CN113872179A - High-speed magnetic levitation regenerative braking energy storage system, method and device and computer medium - Google Patents
High-speed magnetic levitation regenerative braking energy storage system, method and device and computer medium Download PDFInfo
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
- H02J1/14—Balancing the load in a network
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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
- B60L13/00—Electric propulsion for monorail vehicles, suspension vehicles or rack railways; Magnetic suspension or levitation for vehicles
- B60L13/10—Combination of electric propulsion and magnetic suspension or levitation
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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
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/22—Dynamic electric resistor braking, combined with dynamic electric regenerative braking
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/02—Circuit arrangements for ac mains or ac distribution networks using a single network for simultaneous distribution of power at different frequencies; using a single network for simultaneous distribution of ac power and of dc power
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J5/00—Circuit arrangements for transfer of electric power between ac networks and dc networks
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/50—Charging of capacitors, supercapacitors, ultra-capacitors or double layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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Abstract
The invention discloses a high-speed magnetic levitation regenerative braking energy storage system, which comprises: the system comprises a braking resistor, a super capacitor, a traction load and a power frequency power grid which are shared by a direct current bus; the super capacitor is connected to the direct-current bus through a bidirectional DC/DC converter, the traction load is connected to the direct-current bus through a DC/AC converter, and the power frequency power grid is connected to the direct-current bus through an AC/DC converter. The magnetic suspension train braking energy recovery device can meet the power distribution and current transformation requirements of the magnetic suspension train, can realize train braking energy recovery, and avoids the heat dissipation problem caused by electric energy consumption of the resistor.
Description
Technical Field
The invention relates to the technical field of maglev trains, in particular to a high-speed maglev train regenerative braking energy storage system, a high-speed maglev train regenerative braking energy storage method, a high-speed maglev train regenerative braking energy storage device and a computer readable storage medium.
Background
At present, the existing high-speed magnetic levitation railway engineering in China only has a Shanghai high-speed magnetic levitation demonstration line, a brake resistor is arranged in a traction substation, and electric energy fed back by train braking is consumed through the resistor, so that a large amount of recoverable energy is wasted. Meanwhile, the brake resistor consumes electric energy, the electric energy is dissipated to the environment in the form of heat, a large occupied area and additional ventilation equipment are needed, and the land acquisition of the project is very difficult for developed cities with scarce land resources. The maglev train is used as a fluctuating load with high power and short time, and provides higher requirements for power distribution equipment and a converter system, so that the power distribution and converter requirements of the maglev train are met, the braking energy recovery of the train can be realized, and the problem of heat dissipation caused by electric energy consumption of a resistor is solved urgently at present.
Disclosure of Invention
Aiming at the defects or the improvement requirements of the prior art, the invention provides a high-speed maglev regenerative braking energy storage system, a high-speed maglev train regenerative braking energy storage method, a high-speed maglev train regenerative braking energy storage device and a computer readable storage medium, which can meet the power distribution and current transformation requirements of a maglev train, can realize the recovery of train braking energy and avoid the heat dissipation problem caused by the electric energy consumed by a resistor.
In one aspect, an embodiment of the present invention provides a high-speed magnetic levitation regenerative braking energy storage system, including: the system comprises a braking resistor, a super capacitor, a traction load and a power frequency power grid which are shared by a direct current bus; the super capacitor is connected to the direct-current bus through a bidirectional DC/DC converter, the traction load is connected to the direct-current bus through a DC/AC converter, and the power frequency power grid is connected to the direct-current bus through an AC/DC converter.
In an embodiment of the present invention, the power frequency grid adopts a parallel dual-loop power supply incoming line, two loop power supplies are connected to the traction load after being respectively connected to the corresponding AC/DC converter and the corresponding DC/AC converter in sequence, the DC bus is erected between the AC/DC converter and the DC/AC converter connected to two adjacent loop power supplies, and the super capacitor and the bidirectional DC/DC converter are connected to the DC bus in series.
In one embodiment of the present invention, the high-speed magnetic levitation regenerative braking energy storage system further comprises: and the alternating current bus is erected between two adjacent loop power supplies and the corresponding AC/DC converter and is provided with a section switch.
In one embodiment of the invention, the bidirectional DC/DC converter, the DC/AC converter and the AC/DC converter are field effect transistors or bridge rectifier stacks.
On the other hand, the embodiment of the invention provides a high-speed magnetic levitation regenerative braking energy storage method, which comprises the following steps: judging whether the current maglev train is in a braking parking working condition or a traction departure working condition; when the braking and stopping working condition is judged, controlling the traction load to feed back the electric energy and transmitting the electric energy to the energy storage device for absorption and storage; and when the train is judged to be in a traction departure working condition, controlling the energy storage device to release electric energy and matching with an external power frequency power grid to input the electric energy to drive the magnetic-levitation train.
In one embodiment of the present invention, the high-speed magnetic levitation regenerative braking energy storage method further comprises: when the current maglev train is judged not to be in the braking parking working condition or the traction departure working condition, the electric energy fed back by the traction load is only consumed by the braking resistor.
In an embodiment of the present invention, before the electric energy is fed back by the traction load and transmitted to the energy storage device for absorption and storage, the method further includes: judging whether the current electric energy stored by the energy storage device is smaller than a first preset threshold value, feeding back the electric energy by the traction load when the current electric energy is judged to be smaller than the first preset threshold value, transmitting the electric energy to the energy storage device for absorption and storage, and consuming the electric energy fed back by the traction load only by the braking resistor when the current electric energy is judged to be not smaller than the first preset threshold value; before the magnetic-levitation train is driven by the electric energy released by the energy storage device, the method further comprises the following steps: and judging whether the electric energy currently stored by the energy storage device is larger than a second preset threshold value, if so, releasing the electric energy by the energy storage device to drive the magnetic suspension train, and if not, putting the energy storage device into use.
In an embodiment of the present invention, after the energy storage device starts to absorb and store the electric energy, the method further includes: judging whether the current stored electric energy of the energy storage device is larger than a maximum storage threshold value, if so, performing constant-voltage charging on the energy storage device, and if not, performing constant-current charging on the energy storage device; after the energy storage device releases electric energy and starts to release electric energy, the method further comprises the following steps: and judging whether the current stored electric energy of the energy storage device is smaller than a minimum storage threshold value, if so, quitting the use of the energy storage device, and if not, performing constant-voltage discharge by the energy storage device.
In another aspect, an embodiment of the present invention provides a high-speed magnetic levitation regenerative braking energy storage device, including: the train working condition judging module is used for judging whether the current magnetic suspension train is in a braking parking working condition or a traction train-starting working condition; the electric energy feedback control module is used for controlling the traction load to feed back electric energy and transmitting the electric energy to the energy storage device for absorption and storage when the braking parking working condition is judged; and the electric energy release control module is used for controlling the energy storage device to release electric energy and matching with an external power frequency power grid to input the electric energy to drive the magnetic-levitation train when the train pulling working condition is judged.
In another aspect, an embodiment of the present invention provides a high-speed magnetic levitation regenerative braking energy storage system, including: the energy storage device comprises a memory and one or more processors connected with the memory, wherein the memory stores a computer program, and the processors are used for executing the computer program to realize the high-speed magnetic levitation regenerative braking energy storage method in any one of the above embodiments.
In yet another aspect, an embodiment of the present invention provides a computer-readable storage medium storing computer-executable instructions for performing the method according to any one of the above embodiments.
As can be seen from the above, the above solution contemplated by the present invention may have one or more of the following advantages compared to the prior art:
(1) the super capacitor, the traction load and the power frequency power grid are connected to the direct current bus through the DC/DC converter, the DC/AC converter and the AC/DC converter respectively, when the magnetic-levitation train is in a regenerative braking working condition, energy generated by the traction load is fed back through the DC/AC converter and is stored by the super capacitor, and when the magnetic-levitation train is in the traction working condition, the energy storage system formed by the super capacitor discharges, so that the energy requirement on an external power frequency power grid is reduced, and the energy saving and efficiency improvement of a power supply system are facilitated;
(2) the power frequency power grid adopts parallel double-loop power supply incoming lines, and the super capacitor energy storage device is connected to a direct current bus and then erected between an AC/DC converter and a DC/AC converter which are connected with two adjacent loop power supplies, so that a wiring mode that the super capacitor energy storage device is shared by an uplink subarea and a downlink subarea of a power supply system is provided, and the utilization rate of the energy storage device can be improved;
(3) through the energy distribution strategy of the energy management system, the peak clipping and valley filling functions of the energy storage device are fully exerted, and the capacity requirements of partial equipment such as a main substation and a rectifier are reduced to a certain extent.
Other aspects and features of the present invention will become apparent from the following detailed description, which proceeds with reference to the accompanying drawings. It is to be understood, however, that the drawings are designed solely for purposes of illustration and not as a definition of the limits of the invention. It should be further understood that the drawings are not necessarily drawn to scale and that, unless otherwise indicated, they are merely intended to conceptually illustrate the structures and procedures described herein.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic diagram of energy flow of a high-speed magnetic levitation regenerative braking energy storage system under a braking condition according to an embodiment of the present invention;
fig. 2 is a schematic diagram of energy flow of a high-speed magnetic levitation regenerative braking energy storage system under a traction condition according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a high-speed magnetic levitation regenerative braking energy storage system according to an embodiment of the present invention;
fig. 4 is a flowchart of a high-speed magnetic levitation regenerative braking energy storage method according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a high-speed magnetic levitation regenerative braking energy storage device according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a high-speed magnetic levitation regenerative braking energy storage system according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a computer-readable storage medium according to an embodiment of the present invention.
Description of the reference numerals
11: a direct current bus; 12: brake resistance, 13: a super capacitor; 14: traction load, 15: a power frequency grid; 16: a bidirectional DC/DC converter; 17: a DC/AC converter; 18: an AC/DC converter; 19: an alternating current bus;
S21-S23: a step of a high-speed magnetic levitation regenerative braking energy storage method;
30: a high-speed magnetic levitation regenerative braking energy storage device; 301: a train working condition judging module; 302: an electric energy feedback control module; 303: an electric energy release control module;
40: a high-speed magnetic levitation regenerative braking energy storage system; 41: a processor; 42: a memory;
50: a computer readable storage medium.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The invention will be described in connection with embodiments with reference to the drawings.
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments should fall into the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the invention described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the method is simple. The terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be noted that the division of the embodiments of the present invention is only for convenience of description and should not be construed as a limitation, and features of various embodiments may be combined and referred to each other without contradiction.
[ first embodiment ] A method for manufacturing a semiconductor device
As shown in fig. 1 and 2, a first embodiment of the present invention provides a high-speed magnetic levitation regenerative braking energy storage system, for example, comprising: the system comprises a brake resistor 12, a super capacitor 13, a traction load 14 and a power grid 15 which share a direct current bus 11. The brake resistor 12 is directly connected in series to the DC bus 11, the super capacitor 13 is connected to the DC bus 11 through the bidirectional DC/DC converter 16, the traction load 14 is connected to the DC bus 11 through the DC/AC converter 17, and the utility grid 15 is connected to the DC bus 11 through the AC/DC converter 18, for example.
Specifically, fig. 1 is a schematic diagram of energy flow of a high-speed magnetic levitation regenerative braking energy storage system under a braking condition, when a traction load 14 brakes, an inertia cutting magnetic induction line is used for generating an induced current, the generated induced current is converted into a rated direct current through a DC/AC converter 17, and the rated direct current is transmitted by a direct current bus 11. The electric energy transmitted by the direct current bus can be transformed by the bidirectional DC/DC converter 16 and then stored in the energy storage device formed by the super capacitor 13. Part of the electric energy that cannot be stored by the supercapacitor 13 can be consumed by the brake resistor 12.
Fig. 2 is a schematic diagram of energy flow when the high-speed magnetic levitation regenerative braking energy storage system is in a traction working condition, when a traction load 14 needs to input electric energy for traction, at this time, the train is in an acceleration process, and the whole power supply system needs to output large power, for example, through cooperative distribution of the power frequency grid 15 and the super capacitor 13. The alternating current output by the power frequency grid 15 is converted into direct current through an AC/DC converter 18 and then input into the direct current bus 11, and then is converted into partial alternating current required by the traction load 14 through a DC/AC converter 17. Meanwhile, the super capacitor 13 outputs direct current electric energy into the direct current bus 11 through the bidirectional DC/DC converter 16, and also converts the direct current electric energy into alternating current electric drive traction load 14 through the DC/AC converter 17.
Therefore, by arranging the regenerative braking energy management system based on the super-capacitor device and the braking resistor, the super-capacitor is reasonably used during train traction/braking, the energy saving and efficiency improvement of the power supply system are facilitated, the peak clipping and valley filling functions of the super-capacitor energy storage device are fully exerted through the energy distribution strategy of the energy management system, and the capacity requirement of each conversion device of the traction system can be reduced to a certain extent.
In one embodiment, as shown in fig. 3, the power grid 15 is, for example, a parallel dual-loop power supply incoming line, and the two power grid power supplies are respectively connected to the corresponding AC/DC converter 18 and DC/AC converter 17 in sequence and then connected to the traction load 14. The direct current bus 11 is erected between an AC/DC converter 18 and a DC/AC converter 17 which are connected with two adjacent power frequency grid power supplies, and a super capacitor energy storage device formed by the super capacitor 13 and the bidirectional DC/DC converter 16 is connected to the direct current bus 11 in a series connection mode. Therefore, the utilization rate of the energy storage device can be further improved by providing a wiring mode that the uplink and downlink partitions of the electric system share the super-capacitor energy storage device.
Further, the high-speed magnetic levitation regenerative braking energy storage system for example further comprises: and the alternating current bus 19 is erected between the two adjacent power frequency grid power supplies and the corresponding AC/DC converter 18 and is provided with a section switch, and the number of the super capacitor energy storage devices connected into the system can be flexibly selected through section control of the section switch.
In summary, in the high-speed maglev regenerative braking energy storage system provided by the embodiment of the invention, the super capacitor, the traction load and the power frequency power grid are respectively connected to the direct current bus through the DC/DC converter, the DC/AC converter and the AC/DC converter, when the maglev train is in the regenerative braking working condition, the energy generated by the traction load is fed back through the DC/AC converter and stored by the super capacitor, and when the maglev train is in the traction working condition, the energy storage system formed by the super capacitor discharges, so that the energy requirement on the external power frequency power grid is reduced, and the energy saving and efficiency improvement of the power supply system are facilitated; the power frequency power grid adopts parallel double-loop power supply incoming lines, and the super capacitor energy storage device is connected to a direct current bus and then erected between an AC/DC converter and a DC/AC converter which are connected with two adjacent loop power supplies, so that a wiring mode that the super capacitor energy storage device is shared by an uplink subarea and a downlink subarea of a power supply system is provided, and the utilization rate of the energy storage device can be improved; through the energy distribution strategy of the energy management system, the peak clipping and valley filling functions of the energy storage device are fully exerted, and the capacity requirements of partial equipment such as a main substation and a rectifier are reduced to a certain extent.
[ second embodiment ]
As shown in fig. 4, a second embodiment of the present invention provides a high-speed magnetic levitation regenerative braking energy storage method, which includes the following steps: step S21, judging whether the current maglev train is in a braking parking working condition or a traction departure working condition; step S22, when the braking and stopping condition is judged, the electric energy is fed back by the traction load and transmitted to the energy storage device to be absorbed and stored; and step S23, when the train is judged to be in a traction departure working condition, the energy storage device releases electric energy and the electric energy is matched with an external power frequency power grid to input electric energy so as to drive the magnetic-levitation train.
The high-speed magnetic levitation regenerative braking energy storage method proposed in this embodiment is implemented by, for example, a control system of the magnetic levitation train itself or software of an upper computer, such as a personal computer, a handheld device, a portable device, a tablet device, a multiprocessor system, a microprocessor-based system, an editable consumer electronics device, a network PC, a minicomputer, a mainframe computer, or a distributed computing environment including any of the above systems or devices.
Further, in combination with fig. 5, the high-speed magnetic levitation regenerative braking energy storage method further includes, for example: when the current maglev train is judged not to be in the braking parking working condition or the traction departure working condition, the electric energy fed back by the traction load is only consumed by the braking resistor.
Further, before the electric energy is fed back by the traction load and transmitted to the energy storage device for absorption and storage, for example, the method further comprises the following steps: and judging whether the current electric energy stored by the energy storage device is smaller than a first preset threshold value, if so, feeding back the electric energy by the traction load and transmitting the electric energy to the energy storage device for absorption and storage, and if not, consuming the electric energy fed back by the traction load only by the braking resistor. Before the magnetic suspension train is driven by the electric energy released by the energy storage device, for example, the method further comprises the following steps: and judging whether the electric energy currently stored by the energy storage device is larger than a second preset threshold value, if so, releasing the electric energy by the energy storage device to drive the magnetic suspension train, and if not, putting the energy storage device into use.
Further, after the energy storage device starts to absorb and store the electric energy, for example, the method further includes: and judging whether the current stored electric energy of the energy storage device is larger than a maximum storage threshold value, if so, performing constant-voltage charging on the energy storage device, and if not, performing constant-current charging on the energy storage device. After the energy storage device releases electric energy and starts releasing electric energy, for example, the method further comprises the following steps: and judging whether the current stored electric energy of the energy storage device is smaller than a minimum storage threshold value, if so, quitting the use of the energy storage device, and if not, performing constant-voltage discharge by the energy storage device.
The high-speed magnetic levitation regenerative braking energy storage method disclosed by the second embodiment of the invention is suitable for the high-speed magnetic levitation regenerative braking energy storage system described in the first embodiment, and the specific architecture and functions of the high-speed magnetic levitation regenerative braking energy storage system are as described in the first embodiment, so detailed description is omitted here, and the beneficial effects of the embodiment are the same as those of the first embodiment.
[ third embodiment ]
As shown in fig. 5, a third embodiment of the present invention proposes an apparatus 30, for example comprising: a train working condition judging module 301, an electric energy feedback control module 302 and an electric energy release control module 303.
The train condition judgment module 301 is used for judging whether the current maglev train is in a braking parking condition or a traction departure condition. The electric energy feedback control module 302 is used for controlling the traction load to feed back the electric energy and transmitting the electric energy to the energy storage device for absorption and storage when the braking parking condition is judged. The electric energy release control module 303 is configured to control the energy storage device to release electric energy and input the electric energy in cooperation with an external power frequency power grid to drive the maglev train when the train pulling condition is determined.
The high-speed magnetic levitation regenerative braking energy storage method implemented by the device 30 disclosed in the third embodiment of the present invention is as described in the second embodiment, and therefore, will not be described in detail herein. Optionally, each module and the other operations or functions in the third embodiment are respectively for implementing the method described in the second embodiment, and the beneficial effects of this embodiment are the same as those of the second embodiment, and for brevity, are not described herein again.
[ fourth example ] A
As shown in fig. 6, a high-speed magnetic levitation regenerative braking energy storage system 40 according to a fourth embodiment of the present invention includes: a memory 42 and one or more processors 41 coupled to the memory 42. The memory 42 stores a computer program, and the processor 41 is used for executing the computer program to implement the high-speed magnetic levitation regenerative braking energy storage method according to the second embodiment. For the specific high-speed magnetic levitation regenerative braking energy storage method, reference may be made to the method described in the second embodiment, which is not described herein for brevity, and the beneficial effects of the high-speed magnetic levitation regenerative braking energy storage system 40 provided in this embodiment are the same as the beneficial effects of the high-speed magnetic levitation regenerative braking energy storage method provided in the first embodiment.
[ fourth example ] A
As shown in fig. 7, a fourth embodiment of the present invention provides a computer-readable storage medium 50, where the computer-readable storage medium 50 is a non-volatile memory and stores computer-readable instructions, and when the computer-readable instructions are executed by one or more processors, for example, the one or more processors are caused to execute the method for storing energy in magnetic levitation regenerative braking at high speed according to the foregoing second embodiment. For the sake of brevity, details are not repeated herein, and the beneficial effect of the computer-readable storage medium 50 provided in this embodiment is the same as that of the method for storing energy by high-speed magnetic levitation regenerative braking provided in the second embodiment.
In addition, it should be understood that the foregoing embodiments are merely exemplary illustrations of the present invention, and the technical solutions of the embodiments can be arbitrarily combined and collocated without conflict between technical features and structural contradictions, which do not violate the purpose of the present invention.
In the embodiments provided in the present invention, it should be understood that the disclosed system, apparatus and/or method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units/modules is only one logical division, and there may be other divisions in actual implementation, for example, multiple units or modules may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units/modules described as separate parts may or may not be physically separate, and parts displayed as units/modules may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the units/modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
In addition, each functional unit/module in the embodiments of the present invention may be integrated into one processing unit/module, or each unit/module may exist alone physically, or two or more units/modules may be integrated into one unit/module. The integrated units/modules may be implemented in the form of hardware, or may be implemented in the form of hardware plus software functional units/modules.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A high speed magnetic levitation regenerative braking energy storage system, comprising: the system comprises a braking resistor, a super capacitor, a traction load and a power frequency power grid which are shared by a direct current bus; the super capacitor is connected to the direct-current bus through a bidirectional DC/DC converter, the traction load is connected to the direct-current bus through a DC/AC converter, and the power frequency power grid is connected to the direct-current bus through an AC/DC converter.
2. The high-speed magnetic levitation regenerative braking energy storage system according to claim 1, wherein the power frequency grid adopts a parallel double-loop power supply incoming line, the two loop power supplies are connected with the corresponding AC/DC converter and the DC/AC converter in sequence and then connected to the traction load, the DC bus is erected between the AC/DC converter and the DC/AC converter connected to the two adjacent loop power supplies, and the super capacitor and the bidirectional DC/DC converter are connected in series to the DC bus.
3. The high speed magnetic levitation regenerative braking energy storage system of claim 2, further comprising: and the alternating current bus is erected between two adjacent loop power supplies and the corresponding AC/DC converter and is provided with a section switch.
4. A high-speed magnetic levitation regenerative braking energy storage method is characterized by comprising the following steps:
judging whether the current maglev train is in a braking parking working condition or a traction departure working condition;
when the braking and stopping working condition is judged, controlling the traction load to feed back the electric energy and transmitting the electric energy to the energy storage device for absorption and storage;
when the train is judged to be in a traction departure working condition, controlling the energy storage device to release electric energy and inputting the electric energy by matching with an external power frequency power grid so as to drive the magnetic-levitation train;
the high-speed magnetic levitation regenerative braking energy storage method is suitable for the high-speed magnetic levitation regenerative braking energy storage system of any one of claims 1 to 3.
5. The high-speed magnetic levitation regenerative braking energy storage method according to claim 4, further comprising: when the current maglev train is judged not to be in the braking parking working condition or the traction departure working condition, the electric energy fed back by the traction load is only consumed by the braking resistor.
6. The method of claim 5, further comprising, before the step of feeding back the electric energy from the traction load and transferring the electric energy to the energy storage device for absorption and storage:
judging whether the current electric energy stored by the energy storage device is smaller than a first preset threshold value, feeding back the electric energy by the traction load when the current electric energy is judged to be smaller than the first preset threshold value, transmitting the electric energy to the energy storage device for absorption and storage, and consuming the electric energy fed back by the traction load only by the braking resistor when the current electric energy is judged to be not smaller than the first preset threshold value;
before the magnetic-levitation train is driven by the electric energy released by the energy storage device, the method further comprises the following steps: and judging whether the electric energy currently stored by the energy storage device is larger than a second preset threshold value, if so, releasing the electric energy by the energy storage device to drive the magnetic suspension train, and if not, putting the energy storage device into use.
7. The high-speed magnetic levitation regenerative braking energy storage method according to claim 4, further comprising after the energy storage device starts to absorb and store electric energy: judging whether the current stored electric energy of the energy storage device is larger than a maximum storage threshold value, if so, performing constant-voltage charging on the energy storage device, and if not, performing constant-current charging on the energy storage device;
after the energy storage device releases electric energy and starts to release electric energy, the method further comprises the following steps: and judging whether the current stored electric energy of the energy storage device is smaller than a minimum storage threshold value, if so, quitting the use of the energy storage device, and if not, performing constant-voltage discharge by the energy storage device.
8. A high-speed magnetic levitation regenerative braking energy storage device is characterized by comprising:
the train working condition judging module is used for judging whether the current magnetic suspension train is in a braking parking working condition or a traction train-starting working condition;
the electric energy feedback control module is used for controlling the traction load to feed back electric energy and transmitting the electric energy to the energy storage device for absorption and storage when the braking parking working condition is judged;
and the electric energy release control module is used for controlling the energy storage device to release electric energy and matching with an external power frequency power grid to input the electric energy to drive the magnetic-levitation train when the train pulling working condition is judged.
9. A high speed magnetic levitation regenerative braking energy storage system, comprising: a memory and one or more processors connected with the memory, the memory storing a computer program, the processors being configured to execute the computer program to implement the high-speed magnetic levitation regenerative braking energy storage method according to any one of claims 4 to 7.
10. A computer-readable storage medium storing computer-executable instructions for performing the method of high-speed magnetic levitation regenerative braking energy storage according to any one of claims 4 to 7.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114475264A (en) * | 2022-04-18 | 2022-05-13 | 中国铁路设计集团有限公司 | Self-adaptive recovery device and recovery method for braking energy of motor train unit |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103311950A (en) * | 2013-05-15 | 2013-09-18 | 华中科技大学 | Urban rail train regenerative brake energy absorbing and using system and method |
| CN103496326A (en) * | 2013-09-23 | 2014-01-08 | 南车株洲电力机车研究所有限公司 | Vehicle-mounted energy storing device and method for electric locomotive and electric vehicle set |
| CN106183898A (en) * | 2016-07-10 | 2016-12-07 | 安庆新景技电子科技有限公司 | Vehicle-mounted super capacitor controls device |
| CN109572491A (en) * | 2019-01-23 | 2019-04-05 | 西南交通大学 | A kind of electric railway traction net powered construction and its control method |
| CN112009272A (en) * | 2020-09-15 | 2020-12-01 | 中国电建集团中南勘测设计研究院有限公司 | Control method and system for energy storage system of double-flow locomotive |
| CN112152270A (en) * | 2019-06-26 | 2020-12-29 | 南京南瑞继保电气有限公司 | Superconducting magnetic energy storage device applied to subway train regenerative braking and control method thereof |
-
2021
- 2021-09-24 CN CN202111120448.3A patent/CN113872179A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103311950A (en) * | 2013-05-15 | 2013-09-18 | 华中科技大学 | Urban rail train regenerative brake energy absorbing and using system and method |
| CN103496326A (en) * | 2013-09-23 | 2014-01-08 | 南车株洲电力机车研究所有限公司 | Vehicle-mounted energy storing device and method for electric locomotive and electric vehicle set |
| CN106183898A (en) * | 2016-07-10 | 2016-12-07 | 安庆新景技电子科技有限公司 | Vehicle-mounted super capacitor controls device |
| CN109572491A (en) * | 2019-01-23 | 2019-04-05 | 西南交通大学 | A kind of electric railway traction net powered construction and its control method |
| CN112152270A (en) * | 2019-06-26 | 2020-12-29 | 南京南瑞继保电气有限公司 | Superconducting magnetic energy storage device applied to subway train regenerative braking and control method thereof |
| CN112009272A (en) * | 2020-09-15 | 2020-12-01 | 中国电建集团中南勘测设计研究院有限公司 | Control method and system for energy storage system of double-flow locomotive |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114475264A (en) * | 2022-04-18 | 2022-05-13 | 中国铁路设计集团有限公司 | Self-adaptive recovery device and recovery method for braking energy of motor train unit |
| CN114475264B (en) * | 2022-04-18 | 2022-06-21 | 中国铁路设计集团有限公司 | Self-adaptive recovery device and recovery method for braking energy of motor train unit |
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