CN213125619U - Vehicle-mounted super capacitor system for urban rail train - Google Patents
Vehicle-mounted super capacitor system for urban rail train Download PDFInfo
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- CN213125619U CN213125619U CN202021992958.0U CN202021992958U CN213125619U CN 213125619 U CN213125619 U CN 213125619U CN 202021992958 U CN202021992958 U CN 202021992958U CN 213125619 U CN213125619 U CN 213125619U
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Abstract
The utility model aims to design a vehicle-mounted super capacitor system for an urban rail train, which consists of a voltage sensor, a power supply control system, a vehicle-mounted super capacitor, a medium-voltage inverter, a brake resistor, a low-voltage inverter, a medium-voltage load, a heat dissipation fan and a low-voltage load; the vehicle-mounted super capacitor is respectively connected with the voltage sensor, the power supply control system, the medium-voltage inverter, the low-voltage inverter and the brake resistor; the voltage sensor is connected with the power supply control system; the medium-voltage inverter is connected with the vehicle-mounted super capacitor and the medium-voltage load; the heat radiation fan is connected with the vehicle-mounted super capacitor and the brake resistor; the low-voltage inverter is connected with the vehicle-mounted super capacitor and the low-voltage load; the power supply control system is composed of a display screen, a controller, a circuit breaker, a rectifying and filtering circuit and a power regulating circuit. The system can select the power supply target of the super capacitor by detecting the stored energy of the super capacitor, so that accidents are prevented better, energy waste is avoided, and the subway operation cost is reduced.
Description
Technical Field
The utility model relates to an on-vehicle super capacitor system for city rail train.
Background
Due to the short distance between subway stations, urban rail trains frequently run on lines and are continuously accelerated and decelerated. When a train is decelerated to enter a station, the braking mode of the train is generally friction braking, so that the kinetic energy of the train is converted into heat energy through friction, and the energy is wasted more and more along with the increase of train numbers of urban rail trains.
Regenerative braking is a braking mode which can convert kinetic energy of an urban rail train into electric energy and generate braking force at the same time. It enables the electrical energy to be fed back into the grid and stored in the super capacitor. Obviously, the mode not only saves energy, but also reduces the pollution to the environment during braking, and becomes an important means for reducing the running energy consumption of the urban rail train.
At present, the related technology can not provide control detection functions for different power supply loads of the super capacitor according to different electric energy storage amounts in the super capacitor. Such as a failure that may result in system damage or a more serious accident. Therefore, the research on the vehicle-mounted super capacitor system for the urban rail train is very practical and has a bright application prospect.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an on-vehicle super capacitor system for city rail train can come its power supply load of automatic control through the electric energy that detects super capacitor deposit. When the electric energy stored in the super capacitor reaches the working threshold of the medium-voltage inverter, supplying power to a medium-voltage load; when the electric energy stored in the super capacitor reaches the working threshold of the low-voltage inverter, the super capacitor supplies power to the low-voltage load; when the reserved electric quantity is over full, the electric discharge can be carried out through the brake resistor. The system can better prevent accidents, avoid energy waste and environmental pollution, reduce subway operating cost and improve economic benefit.
The purpose of the utility model is realized like this: a super capacitor system for an urban rail train consists of a voltage sensor, a power supply control system, a vehicle-mounted super capacitor, a medium-voltage inverter, a brake resistor, a low-voltage inverter, a medium-voltage load, a heat dissipation fan and a low-voltage load; the vehicle-mounted super capacitor is respectively connected with the voltage sensor, the power supply control system, the medium-voltage inverter, the low-voltage inverter and the brake resistor; the voltage sensor is connected with the power supply control system; the medium-voltage inverter is connected with the vehicle-mounted super capacitor and the medium-voltage load; the heat radiation fan is connected with the vehicle-mounted super capacitor and the brake resistor; and the low-voltage inverter is connected with the vehicle-mounted super capacitor and the low-voltage load.
The power supply control system is composed of a display screen, a controller, a circuit breaker, a rectifying and filtering circuit and a power regulating circuit, wherein the controller is respectively connected with the display screen and the circuit breaker; the rectification filter circuit is connected with the controller and the power regulating circuit; the method is used for controlling the vehicle-mounted super capacitor of the urban rail train to select different power supply loads.
Further, when the voltage sensor detects that the stored energy of the vehicle-mounted super capacitor reaches the working threshold of the medium-voltage inverter, the power supply control system controls the vehicle-mounted super capacitor to supply power to the medium-voltage inverter, and the medium-voltage inverter converts the direct-current voltage into medium-voltage three-phase four-wire system alternating current to output and supplies power to a medium-voltage load of the urban rail train. When the voltage sensor detects that the stored energy in the vehicle-mounted super capacitor reaches the working threshold of the low-voltage inverter, the power supply control system controls the vehicle-mounted super capacitor to supply power to the low-voltage inverter, and the low-voltage inverter converts the direct-current voltage into low-voltage output to supply power to the low-voltage load of the urban rail train. When the voltage sensor detects that the stored energy in the vehicle-mounted super capacitor is about to be full, the power supply control system controls the vehicle-mounted super capacitor to discharge to the brake resistor, and the generated heat energy is forcedly ventilated and dissipated into the atmosphere by means of the cooling fan.
And a display screen in the power supply control system can display the voltage value in real time. The controller is used as the core of the power supply control system and is used for controlling the rectifying and filtering circuit and the power regulating circuit, so that the vehicle-mounted super capacitor can be matched with different power supply loads. If the display screen detects that the voltage value is abnormal, the controller cuts off the paths of different power supply loads by controlling the circuit breaker, and controls the vehicle-mounted super capacitor to release all electric quantity of electric energy through the brake resistor, so that accidents are prevented. The rectification filter circuit is used for rectifying alternating current into direct current, and the power regulating circuit is used for adjusting charging power of the vehicle-mounted super capacitor.
Drawings
Fig. 1 is the embodiment of the utility model provides a vehicle-mounted super capacitor system overall structure sketch map for urban rail train.
Fig. 2 is the embodiment of the utility model provides a vehicle-mounted super capacitor system power supply control system schematic diagram for urban rail train.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The embodiment of the utility model provides an each structure all is selected from current structure to the used circuit of power supply control system circuit and system connection all can be realized through general circuit.
Referring to fig. 1, the vehicle-mounted super capacitor system for the urban rail train comprises a voltage sensor (1), a power supply control system (2), a vehicle-mounted super capacitor (3), a medium-voltage inverter (4), a brake resistor (5), a low-voltage inverter (6), a medium-voltage load (7), a heat dissipation fan (8) and a low-voltage load (9); the vehicle-mounted super capacitor (3) is respectively connected with circuits of the voltage sensor (1), the power supply control system (2), the medium-voltage inverter (4), the low-voltage inverter (6) and the brake resistor (5); the voltage sensor (1) is connected with the power supply control system (2); the medium-voltage inverter (4) is connected with the vehicle-mounted super capacitor (3) and the medium-voltage load (7); the heat radiation fan (8) is connected with the vehicle-mounted super capacitor (3) and the brake resistor (5); and the low-voltage inverter (6) is connected with the vehicle-mounted super capacitor (3) and the low-voltage load (9).
Referring to fig. 2, the power supply control system for the vehicle-mounted super capacitor system of the urban rail train comprises a display screen (2-1), a controller (2-2), a circuit breaker (2-3), a rectification filter circuit (2-4) and a power regulating circuit (2-5), wherein the controller (2-2) is respectively connected with the display screen (2-1) and the circuit breaker (2-3); the rectification filter circuit (2-4) is connected with the controller (2-2) and the power regulating circuit (2-5).
Referring to fig. 1, the regenerative braking of the train converts kinetic energy into electric energy to be stored in a vehicle-mounted super capacitor (3), and a voltage sensor (1) detects the electric energy storage condition in the vehicle-mounted super capacitor (3) in real time. When the voltage sensor (1) detects that the stored energy in the vehicle-mounted super capacitor (3) reaches the working threshold of the medium-voltage inverter (4), the power supply control system (2) controls the vehicle-mounted super capacitor (3) to supply power to the medium-voltage inverter (4), the medium-voltage inverter (4) converts direct-current voltage into medium-voltage (alternating current (AC) 380/220V) three-phase four-wire system alternating current to be output, a road AC380V train bus is formed, and the medium-voltage load of the urban rail train is supplied with power in a grid-connected power supply mode. The medium voltage of the AC380V is mainly used for ventilation and convenience sockets of air compressors, air conditioners and traction equipment. When the voltage sensor (1) detects that the stored energy in the vehicle-mounted super capacitor (3) reaches the working threshold of the low-voltage inverter (6), the power supply control system (2) controls the vehicle-mounted super capacitor (3) to supply power to the low-voltage inverter (6), the low-voltage inverter (6) converts direct-current voltage into low voltage (DC 110V) to be output, a DC110V train bus is formed, and power is supplied to low-voltage loads of urban rail trains in a grid-connected power supply mode. Wherein the low voltage of the DC110V is mainly used for lighting systems, passenger information systems, passenger door control systems and storage battery charging. When the voltage sensor (1) detects that the stored energy in the vehicle-mounted super capacitor (3) is about to be full, the power supply control system (2) controls the vehicle-mounted super capacitor (3) to discharge to the brake resistor (5), so that the electric energy of the vehicle-mounted super capacitor is consumed on the brake resistor, and the generated heat energy is forcedly ventilated and dissipated into the atmosphere by means of the cooling fan (8).
Referring to fig. 2, the power supply control system (2) is composed of a display screen (2-1), a controller (2-2), a circuit breaker (2-3), a rectifying and filtering circuit (2-4) and a power regulating circuit (2-5). The display screen (2-1) can display the voltage value detected by the voltage sensor (1) in real time. The controller (2-2) is used as the core of the power supply control system and is used for controlling the rectifying and filtering circuit (2-4) and the power regulating circuit (2-5), so that the vehicle-mounted super capacitor (3) can be matched with different power supply loads. If the display screen (2-1) detects that the voltage value is abnormal, the controller (2-2) cuts off the paths of the medium-voltage and low-voltage power supply loads by controlling the circuit breaker (2-3), and controls the vehicle-mounted super capacitor (3) to release all electric quantity from the electric energy through the brake resistor (5), so that accidents are prevented. The rectifying and filtering circuit (2-4) is used for rectifying alternating current into direct current, and the power regulating circuit (2-5) is used for regulating charging power of the vehicle-mounted super capacitor (3).
The above description is only for the specific embodiment of the present invention, but the technical features of the present invention are not limited thereto, and any person skilled in the art can make changes or modifications within the scope of the present invention.
Claims (4)
1. The utility model provides a on-vehicle super capacitor system for city rail train which characterized in that: the system comprises a voltage sensor (1), a power supply control system (2), a vehicle-mounted super capacitor (3), a medium-voltage inverter (4), a brake resistor (5), a low-voltage inverter (6), a medium-voltage load (7), a heat radiation fan (8) and a low-voltage load (9); the vehicle-mounted super capacitor (3) is respectively connected with circuits of the voltage sensor (1), the power supply control system (2), the medium-voltage inverter (4), the low-voltage inverter (6) and the brake resistor (5); the voltage sensor (1) is connected with the power supply control system (2); the medium-voltage inverter (4) is connected with the vehicle-mounted super capacitor (3) and the medium-voltage load (7); the heat radiation fan (8) is connected with the vehicle-mounted super capacitor (3) and the brake resistor (5); and the low-voltage inverter (6) is connected with the vehicle-mounted super capacitor (3) and the low-voltage load (9).
2. The vehicle-mounted supercapacitor system for the urban rail train according to claim 1, wherein: the power supply control system (2) comprises a display screen (2-1), a controller (2-2), a circuit breaker (2-3), a rectifier filter (2-4) and a power regulator (2-5), wherein the controller (2-2) is respectively connected with the display screen (2-1) and the circuit breaker (2-3); the rectifier filter (2-4) is connected with the controller (2-2) and the power regulator (2-5).
3. The vehicle-mounted supercapacitor system for the urban rail train according to claim 1, wherein: the power supply load of the vehicle-mounted super capacitor (3) can be automatically controlled by detecting the electric energy stored in the vehicle-mounted super capacitor (3) through the voltage sensor (1); when the electric energy stored in the vehicle-mounted super capacitor (3) reaches the working threshold of the medium-voltage inverter (4), power is supplied to a medium-voltage load (7); when the electric energy stored in the vehicle-mounted super capacitor (3) reaches the working threshold of the low-voltage inverter (6), power is supplied to a low-voltage load (9); when the reserved electric quantity is over full, the electric discharge can be carried out through the brake resistor.
4. The vehicle-mounted supercapacitor system for the urban rail train according to claim 1, wherein: the power supply control system (2) and the display screen (2-1) can display the voltage value in real time; the controller (2-2) is used for controlling the rectifier filter (2-4) and the power regulator (2-5) so that the vehicle-mounted super capacitor can be matched with different power supply loads; if the voltage value is detected to be abnormal, the controller (2-2) cuts off the paths of different power supply loads by controlling the circuit breaker (2-3), and controls the vehicle-mounted super capacitor (3) to release all electric quantity from the electric energy through the brake resistor (5), so that accidents are prevented.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021992958.0U CN213125619U (en) | 2020-09-14 | 2020-09-14 | Vehicle-mounted super capacitor system for urban rail train |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021992958.0U CN213125619U (en) | 2020-09-14 | 2020-09-14 | Vehicle-mounted super capacitor system for urban rail train |
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| Publication Number | Publication Date |
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| CN213125619U true CN213125619U (en) | 2021-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021992958.0U Active CN213125619U (en) | 2020-09-14 | 2020-09-14 | Vehicle-mounted super capacitor system for urban rail train |
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