CN111999604A - Detection method for railway traction power supply - Google Patents
Detection method for railway traction power supply Download PDFInfo
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- CN111999604A CN111999604A CN202010951591.6A CN202010951591A CN111999604A CN 111999604 A CN111999604 A CN 111999604A CN 202010951591 A CN202010951591 A CN 202010951591A CN 111999604 A CN111999604 A CN 111999604A
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- 238000001514 detection method Methods 0.000 title claims abstract description 12
- 238000012423 maintenance Methods 0.000 claims abstract description 23
- 230000008439 repair process Effects 0.000 claims abstract description 13
- 238000003745 diagnosis Methods 0.000 claims abstract description 10
- 238000012544 monitoring process Methods 0.000 claims abstract description 7
- 239000003990 capacitor Substances 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 16
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 230000007613 environmental effect Effects 0.000 claims description 3
- 230000000737 periodic effect Effects 0.000 claims description 3
- 238000010248 power generation Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- 230000009471 action Effects 0.000 description 8
- 230000008569 process Effects 0.000 description 3
- 241000283986 Lepus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/086—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution networks, i.e. with interconnected conductors
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S20/00—Supporting structures for PV modules
- H02S20/30—Supporting structures being movable or adjustable, e.g. for angle adjustment
- H02S20/32—Supporting structures being movable or adjustable, e.g. for angle adjustment specially adapted for solar tracking
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The invention discloses a detection method for railway traction power supply, which comprises the following steps: step one, laying an inductor; step two, power supply monitoring; step three, transmitting fault information; step four, fault diagnosis; step five, fault repair; step six, regular maintenance is carried out; in the step one, as the railway traction power supply involves a plurality of devices, such as a traction substation, a GIS electrical appliance, a GIS cabinet, a traction transformer, a high-voltage capacitor and a lightning arrester, if the devices fail, the railway traction power supply is problematic, and therefore inductors need to be laid around the devices; the sensors are arranged at each position of the railway, so that the fault location and the fault condition can be known conveniently at the first time, the equipment can be maintained conveniently, the railway transportation is recovered to be normal, the sensors are powered by solar energy, a circuit does not need to be kept with a traction power supply system, the continuous work of the sensors is ensured, and the detection effect is improved.
Description
Technical Field
The invention relates to the technical field of railway equipment, in particular to a detection method for railway traction power supply.
Background
In 1879, 5 months, siemens germany and hares built the first electrified railway in the world; over 100 years, with the development of the motor and electrical appliance manufacturing industry, the electronic industry and the power industry, the electrified railway transportation is generally regarded as important due to huge economic benefits of the electrified railway transportation in all countries of the world and is developed at a rapid speed, and traction power supply refers to a power supply mode for dragging electric energy required by vehicle transportation; the traction power supply system is a whole power supply system which introduces a 220(110) KV power supply from a place to a railway, and reduces the voltage to 27.5KV through a traction substation to be transmitted to an electric locomotive, but the existing railway traction power supply system has a lot of equipment and large span, so that once a problem occurs, the problem is not easy to detect, the problem occurs in railway transportation, and the detection efficiency is improved.
Disclosure of Invention
The invention aims to provide a detection method for railway traction power supply, which aims to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: a detection method for railway traction power supply comprises the following steps: step one, laying an inductor; step two, power supply monitoring; step three, transmitting fault information; step four, fault diagnosis; step five, fault repair; step six, regular maintenance is carried out;
in the step one, as the railway traction power supply involves a plurality of devices, such as a traction substation, a GIS electrical appliance, a GIS cabinet, a traction transformer, a high-voltage capacitor and a lightning arrester, if the devices fail, the railway traction power supply is problematic, and therefore inductors need to be laid around the devices;
in the second step, twenty-four hours of monitoring is carried out on the traction power supply equipment through the inductor;
in the third step, when the traction power supply fails, the fixed place is detected through the inductor, then the fault place is transmitted to the electric power data communication network through the field bus, and finally the fault place is transmitted to the operation and maintenance management place;
in the fourth step, the name of the equipment with the fault is firstly known, then possible problems are searched through a data server in operation and maintenance management, and then comprehensive diagnosis is carried out on the equipment according to environmental factors;
in the fifth step, the diagnosis information is notified to a power maintenance worker, the power maintenance worker prepares a repair tool to go to a fault occurrence place, and then the power maintenance worker repairs the fault occurrence place;
in the sixth step, after the repair is completed, periodic maintenance is required for many times, so that the problem is avoided.
Preferably, in the first step, the inductor includes a power detector, an adjusting component, a solar panel and a connecting component, the solar panel is mounted on the outer wall of the top end of the power detector, and the adjusting component is fixed on the outer wall between the solar panel and the power detector;
the adjusting component comprises a first rotating groove, a motor, a first gear, a support plate, a first limit ball, a second rotating groove, a rotating rod, a second gear, a connecting plate, a second limit ball, a first limit groove, a second limit groove, a third rotating groove, a connecting rod, a connecting block and a fourth rotating groove, wherein the first rotating groove is formed in the inner wall of the top end of the electric power detector, the motor is embedded and installed on the inner wall of one side of the first rotating groove, the first gear is installed on the inner wall of one side of the first rotating groove, one end of an output shaft of the motor is fixedly connected inside the first gear, the support plate is rotatably connected to the outer wall of one side of the first gear, the first limit ball is fixedly welded on the outer wall of the top end of the support plate, the second limit groove is formed in the outer wall of the bottom end of the solar panel corresponding to the first limit ball, and the second rotating groove is formed in the inner wall of one side of the, rotate on one side inner wall in second rotation groove and be connected with the dwang, welded fastening has the second gear on one side outer wall of dwang, and one side meshing of second gear is connected on the outer wall of first gear, welded fastening has the spacing ball of second on the top outer wall of dwang, correspond the spacing ball of second on solar panel's the bottom outer wall and seted up first spacing groove, welded fastening has the connecting plate on one side outer wall of dwang, the third rotation groove has been seted up to the symmetry on one side outer wall of connecting plate, it is connected with the connecting rod to rotate on one side inner wall in third rotation groove, symmetrical welded fastening has the connecting block on solar panel's the bottom outer wall, the fourth rotation groove has been seted up to corresponding the connecting block on one side outer wall of connecting rod, be fixed with coupling assembling on one side outer wall of electric power detector
Preferably, coupling assembling includes spout, movable plate, slider, first spring, accomodates groove, second spring and grip block, the movable plate is installed to the symmetry on one side outer wall of electric power detector, welded fastening has the slider on one side outer wall of movable plate, the spout has been seted up to corresponding the slider on one side outer wall of electric power detector, welded fastening has first spring on the outer wall between the slider, seted up on one side inner wall of movable plate and accomodate the groove, sliding connection has the grip block on accomodating one side inner wall in groove, welded fastening has the second spring on one side outer wall of grip block, and the other end of second spring welds and is preferred on accomodating the inner wall in groove, the connecting hole has been seted up in the distribution on one side outer wall of grip block.
Preferably, the motor is a stepping motor
Preferably, the first gear and the second gear are bevel gears.
Preferably, the clamping plate is L-shaped.
Compared with the prior art, the invention has the following beneficial effects: according to the detection method for railway traction power supply, the sensors are arranged at each position of a railway, so that a fault location and a fault condition can be known conveniently at the first time, equipment maintenance is facilitated, the railway transportation is recovered to be normal, the sensors are powered by solar energy, a circuit is not required to be kept with a traction power supply system, continuous work of the sensors is guaranteed, and the detection effect is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a process flow diagram of the present invention;
FIG. 2 is a schematic overall perspective view of the present invention;
FIG. 3 is a front view cut-away schematic of the present invention;
FIG. 4 is a side sectional structural schematic view of the coupling assembly of the present invention;
in the figure: 1. a power detector; 2. an adjustment assembly; 3. a solar panel; 4. a connecting assembly; 5. connecting holes; 21. a first rotating groove; 22. a motor; 23. a first gear; 24. a support plate; 25. a first limit ball; 26. a second rotating groove; 27. rotating the rod; 28. a second gear; 29. a connecting plate; 210. a second limit ball; 211. a first limit groove; 212. a second limit groove; 213. a third rotating groove; 214. a connecting rod; 215. connecting blocks; 216. a fourth rotation groove; 41. a chute; 42. moving the plate; 43. a slider; 44. a first spring; 45. a receiving groove; 46. a second spring; 47. and (4) clamping the plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a detection method for railway traction power supply comprises the following steps: step one, laying an inductor; step two, power supply monitoring; step three, transmitting fault information; step four, fault diagnosis; step five, fault repair; step six, regular maintenance is carried out;
in the first step, as the railway traction power supply relates to a plurality of devices, such as a traction substation, a GIS electrical appliance, a GIS cabinet, a traction transformer, a high-voltage capacitor and a lightning arrester, and if the devices are in fault, the railway traction power supply is in problem, inductors need to be laid around the devices, in the first step, each inductor comprises a power detector 1, an adjusting component 2, a solar panel 3 and a connecting component 4, the solar panel 3 is installed on the outer wall of the top end of the power detector 1, and the adjusting component 2 is fixed on the outer wall between the solar panel 3 and the power detector 1; the adjusting component 2 comprises a first rotating groove 21, a motor 22, a first gear 23, a support plate 24, a first limit ball 25, a second rotating groove 26, a rotating rod 27, a second gear 28, a connecting plate 29, a second limit ball 210, a first limit groove 211, a second limit groove 212, a third rotating groove 213, a connecting rod 214, a connecting block 215 and a fourth rotating groove 216, wherein the inner wall of the top end of the power detector 1 is provided with the first rotating groove 21, the inner wall of one side of the first rotating groove 21 is embedded with the motor 22, the inner wall of one side of the first rotating groove 21 is provided with the first gear 23, one end of the output shaft of the motor 22 is fixedly connected inside the first gear 23, the outer wall of one side of the first gear 23 is rotatably connected with the support plate 24, the outer wall of the top end of the support plate 24 is fixedly welded with the first limit ball 25, the outer wall of the bottom end of the solar panel 3 is provided with the second limit groove 212 corresponding to the, the inner wall of the electric power detector 1 on one side of the first rotating groove 21 is provided with a second rotating groove 26, the inner wall of one side of the second rotating groove 26 is rotatably connected with a rotating rod 27, the outer wall of one side of the rotating rod 27 is fixedly welded with a second gear 28, one side of the second gear 28 is meshed and connected with the outer wall of the first gear 23, the outer wall of the top end of the rotating rod 27 is fixedly welded with a second limiting ball 210, the outer wall of the bottom end of the solar panel 3 is provided with a first limiting groove 211 corresponding to the second limiting ball 210, the outer wall of one side of the rotating rod 27 is fixedly welded with a connecting plate 29, the outer wall of one side of the connecting plate 29 is symmetrically provided with a third rotating groove 213, the inner wall of one side of the third rotating groove 213 is rotatably connected with a connecting rod 214, the outer wall of the bottom end of the solar panel 3 is symmetrically fixedly welded with a, a connecting component 4 is fixed on the outer wall of one side of the power detector 1; the connecting assembly 4 comprises a sliding groove 41, a moving plate 42, a sliding block 43, a first spring 44, a containing groove 45, a second spring 46 and a clamping plate 47, the moving plate 42 is symmetrically installed on the outer wall of one side of the power detector 1, the sliding block 43 is fixedly welded on the outer wall of one side of the moving plate 42, the sliding groove 41 is formed in the outer wall of one side of the power detector 1 corresponding to the sliding block 43, the first spring 44 is fixedly welded on the outer wall between the sliding blocks 43, the containing groove 45 is formed in the inner wall of one side of the moving plate 42, the clamping plate 47 is slidably connected to the inner wall of one side of the containing groove 45, the second spring 46 is fixedly welded on the outer wall of one side of the clamping plate 47, the other end of the second spring 46 is welded on the inner wall of the containing groove 45, the length and the width of; the outer wall of one side of the clamping plate 47 is distributed with connecting holes 5 which are connected with screws and increase the connecting effect; the motor 22 is a stepping motor, which is convenient for controlling the rotating speed of the first gear 23, adjusting the angle of the solar panel 3 and rotating the solar panel 3 along with the movement of the sun; the first gear 23 and the second gear 28 are bevel gears, so that the rotating rod 27 can be conveniently rotated; the clamping plate 47 is L-shaped, so that the clamping plate can be conveniently clamped beside the power supply equipment; the sensor firstly pulls the moving plate 42 to make the slide block 43 move along the sliding groove 41, and makes the first spring 44 in a stretching state, then pulls the clamping plate 47 out of the accommodating groove 45, makes the second spring 46 in a stretching state, makes the clamping plate 47 clamped and fixed on the pillar, at this time, loosens the clamping plate 47 and the moving plate 42, makes the clamping plate 47 fixed on the pillar under the action of the first spring 44 and the second spring 46, and then is matched with the connecting hole 5 through a screw to completely fix the clamping plate 47; then, the power detector 1 is started to detect the equipment, then the motor 22 is started to enable the first gear 23 to rotate, the first gear 23 rotates through the supporting plate 24 to lift up and down along with the rotation of the first gear 23, the solar panel 3 rotates up and down under the action of the first limiting ball 25 and the second limiting groove 212, the connecting rod 214 rotates under the action of the fourth rotating groove 216 through the connecting block 215 on the solar panel 3, then the connecting rod is fixed with the rotating rod 27 in a triangular structure through the third rotating groove 213 on the connecting plate 29, then the rotating rod 27 rotates under the action of the second gear 28, and the solar panel 3 is adjusted left and right under the action of the second limiting ball 210 and the first limiting groove 211, so that the solar panel 3 can conveniently rotate along with the movement of the sun, and the light energy conversion efficiency is improved;
in the second step, twenty-four hours of monitoring is carried out on the traction power supply equipment through the inductor;
in the third step, when the traction power supply fails, the fixed place is detected through the inductor, then the fault place is transmitted to the electric power data communication network through the field bus, and finally the fault place is transmitted to the operation and maintenance management place;
in the fourth step, the name of the equipment with the fault is firstly known, then possible problems are searched through a data server in operation and maintenance management, and then comprehensive diagnosis is carried out on the equipment according to environmental factors;
in the fifth step, the diagnosis information is notified to a power maintenance worker, the power maintenance worker prepares a repair tool to go to a fault occurrence place, and then the power maintenance worker repairs the fault occurrence place;
in the sixth step, after the repair is completed, periodic maintenance is required for many times, so that the problem is avoided.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A detection method for railway traction power supply comprises the following steps: step one, laying an inductor; step two, power supply monitoring; step three, transmitting fault information; step four, fault diagnosis; step five, fault repair; step six, regular maintenance is carried out; the method is characterized in that:
in the step one, as the railway traction power supply involves a plurality of devices, such as a traction substation, a GIS electrical appliance, a GIS cabinet, a traction transformer, a high-voltage capacitor and a lightning arrester, if the devices fail, the railway traction power supply is problematic, and therefore inductors need to be laid around the devices;
in the second step, twenty-four hours of monitoring is carried out on the traction power supply equipment through the inductor;
in the third step, when the traction power supply fails, the fixed place is detected through the inductor, then the fault place is transmitted to the electric power data communication network through the field bus, and finally the fault place is transmitted to the operation and maintenance management place;
in the fourth step, the name of the equipment with the fault is firstly known, then possible problems are searched through a data server in operation and maintenance management, and then comprehensive diagnosis is carried out on the equipment according to environmental factors;
in the fifth step, the diagnosis information is notified to a power maintenance worker, the power maintenance worker prepares a repair tool to go to a fault occurrence place, and then the power maintenance worker repairs the fault occurrence place;
in the sixth step, after the repair is completed, periodic maintenance is required for many times, so that the problem is avoided.
2. The method for detecting the railway traction power supply according to claim 1, wherein the method comprises the following steps: in the first step, the inductor comprises a power detector (1), an adjusting component (2), a solar panel (3) and a connecting component (4), the solar panel (3) is installed on the outer wall of the top end of the power detector (1), and the adjusting component (2) is fixed on the outer wall between the solar panel (3) and the power detector (1);
the adjusting component (2) comprises a first rotating groove (21), a motor (22), a first gear (23), a supporting plate (24), a first limiting ball (25), a second rotating groove (26), a rotating rod (27), a second gear (28), a connecting plate (29), a second limiting ball (210), a first limiting groove (211), a second limiting groove (212), a third rotating groove (213), a connecting rod (214), a connecting block (215) and a fourth rotating groove (216), wherein the first rotating groove (21) is formed in the inner wall of the top end of the electric power detector (1), the motor (22) is embedded and installed on the inner wall of one side of the first rotating groove (21), the first gear (23) is installed on the inner wall of one side of the first rotating groove (21), one end of an output shaft of the motor (22) is fixedly connected inside the first gear (23), the supporting plate (24) is rotatably connected to the outer wall of one side of the first gear (23), the solar cell power generation device is characterized in that a first limiting ball (25) is fixedly welded on the outer wall of the top end of the supporting plate (24), a second limiting groove (212) is formed in the outer wall of the bottom end of the solar panel (3) in a corresponding mode to the first limiting ball (25), a second rotating groove (26) is formed in the inner wall of one side of the first rotating groove (21) of the power detector (1), a rotating rod (27) is rotatably connected to the inner wall of one side of the second rotating groove (26), a second gear (28) is fixedly welded on the outer wall of one side of the rotating rod (27), one side of the second gear (28) is connected to the outer wall of the first gear (23) in a meshed mode, a second limiting ball (210) is fixedly welded on the outer wall of the top end of the rotating rod (27), a first limiting groove (211) is formed in the outer wall of the bottom end of the solar panel (3) in a corresponding mode to the second limiting ball (210), and, the third rotation groove (213) has been seted up to the symmetry on the one side outer wall of connecting plate (29), the third rotates and rotates on one side inner wall of groove (213) and is connected with connecting rod (214), symmetry welded fastening has connecting block (215) on the bottom outer wall of solar panel (3), correspond connecting block (215) on the one side outer wall of connecting rod (214) and seted up fourth rotation groove (216), be fixed with coupling assembling (4) on one side outer wall of electric power detector (1).
3. The method of claim 2, wherein the method comprises the steps of: the connecting component (4) comprises a sliding groove (41), a moving plate (42), a sliding block (43), a first spring (44), a containing groove (45), a second spring (46) and a clamping plate (47), the outer wall of one side of the power detector (1) is symmetrically provided with a movable plate (42), a sliding block (43) is welded and fixed on the outer wall of one side of the moving plate (42), a sliding groove (41) is arranged on the outer wall of one side of the electric power detector (1) corresponding to the sliding block (43), a first spring (44) is welded and fixed on the outer wall between the sliding blocks (43), a containing groove (45) is arranged on the inner wall of one side of the moving plate (42), a clamping plate (47) is connected on the inner wall of one side of the containing groove (45) in a sliding way, a second spring (46) is welded and fixed on the outer wall of one side of the clamping plate (47), and the other end of the second spring (46) is welded to the inner wall of the receiving groove (45).
4. A method of detecting a rail traction supply as claimed in claim 3, wherein: and the outer wall of one side of the clamping plate (47) is provided with connecting holes (5) in a distributed manner.
5. The method of claim 2, wherein the method comprises the steps of: the motor (22) is a stepper motor.
6. The method of claim 2, wherein the method comprises the steps of: the first gear (23) and the second gear (28) are bevel gears.
7. A method of detecting a rail traction supply as claimed in claim 3, wherein: the clamping plate (47) is L-shaped.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010951591.6A CN111999604B (en) | 2020-09-11 | 2020-09-11 | Railway traction power supply detection method |
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| CN202010951591.6A CN111999604B (en) | 2020-09-11 | 2020-09-11 | Railway traction power supply detection method |
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| CN111999604B CN111999604B (en) | 2023-06-02 |
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| CN111398303A (en) * | 2020-03-24 | 2020-07-10 | 郑州铁路职业技术学院 | Railway power supply insulator contamination online detection system |
| CN111594796A (en) * | 2020-06-15 | 2020-08-28 | 河南城建学院 | Environment-friendly intelligent street lamp control method |
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2020
- 2020-09-11 CN CN202010951591.6A patent/CN111999604B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015192645A1 (en) * | 2014-06-17 | 2015-12-23 | 西南交通大学 | Electric railway coaxial cable power supply system |
| CN106289572A (en) * | 2016-11-03 | 2017-01-04 | 南京派光信息技术有限公司 | Power supply trailing cable overheating based on distributed optical fiber temperature measuring monitoring method and system |
| CN106896296A (en) * | 2017-04-18 | 2017-06-27 | 河北中车科技发展有限公司 | High-speed railway traction power supply signal monitoring system and method |
| CN110133501A (en) * | 2019-05-15 | 2019-08-16 | 湘潭大学 | A kind of electric locomotive write pole permanent magnet synchronous traction system based on expert system guidance |
| CN110954715A (en) * | 2019-11-26 | 2020-04-03 | 郑州铁路职业技术学院 | Electric automatization power supply system detection device |
| CN111398303A (en) * | 2020-03-24 | 2020-07-10 | 郑州铁路职业技术学院 | Railway power supply insulator contamination online detection system |
| CN111594796A (en) * | 2020-06-15 | 2020-08-28 | 河南城建学院 | Environment-friendly intelligent street lamp control method |
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