CN217455694U - Tramcar power supply system and tramcar - Google Patents
Tramcar power supply system and tramcar Download PDFInfo
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- CN217455694U CN217455694U CN202221184543.XU CN202221184543U CN217455694U CN 217455694 U CN217455694 U CN 217455694U CN 202221184543 U CN202221184543 U CN 202221184543U CN 217455694 U CN217455694 U CN 217455694U
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Abstract
The utility model discloses a tram power supply system and tram, wherein tram power supply system includes: the vehicle-mounted power supply device is arranged on the tramcar and used for supplying power to the tramcar in the non-electricity area; the contact net power supply device is arranged in the maintenance area and used for supplying power to the tramcar in the maintenance area; the ground power supply device is arranged in the road temporary stop area and used for supplying power to the vehicle-mounted power supply device and supplying power to the tramcar in the temporary stop area; the system can effectively solve the problem that urban landscapes are seriously damaged in the urban tramcars, and can solve the problem that the tramcars have power feed caused by the exhaustion of stored energy of the vehicles when accidents or traffic jam occur in the temporary parking area. The utility model discloses but wide application in tram technical field.
Description
Technical Field
The utility model belongs to the technical field of the tram technique and specifically relates to a tram power supply system and tram.
Background
In the prior art, a tramcar power supply mode is usually a contact network power supply mode, a vehicle-mounted power supply device power supply mode or a contact network and energy storage hybrid power supply structure. The power supply of the contact net is an original power supply technology, the performance is stable, but an overhead line exists, and particularly the problem that urban landscapes are seriously damaged on a tramcar which runs in an open city exists. The vehicle-mounted power supply device can avoid the damage of an overhead contact network to urban landscapes, but has the problems of large platform parking charging power and high requirement on traction substation power, the energy storage charging current is 1500-2000A, 1.6-1.8 megawatt substations are usually configured, the cost of the substations is high, and no-load loss is huge. Meanwhile, when an accident or a traffic jam occurs at a signal lamp of the intersection, the problem of power feeding caused by the fact that the energy storage of the tramcar is exhausted in the waiting process is solved, and high requirements are put forward on the design of a line platform and the intersection, so that a new tramcar power supply system is needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve one of the technical problems existing in the correlation technique to a certain extent at least.
Therefore, an object of the utility model is to provide a tram power supply system, this tram power supply system can improve the destruction problem of line overhead contact net to city view and when improving crossing signal lamp emergence accident or block up, the problem that the tram waited for in-process vehicle energy storage to exhaust and lead to the feed.
In order to achieve the technical purpose, the embodiment of the present invention adopts a technical solution including:
a tramcar power supply system comprising: the vehicle-mounted power supply device is arranged on the tramcar and used for supplying power to the tramcar in the non-electricity area; the contact net power supply device is arranged in the maintenance area and used for supplying power to the tramcar in the maintenance area; and the ground power supply device is arranged in the road temporary stop area and used for supplying power to the vehicle-mounted power supply device and supplying power to the tramcar in the temporary stop area.
In addition, according to the tram power supply system of the above embodiment of the present invention, the following additional technical features may be further included:
optionally, in an embodiment of the present invention, the road parking area includes a signal light area and a station platform area.
Optionally, in an embodiment of the present invention, the power supply further includes a vehicle-mounted voltage transformation device; one end of the vehicle-mounted voltage transformation device is connected with a bus of the tramcar; the other end of the vehicle-mounted voltage transformation device is connected with the ground power supply device; the vehicle-mounted voltage transformation device is used for adjusting the electric output parameters of the ground power supply device.
Optionally, in an embodiment of the present invention, the number of the ground power supply devices includes one or more.
Optionally, in an embodiment of the present invention, the output electrical parameter of the ground power supply device is a dc voltage of 600V-900V; the input electrical parameter of the vehicle-mounted voltage transformation device is direct current voltage of 600V-900V; the output electrical parameter of the vehicle-mounted voltage transformation device is direct-current voltage of 500V-750V.
Optionally, in an embodiment of the present invention, the input voltage of the vehicle-mounted power supply apparatus is 500V-750V.
Optionally, in an embodiment of the present invention, the ground power supply device includes a collector shoe; the collector shoe comprises one of an upper contact type collector shoe, a lower contact type collector shoe and a side contact type collector shoe.
Furthermore, the utility model provides a tram, through any one of the tram power supply system supply power in the above-mentioned embodiment.
Advantages and benefits of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention:
the embodiment of the utility model provides an in power supply system, be the tram power supply at the no electric area of tram operation through on-vehicle power supply unit, be the tram power supply in the maintenance area of tram through contact net power supply unit, and face the mode that the parking area supplies power and for this three kinds of hybrid power supplies of tram power supply at the road, can effectively improve the problem of seriously destroying city landscape that the city tram exists, can improve simultaneously and face when parking area emergence accident or traffic congestion, the tram has the vehicle energy storage to exhaust and leads to the problem of feed.
Drawings
Fig. 1 is a schematic view of a tramcar power supply system according to the present invention;
fig. 2 is a schematic diagram of a power supply circuit structure of a tramcar power supply system of the present invention.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "distance", "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.
Referring to fig. 1, in an embodiment of the present application, a tramcar power supply system is provided, which may include
The vehicle-mounted power supply device 1, the contact network power supply device 2 and the ground power supply device 3. The vehicle-mounted power supply device 1 can be arranged on a tramcar, and the vehicle-mounted power supply device 1 can supply power to the tramcar in a non-electricity area; the contact net power supply device 2 can be arranged in a maintenance area of the tramcar and can supply power to the tramcar in the maintenance area; the ground power supply device 3 may be disposed in a road temporary stop area, and is configured to supply power to the vehicle-mounted power supply device 1 and supply power to the tramcar in the temporary stop area.
Further, in some embodiments of the present application, the ground power supply device 3 may be disposed in a signal light area or a station area, or may be disposed in both the signal light area and the station area; furthermore, the tramcar power supply system also comprises a vehicle-mounted voltage transformation device; one end of the vehicle-mounted voltage transformation device can be connected with a bus of the tramcar; the other end of the vehicle-mounted voltage transformation device can be connected with a ground power supply device 3; the vehicle-mounted voltage transformation device can adjust the electrical output parameters of the ground power supply device 3, so that the electrical output parameters of the ground power supply device 3 can accord with the input parameter range of the trolley-mounted power supply device 1; furthermore, the number of the ground power supply devices 3 may be one or more, and a plurality of ground power supply devices 3 may be disposed in a platform area or a signal lamp area, or one ground power supply device 3 may be disposed in each platform area or signal lamp area; further, since the input voltage of the electric train is 500V-900V, the output electrical parameter of the ground power supply device 3 may be a dc voltage of 600V-900V; the input electrical parameter of the vehicle-mounted voltage transformation device can be 600V-900V direct current voltage; the output electrical parameter of the vehicle-mounted voltage transformation device can be 500V-750V direct current voltage, the direct current voltage output by the ground power supply device 3 can be used for directly supplying power for the electric car, and the vehicle-mounted power supply device 1 can also be supplied with power through the vehicle-mounted voltage transformation device, so that the electric car can supply power in a non-electricity area conveniently; further, the input voltage of the vehicle-mounted power supply device 1 is 500V-750V; further, the ground power supply device 3 may include a collector shoe, and the collector shoe may include one of an upper contact type collector shoe, a lower contact type collector shoe, and a side contact type collector shoe.
In addition, the application also provides a tramcar, and the tramcar is supplied with power through any one of the tramcar power supply systems described in the above embodiments.
The following explains the utility model discloses a tram power supply system's theory of use:
referring to fig. 2, when the tramcar runs in the vehicle maintenance section, the contact net is used for receiving current, and at the moment, the pantograph is used for receiving current and the wheel steel rail flows back. At the moment, the pantograph contactor KP is closed, the KC is disconnected, and the tramcar auxiliary system and the traction system take electricity from the overhead line system. At the moment, the vehicle-mounted voltage transformation device and the vehicle-mounted power supply system are not connected to the whole vehicle power supply system;
when the tramcar runs on the positive line, a power supply mode combining ground power supply and a vehicle-mounted power supply device is adopted. The station platform and the traffic light intersection of the positive line tramcar are provided with ground power supply charging points, and the rest areas are dead areas. The system voltage of the vehicle-mounted power supply device is DC500-750V, the requirement of the running voltage of a vehicle is met, and the total capacity of the vehicle-mounted power supply device can be calculated according to the length of a non-electric area of a line and the distribution of charging points. In the traction process of the tramcar, electric energy flows to a bus of the tramcar from the vehicle-mounted power supply device so as to supply power to various systems of the tramcar, such as traction, assistance and the like. When the tramcar is in traction operation, the vehicle-mounted voltage transformation device is not started, the diode D5 is cut off in the reverse direction, and electric energy cannot flow to the ground of the dead zone along with the diodes D4 and D5. In the process of braking of the tramcar, the traction system executes feedback electric braking to generate electricity in the reverse direction of the tramcar, and after the voltage DC750-850V exceeds DC850V, the tramcar executes a resistance braking working condition to consume electric energy on a braking resistor. When the vehicle-mounted voltage transformation device detects the voltage of the traction system side and a driver operates the electric brake, the vehicle-mounted voltage transformation device starts to operate. The electric energy generated by the traction system in the reverse direction cannot directly flow back to the tramcar bus due to the reverse cut-off of the diode D2, flows to the vehicle-mounted transformation device through the diode D4, and is transformed and transformed to supply power to the vehicle bus. At this time, because the voltage (DC750-850V) on the traction system side is higher than the voltage of the vehicle-mounted power supply device, the diode D2 is still in a reverse cut-off state, and the feedback energy is charged to the vehicle-mounted power supply device through the tramcar bus.
When the tramcar is braked and parked to a station or a charging point of an intersection signal machine, the vehicle-mounted voltage transformation device detects that the tramcar is parked and starts to run. The electric energy flows to the vehicle-mounted transformation device from the ground power supply system through the collector shoe and the diode D5, is transformed and transformed by the vehicle-mounted transformation device, and then is supplied to a bus of the vehicle, finally is supplied to the auxiliary system of the tramcar, and simultaneously is charged by the vehicle-mounted power supply device, and is stored for subsequent passing through a dead zone, at the moment, the tramcar is in a parking state, and the traction system does not work.
When the tramcar is over-temperature due to continuous over-power traction under special conditions, the path KC of the fault vehicle-mounted power supply device is disconnected, the vehicle-mounted power supply device disconnects the electric energy supply of a traction system and only supplies power for an auxiliary system, and normal operation of air conditioners, ventilation, illumination and other equipment in the tramcar is guaranteed.
To sum up, the utility model has the advantages of it is following:
1. the ground power supply system is arranged on the ground, a positive line overhead contact network and a charging rail are removed, and the influence of the contact network and the charging rail on urban landscapes and the influence of negative stray current on surrounding buildings are avoided.
2. The ground power supply installation section is flexible, can be configured at a tramcar platform and a traffic light intersection, increases the whole main line charging point, reduces the charging power and current, and further reduces the total power (substation cost) of a traction substation and the no-load loss of the substation.
3. The crossing traffic lights are provided with power supply points, so that the vehicle-mounted energy storage feed phenomenon caused by long-time stop of the tramcar due to traffic jam or accidents at the crossing is avoided.
In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the term "switch" is to be interpreted broadly, for example, as a change or a transition; the specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description of the present specification, a description with reference to terms means that a specific structure or feature described in connection with an embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (8)
1. A tramcar power supply system, comprising:
the vehicle-mounted power supply device is arranged on the tramcar and used for supplying power to the tramcar in the non-electricity area;
the contact net power supply device is arranged in the maintenance area and used for supplying power to the tramcar in the maintenance area;
and the ground power supply device is arranged in the road temporary stop area and used for supplying power to the vehicle-mounted power supply device and supplying power to the tramcar in the temporary stop area.
2. The tram power supply system according to claim 1, wherein the road temporary stop area comprises at least one area of a signal light area and a station platform area.
3. The tramcar power supply system according to claim 1, further comprising a vehicle-mounted voltage transformation device; one end of the vehicle-mounted voltage transformation device is connected with a bus of the tramcar; the other end of the vehicle-mounted voltage transformation device is connected with the ground power supply device; the vehicle-mounted voltage transformation device is used for adjusting the electric output parameters of the ground power supply device.
4. The tramcar power supply system according to claim 1, characterised in that the number of ground power supply means comprises one or more.
5. The tramcar power supply system according to claim 3, wherein the output electrical parameter of the ground power supply device is a DC voltage of 600V-900V; the input electrical parameter of the vehicle-mounted voltage transformation device is direct current voltage of 600V-900V; the output electrical parameter of the vehicle-mounted voltage transformation device is direct-current voltage of 500V-750V.
6. The tramcar power supply system according to claim 1, wherein the input voltage of the vehicle-mounted power supply device is 500V-750V.
7. A tramcar power supply system according to claim 4 characterised in that the ground power supply means comprises a collector shoe; the collector shoe comprises one of an upper contact type collector shoe, a lower contact type collector shoe and a side contact type collector shoe.
8. A tramcar, characterized in that it is powered by a tramcar power supply system according to any one of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221184543.XU CN217455694U (en) | 2022-05-17 | 2022-05-17 | Tramcar power supply system and tramcar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221184543.XU CN217455694U (en) | 2022-05-17 | 2022-05-17 | Tramcar power supply system and tramcar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217455694U true CN217455694U (en) | 2022-09-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221184543.XU Active CN217455694U (en) | 2022-05-17 | 2022-05-17 | Tramcar power supply system and tramcar |
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| Country | Link |
|---|---|
| CN (1) | CN217455694U (en) |
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2022
- 2022-05-17 CN CN202221184543.XU patent/CN217455694U/en active Active
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