2015
- 2015-04-13 CN CN201510170877.XA patent/CN104749983B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006280132A (en) * | 2005-03-30 | 2006-10-12 | Toshiba Corp | Electric vehicle control unit |
| CN102424004A (en) * | 2011-10-24 | 2012-04-25 | 南车株洲电力机车有限公司 | Motor train unit line-side circuit and control method thereof |
| CN102381198A (en) * | 2011-11-29 | 2012-03-21 | 南车株洲电力机车有限公司 | High-voltage circuit for electric locomotive unit |
| CN102490618A (en) * | 2011-11-29 | 2012-06-13 | 南车株洲电力机车有限公司 | Network-side circuit of electric locomotive unit |
| CN102431469A (en) * | 2011-12-22 | 2012-05-02 | 南车株洲电力机车有限公司 | Motor train unit subsidiary loop split-phase passing uninterruptible power supply device |
| CN202443902U (en) * | 2012-02-24 | 2012-09-19 | 南车株洲电力机车有限公司 | Control unit for vacuum circuit breaker |
| CN202444244U (en) * | 2012-03-06 | 2012-09-19 | 南车株洲电力机车有限公司 | High voltage circuit breaker control loop of motor train unit |
| CN104362578A (en) * | 2014-11-13 | 2015-02-18 | 天津市百利电气有限公司 | Re-close residual-current circuit breaker |
| CN104325890A (en) * | 2014-11-28 | 2015-02-04 | 南车株洲电力机车有限公司 | Pantograph maintaining circuit of double-end cab direct-current locomotive |
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| CN104749983B (en) | 2017-08-18 |
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