CN204156585U - A kind of train power sources in parallel system - Google Patents
A kind of train power sources in parallel system Download PDFInfo
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- CN204156585U CN204156585U CN201420421279.6U CN201420421279U CN204156585U CN 204156585 U CN204156585 U CN 204156585U CN 201420421279 U CN201420421279 U CN 201420421279U CN 204156585 U CN204156585 U CN 204156585U
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Abstract
The utility model discloses a kind of train power sources in parallel system, comprising: train network, and the power branch more than two-way be connected with train network, the output of power branch parallel with one another after parallel connection point for train load provides power supply.Power branch comprises the power supply be connected with train network, and the storage battery be connected with power supply, and the input of power supply is connected to net pressure side, and the output of power supply is parallel to point in parallel.The utility model can solve existing power supply parallel operation system power little, control the technical problem complicated, reliability is not high, the flexibility, the hardware device that enhance circuit application are few, cost is low, output current closed-loop control is more stable, control precision is higher, provide more powerful, scattered distribution is more flexible.
Description
Technical field
The utility model relates to track traffic technical field of electricity, and especially relating to a kind of multiple stage power sources in parallel that is applied to is the load supplying also train power sources in parallel system of realization to charge in batteries jointly.
Background technology
Along with the rail traffic vehicles such as magnetic suspension train, subway train, motor train unit, high ferro are to mains-powered apparatus scattered distribution, and the lifting of the demand such as heavy load power, also more and more higher requirement is proposed to the power of power supply unit.Meet these and require that just needs multiple stage power supply can carry out parallel operation, to meet the power requirement of load.Such as: the direct current 330V power supply of magnetic suspension train, the direct current 110V power supply etc. of subway train all adopt parallel operation, and require each power supply to respective storage battery carry out charging control., charge to respective storage battery to realize multiple stage power supply, it is also proposed when netting pressure dead electricity, train load is powered jointly by storage battery meanwhile, thus realizes the functions such as the emergent traction of train.
In addition, the update of power supply, it is also proposed higher requirement to electric supply system, such as: scattered distribution, control the requirement of the aspect such as simple, current-sharing precision is high, safe and reliable.At present, in the prior art, be the direct parallel arrangement of direct current with the immediate technical scheme of the utility model patent application.The direct parallel arrangement of direct current is owing to adopting the direct parallel form of simple direct current, so be generally only applicable to two situations in parallel to realize automatic current equalizing, and be unsuitable for the multiple stage power sources in parallel system of more than two, simultaneously, current-sharing is uncontrollable, and precision is not high, reliability is not high.Therefore, the direct parallel technology scheme of the direct current of prior art obviously can not meet the new demand of application.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of train power sources in parallel system, can solve the technical problem that existing power supply parallel operation system power is little, control is complicated, reliability is not high.
In order to realize above-mentioned utility model object, the utility model specifically provides a kind of technic relization scheme of train power sources in parallel system, a kind of train power sources in parallel system, comprise: train network, and the power branch more than two-way be connected with described train network, the output of described power branch parallel with one another after parallel connection point for train load provides power supply.Described power branch comprises the power supply be connected with described train network, and the storage battery be connected with described power supply, and the input of described power supply is connected to net pressure side, and the output of described power supply is parallel to described point in parallel.
Preferably, the output current or the output voltage collection signal that come from the described power supply of more than two-way input to described train network, described train network, to described electric power outputting current more than two-way or average voltage value signal, realizes the current-sharing of described electric power outputting current or all pressures of output voltage.
Preferably, described power branch also comprises isolating diode, the output that described isolating diode is connected to described power supply with described in parallel between.
Preferably, the power supply of every bar power branch provides power energy by isolating diode corresponding with it to described train load; The anode of described isolating diode connects described power supply, and the negative electrode of described isolating diode connects described point in parallel.Described isolating diode charges to the storage battery corresponding to the power supply of this power branch for preventing the power supply of other power branch.
Preferably, described power supply comprises power conversion circuit and control circuit, the voltage transitions of described net pressure side is become the operable voltage of described train load by described power conversion circuit, or the voltage transitions that described storage battery exports is become the operable voltage of described train load.Described power conversion circuit is connected with described isolating diode, and described control circuit is connected between described train network and power conversion circuit, for the information exchange between described train network and power supply.Described control circuit gathers the output current signal of described power conversion circuit or output voltage signal, and to described power conversion circuit output current or voltage close loop control signal.Described control circuit is connected with described storage battery, exports charging control signal to described storage battery.
Preferably, described control circuit exports charging control signal to each self-corresponding storage battery, and when described train load strengthens suddenly, described storage battery is by described power supply, and described isolating diode exports instantaneous energy to described train load.
Preferably, when the net positive pressure of described net pressure side is normal, described power initiation work, described power supply is to described train load output voltage and electric current, and described power supply exports charging current to described storage battery.
Preferably, when the net pressure decompression of described net pressure side, described power supply quits work, and described storage battery carries out parallel operation by described power supply, isolating diode to described train load successively.
Preferably, the net pressure of described net pressure side is for train is by line voltage or the 3rd rail voltage.
Preferably, described train load is the load of any one train comprising illuminating lamp, air-conditioning system, train controller, train traction inverter.
By implementing the train power sources in parallel system that above-mentioned the utility model provides, there is following technique effect:
(1) the utility model overcomes the direct parallel system of existing direct current and is generally only applicable to two situations in parallel to realize automatic current equalizing, and be unsuitable for the multiple stage power sources in parallel system of more than two, current-sharing is uncontrollable, the technical problem that precision is not high, reliability is not high;
(2) the utility model enhance circuit application flexibility, hardware device is few, cost is low, output current closed-loop control is more stable, control precision is higher, provide more powerful, scattered distribution is more flexible.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the system architecture diagram of a kind of embodiment of the utility model train power sources in parallel system;
Fig. 2 is the structure composition frame chart of a kind of embodiment power supply of the utility model train power sources in parallel system;
In figure: 1-train network, 2-net pressure side, 3-power supply, 31-power conversion circuit, 32-control circuit, 4-storage battery, 5-isolating diode.
Embodiment
For making the object of the utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, clear, complete description is carried out to the technical scheme in the utility model embodiment.Obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figures 1 and 2, give the specific embodiment of the utility model train power sources in parallel system, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1, a kind of specific embodiment of train power sources in parallel system, comprise: train network 1, and the power branch more than two-way be connected with train network 1, the output of power branch is parallel with one another is jointly embodied as train load after parallel connection point provides power supply.Power branch comprises the power supply 3 be connected with train network 1, and the storage battery 4 be connected with power supply 3, and the input of power supply 3 is connected to net pressure side 2, and the output of power supply 3 is parallel to point in parallel.In the specific embodiment shown in accompanying drawing 1, train power sources in parallel system comprises power branch 1 ~ power branch n n power branch altogether.Therefore, train power sources in parallel system comprises the power supply 3 of 1 ~ n platform and the storage battery 4 of 1 ~ n.Train network 1 can carry out output current or the output voltage signal collection of power supply 3, and calculates the output current of the power supply 3 collected or the output voltage signal value that is averaged.The output current or the output voltage collection signal that come from the power supply 3 of more than two-way input to train network 1, and train network 1, to power supply 3 output current more than two-way or average voltage value signal, realizes the current-sharing of power supply 3 output current or all pressures of output voltage.The train power sources in parallel system that the utility model specific embodiment describes has the features such as output power is large, layout simple, control simply, current-sharing precision is high, safe and reliable.
As the utility model one preferably specific embodiment, power branch also comprises the isolating diode 5 of 1 ~ n further, the output that isolating diode 5 is connected to power supply 3 with in parallel between.The power supply 3 of every bar power branch provides power energy by isolating diode 5 corresponding with it to train load.The anode of isolating diode 5 connects power supply 3, and the negative electrode of isolating diode 5 connects point in parallel.Every platform power supply 3 through corresponding isolating diode 5 for train load provides power energy.Isolating diode 5 has the function of reverse cut-off, anti-current flowing backwards; for preventing the power supply 3 of other power branch, the storage battery 4 corresponding to the power supply 3 of this power branch is charged; thus protect this storage battery 4 not to be damaged, realize the single controllable intelligent management that storage battery 4 charges.
As shown in Figure 2, every platform power supply 3 independently realizes power conversion and from functions such as master controls, be an independently functional unit, power supply 3 comprises power conversion circuit 31 and control circuit 32 further.Power conversion circuit 31 is for realizing power conversion, the voltage transitions of net pressure side 2 is become the operable voltage of train load, and output current is provided, for train load, storage battery 4 provide power energy, or the voltage transitions that storage battery 4 exports is become the operable voltage of train load.Control circuit 32, for realizing from master control, carries out Charge Management and train network 1 to storage battery 4 and carries out information exchange, carries out closed-loop control to carrying out the output voltage of power conversion, output current, storage battery 4 charging current, power supply current-sharing/all press etc. through power conversion circuit 31.Power conversion circuit 31 is connected with isolating diode 5.Control circuit 32 is connected between train network 1 and power conversion circuit 31, for the information exchange between train network 1 and power supply 3.Output current signal or the output voltage signal of the power conversion circuit 31 of control circuit 32 pairs of power supplys 3 gather, and control circuit 32 is to power conversion circuit 31 output current or voltage close loop control signal.Control circuit 32 is connected with storage battery 4, exports charging control signal to storage battery 4.
As the utility model one preferably specific embodiment, when the net positive pressure of net pressure side 2 is normal, train power sources in parallel system possesses intelligent charging function; When the net pressure decompression of net pressure side 2, train power sources in parallel system possesses emergent parallel operation function.When the net positive pressure of net pressure side 2 is normal, power supply 3 starts work, and power supply 3 is to train load output voltage and electric current, and power supply 3 exports charging current to storage battery 4.When net pressure side 2 net pressure decompression, power supply 3 cisco unity malfunction and quit work time, storage battery 4 carries out parallel operation by power supply 3, isolating diode 5 pairs of train load successively, provides emergency power supply to train load, and can realize the emergent traction of train.
As a kind of better specific embodiment of the utility model, control circuit 32 exports charging control signal to each self-corresponding storage battery 4, and when train load strengthens suddenly, storage battery 4 is by power supply 3, and isolating diode 5 provides instantaneous energy to train load.
As the typical specific embodiment of the utility model one, train network 1 mainly realizes and the communication function of power supply 3 and the output current/voltage sample of each power supply 3, the data that reception power supply 3 sends and fault message, and information is sent to drivers' cab display.Simultaneously, train network 1 gathers the current/voltage of each power supply 3, and carries out mean value calculation, this mean value is sent to each power supply 3, each power supply 3 carries out the closed-loop control of output current/voltage with this mean value, reach the current-sharing of power supply 3 output current/all press.The net of net pressure side 2 is pressed as train is by line voltage or the 3rd rail voltage, as train, and the energy source that power supply runs, refer generally to higher voltage, as the input voltage of power supply 3, provide energy for power supply 3 carries out power conversion.Train load is the load of any one train comprising illuminating lamp, air-conditioning system, train controller, train traction inverter, as: the suspension controller of magnetic suspension train, the traction invertor etc. of subway train, for realizing the normal traction of train or emergent function of drawing.
The specific embodiment that the utility model provides, its basic functional principle is as follows:
After the net positive pressure of net pressure side 2 is normal, each power supply 3 starts to start work, and each power supply 3 independently carries out output voltage, electric current, the closed-loop control of storage battery 4 charging current.Meanwhile, train network 1 gathers the output current/voltage of each power supply 3, and calculating mean value, then this mean value is sent to each power supply 3.Each power supply 3 carries out closed-loop control with this current/voltage mean value to output current/voltage, and the current-sharing or the output voltage that reach each power supply 3 output current are all pressed.
After the net pressure decompression of net pressure side 2, each power supply 3 quits work, each power supply 3 can not again for train load provides power energy, now each storage battery 4 connects through each power supply 3 inside, carries out parallel operation through isolating diode 5 to train load again, realizes the functions such as train illumination, control, emergent traction.
In above-mentioned specific embodiment, the electric current that train network 1 gathers power supply 3 can have been come by the control circuit 32 of each power supply 3.Train network 1 can be adopted to replace output current average value signal to power supply 3 output voltage average value signal, average voltage also can be adopted to replace average current closed-loop control to electric power output voltage closed-loop control.
By implementing the train power sources in parallel system that the utility model specific embodiment describes, following technique effect can be reached:
(1) technical scheme that the utility model specific embodiment describes overcomes the direct parallel system of existing direct current and is generally only applicable to two situations in parallel to realize automatic current equalizing, and be unsuitable for the multiple stage power sources in parallel system of more than two, current-sharing is uncontrollable, the technical problem that precision is not high, reliability is not high;
(2) technical scheme that the utility model specific embodiment describes is integrated with train network, train load and net pressure side, and 1 ~ n power supply, storage battery, isolating diode, the flexibility, the hardware device that enhance circuit application are few, cost is low, output current closed-loop control is more stable, control precision is higher, provide more powerful, scattered distribution is more flexible.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
The above is only preferred embodiment of the present utility model, not does any pro forma restriction to the utility model.Although the utility model discloses as above with preferred embodiment, but and be not used to limit the utility model.Any those of ordinary skill in the art, when not departing from Spirit Essence of the present utility model and technical scheme, the Method and Technology content of above-mentioned announcement all can be utilized to make many possible variations and modification to technical solutions of the utility model, or be revised as the Equivalent embodiments of equivalent variations.Therefore; every content not departing from technical solutions of the utility model; according to technical spirit of the present utility model to any simple modification made for any of the above embodiments, equivalent replacement, equivalence change and modification, all still belong in the scope of technical solutions of the utility model protection.
Claims (10)
1. a train power sources in parallel system, is characterized in that, comprising: train network (1), and the power branch more than two-way be connected with described train network (1), the output of described power branch parallel with one another after parallel connection point for train load provides power supply; Described power branch comprises the power supply (3) be connected with described train network (1), and the storage battery (4) to be connected with described power supply (3), the input of described power supply (3) is connected to net pressure side (2), and the output of described power supply (3) is parallel to described point in parallel.
2. train power sources in parallel system according to claim 1, it is characterized in that: the output current or the output voltage collection signal that come from the described power supply (3) of more than two-way input to described train network (1), described train network (1), to described power supply (3) output current more than two-way or average voltage value signal, realizes the current-sharing of described power supply (3) output current or all pressures of output voltage.
3. train power sources in parallel system according to claim 1 and 2, is characterized in that: described power branch also comprises isolating diode (5), the output that described isolating diode (5) is connected to described power supply (3) with described in parallel between.
4. train power sources in parallel system according to claim 3, is characterized in that: the power supply (3) of every bar power branch provides power energy by isolating diode (5) corresponding with it to described train load; The anode of described isolating diode (5) connects described power supply (3), the negative electrode of described isolating diode (5) connects described point in parallel, and described isolating diode (5) charges to the storage battery (4) corresponding to the power supply (3) of this power branch for preventing the power supply of other power branch (3).
5. train power sources in parallel system according to claim 4, it is characterized in that: described power supply (3) comprises power conversion circuit (31) and control circuit (32), the voltage transitions of described net pressure side (2) is become the operable voltage of described train load by described power conversion circuit (31), or the voltage transitions that described storage battery (4) exports is become the operable voltage of described train load; Described power conversion circuit (31) is connected with described isolating diode (5), described control circuit (32) is connected between described train network (1) and power conversion circuit (31), for the information exchange between described train network (1) and power supply (3); Described control circuit (32) gathers the output current signal of described power conversion circuit (31) or output voltage signal, and to described power conversion circuit (31) output current or voltage close loop control signal; Described control circuit (32) is connected with described storage battery (4), exports charging control signal to described storage battery (4).
6. train power sources in parallel system according to claim 5, it is characterized in that: described control circuit (32) exports charging control signal to each self-corresponding storage battery (4), when described train load strengthens suddenly, described storage battery (4) is by described power supply (3), and described isolating diode (5) exports instantaneous energy to described train load.
7. according to the train power sources in parallel system in claim 1,2,4,5,6 described in arbitrary claim, it is characterized in that: when the net positive pressure of described net pressure side (2) is normal, described power supply (3) starts work, described power supply (3) is to described train load output voltage and electric current, and described power supply (3) exports charging current to described storage battery (4).
8. train power sources in parallel system according to claim 7, it is characterized in that: when the net pressure decompression of described net pressure side (2), described power supply (3) quits work, and described storage battery (4) carries out parallel operation by described power supply (3), isolating diode (5) to described train load successively.
9. according to the train power sources in parallel system in claim 1,2,4,5,6,8 described in arbitrary claim, it is characterized in that: the net pressure of described net pressure side (2) is for train is by line voltage or the 3rd rail voltage.
10. according to the train power sources in parallel system in claim 1,2,4,5,6,8 described in arbitrary claim, it is characterized in that: described train load is the load of any one train comprising illuminating lamp, air-conditioning system, train controller, train traction inverter.
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| CN201420421279.6U CN204156585U (en) | 2014-07-29 | 2014-07-29 | A kind of train power sources in parallel system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106059032A (en) * | 2015-04-09 | 2016-10-26 | 奥迪股份公司 | Electric transportation tool with rapid charging function |
| CN107612081A (en) * | 2017-09-30 | 2018-01-19 | 联想(北京)有限公司 | A kind of electronic equipment and portable power source |
| CN108718101A (en) * | 2018-06-07 | 2018-10-30 | 福州职业技术学院 | A kind of multi-functional selection power supply system based on power battery pack |
| WO2022002122A1 (en) * | 2020-06-30 | 2022-01-06 | 比亚迪股份有限公司 | Battery current sharing control method and battery current sharing control system |
-
2014
- 2014-07-29 CN CN201420421279.6U patent/CN204156585U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106059032A (en) * | 2015-04-09 | 2016-10-26 | 奥迪股份公司 | Electric transportation tool with rapid charging function |
| CN107612081A (en) * | 2017-09-30 | 2018-01-19 | 联想(北京)有限公司 | A kind of electronic equipment and portable power source |
| CN108718101A (en) * | 2018-06-07 | 2018-10-30 | 福州职业技术学院 | A kind of multi-functional selection power supply system based on power battery pack |
| CN108718101B (en) * | 2018-06-07 | 2021-09-03 | 福州职业技术学院 | Multifunctional selective power supply system based on power battery pack |
| WO2022002122A1 (en) * | 2020-06-30 | 2022-01-06 | 比亚迪股份有限公司 | Battery current sharing control method and battery current sharing control system |
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Address after: The age of 412001 in Hunan Province, Zhuzhou Shifeng District Road No. 169 Patentee after: ZHUZHOU CRRC TIMES ELECTRIC Co.,Ltd. Address before: The age of 412001 in Hunan Province, Zhuzhou Shifeng District Road No. 169 Patentee before: ZHUZH CSR TIMES ELECTRIC Co.,Ltd. |