CN103625310B - A kind of electric railway subregion institute's automatic neutral-section passing system and automatic passing over of neutral section method thereof - Google Patents
A kind of electric railway subregion institute's automatic neutral-section passing system and automatic passing over of neutral section method thereof Download PDFInfo
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Abstract
A kind of electric railway automatic neutral-section passing system and automatic passing over of neutral section method thereof, its system includes: contact net one, two is connected with neutral section respectively through electricity segmentation one, two; Contact net one seals near electricity segmentation one place and is then parallelly connected with in electricity segmentation one after current transformer one, current transformer two and normal open switch one concatenate, and current transformer three and normally closed switch two are then parallelly connected with after concatenating in electricity segmentation two; Contact net one, two end connects voltage transformer one, two respectively; Being provided with pantograph survey meter one on current transformer one place pillar, electricity segmentation one place is provided with pantograph survey meter two, and electricity segmentation two place is provided with pantograph survey meter three; Current transformer one, two, three, pantograph survey meter one, two, three, voltage transformer one, two, normal open switch one is all connected with control unit. This system structure is simple, it is less to invest, it is simple to implement, and can more complete, be reliably achieved electric railway subregion automatic passing over of neutral section, and there is blocking function during system exception.
Description
Technical field
The present invention relates to a kind of electric railway subregion institute's automatic neutral-section passing system and automatic passing over of neutral section method thereof.
Background technology
The commonly used single phase industrial frequency AC system of China's electric railway, for making Three-phase Power Systems load balance as far as possible, electric railway often adopts the scheme of rotation phase sequence, point phase switched-mode power supply. Dividing adjacent power supply interval air or the insulator segmentation at phase subregion place, formation insulated electro divides phase, is called for short electric point and mutually or divides phase.
In order to prevent, electric locomotive is charged burns out overhead contact line parts by point phase factor arcing, even results in the accidents such as phase fault, the undue phase time of train, and driver needs a series of manual operations, completes phase process, is commonly called as and drops the undue phase of bow. along with the lifting of train speed is mutually frequent with undue, driver's labor intensity is big or manually reacts not as good as and cannot complete, other measure must be adopted, major measure is for adopting automatic passing over of neutral section technology, " a kind of electric railway self-monitoring automatic neutral-section passing system and automatic passing over of neutral section method thereof " (application number 201310199444.8) such as inventor, its core is the comparison of the electric current utilizing the current transformer on the current transformer sealed near electricity segmentation place on contact net and electricity sectional parallel branch road to measure, judge that power train is subject to stream-like condition and this train to arrive the position of electricity point phase, the closed and disconnected of contact net one and contact net two and neutral section is carried out by normal open switch, realize the automatic passing over of neutral section of power train. it is suitable to the undue phase situation of power train keeping being flowed before logical phase splitting. as power train was not flowed before electricity divides mutually, and need to be flowed when arriving neutral section, two switches now connecting neutral section are in off-state, current transformer cannot detect that train passes through signal, cause that train all cannot be flowed by whole neutral section, power supply blind area occurs, reduces train speed and the traffic capacity. meanwhile, this application is when train automatic passing over of neutral section residing for subregion, it is still necessary to the switching action of two switches, it operates relative complex.
Summary of the invention
First goal of the invention of the present invention is just to provide a kind of electric railway subregion institute automatic neutral-section passing system, this system can realize under various operating mode electric locomotive in the automatic passing over of neutral section residing for subregion, undue phase time is without the dead electricity time, switching manipulation number of operations is few, structure with control simple, can more complete, safety and reliability realize electric railway subregion automatic passing over of neutral section.
The present invention realizes the technical scheme that its first goal of the invention adopts, a kind of electric railway subregion institute automatic neutral-section passing system, including contact net one, contact net two, neutral section, contact net one is connected with neutral section by electricity segmentation one, contact net two is connected with neutral section by electricity segmentation two, it is characterised in that:
Described contact net one is sealing in current transformer one near electricity segmentation one place; It is then parallelly connected with in electricity segmentation one after current transformer two and normal open switch one concatenation; It is then parallelly connected with in electricity segmentation two after current transformer three and normally closed switch two concatenation;
The pillar at described current transformer one place is provided with pantograph survey meter one, the pillar at electricity segmentation one place is provided with pantograph survey meter two, the pillar at electricity segmentation two place is provided with pantograph survey meter three;
The end of described contact net one is provided with voltage-to-ground transformer one, and contact net two end is provided with voltage-to-ground transformer two;
Described current transformer one, current transformer two, current transformer three outfan, pantograph survey meter one, pantograph survey meter two, pantograph survey meter three outfan, voltage transformer one, voltage transformer two outfan, the control end of normal open switch one and normally closed switch two is all connected with control unit; Telemechanical apparatus is also connected with control unit simultaneously.
Second goal of the invention of the present invention is just to provide a kind of method using above-mentioned electric railway subregion institute automatic neutral-section passing system to carry out train automatic passing over of neutral section.
The present invention realizes the technical scheme that its second goal of the invention adopts, a kind of method using above-mentioned electric railway subregion institute automatic neutral-section passing system to carry out train automatic passing over of neutral section, and its practice is:
The voltage of A, voltage transformer one and voltage transformer two output is all higher than being equal to the threshold value set, and the voltage phase difference of voltage transformer one and voltage transformer two output is less than the threshold value set, then control unit judges tractive power supply system normal operation, carries out the automatic passing over of neutral section operation of following B, C, D step; Otherwise, E step operation is carried out;
B, the electric current detected when current transformer one, current transformer two summation current transformer three are zero, and pantograph survey meter one, pantograph survey meter two and pantograph survey meter three all do not detect pantograph through out-of-date, control unit judges do not have power train to sail between phase-separating section, does not carry out any operation;
C, the electric current detected when current transformer one more than zero and the electric current that detects of current transformer two, current transformer three equal to zero, or pantograph survey meter one is detected with pantograph through out-of-date, control unit judges that power train has traveled past current transformer one and is about to enter neutral section through electricity segmentation one from contact net one direction, control normal open switch one at once to close, make normal open switch one connection by closing of contact net one and neutral section, common to neutral section two-side feeding by contact net one and contact net two;
Subsequently, in setting interval after normal open switch one closes, the situation that the sense of current measured of current transformer two summation current transformer three is contrary occurs, or occur that pantograph survey meter two is detected with the situation of pantograph process, control unit then judges that power train has traveled past electricity segmentation one and enters neutral section, controlling normal open switch one at once to disconnect, now neutral section is still connected with contact net two, by contact net two to neutral section single side feeding; Otherwise, control unit judges that power train is parked between current transformer one and electricity segmentation one, and this information is passed to Dispatching Control System by telemechanical apparatus by control unit;
Then, in setting interval after normal open switch one disconnects, the electric current measured when current transformer three and current transformer one, current transformer two is zero, or pantograph survey meter three is detected with pantograph through out-of-date, control unit judges that power train sails out of phase-separating section, and the automatic passing over of neutral section that power train is driven towards contact net two by contact net one terminates;Otherwise, control unit judges that power train is parked in neutral section, and this information is passed to Dispatching Control System by telemechanical apparatus by control unit;
Finally, the electric current that current transformer one, current transformer two, current transformer three are measured is zero, pantograph survey meter one, pantograph survey meter two, pantograph survey meter three are not all detected with pantograph process, and system waits automatic passing over of neutral section operation next time;
D, the electric current measured when current transformer three more than zero and the electric current measured of current transformer two, current transformer one be zero, or pantograph survey meter three detects pantograph through out-of-date, control unit judges that power train crosses electricity segmentation two and enters neutral section from contact net two direction, control normal open switch one at once to close, make neutral section and contact net one connection, common to neutral section two-side feeding by contact net one and contact net two
Subsequently, in setting interval after normal open switch one closes, occur that the sense of current that current transformer two summation current transformer one is measured is contrary, or pantograph survey meter two detects the situation of pantograph process, control unit judges that power train crosses electricity segmentation one from neutral section, controls normal open switch one at once and disconnects; Otherwise, control unit judges that power train is parked in neutral section, and this information is passed to Dispatching Control System by telemechanical apparatus by control unit;
Finally, in setting interval after normal open switch one disconnects, occur that the electric current that current transformer one and current transformer two, current transformer three are measured is zero, or pantograph survey meter one detects the situation of pantograph process, control unit judges that power train sails out of phase-separating section, and the automatic passing over of neutral section that power train is driven towards contact net one by contact net two terminates; Otherwise, control unit judges that power train is parked between current transformer one and electricity segmentation one, and this information is passed to Dispatching Control System by telemechanical apparatus by control unit;
Subsequently, the electric current that current transformer one, current transformer two, current transformer three are measured is zero, pantograph survey meter one, pantograph survey meter two, pantograph survey meter three are not all detected with pantograph process, and system waits automatic passing over of neutral section operation next time;
E, voltage transformer one output voltage lower than set threshold value time, control unit judge contact net one can not normal power supply, locking normal open switch one so that it is be off;
When the voltage of voltage transformer two output is lower than the threshold value set, control unit judges that contact net two is short-circuited fault, locking normal open switch one so that it is be off
The phase contrast of voltage transformer one output voltage and voltage transformer two output voltage is more than the threshold value set, and control unit judges contact net one or contact net two voltage-phase generation abnormal failure, locking normal open switch one so that it is be off.
Compared with prior art, the invention has the beneficial effects as follows:
One, the comparison of the electric current that the current transformer that the present invention utilizes on contact net on the electricity current transformer that seals in of segmentation place and electricity sectional parallel branch road is measured, namely according to the power train position being judged this train arrival phase-separating section by stream-like condition at each section; As a supplement, detect whether that pantograph passes through sensing point further with the pantograph survey meter installed on pillar, when the power train not flowed is by (current transformer cannot detect electric current), what power train also can be detected passes through information, ensure that undue phase time switch can effectively close and disconnect, it is achieved under various operating modes, power train is in energy automatic passing over of neutral section equal residing for subregion.
Two, when power train enters from contact net one by when entering neutral section by electricity segmentation one, closed by normal open switch, it is achieved contact net one, two is to neutral section two-side feeding, after entering neutral section, disconnecting normal open switch immediately, the net two that resumes contacts is to neutral section single side feeding; After power train is entered neutral section by contact net two, being closed by normal open switch, it is achieved contact net one, two, to neutral section two-side feeding, after sailing out of neutral section, disconnects normal open switch, the net two that resumes contacts is to neutral section single side feeding; Two-side feeding in short-term can reduce effect on power system, and every time undue phase time, only one group of switch motion, and action frequency is few, structure with control simple, complete, be reliably achieved power train in not power-off automatic passing over of neutral section residing for subregion.
Three, the present invention uses current transformer and pantograph survey meter on post, do not use terrestrial location signal induction installation, to avoid the artificial damage of interference between this automatic neutral-section passing system and other devices of ground and ground, and when current transformer lost efficacy, pantograph survey meter also can judge the train position at phase-separating section, improve system reliability, better assure that train safe, well run.
Four, the present invention may determine that whether power train is parked in phase-separating section and power train is parked in the position of phase-separating section, Dispatching Control System can be notified in time by telemechanical apparatus, thus to power train scheduling or maintenance, can better ensure the safe and reliable of train operation.
Five, the present invention can detect subregion institute two ends contact net abnormal electrical power supply situation, and automatic blocking normal open switch, it is ensured that abnormal contact net is before reparation, and normal contact net does not turn on all the time with abnormal contact net, avoid fault spread, can better ensure the safe and reliable of train operation.
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention structural representation on contact net.
Fig. 2 is the control principle schematic diagram of the embodiment of the present invention.
Fig. 3 is the measurement and control logic flow chart of the embodiment of the present invention.
Detailed description of the invention
Embodiment
Fig. 1,2 illustrate, a kind of detailed description of the invention of the present invention is, a kind of electric railway subregion institute automatic neutral-section passing system, including contact net one T1, contact net two T2, neutral section T0, contact net one T1 is connected with neutral section T0 by electricity segmentation one S1, contact net two T2 is connected with neutral section T0 by electricity segmentation two S2, wherein: contact net one T1 is sealing in current transformer one H1 near electricity segmentation one S1 place; It is then parallelly connected with on electricity segmentation one S1 after current transformer two H2 and normal open switch one K1 concatenation; It is then parallelly connected with on electricity segmentation two S2 after current transformer three H3 and normally closed switch two K2 concatenation; The pillar at current transformer one H1 place is provided with pantograph survey meter one V1, the pillar at electricity segmentation one S1 place is provided with pantograph survey meter two V2, the pillar at electricity segmentation two S2 place is provided with pantograph survey meter three V3; The end of contact net one T1 is provided with voltage-to-ground transformer one Y1, and contact net two T2 end is provided with voltage-to-ground transformer two Y2; Current transformer one H1, current transformer two H2, current transformer three H3 outfan, pantograph survey meter one V1, pantograph survey meter two V2, pantograph survey meter three V3 outfan, voltage transformer one Y1, voltage transformer two Y2 outfan, the control end of normal open switch one K1 and normally closed switch two K2 is all connected with control unit CU;Telemechanical apparatus YD is also connected with control unit CU simultaneously.
Fig. 1-3 illustrates, uses the method that above-mentioned electric railway subregion institute automatic neutral-section passing system carries out train automatic passing over of neutral section, and its practice is:
The voltage of A, voltage transformer one Y1 and voltage transformer two Y2 output is all higher than being equal to the threshold value set, and the voltage phase difference of voltage transformer one Y1 and voltage transformer two Y2 output is less than the threshold value set, then control unit CU judges tractive power supply system normal operation, carries out the automatic passing over of neutral section operation of following B, C, D step; Otherwise, the operation of E step degree is carried out;
When being embodied as, the threshold value of setting is determined according to line condition, and general threshold voltage can take 15-19kV, and the threshold value of voltage phase difference can take 10-20 °.
B, the electric current detected as current transformer one H1, current transformer two H2 summation current transformer three H3 are zero, and pantograph survey meter one V1, pantograph survey meter two V2 and pantograph survey meter three V3 all do not detect pantograph through out-of-date, control unit CU judges do not have power train to sail between phase-separating section, does not carry out any operation;
C, when the current transformer one H1 electric current detected more than zero and the electric current that detects of current transformer two H2, current transformer three H3 equal to zero, or pantograph survey meter one V1 is detected with pantograph through out-of-date, control unit CU judges that power train has traveled past current transformer one H1 and is about to enter neutral section T0 through electricity segmentation one S1 from contact net one T1 direction, control normal open switch one K1 Guan Bi at once, contact net one T1 is made to be connected by normal open switch one K1 closed with neutral section T0, by contact net one T1 and contact net two T2 jointly to neutral section T0 two-side feeding;
Subsequently, in setting interval after normal open switch one K1 closes, the situation that the current transformer two H2 summation current transformer three H3 sense of current measured is contrary occurs, or occur that pantograph survey meter two V2 is detected with the situation of pantograph process, control unit CU then judges that power train has traveled past electricity segmentation one S1 and enters neutral section T0, controlling normal open switch one K1 at once to disconnect, now neutral section T0 still connects with contact net two T2, by contact net two T2 to neutral section T0 single side feeding; Otherwise, control unit CU judges that power train is parked between current transformer one H1 and electricity segmentation one S1, and this information is passed to Dispatching Control System by telemechanical apparatus YD by control unit CU;
Then, in setting interval after normal open switch one K1 disconnects, the electric current measured as current transformer three H3 and current transformer one H1, current transformer two H2 is zero, or pantograph survey meter three V3 is detected with pantograph through out-of-date, control unit CU judges that power train sails out of phase-separating section, and the automatic passing over of neutral section that power train is driven towards contact net two T2 by contact net one T1 terminates; Otherwise, control unit CU judges that power train is parked in neutral section T0, control unit CU, by telemechanical apparatus YD, this information is passed to Dispatching Control System;
Finally, the electric current that current transformer one H1, current transformer two H2, current transformer three H3 measure is zero, pantograph survey meter one V1, pantograph survey meter two V2, pantograph survey meter three V3 are not all detected with pantograph process, and system waits automatic passing over of neutral section operation next time;
D, when the current transformer three H3 electric current measured more than zero and the electric current measured of current transformer two H2, current transformer one H1 be zero, or pantograph survey meter three V3 detects pantograph through out-of-date, control unit CU judges that power train crosses electricity segmentation two S2 and enters neutral section T0 from contact net two T2 direction, control normal open switch one K1 Guan Bi at once, neutral section T0 and contact net one T1 is made to connect, by contact net one T1 and contact net two T2 jointly to neutral section T0 two-side feeding
Subsequently, in setting interval after normal open switch one K1 closes, occur that the current transformer two H2 summation current transformer one H1 sense of current measured is contrary, or pantograph survey meter two V2 detects the situation of pantograph process, control unit CU judges that power train crosses electricity segmentation one S1 from neutral section T0, controls normal open switch one K1 at once and disconnects;Otherwise, control unit CU judges that power train is parked in neutral section T0, control unit CU, by telemechanical apparatus YD, this information is passed to Dispatching Control System;
Then, in setting interval after normal open switch one K1 disconnects, occur that the electric current that current transformer one H1 and current transformer two H2, current transformer three H3 measure is zero, or pantograph survey meter one V1 detects the situation of pantograph process, control unit CU judges that power train sails out of phase-separating section, and the automatic passing over of neutral section that power train is driven towards contact net one T1 by contact net two T2 terminates; Otherwise, control unit CU judges that power train is parked between current transformer one H1 and electricity segmentation one S1, and this information is passed to Dispatching Control System by telemechanical apparatus YD by control unit CU;
Finally, the electric current that current transformer one H1, current transformer two H2, current transformer three H3 measure is zero, pantograph survey meter one V1, pantograph survey meter two V2, pantograph survey meter three V3 are not all detected with pantograph process, and system waits automatic passing over of neutral section operation next time;
E, voltage transformer one Y1 output voltage lower than set threshold value time, control unit CU judge contact net one T1 can not normal power supply, locking normal open switch one K1 so that it is be off;
When the voltage of voltage transformer two Y2 output is lower than the threshold value set, control unit CU judges that contact net two T2 is short-circuited fault, locking normal open switch one K1 so that it is be off
The phase contrast of voltage transformer one Y1 output voltage and voltage transformer two Y2 output voltage is more than the threshold value set, control unit CU judges contact net one T1 or contact net two T2 voltage-phase generation abnormal failure, locking normal open switch one K1 so that it is be off.
When the present invention is embodied as, C, D two in step set interval be generally the minimum time interval of adjacent two trains on the line.
For reducing contact net segmentation, during the invention process, current transformer one H1 can be selected for hook type current transformer, on hook type current transformer cramp joint carrier cable above contact wire, the divided relation between carrier cable and contact wire is utilized to export the power train electric current of contact wire.
Claims (2)
1. an electric railway subregion institute automatic neutral-section passing system, including contact net one (T1), contact net two (T2), neutral section (T0), contact net one (T1) is connected with neutral section (T0) by electricity segmentation one (S1), contact net two (T2) is connected with neutral section (T0) by electricity segmentation two (S2), it is characterised in that:
Described contact net one (T1) is sealing in current transformer one (H1) near electricity segmentation one (S1) place; It is then parallelly connected with on electricity segmentation one (S1) after current transformer two (H2) and normal open switch one (K1) concatenation; It is then parallelly connected with on electricity segmentation two (S2) after current transformer three (H3) and normally closed switch two (K2) concatenation;
The pillar at described current transformer one (H1) place is provided with pantograph survey meter one (V1), the pillar at electricity segmentation one (S1) place is provided with pantograph survey meter two (V2), the pillar at electricity segmentation two (S2) place is provided with pantograph survey meter three (V3);
The end of described contact net one (T1) is provided with voltage-to-ground transformer one (Y1), and contact net two (T2) end is provided with voltage-to-ground transformer two (Y2);
Described current transformer one (H1), current transformer two (H2), current transformer three (H3) outfan, pantograph survey meter one (V1), pantograph survey meter two (V2), pantograph survey meter three (V3) outfan, voltage transformer one (Y1), voltage transformer two (Y2) outfan, the control end of normal open switch one (K1) and normally closed switch two (K2) is all connected with control unit (CU);Telemechanical apparatus (YD) is also connected with control unit (CU) simultaneously.
2. using the method that the electric railway subregion institute automatic neutral-section passing system described in claim 1 carries out automatic passing over of neutral section, its practice is:
The voltage that A, voltage transformer one (Y1) and voltage transformer two (Y2) export is all higher than being equal to the threshold value set, and the voltage phase difference that voltage transformer one (Y1) and voltage transformer two (Y2) export is less than the threshold value set, then control unit (CU) judges tractive power supply system normal operation, carries out the automatic passing over of neutral section operation of following B, C, D step; Otherwise, E step operation is carried out;
B, the electric current detected when current transformer one (H1), current transformer two (H2) summation current transformer three (H3) are zero, and pantograph survey meter one (V1), pantograph survey meter two (V2) and pantograph survey meter three (V3) all do not detect pantograph through out-of-date, control unit (CU) judges do not have power train to sail between phase-separating section, does not carry out any operation;
C, the electric current detected when current transformer one (H1) is more than zero and current transformer two (H2), the electric current that current transformer three (H3) detects is equal to zero, or pantograph survey meter one (V1) is detected with pantograph through out-of-date, control unit (CU) judges that power train has traveled past current transformer one (H1) and is about to enter neutral section (T0) through electricity segmentation one (S1) from contact net one (T1) direction, control normal open switch one (K1) Guan Bi at once, contact net one (T1) is made to be connected by the normal open switch one (K1) closed with neutral section (T0), common to neutral section (T0) two-side feeding by contact net one (T1) and contact net two (T2), if now train is flowed, the size of current that then current transformer two (H2) summation current transformer three (H3) is measured is equal, direction is identical,
Subsequently, in setting interval after normal open switch one (K1) closes, the situation that current transformer two (H2) summation current transformer three (H3) sense of current measured is contrary occurs, or occur that pantograph survey meter two (V2) is detected with the situation of pantograph process, control unit (CU) then judges that power train has traveled past electricity segmentation one (S1) and enters neutral section (T0), control normal open switch one (K1) at once to disconnect, now neutral section (T0) is still connected with contact net two (T2), by contact net two (T2) to neutral section (T0) single side feeding, otherwise, control unit (CU) judges that power train is parked between current transformer one (H1) and electricity segmentation one (S1), and this information is passed to Dispatching Control System by telemechanical apparatus (YD) by control unit (CU),
Then, in setting interval after normal open switch one (K1) disconnects, the electric current measured when current transformer three (H3) and current transformer one (H1), current transformer two (H2) be zero or pantograph survey meter three (V3) be detected with pantograph through out-of-date, control unit (CU) judges that power train sails out of phase-separating section, and the automatic passing over of neutral section that power train is driven towards contact net two (T2) by contact net one (T1) terminates; Otherwise, control unit (CU) judges that power train is parked in neutral section (T0), and this information is passed to Dispatching Control System by telemechanical apparatus (YD) by control unit (CU);
Finally, the electric current that current transformer one (H1), current transformer two (H2), current transformer three (H3) are measured is zero, pantograph survey meter one (V1), pantograph survey meter two (V2), pantograph survey meter three (V3) are not all detected with pantograph process, and system waits automatic passing over of neutral section operation next time;
D, the electric current measured when current transformer three (H3) is more than zero and current transformer two (H2), the electric current that current transformer one (H1) is measured is zero, or pantograph survey meter three (V3) detects pantograph through out-of-date, control unit (CU) judges that power train crosses electricity segmentation two (S2) and enters neutral section (T0) from contact net two (T2) direction, control normal open switch one (K1) Guan Bi at once, neutral section (T0) is made to connect with contact net one (T1), common to neutral section (T0) two-side feeding by contact net one (T1) and contact net two (T2),
Subsequently, in setting interval after normal open switch one (K1) closes, occur that the sense of current that current transformer two (H2) summation current transformer one (H1) is measured is contrary, or pantograph survey meter two (V2) detects the situation of pantograph process, control unit (CU) judges that power train crosses electricity segmentation one (S1) from neutral section (T0), controls normal open switch one (K1) at once and disconnects; Otherwise, control unit (CU) judges that power train is parked in neutral section (T0), and this information is passed to Dispatching Control System by telemechanical apparatus (YD) by control unit (CU);
Then, in setting interval after normal open switch one (K1) disconnects, occur the electric current that current transformer one (H1) and current transformer two (H2), current transformer three (H3) are measured be zero or pantograph survey meter one (V1) detect the situation of pantograph process, control unit (CU) judges that power train sails out of phase-separating section, and the automatic passing over of neutral section that power train is driven towards contact net one (T1) by contact net two (T2) terminates; Otherwise, control unit (CU) judges that power train is parked between current transformer one (H1) and electricity segmentation one (S1), and this information is passed to Dispatching Control System by telemechanical apparatus (YD) by control unit (CU);
Finally, the electric current that current transformer one (H1), current transformer two (H2), current transformer three (H3) are measured is zero, pantograph survey meter one (V1), pantograph survey meter two (V2), pantograph survey meter three (V3) are not all detected with pantograph process, and system waits automatic passing over of neutral section operation next time;
When the voltage that E, voltage transformer one (Y1) export is lower than the threshold value set, control unit (CU) judges that contact net one (T1) can not normal power supply, locking normal open switch one (K1) so that it is be off;
The voltage that voltage transformer two (Y2) exports lower than set threshold value time, control unit (CU) judge contact net two (T2) can not normal power supply, locking normal open switch one (K1) so that it is be off;
The phase contrast of voltage transformer one (Y1) output voltage and voltage transformer two (Y2) output voltage is more than the threshold value set, it is abnormal that control unit (CU) judges that contact net one (T1) or contact net two (T2) voltage-phase occur, locking normal open switch one (K1) so that it is be off.
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| CN105034856B (en) * | 2015-07-06 | 2017-11-07 | 北京交通大学 | A kind of electric neutral section of attached wires of AC electrified railway intelligence |
| CN106183897B (en) * | 2016-09-23 | 2018-08-10 | 西南交通大学 | A kind of electric railway subregion institute's automatic neutral-section passing system and its control method |
| CN106347175B (en) * | 2016-09-28 | 2022-05-31 | 北京易菲盛景科技有限责任公司 | Improved intelligent electric phase splitting device for alternating current electrified railway |
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| CN110091767B (en) * | 2018-01-31 | 2022-08-02 | 株洲中车时代电气股份有限公司 | Ground passing neutral section control method, control device and passing neutral section device |
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Effective date of registration: 20160621 Address after: 610031 Sichuan City, Chengdu Province, No. two North Ring Road, No. 111 Patentee after: Southwest Jiaotong University Patentee after: Li Qunzhan Address before: 610031 Sichuan City, Chengdu Province, No. two North Ring Road, No. 111 Patentee before: Southwest Jiaotong University |