CN105501234A - Integrated electrical control system and method for subway overhead line system complex operating vehicle - Google Patents
Integrated electrical control system and method for subway overhead line system complex operating vehicle Download PDFInfo
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- CN105501234A CN105501234A CN201610018057.3A CN201610018057A CN105501234A CN 105501234 A CN105501234 A CN 105501234A CN 201610018057 A CN201610018057 A CN 201610018057A CN 105501234 A CN105501234 A CN 105501234A
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- control system
- contactor
- operation vehicle
- comprehensive operation
- subway contact
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C17/00—Arrangement or disposition of parts; Details or accessories not otherwise provided for; Use of control gear and control systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
- B60M1/00—Power supply lines for contact with collector on vehicle
- B60M1/12—Trolley lines; Accessories therefor
- B60M1/28—Manufacturing or repairing trolley lines
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Automation & Control Theory (AREA)
- Train Traffic Observation, Control, And Security (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses an integrated electrical control system and method for a subway overhead line system complex operating vehicle. The system comprises a master control system which comprises a power switching device, wherein the power switching device is connected with a primary circuit protection device, a secondary circuit protection device and a generator set of the subway overhead line system complex operating vehicle; the primary circuit protection device is connected with a traction walking system, an operation control system, an auxiliary control system and an emergency protection system; the secondary circuit protection device is connected with the traction walking system, the operation control system, the auxiliary control system and the emergency protection system through relays or breakers; the emergency protection system is also connected with the traction walking system, the operation control system and the auxiliary control system.
Description
Technical field
The present invention relates to a kind of control system, particularly relate to a kind of integrated electrical control system for subway contact system comprehensive operation vehicle and method thereof.
Background technology
Contact system is the important component part of track traffic, is mainly underground railway track vehicle and provides power, and the attaching parts of contact system is overheated owing to easily occurring by the impact of external factor, can cause power failure, cause withdrawal of train accident time serious.Therefore need the mode of operation understanding subway contact net equipment in time, eliminate accident potential, ensure safe operation, realize the repair based on condition of component of contact net equipment, to ensure the normal operation of subway equipment.
In prior art, contact system comprehensive operation vehicle function ratio is more single, integrated is little, mainly in state's iron application, function is only limitted to the installation, maintenance of contact system top equipment under power down mode and routine inspection, maintenance, and many, the contact system of equipment interlocks in subway tunnel, existing Operation Van cannot meet the service requirements safeguarding subway tunnel wall, adjacent lines.
Summary of the invention
The object of this invention is to provide a kind of integrated electrical control system for subway contact system comprehensive operation vehicle and method thereof, this system can not safeguard the maintenance issue of subway tunnel wall and relation line in prior art for solving.
For achieving the above object, the present invention is by the following technical solutions:
A kind of integrated electrical control system for subway contact system comprehensive operation vehicle, comprise: master control system, it comprises power transfer device, described power transfer device is connected with secondary circuit fender guard respectively with primary loop fender guard, described power transfer device is also connected with the generator set of subway contact system comprehensive operation vehicle, and described primary loop fender guard is connected with emergency protection system respectively with traction running gear, operation-control system, supplementary controlled system; Described secondary circuit fender guard is connected with emergency protection system with traction running gear, operation-control system, supplementary controlled system respectively by relay or circuit breaker; Described emergency protection system is also connected with supplementary controlled system respectively with traction running gear, operation-control system.
Described traction running gear comprises driver's desk, and described driver's desk comprises the first controller, described first controller with heavily join handling device, traction braking handling device is connected respectively with supplementary controlled system handling device.
Described first controller is also connected with read out instrument.
Described operation-control system comprises second controller, and described second controller is connected with aloft work system respectively with Contact Line Detection System, high-pressure cleaning system.
Described Contact Line Detection System comprises Contact Line Detection device, and described Contact Line Detection device is connected with imaging processing equipment, and described imaging processing equipment is connected with central process unit, and described central process unit is connected with second controller.
Described high-pressure cleaning system comprises high-pressure cleaner, and described high-pressure cleaner is connected with second controller, and described high-pressure cleaner is connected with water tank.
Described emergency protection system comprises power transfer module, described power transfer module is connected with the generator set of subway contact system comprehensive operation vehicle, described power transfer module is connected with the input end of the first DC contactor, the control end of the first DC contactor is connected with the mouth of the first low voltage test relay, and the input end of the first low voltage test relay is connected with generator set; The mouth of the first DC contactor is connected with supplementary controlled system respectively with traction running gear, operation-control system;
Described generator set is also connected with battery pack; Described battery pack is connected with the input end of the second DC contactor, and the control end of the second DC contactor is connected with the mouth of also the first low voltage test relay; The mouth of the second DC contactor is connected with supplementary controlled system respectively with traction running gear, operation-control system.
For a method of work for the integrated electrical control system of subway contact system comprehensive operation vehicle, comprising:
When the generator set of subway contact system comprehensive operation vehicle normally works, power transfer device is connected with the power supply of subway contact system comprehensive operation vehicle, and primary loop fender guard provides power distribution respectively for drawing running gear, operation-control system, supplementary controlled system and emergency protection system; Secondary circuit fender guard provides safety protection control respectively for drawing running gear, operation-control system, supplementary controlled system and emergency protection system;
When the alternator failure of subway contact system comprehensive operation vehicle, emergency protection system starts, and emergency protection system provides power supply supply for drawing running gear, supplementary controlled system and aloft work system.
When the electrical generator of subway contact system comprehensive operation vehicle normally works; first low voltage test relay test of emergency protection system is normal to generator set; first DC contactor conducting; generator set forms current supply circuit by power transfer module and the first DC contactor, and subway contact system comprehensive operation vehicle normally works.
When the alternator failure of subway contact system comprehensive operation vehicle, the second DC contactor conducting of emergency protection system, cuts off the first DC contactor simultaneously, and the second DC contactor and the first DC contactor interlock conducting; Automatically switch to calibration package, form current supply circuit by battery pack and the first DC contactor, emergent output services.
Beneficial effect of the present invention is:
(1) read out instrument in traction running gear of the present invention can show this car power information, operating condition information in real time on driver's cab driver's desk, solve in prior art and lack monitoring in real time, be unfavorable for the technical matters of the error state in operating personal Timeliness coverage operational process; Operation-control system coverage increases, and covers the maintenance of Contact Line Detection, insulator high pressure cleaning, contact system high-altitude maintenance and adjacent lines, can meet the comprehensive upkeep operation demand of growing subway contact system completely;
(2) emergency protection system of the present invention is when this car power fail, automatically switch to emergency protection system, be responsible for the power supply supply of traction running gear, supplementary controlled system, ensure the information displaying of traction running gear, ensure that in supplementary controlled system, illuminating lamp, signal marking lamp normally work, ensure that driver's cab drafting apparatus normally runs, handling for car load provides security context; Aloft work control desk in the system of aloft work simultaneously, controls aloft work facility and is recovered to running state, realize the emergent safe operation under failure condition.
(3) emergency protection system of the present invention solves the control defect of battery pack and generator set two kinds of power supply paired runnings, extends battery life; Can generator set and battery pack export in real-time detecting system voltage signal, for system provides safe and reliable power environment; Emergency protection system of the present invention automatically switches, and do not need manual switching, stopped emergent dead band.
Accompanying drawing explanation
Fig. 1 is the structural representation of subway contact system comprehensive operation vehicle integrated electrical control system of the present invention;
Fig. 2 is the structural representation of emergency protection system of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing and embodiment, the present invention will be further described:
Fig. 1 is the functional block diagram of the integrated electrical control system for subway contact system comprehensive operation vehicle of the present invention.
Integrated electrical control system for subway contact system comprehensive operation vehicle of the present invention, comprising: master control system, traction running gear, operation-control system, supplementary controlled system and emergency protection system.
After wherein master control system is normally run, could run traction running gear, operation-control system and supplementary controlled system, master control system is connected with emergency protection system, for emergency protection system provides power protection simultaneously.In this car generator set et out of order situation, emergency protection system starts, and for traction running gear, supplementary controlled system and aloft work system provide power supply supply, ensures the display of vehicle operation information, the withdrawal of aloft work system high and medium work tool.The information state of operation-control system is in the display screen display of drawing running gear, and handled easily person observes.Described operation-control system, covers the maintenance of Contact Line Detection, insulator high pressure cleaning, contact system high-altitude maintenance and adjacent lines.
Master control system 1, comprises power transfer device 1-1, can select this car generator set, heavily join generator set or external source; Primary loop fender guard 1-2 and secondary circuit fender guard 1-3 all realizes the power distribution of drawing running gear, operation-control system, supplementary controlled system and emergency protection system, safety protection control and management.
Traction running gear 2, comprises driver's desk 2-1, is responsible for walking manipulation and the Signal aspects of car load.Described driver's desk 2-1, comprises the first controller, described first controller with heavily join handling device 2-1-1, traction braking handling device 2-1-2 is connected respectively with supplementary controlled system handling device 2-1-3.
Heavily the version of connection handling device 2-1-1, traction braking handling device 2-1-2 and supplementary controlled system handling device 2-1-3 is existing structure.
Further, the first controller is also connected with read out instrument.Read out instrument is read-out 2-2.
Operation-control system 3 comprises second controller, and described second controller is connected with aloft work system 3-3 respectively with Contact Line Detection System 3-1, high-pressure cleaning system 3-2.
Contact Line Detection System 3-1, comprises central process unit 3-1-1, imaging processing equipment 3-1-2, Contact Line Detection device 3-1-3.The signal of Contact Line Detection device 3-1-3, through imaging processing equipment 3-1-2 process, sends to central process unit 3-1-1.The signal that central process unit 3-1-1 process obtains, and image display, be convenient to the running state of direct vision and analysis contact system circuit.
High-pressure cleaning system 3-2, comprise high-pressure cleaner 3-2-1, it is connected with second controller; High-pressure cleaner 3-2-1 is connected with water tank 3-2-2, and high-pressure cleaner 3-2-1 draws the water of water tank 3-2-2, completes the cleaning of insulator.High-pressure cleaner 3-2-1 belongs to portable equipment, flexible and convenient to use.
Aloft work system 3-3, comprises aloft work control desk 3-3-1 and aloft work facility 3-3-2.Aloft work control desk 3-3-1, control operation aloft work facility 3-3-2, carries out the repair and maintenance of subway tunnel wall, adjacent lines.
Supplementary controlled system 4, comprises illumination equipment 4-1, marking signal lamp 4-2 and drafting apparatus 4-3.Supplementary controlled system 4 throws light on and meets the marking signal of railway standard and the drafting apparatus of driver's cab fully for each position of full car provides, for operator provides good interactive operating environment.
Emergency protection system 4, under this car power failure condition, for traction running gear 3-4, supplementary controlled system 4 and aloft work system 3-3 provide power supply supply, ensure under this car power fail, also the information displaying ensureing traction running gear 2 can be run, ensure that in supplementary controlled system 4, illumination equipment 4-1, marking signal lamp 4-2 normally work, ensure that driver's cab drafting apparatus 4-3 normally runs, handling for car load provides security context; Aloft work control desk 3-3-1 in the system 3-3 of aloft work simultaneously, controls aloft work facility 3-3-2 and is recovered to running state, realize the emergent safe operation under failure condition.
Read-out 2-2 is for showing the information state of traction Running System 2 and operation-control system 3, and handled easily person observes.
Fig. 2 is the functional block diagram of emergency protection system of the present invention, this emergency flight control system, comprise: power transfer module, it is connected with the generator set for subway contact system comprehensive operation vehicle, described power transfer module is connected with the input end of the first DC contactor, the control end of the first DC contactor is connected with the mouth of the first low voltage test relay, the input end of the first low voltage test relay is connected with generator set, and the first low voltage test relay is used for the output voltage signal detecting generator set in real time; The mouth of the first DC contactor is connected with supplementary controlled system respectively with traction running gear, operation-control system;
Described generator set is also connected with battery pack, and generator set is used for for battery charging; Described battery pack is connected with the input end of the second DC contactor, and the control end of the second DC contactor is connected with the mouth of also the first low voltage test relay; The mouth of the second DC contactor is connected with supplementary controlled system respectively with traction running gear, operation-control system.
Wherein, battery pack is also connected with the second low voltage test relay, and described second low voltage test relay is used for the output voltage signal detecting battery pack in real time.
Further, power transfer module and first protects one end of fuse to be connected, and the other end of the first protection fuse is connected with the input end of the first DC contactor.
Further, battery pack and second protects one end of fuse to be connected, and the other end of the second protection fuse is connected with the input end of the second DC contactor.
Wherein, the first protection fuse and the second protection fuse are respectively used to the voltage of protection power source module output and the voltage of battery pack output, avoid occurring that too high voltage works the mischief to needing electric equipment in railway rail car.
In FIG, for the illumination equipment of supplementary controlled system in railway rail car:
First protection fuse is that F1 protects fuse; First DC contactor is KM1 DC contactor.In the present embodiment, the voltage signal that generator set exports is 220V AC signal, and wherein, the first low voltage test relay is 220VAC low voltage test relay, and it is for detecting the magnitude of voltage of the 220V AC signal of generator set output in real time.
Second protection fuse is that F2 protects fuse; Second DC contactor is KM2 DC contactor.In the present embodiment, the voltage signal that battery pack exports is 24V direct current signal, and wherein, the second low voltage test relay is 24VDC low voltage test relay, and it is for detecting the magnitude of voltage that the voltage signal of battery pack output is 24V direct current signal in real time.
Wherein, the mouth of generator set is connected with the input end of charging control circuit, and the mouth of described charging control circuit is connected with battery pack.
Further, the mouth of the first DC contactor is also connected in series an indicator lamp.
Further, the mouth of the second DC contactor is also connected in series an indicator lamp.
Further, indicator lamp is LED.
The principle of work of the electric emergency flight control system for railway engineering car of the present invention is:
When 220VAC low voltage test relay test is normal to generator set, conducting KM1 DC contactor.
When generator set fault, conducting KM2 DC contactor, cuts off KM1 DC contactor simultaneously.KM2 DC contactor and KM1 DC contactor interlock conducting.
When generator set normally works output, generator set protects fuse and KM1 DC contactor to form current supply circuit by power transfer module, F2, normally works.
When generator set fault can not export, automatically switch to calibration package, protect fuse and KM1 DC contactor to form current supply circuit by battery pack, F1, emergent output services.
Under normal circumstances, generator set work; When generator set et out of order, emergency flight control system automatically switches to battery pack and powers, and ensures that railway engineering licence clear signal system is normally run.
The invention solves the defect that prior art can not automatically switch to contingency mode, and when ensureing that fault is met an urgent need, battery pack normally exports, can battery life be extended simultaneously.In addition, the present invention goes back 24VDC, 220VAC voltage in real-time detecting system, for system provides safe and reliable power environment.
In a word; of the present invention for traction running gear, operation-control system, supplementary controlled system and the emergency protection system in the integrated electrical control system of subway contact system comprehensive operation vehicle; also other versions existing can be adopted respectively to reach identical function, will be not repeated herein.
The method of work of the integrated electrical control system for subway contact system comprehensive operation vehicle of the present invention, comprising:
When the generator set of subway contact system comprehensive operation vehicle normally works, power transfer device is connected with the power supply of subway contact system comprehensive operation vehicle, and primary loop fender guard provides power distribution respectively for drawing running gear, operation-control system, supplementary controlled system and emergency protection system; Secondary circuit fender guard provides safety protection control respectively for drawing running gear, operation-control system, supplementary controlled system and emergency protection system;
When the alternator failure of subway contact system comprehensive operation vehicle, emergency protection system starts, and emergency protection system provides power supply supply for drawing running gear, supplementary controlled system and aloft work system.
When the electrical generator of subway contact system comprehensive operation vehicle normally works; first low voltage test relay test of emergency protection system is normal to generator set; first DC contactor conducting; generator set forms current supply circuit by power transfer module and the first DC contactor, and subway contact system comprehensive operation vehicle normally works.
When the alternator failure of subway contact system comprehensive operation vehicle, the second DC contactor conducting of emergency protection system, cuts off the first DC contactor simultaneously, and the second DC contactor and the first DC contactor interlock conducting; Automatically switch to calibration package, form current supply circuit by battery pack and the first DC contactor, emergent output services.
By reference to the accompanying drawings the specific embodiment of the present invention is described although above-mentioned; but the restriction not to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection domain of the present utility model.
Claims (10)
1. the integrated electrical control system for subway contact system comprehensive operation vehicle, it is characterized in that, comprise: master control system, it comprises power transfer device, described power transfer device is connected with secondary circuit fender guard respectively with primary loop fender guard, described power transfer device is also connected with the generator set of subway contact system comprehensive operation vehicle, and described primary loop fender guard is connected with emergency protection system respectively with traction running gear, operation-control system, supplementary controlled system; Described secondary circuit fender guard is connected with emergency protection system with traction running gear, operation-control system, supplementary controlled system respectively by relay or circuit breaker; Described emergency protection system is also connected with supplementary controlled system respectively with traction running gear, operation-control system.
2. a kind of integrated electrical control system for subway contact system comprehensive operation vehicle as claimed in claim 1, it is characterized in that, described traction running gear comprises driver's desk, described driver's desk comprises the first controller, described first controller with heavily join handling device, traction braking handling device is connected respectively with supplementary controlled system handling device.
3. a kind of integrated electrical control system for subway contact system comprehensive operation vehicle as claimed in claim 2, it is characterized in that, described first controller is also connected with read out instrument.
4. a kind of integrated electrical control system for subway contact system comprehensive operation vehicle as claimed in claim 1, it is characterized in that, described operation-control system comprises second controller, and described second controller is connected with aloft work system respectively with Contact Line Detection System, high-pressure cleaning system.
5. a kind of integrated electrical control system for subway contact system comprehensive operation vehicle as claimed in claim 4, it is characterized in that, described Contact Line Detection System comprises Contact Line Detection device, described Contact Line Detection device is connected with imaging processing equipment, described imaging processing equipment is connected with central process unit, and described central process unit is connected with second controller.
6. a kind of integrated electrical control system for subway contact system comprehensive operation vehicle as claimed in claim 4, it is characterized in that, described high-pressure cleaning system comprises high-pressure cleaner, and described high-pressure cleaner is connected with second controller, and described high-pressure cleaner is connected with water tank.
7. a kind of integrated electrical control system for subway contact system comprehensive operation vehicle as claimed in claim 1, it is characterized in that, described emergency protection system comprises power transfer module, described power transfer module is connected with the generator set of subway contact system comprehensive operation vehicle, described power transfer module is connected with the input end of the first DC contactor, the control end of the first DC contactor is connected with the mouth of the first low voltage test relay, and the input end of the first low voltage test relay is connected with generator set; The mouth of the first DC contactor is connected with supplementary controlled system respectively with traction running gear, operation-control system;
Described generator set is also connected with battery pack; Described battery pack is connected with the input end of the second DC contactor, and the control end of the second DC contactor is connected with the mouth of also the first low voltage test relay; The mouth of the second DC contactor is connected with supplementary controlled system respectively with traction running gear, operation-control system.
8. a method of work for the integrated electrical control system for subway contact system comprehensive operation vehicle as described in as arbitrary in claim 1-7, is characterized in that, comprising:
When the generator set of subway contact system comprehensive operation vehicle normally works, power transfer device is connected with the power supply of subway contact system comprehensive operation vehicle, and primary loop fender guard provides power distribution respectively for drawing running gear, operation-control system, supplementary controlled system and emergency protection system; Secondary circuit fender guard provides safety protection control respectively for drawing running gear, operation-control system, supplementary controlled system and emergency protection system;
When the alternator failure of subway contact system comprehensive operation vehicle, emergency protection system starts, and emergency protection system provides power supply supply for drawing running gear, supplementary controlled system and aloft work system.
9. as claimed in claim 8 for the method for work of the integrated electrical control system of subway contact system comprehensive operation vehicle; it is characterized in that; when the electrical generator of subway contact system comprehensive operation vehicle normally works; first low voltage test relay test of emergency protection system is normal to generator set; first DC contactor conducting; generator set forms current supply circuit by power transfer module and the first DC contactor, and subway contact system comprehensive operation vehicle normally works.
10. as claimed in claim 8 for the method for work of the integrated electrical control system of subway contact system comprehensive operation vehicle, it is characterized in that, when the alternator failure of subway contact system comprehensive operation vehicle, second DC contactor conducting of emergency protection system, cut off the first DC contactor, the second DC contactor and the first DC contactor interlock conducting simultaneously; Automatically switch to calibration package, form current supply circuit by battery pack and the first DC contactor, emergent output services.
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| CN201610018057.3A CN105501234B (en) | 2016-01-12 | 2016-01-12 | Integrated electrical control system and its method for subway contact net comprehensive operation vehicle |
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| CN201610018057.3A CN105501234B (en) | 2016-01-12 | 2016-01-12 | Integrated electrical control system and its method for subway contact net comprehensive operation vehicle |
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| CN105501234B CN105501234B (en) | 2017-11-03 |
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| CN107188098A (en) * | 2017-07-12 | 2017-09-22 | 徐工集团工程机械有限公司 | Work high above the ground truck control device, method and high-altitude operation vehicle |
| CN107299567A (en) * | 2017-06-27 | 2017-10-27 | 北京拓博尔轨道维护技术有限公司 | A kind of power contacts net and the double dynamical rail milling car of batteries |
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| CN111086390A (en) * | 2020-01-06 | 2020-05-01 | 中车株洲电力机车有限公司 | High-voltage power supply conversion system and method for urban rail vehicle |
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| CN106144977A (en) * | 2016-08-15 | 2016-11-23 | 湖南五新隧道智能装备股份有限公司 | A kind of tunnel arch Operation Van electrical system and tunnel arch Operation Van |
| CN106451749A (en) * | 2016-11-21 | 2017-02-22 | 铁道第三勘察设计院集团有限公司 | Emergency protection device and method under malfunctioning condition of traction substation control protection system |
| CN106451749B (en) * | 2016-11-21 | 2023-08-18 | 中国铁路设计集团有限公司 | Emergency protection device and protection method for traction substation control protection system under abnormal working condition |
| CN107299567B (en) * | 2017-06-27 | 2023-06-20 | 北京拓博尔轨道维护技术有限公司 | Dual-power steel rail milling and grinding vehicle for electric contact network and storage battery pack |
| CN107299567A (en) * | 2017-06-27 | 2017-10-27 | 北京拓博尔轨道维护技术有限公司 | A kind of power contacts net and the double dynamical rail milling car of batteries |
| CN107188098A (en) * | 2017-07-12 | 2017-09-22 | 徐工集团工程机械有限公司 | Work high above the ground truck control device, method and high-altitude operation vehicle |
| CN108817693A (en) * | 2018-07-09 | 2018-11-16 | 苏州大族松谷智能装备股份有限公司 | A kind of electric control system of laser cutting machine |
| CN109677429A (en) * | 2018-12-26 | 2019-04-26 | 中车山东机车车辆有限公司 | Subway battery contact net comprehensive operation vehicle |
| CN110406552A (en) * | 2019-09-05 | 2019-11-05 | 宝鸡中车时代工程机械有限公司 | Synthetic detection vehicle for urban track traffic |
| CN110406552B (en) * | 2019-09-05 | 2024-05-10 | 宝鸡中车时代工程机械有限公司 | Comprehensive detection vehicle for urban rail transit |
| CN111086390A (en) * | 2020-01-06 | 2020-05-01 | 中车株洲电力机车有限公司 | High-voltage power supply conversion system and method for urban rail vehicle |
| CN112018877B (en) * | 2020-08-31 | 2022-06-03 | 江苏远卓电气科技有限公司 | Electrical control method for multi-port engineering vehicle |
| CN112018877A (en) * | 2020-08-31 | 2020-12-01 | 江苏远卓电气科技有限公司 | Electrical control method for multi-port engineering vehicle |
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| CN105501234B (en) | 2017-11-03 |
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