CN113085554A - Automatic control technology for power supply of direct-current trolley type rail electric locomotive - Google Patents
Automatic control technology for power supply of direct-current trolley type rail electric locomotive Download PDFInfo
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- CN113085554A CN113085554A CN202110264184.2A CN202110264184A CN113085554A CN 113085554 A CN113085554 A CN 113085554A CN 202110264184 A CN202110264184 A CN 202110264184A CN 113085554 A CN113085554 A CN 113085554A
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- 230000003137 locomotive effect Effects 0.000 title claims abstract description 53
- 238000005516 engineering process Methods 0.000 title claims abstract description 19
- 238000001514 detection method Methods 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 14
- 230000009471 action Effects 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 description 5
- 238000004891 communication Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011897 real-time detection Methods 0.000 description 2
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- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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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
- 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
- B60L9/00—Electric propulsion with power supply external to the vehicle
- B60L9/02—Electric propulsion with power supply external to the vehicle using dc motors
- B60L9/08—Electric propulsion with power supply external to the vehicle using dc motors fed from ac supply lines
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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
- B60L2200/00—Type of vehicles
- B60L2200/26—Rail vehicles
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention provides a direct-current trolley tramcar power supply automatic control technology, and relates to the technical field of direct-current trolley tramcar control. The automatic control technology for the power supply of the direct-current trolley tramcar detects the running state of the trolley tramcar in real time by utilizing the automatic control technology, when a starting running signal manually sent by the trolley tramcar is successfully detected, the high-voltage vacuum switch unit can be connected to a high-voltage direct-current power supply required by the tramcar, and when the current detection unit detects that the load current is lower than a set value in a time range set by the display screen setting unit, the high-voltage vacuum switch unit can immediately cut off the high-voltage direct-current power supply; the high-voltage vacuum switch unit consists of a direct-current 450V high-voltage vacuum switch; the current detection unit consists of a Hall direct current sensor; the display screen setting unit consists of a configurable industrial control setting screen with a ModbusRTU protocol; the automatic control technique is based on a control panel. According to the rail electric locomotive running detection device, the control panel detects running signals of the rail electric locomotive in real time, when the running signals are successfully detected, the control panel controls the high-voltage vacuum switch to be closed, the high-voltage direct-current power supply is connected to the overhead line to be used for running of the rail electric locomotive, and when the control panel does not detect running current of the electric locomotive within the set time, the control panel immediately switches off the high-voltage vacuum switch.
Description
Technical Field
The invention relates to the technical field of power supply control of direct-current trolley type rail electric locomotives, in particular to an automatic power supply control technology of a direct-current trolley type rail electric locomotive.
Background
The direct current overhead line type rail electric locomotive is widely applied to mine enterprises, the rail electric locomotive needs to provide a direct current high-voltage power supply of not less than 250V, the cathode of the direct current power supply is connected with a rail, the anode of the direct current power supply is connected with an overhead line, and the power supply process of the electric locomotive is realized by a special conductive rod in contact with the overhead line. At present, most overhead lines are continuously electrified under the condition that an electric locomotive is not operated, and cannot be automatically powered off. Or under the condition that the electric locomotive does not run, the high-voltage switch needs to be manually operated manually so as to disconnect the direct-current high-voltage power supply on the overhead line. The continuous electrification of the overhead line has serious potential safety hazard, for example, people carry an easily conductive tool and touch the overhead line carelessly, so that the electric shock danger is easily caused; the manual disconnection high voltage switch not only reduces work efficiency, and moreover when personnel forget the outage, the overhead line continues to be electrified, still has above-mentioned potential safety hazard.
In view of the above problems, it is necessary to invent an automatic control technology for automatically disconnecting a dc high voltage power supply carried by an overhead line when an electric locomotive is not running, so that it is very necessary to invent an automatic control technology for supplying power to a dc trolley type rail electric locomotive.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects in the prior art, the invention provides an automatic power supply control technology for a direct current trolley type rail electric locomotive, and solves the defects in the prior art.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: the automatic control technology for the power supply of the direct current trolley tramcar monitors the running state of the direct current trolley tramcar in real time by utilizing the automatic control technology, and when a running signal is successfully detected, a high-voltage vacuum switch unit is immediately closed, and a high-voltage direct current power supply is connected to an overhead line; when the current detected by the current detection unit is within the time range set by the display screen setting unit and is continuously smaller than the running current value set by the display screen setting unit, the high-voltage vacuum switch unit is immediately switched off, and the power supply management of the high-voltage direct-current power supply is completed.
The automatic control technique is based on a control panel.
Preferably, the high-voltage vacuum switch is a high-voltage direct-current vacuum switch used within 450V, and the control panel controls the coil inside the high-voltage vacuum switch to be powered on and powered off to achieve the connection and disconnection of a normally open contact of the high-voltage vacuum switch, so that the power supply process of an overhead line is achieved.
Preferably, the display screen setting unit is composed of an industrial control display screen, the display screen is provided with a Modbus RTU communication port, the display screen can be programmed through special configuration software of a computer, and the display screen is communicated with the Modbus RTU interface carried by the control panel, so that user setting of parameters such as current values and time values is realized.
Preferably, the current detection unit consists of a Hall current sensor, and the high-voltage power supply wire penetrates through a detection hole of the Hall current sensor to realize real-time detection of the high-voltage direct current.
Preferably, the control panel uses a microprocessor as a control core, and the control method of the control panel is as follows:
1) monitoring the running signal of the rail electric locomotive in real time through an internal management program, and automatically judging whether the signal belongs to a normal running signal or not after a control board monitors the signal; and after the control board confirms that the signal is a normal operation signal, the control board controls the high-voltage vacuum switch to be closed, and the high-voltage power supply is connected to the overhead line.
2) After the high-voltage vacuum switch is closed, the control panel monitors the running current of the electric locomotive under the overhead line in real time; when the current is in the operating current range set by the display screen setting unit, the control board continuously controls the high-voltage vacuum switch to be in a closed state; when the current is continuously smaller than the running current value set by the display screen setting unit within the time range set by the display screen setting unit, the control board can judge that the electric locomotive stops running, and the control board can immediately disconnect the high-voltage vacuum switch and cut off the high-voltage direct-current power supply on the overhead line.
3) The running signal of the electric locomotive identified by the control panel is in a dotting mode or a safety mode, and mode selection can be selectively set in a display screen setting unit; the dotting signal is the dotting times for the electric locomotive switch to be continuously turned on and off within the time set by the display screen setting unit by the electric locomotive operator, and the more times are set, the more accurate the electric locomotive running signal is, so that the signal safety is better ensured; the safe mode is that on the basis of the dotting mode, dotting current detection is added, and the current value is not within the range of the current value set by the display screen setting unit and is regarded as signal failure. The mode is the most secure.
Preferably, the control panel comprises a control chip, a printed circuit board, an electronic component, a status indicator lamp and the like, and the control panel is used for connecting the display screen setting unit, the current detection unit and the high-voltage vacuum switch unit to complete the functions of signal detection, high-voltage vacuum switch action and the like; and secondly, the state indicator lamp of the system is transmitted to 4 LED lamps on the box body of the system through the control panel, and the detection signal, the power supply, the action of the high-voltage vacuum switch and the system fault of the system are respectively represented. And thirdly, the manual and automatic switching function of the system is transmitted to 1 knob switch on the box body through the control panel, and the system fault resetting function is transmitted to 1 self-resetting button on the box body through the control panel.
Preferably, the control panel has a manual function and an automatic function, the function is realized through a manual knob switch and an automatic knob switch on the box body, when the knob switch is in a manual mode, the high-voltage vacuum switch is directly closed unconditionally, the high-voltage direct-current power supply is continuously connected to an overhead line, and the high-voltage direct-current power supply is not automatically disconnected any more; when the knob switch is in an automatic mode, the control panel participates in the operation of the whole set of system.
Preferably, the control panel has higher safety protection for human body; when the trolley locomotive does not run, the overhead line is not connected with the high-voltage direct-current power supply, and when the trolley locomotive is touched by a person, the control panel cannot be regarded as an electric locomotive running signal, so that the control panel is not dangerous, and the production safety level is greatly improved.
(III) advantageous effects
The invention provides a direct current trolley tramcar power supply automatic control technology; the following advantageous effects are provided.
1. According to the invention, the control panel can judge whether a direct current locomotive is about to start or not and connect the direct current high-voltage power supply to the overhead line. When the direct current locomotive does not run for more than the preset time, the system can judge that the electric locomotive stops working and disconnect the direct current high-voltage power supply. The process can effectively ensure that the direct-current locomotive does not run, the direct-current high-voltage power supply is not connected to the overhead line, thereby avoiding electric shock of people and ensuring safe running.
2. According to the invention, after the control board is installed, personnel can carry out power-off operation without manually operating a high-voltage switch, and the system can monitor the running state of the electric locomotive in real time, so that the automatic power supply process is realized, and the working efficiency is improved.
(IV) description of the drawings
FIG. 1 is a flow chart of a control method of the present invention.
(V) detailed description of the preferred embodiments
The following will clearly and completely describe the technical solutions 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 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.
Example (b):
the embodiment of the invention provides an automatic power supply control technology for a direct-current trolley tramcar, which utilizes a micro-control board of a single chip microcomputer to monitor the running state of the direct-current trolley tramcar in real time, when a running signal is successfully detected, a high-voltage vacuum switch unit is immediately closed, and a high-voltage direct-current power supply is connected to an overhead line; when the current detected by the current detection unit is within the time range set by the display screen setting unit and is continuously smaller than the running current value set by the display screen setting unit, the high-voltage vacuum switch unit is immediately switched off, and the power supply management of the high-voltage direct-current power supply is completed.
The automatic control technique is based on a control panel.
The high-voltage vacuum switch is a high-voltage direct-current vacuum switch used within 450V, and the control panel controls the coil inside the high-voltage vacuum switch to be powered on and powered off to achieve the on-off of a normally open contact of the high-voltage vacuum switch, so that the power supply process of an overhead line is achieved.
The display screen setting unit consists of a configurable industrial control display screen, the display screen is provided with a Modbus RTU communication port, and the display screen can be programmed through special configuration software of a computer to realize the intercommunication with the Modbus RTU interface carried by the control panel, so that the user setting of parameters such as current values, time values and the like is realized.
The current detection unit consists of a Hall current sensor, and a high-voltage power supply wire penetrates through a Hall sensor detection hole to realize real-time detection of high-voltage direct current.
In the invention, the control panel takes a microprocessor as a control core, and the control method of the control panel is as follows.
1) Monitoring the running signal of the rail electric locomotive in real time through an internal management program, and automatically judging whether the signal belongs to a normal running signal or not after a control board monitors the signal; and after the control board confirms that the signal is a normal operation signal, the control board controls the high-voltage vacuum switch to be closed, and the high-voltage power supply is connected to the overhead line.
2) After the high-voltage vacuum switch is closed, the control panel monitors the running current of the electric locomotive under the overhead line in real time; when the current is in the operating current range set by the display screen setting unit, the control board continuously controls the high-voltage vacuum switch to be in a closed state; when the current is continuously smaller than the running current value set by the display screen setting unit within the time range set by the display screen setting unit, the control board can judge that the electric locomotive stops running, and the control board can immediately disconnect the high-voltage vacuum switch and cut off the high-voltage direct-current power supply on the overhead line.
3) The running signal of the electric locomotive identified by the control panel is in a dotting mode or a safety mode, and mode selection can be selectively set in a display screen setting unit; the dotting signal is the dotting times for the electric locomotive switch to be continuously turned on and off within the time set by the display screen setting unit by the electric locomotive operator, and the more times are set, the more accurate the electric locomotive running signal is, so that the signal safety is better ensured; the safe mode is that on the basis of the dotting mode, dotting current detection is added, and the current value is not within the range of the current value set by the display screen setting unit and is regarded as signal failure. The mode is the most secure.
The control panel comprises a control chip, a printed circuit board, electronic components, a status indicator lamp and the like, and the control panel is characterized in that a display screen setting unit, a current detection unit and a high-voltage vacuum switch unit are connected to complete the functions of signal detection, high-voltage vacuum switch action and the like; and secondly, the state indicator lamp of the system is transmitted to 4 LED lamps on the box body of the system through the control panel, and the detection signal, the power supply, the action of the high-voltage vacuum switch and the system fault of the system are respectively represented. And thirdly, the manual and automatic switching function of the system is transmitted to 1 knob switch on the box body through the control panel, and the system fault resetting function is transmitted to 1 self-resetting button on the box body through the control panel.
According to the invention, the control panel has a manual function and an automatic function, the function is realized through a manual knob switch and an automatic knob switch on the box body, when the knob switch is in a manual mode, the high-voltage vacuum switch is directly closed unconditionally, a high-voltage direct-current power supply is continuously connected to an overhead line, and the high-voltage direct-current power supply is not automatically disconnected any more; when the knob switch is in an automatic mode, the control panel participates in the operation of the whole set of system.
In the invention, the control panel has higher safety protection for human body; when the trolley locomotive does not run, the overhead line is not connected with the high-voltage direct-current power supply, and when the trolley locomotive is touched by a person, the control panel cannot be regarded as an electric locomotive running signal, so that the control panel is not dangerous, and the production safety level is greatly improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a direct current overhead line formula tram power supply automatic control technique which characterized in that: the technology utilizes an automatic control technology to monitor the running state of the direct current overhead line type rail electric locomotive in real time, when a running signal is successfully detected, a high-voltage vacuum switch unit is immediately closed, and a high-voltage direct current power supply is connected to an overhead line; when the current detected by the current detection unit is within the time range set by the display screen setting unit and is continuously smaller than the running current value set by the display screen setting unit, the high-voltage vacuum switch unit is immediately switched off to complete the power supply management of the high-voltage direct-current power supply;
the high-voltage vacuum switch unit consists of a direct-current 450V high-voltage vacuum switch and is used for connecting a direct-current power supply to an overhead line;
the display screen setting unit consists of a configurable industrial control setting screen with a ModbusRTU protocol and is used for realizing user side setting of control parameters;
the current detection unit consists of a Hall direct current sensor and is used for detecting the running current of the electric locomotive on the overhead line;
the automatic control technique is based on a control panel.
2. The automatic control technology for the power supply of the direct-current trolley buses as claimed in claim 1, characterized in that: the control panel takes a micro-control panel as a control core, and the control method of the control panel comprises the following steps:
1) monitoring the running signal of the rail electric locomotive in real time through an internal management program, and automatically judging whether the signal belongs to a normal running signal or not after a control board monitors the signal; when the control panel confirms that the signal is a normal operation signal, the control panel controls the high-voltage vacuum switch to be closed, and a high-voltage power supply is connected to an overhead line;
2) after the high-voltage vacuum switch is closed, the control panel monitors the running current of the electric locomotive under the overhead line in real time; when the current is in the operating current range set by the display screen setting unit, the control board continuously controls the high-voltage vacuum switch to be in a closed state; when the current is within the time range set by the display screen setting unit and is continuously smaller than the running current value set by the display screen setting unit, the control board can judge that the electric locomotive stops running, and the control board can immediately disconnect the high-voltage vacuum switch and cut off the high-voltage direct-current power supply on the overhead line;
3) the running signal of the electric locomotive identified by the control panel is in a dotting mode or a safety mode, and mode selection can be selectively set in a display screen setting unit; the dotting signal is the dotting times for the electric locomotive switch to be continuously turned on and off within the time set by the display screen setting unit by the electric locomotive operator, and the more times are set, the more accurate the electric locomotive running signal is, so that the signal safety is better ensured; the safe mode is that on the basis of the dotting mode, dotting current detection is added, and the current value is not in the range of the current value set by the display screen setting unit and is regarded as signal failure; the mode is the most secure.
3. The automatic control technology for the power supply of the direct-current trolley buses as claimed in claim 1, characterized in that: the control panel comprises a control chip, a printed circuit board, electronic components, a state indicator lamp and the like, and the display screen setting unit, the current detection unit and the high-voltage vacuum switch unit are connected to complete the functions of signal detection, high-voltage vacuum switch action and the like; secondly, transmitting a state indicator lamp of the system to 4 LED lamps on a box body of the system through a control panel, and respectively representing a detection signal, a power supply, high-voltage vacuum switch action and system faults of the system; and thirdly, the manual and automatic switching function of the system is transmitted to 1 knob switch on the box body through the control panel, and the system fault resetting function is transmitted to 1 self-resetting button on the box body through the control panel.
4. The automatic control technology for the power supply of the direct-current trolley buses as claimed in claim 1, characterized in that: the control panel has a manual function and an automatic function, the function is realized through a manual knob switch and an automatic knob switch on the box body, when the knob switch is in a manual mode, the high-voltage vacuum switch is directly closed unconditionally, a high-voltage direct-current power supply is continuously connected to an overhead line, and the high-voltage direct-current power supply is not automatically disconnected any more; when the knob switch is in an automatic mode, the control panel participates in the operation of the whole set of system.
5. The automatic control technology for the power supply of the direct-current trolley buses as claimed in claim 1, characterized in that: the control panel has higher safety protection for human body; when the trolley locomotive does not run, the overhead line is not connected with the high-voltage direct-current power supply, and when the trolley locomotive is touched by a person, the control panel cannot be regarded as an electric locomotive running signal, so that the control panel is not dangerous, and the production safety level is greatly improved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110264184.2A CN113085554B (en) | 2021-03-11 | 2021-03-11 | Automatic control method for power supply of direct-current trolley tramcar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110264184.2A CN113085554B (en) | 2021-03-11 | 2021-03-11 | Automatic control method for power supply of direct-current trolley tramcar |
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| Publication Number | Publication Date |
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| CN113085554A true CN113085554A (en) | 2021-07-09 |
| CN113085554B CN113085554B (en) | 2022-06-07 |
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| CN202110264184.2A Expired - Fee Related CN113085554B (en) | 2021-03-11 | 2021-03-11 | Automatic control method for power supply of direct-current trolley tramcar |
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| CN105048601A (en) * | 2015-08-31 | 2015-11-11 | 南车株洲电力机车有限公司 | Power supply management system |
| CN106356960A (en) * | 2016-09-05 | 2017-01-25 | 湘潭电机股份有限公司 | Charging station charging system for super-capacitor vehicle and control method |
| CN109291942A (en) * | 2018-08-03 | 2019-02-01 | 济宁学院 | A kind of method of trolley locomotive auto-power-cutting |
-
2021
- 2021-03-11 CN CN202110264184.2A patent/CN113085554B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008104265A (en) * | 2006-10-18 | 2008-05-01 | Fuji Electric Systems Co Ltd | Control system for permanent-magnet-type-motor-driven rolling stock |
| CN101968638A (en) * | 2010-10-16 | 2011-02-09 | 金培庸 | Automatic power delivering and interrupting device for overhead line of trolley locomotive |
| CN202837945U (en) * | 2012-07-24 | 2013-03-27 | 金培庸 | Apparatus for automatic power interruption and transmission of variable-frequency trolley locomotive circuit |
| CN102975741A (en) * | 2012-12-02 | 2013-03-20 | 安徽恒源煤电股份有限公司 | Car supplementing device for coal mine car jacking operation |
| CN104627029A (en) * | 2015-03-06 | 2015-05-20 | 南京拓控信息科技有限公司 | Vehicle-mounted automatic passing neutral section detector of railway electric locomotive |
| CN105048601A (en) * | 2015-08-31 | 2015-11-11 | 南车株洲电力机车有限公司 | Power supply management system |
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| CN113085554B (en) | 2022-06-07 |
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| CF01 | Termination of patent right due to non-payment of annual fee |