CN205853892U - The secondary power system of rail vehicle - Google Patents

Abstract

The utility model proposes a kind of for a kind of secondary power system for rail vehicle: an annular power bus (BUS3), described rail vehicle has at least two compartment (Cx), and the load (Lx) in each described compartment is connected on described power bus (BUS3)；At least two accessory power supply (APSx), each accessory power supply (APSx) is positioned at a compartment, and is connected on described power bus (BUS3).

Description

The secondary power system of rail vehicle

Technical field

This utility model relates in general to rail vehicle, particularly relates to the secondary power system used on a kind of rail vehicle.

Background technology

Along with the fast development of Re-search on Urbanization, the ramping of urban population, intercity, urban track traffic is because of its efficiency The factors such as bearing capacity high, passenger is strong and effect on environment is little and progressively become the important vehicles of town dweller.Intercity, Urban track traffic has developed into employing power-actuated rail vehicle, such as inter-city train, subway, subway and light rail Deng.Pantograph (being connected to contact net) or collector shoe that typical power-actuated rail vehicle can be equipped with by self (connect Receive the 3rd power rail) obtain electric energy from outside vehicle.Generally being equipped with two class power-supply systems at track vehicle interior, one is Realizing traction and the traction power source system of braking, it is two for for giving such as heating ventilation air-conditioning system (HVAC), illuminator and low The secondary power system that the jack system etc. that compresses switch is powered.The electric energy obtained from outside vehicle is converted to by the two power-supply system Vehicle interior can form, in order to respectively to system power supplies such as pull-in control system and HVAC illuminations.

In order to provide a safe and comfortable environment for passenger in the compartment of rail vehicle, general require for HVAC, The secondary power system of the power supply such as illuminator is reliable, and can power and have certain redundancy protecting ability continuously.In order to Realize this point, prior art proposes a kind of secondary power system 100 with backup battery, as shown in Figure 1.At Fig. 1 In, the load Lx (x=1～n) in rail vehicle is connected on a power bus BUS1, and such as this power bus BUS1 includes Three supply lines (AC three-phase).In e.g. one compartment of each load install one or several for HVAC blower fan, Lighting etc..In the example in fig 1, an accessory power supply APS1 (APS:Auxiliary Power Supply) is connected to this On power bus BUS1, for powering for each load Lx in rail vehicle.Meanwhile, another standby accessory power supply APS2 is connected on this power bus BUS1 through a switch module SW0.When normally working, switch module SW0 disconnects, such as Fig. 1 Shown in, each load Lx in compartment is powered by APS1.When APS1 breaks down, switch module SW0 turns on so that APS2 is even Receive on power bus and start to provide electric energy for each load.Scheme shown in Fig. 1 is auxiliary by increasing an independent backup Help power supply to ensure the sustainability of power-supply system.Scheme shown in Fig. 1 can also utilize the energy storage devices such as such as capacitor Realize the seamless switching between active and standby accessory power supply.

Fig. 2 schematically illustrates existing another kind of secondary power system 200.As in figure 2 it is shown, on power bus BUS2 There are load Lx, x=1～n same connection.Unlike Fig. 1, employ three accessory power supplys that capacity is relatively small in fig. 2 APSx, x=1～3.These accessory power supplys APSx is connected on power bus parallel to each other, thus forms parallel power supply Topological structure.When normally working, each APSx being connected on power bus BUS2 powers for each load Lx jointly.Each The load capacity that APSx is undertaken is determined by the bearing capacity of each APSx, also by the power supply control strategy decision of each APSx.Example As, if APS₁Breaking down, other APSx (x=2～3) can be still that each load Lx, x=1～n power, whole system System is maintained continuing to run with, and without interrupting, thus realizes fault ride-through and runs.But, because of the number of the APSx of work Being reduced to 2, the bearing capacity of whole system is restricted, and fractional load can not obtain electric energy needed for running at full capacity.This Parallel power supply topological structure is particularly well-suited to the city railway vehicle of some joint compartments marshalling, because each compartment can be pacified Fill a less accessory power supply of capacity.

Utility model content

A purpose of the present utility model is to provide the novel secondary power system used in a kind of rail vehicle, its energy Enough more efficiently for load offer electric energy.Another purpose of the present utility model is to provide use in a kind of rail vehicle Novel secondary power system, its operation that can continue to keep secondary power system after certain section of power bus breaks down.This Another purpose of utility model is to provide the novel secondary power system used in a kind of rail vehicle, and it can use into This relatively low accessory power supply.

According to an aspect of the present utility model, the utility model proposes a kind of accessory power supply system for rail vehicle System, this system includes: an annular power bus, and described rail vehicle has at least two compartment, in each described compartment Load be connected on described power bus；At least two accessory power supply, each accessory power supply is positioned at a compartment, and connects On described power bus.Preferably, described load is that heating ventilation air-conditioning system, illuminator maybe can connect inserting of other electrical equipment Seat.Described rail vehicle is city railway vehicle, such as subway, subway, light rail etc..

In this secondary power system, the load in each accessory power supply and each compartment is all connected to an annular confession In electricity bus.Load in each compartment can at least be powered by two accessory power supplys adjoined therewith.If any one is auxiliary Help power failure, then other are connected to the accessory power supply in annular electric supply bus and jointly bear all loads, and often Individual load can obtain electric energy at nearest accessory power supply.

Preferably, it are furnished with two described accessory power supplys in each compartment.Accessory power supply provisioned in each compartment Number increases, and the bearing capacity of each accessory power supply is minimized, thus selects lower-cost accessory power supply.

It is further preferable that be additionally provided with at least two switch module on described power bus, and described switch module is arranged Become to connect on the power bus made between each two switch module and have an accessory power supply.So, power bus just can be by It is divided into several bus segments, equipped with an accessory power supply on each bus segment.If any one bus segment occurs Fault, then disconnect the switch module at these resistive section two ends, thus other part power bus still can connect into one also The power supply topology of connection formula structure, and continue to run with.

Preferably, described rail vehicle includes that at least one compartment group, each compartment group include three compartments, described three The load in compartment is connected on the power bus of same annular.It is to say, preferably constituted a group also with every three compartments Connect into an annular bus-powered topological structure.It is further preferable that be furnished with two in each compartment in each compartment group Described accessory power supply, each accessory power supply is connected on described power bus.Particularly preferably, secondary power system also includes six Individual switch module, is placed on described power bus, and described switch module is arranged so that the confession between each two switch module Connect in electricity bus and have an accessory power supply, thus described power bus is divided into six bus segments, each described compartment Inside there are two bus segments.The ring bus structure using one group of this three compartments can make the most of ring bus Advantage.

It is further preferable that on two bus segments being connected respectively in described compartment of the load in each described compartment.Change Yan Zhi, the load in a compartment can partly be connected on a bus segment, and another part is connected to another bus district Duan Shang.Such that make certain section break down, in compartment, at least fractional load can work, and this to a certain extent can The such as part such as HVAC system, illuminator is enough kept to run.

Hereafter by the way of the most understandable, accompanying drawings preferred embodiment, above-mentioned characteristic, the skill to switching device Art feature, advantage and implementation thereof are further described.

Accompanying drawing explanation

This utility model is only schematically illustrated and explains by the following drawings, does not limit scope of the present utility model.

Fig. 1 shows a kind of typical topology of secondary power system in existing rail vehicle.

Fig. 2 shows the another kind of topological structure of secondary power system in existing rail vehicle.

Fig. 3 shows the topological structure of the secondary power system according to one embodiment of this utility model.

Fig. 4 shows the topological structure of the secondary power system according to one embodiment of this utility model.

Detailed description of the invention

In order to be more clearly understood from the technical characteristic of utility model, purpose and effect, now comparison accompanying drawing explanation is originally The detailed description of the invention of utility model, the most identical label represents that structure is identical or structure is similar but portion that function is identical Part.

In this article, " schematically " expression " serves as example, example or explanation ", " should not show being described herein as Meaning property " any diagram, embodiment be construed to a kind of preferred or more advantage technical scheme.

For making simplified form, only schematically show the part relevant to this utility model in each figure, they are not Represent its practical structures as product.It addition, for making simplified form readily appreciate, some figure has identical structure or merit The parts of energy, only symbolically depict one of them, or have only marked one of them.

In this article, " one " not only represents " only this ", it is also possible to represent the situation of " more than one ".It addition, Herein, " first ", " second " etc. are only used for differentiation each other, rather than represent their significance level and order etc..

Fig. 3 illustrates the structure of the secondary power system 300 for rail vehicle according to one embodiment of this utility model. In the example in figure 3, rail vehicle the most schematically has 3 joint compartment C1, C2 and C3.In actual applications, rail vehicle Can have 6 joint marshallings common at least two joint compartments, such as subway, subway or light rail or 8 joint marshallings.In the example of Fig. 3, Secondary power system 300 includes: an annular power bus BUS3 and some auxiliary being connected on this power bus BUS3 Power supply APSx.In rail vehicle, load Lx, x=1～3 in 3 joint compartments are also all connected on this power bus BUS3, and from this On power bus BUS3 electric.These load the heating ventilation air-conditioning system in the most each compartment of Lx, illuminators, can connect other The socket of electrical equipment, or other with traction and brake unrelated electrical load.As it is shown on figure 3, the power bus BUS3 of annular is permissible Cover the three joint compartments being concatenated together.Owing to using the bus topolopy of annular, often the load Lx in joint compartment can connect Receive on two sections of power bus.Fig. 3 schematically illustrates 6 accessory power supply APSx (x=1～6), each accessory power supply APSx is positioned at a compartment, is preferably equipped with two accessory power supply APSx and is connected to power bus BUS3 in each compartment On.Alternatively, often joint compartment can also be equipped with 1 accessory power supply APS, the most only provides the APS in Fig. 3₁、APS₄And APS₅。

In secondary power system as shown in Figure 3, the load Lx in each accessory power supply APS and each compartment is all connected to On one annular power bus BUS3.Load (such as L in each compartment₂) can be at least auxiliary by two adjoined therewith Help power supply APS₁And APS₂Power supply.If any one accessory power supply (APS₃) break down, then other are connected to annular electric supply bus All loads born jointly by accessory power supply (APSx, x=1～2 and 4～6) on BUS3, and each load (such as L3) is total Can be from nearest accessory power supply (APS₁And APS₅) place obtains electric energy.If being furnished with two described auxiliary in the most each compartment Power supply, the accessory power supply number provisioned in each compartment increases, and the bearing capacity of each accessory power supply is minimized, thus Can be selected for lower-cost accessory power supply.

Fig. 4 illustrates the structure of the secondary power system 400 for rail vehicle according to one embodiment of this utility model. Parts identical with Fig. 3 in Fig. 4 use identical reference to identify, and its function is the most similar, repeats no more here.With Fig. 3 Difference, in Fig. 4, secondary power system 400 also includes at least two switch module being arranged in annular electric supply bus B US4 SWx, and described switch module SWx be arranged so that on the power bus between each two switch module connect have one auxiliary electricity Source.Show the situation of 6 switch module SWx (x=1～6) in the example in fig. 4.So, power bus BUS4 just can be by It is divided into 6 bus segment Sx (x=1～6), equipped with an accessory power supply APSx on each bus segment Sx.If any one Individual bus segment generation catastrophe failure (phase fault such as occur), then disconnect the switch module SWx at these bus segment two ends, from And fault section isolation is gone out, other part power bus still can connect into the power supply topology of a parallel structure also Continue to run with.For example it is assumed that bus segment S1 breaks down, then switch module SW1 and SW3 disconnects, and other switch modules keep Connect.Load in such three joint compartments the most still can keep power supply.

It is further preferable that in the example in fig. 4, the load in each compartment is divided into Lx1 and Lx2 two parts, each part On of two bus segments that load is connected in compartment.In other words, such as the load L11 in the first compartment C1 can connect Being connected on the first bus segment S1, load L12 is connected on another bus segment S2.Such that make bus segment S1 occur It is isolated after fault, in compartment C1, also has load L12 normally to work.This can keep such as HVAC system to a certain extent The part such as system, illuminator is run.

It is to be understood that, although this specification describes according to each embodiment, but the most each embodiment only comprises one Individual independent technical scheme, this narrating mode of description is only that for clarity sake those skilled in the art should will say Bright book can also form those skilled in the art permissible through appropriately combined as an entirety, the technical scheme in each embodiment Other embodiments understood.

The a series of detailed description of those listed above is only for the concrete of possible embodiments of the present utility model Illustrating, they are also not used to limit protection domain of the present utility model, all without departing from this utility model skill spirit made etc. Effect embodiment or change, as feature combination, split or repeat, within should be included in protection domain of the present utility model.

Claims (9)

1. the secondary power system for rail vehicle, it is characterised in that described secondary power system includes:

One annular power bus (BUS3), described rail vehicle has at least two compartment (Cx), in each described compartment Load (Lx) be connected on described power bus (BUS3)；

At least two accessory power supply (APSx), each accessory power supply (APSx) is positioned at a compartment, and is connected to described power supply In bus (BUS3).

2. secondary power system as claimed in claim 1, it is characterised in that be furnished with two described auxiliary in each described compartment Power supply.

3. secondary power system as claimed in claim 1, it is characterised in that also include:

At least two switch module (SWx), is placed on described power bus (BUS4), and described switch module (SWx) is arranged to The upper connection of the power bus (BUS4) between each two switch module (SWx) is made to have an accessory power supply (APSx).

4. secondary power system as claimed in claim 1, it is characterised in that described rail vehicle includes at least one compartment Group, each compartment group includes three compartments (Cx), and the load in described three compartments is connected to the power bus of same annular (BUS4) on.

5. secondary power system as claimed in claim 4, it is characterised in that join in each compartment in each described compartment group Having two described accessory power supplys (APSx), each accessory power supply is connected on described power bus.

6. secondary power system as claimed in claim 5, it is characterised in that also include:

Six switch modules (SWx), are placed on described power bus (BUS4), and described switch module (SWx) is arranged so that The upper connection of power bus (BUS4) between each two switch module (SWx) has an accessory power supply (APSx), thus by described Power bus is divided into six bus segments (Sx), has two bus segments in each described compartment.

7. secondary power system as claimed in claim 6, it is characterised in that the load (L11, L12) in each described compartment point On two bus segments not being connected in described compartment.

8. secondary power system as claimed in claim 1, it is characterised in that described load is heating ventilation air-conditioning system, illumination system System maybe can connect the socket of other electrical equipment.

9. secondary power system as claimed in claim 1, it is characterised in that described rail vehicle is subway, subway or light rail.