CN109017434B - Power supply system, method and device for magnetic suspension train - Google Patents
Power supply system, method and device for magnetic suspension train Download PDFInfo
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- CN109017434B CN109017434B CN201810843273.0A CN201810843273A CN109017434B CN 109017434 B CN109017434 B CN 109017434B CN 201810843273 A CN201810843273 A CN 201810843273A CN 109017434 B CN109017434 B CN 109017434B
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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
- B60L13/04—Magnetic suspension or levitation for vehicles
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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
- B60L2200/00—Type of vehicles
- B60L2200/26—Rail vehicles
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Abstract
The invention provides a power supply system, a method and a device for a magnetic suspension train, which utilize a digital controller to control the electric quantity sent by an electromagnetic module when the running speed of the magnetic suspension train is determined not to be matched with the acquired first gap data, and can adjust the electric quantity sent by the power supply system for the magnetic suspension train in real time according to the actual running speed of the magnetic suspension train, thereby improving the power supply efficiency of the power supply system for the magnetic suspension train.
Description
Technical Field
The invention relates to the technical field of train power supply, in particular to a power supply system, a power supply method and a power supply device for a magnetic suspension train.
Background
At present, a magnetic suspension train realizes non-contact suspension and guidance between the train and a track through electromagnetic force, and then utilizes the electromagnetic force generated by power supply equipment to draw the train to run. So that the magnetic suspension train can normally run.
The running speed of the magnetic suspension train is obtained under the traction of the electromagnetic force generated by the power supply equipment, and the larger the generating capacity of the power supply equipment is, the faster the running speed of the magnetic suspension train is. The running speed of the magnetic suspension train is high and can reach more than 500 kilometers, but the magnetic suspension train needs to be decelerated and passed through a cave and a tunnel so as to ensure the running safety of the magnetic suspension train. The travel speed of the magnetic levitation vehicle is changed in real time according to the actual operating conditions.
The power generation capacity of the power supply equipment of the magnetic levitation train cannot be changed according to the change of the running speed of the magnetic levitation train, so that the power supply efficiency of the power supply equipment is low.
Disclosure of Invention
To solve the above problems, embodiments of the present invention provide a system, a method and a device for supplying power to a magnetic levitation train.
In a first aspect, an embodiment of the present invention provides a magnetic levitation train power supply system, including: the device comprises a power module, a digital controller, an electromagnetic module, an electromagnet active controller, a gap sensor, a load and a battery;
the digital controller is respectively connected with the power module, the gap sensor, the electromagnet active controller and the battery;
the power module is also respectively connected with the electromagnetic module and the load;
the electromagnet active controller is also connected with the electromagnetic module;
the battery is also connected with the load;
the gap sensor is used for acquiring first gap data between the magnetic suspension train and a track and transmitting the acquired first gap data to the digital controller;
the digital controller is used for acquiring the running speed of the magnetic suspension train and the first gap data, and controlling the electric quantity generated by the electromagnetic module when the running speed of the magnetic suspension train is not matched with the first gap data;
and the electromagnet active controller is used for controlling the electromagnetic module under the control of the digital controller.
In a second aspect, an embodiment of the present invention further provides a magnetic levitation train power supply method, including:
acquiring the running speed of the magnetic suspension train and first gap data between the magnetic suspension train and a track;
and when the running speed of the magnetic suspension train is not matched with the first gap data, controlling the electric quantity sent by the electromagnetic module.
In a third aspect, an embodiment of the present invention further provides a magnetic levitation train power supply apparatus, including:
the acquisition module is used for acquiring the running speed of the magnetic suspension train and first gap data between the magnetic suspension train and a track;
and the processing module is used for controlling the electric quantity sent by the electromagnetic module when the running speed of the magnetic suspension train is not matched with the first gap data.
In the solutions provided in the first to third aspects of the embodiments of the present invention, when it is determined that the running speed of the magnetic levitation train is not matched with the acquired first gap data, the digital controller is used to control the electric quantity generated by the electromagnetic module, and compared with the electric quantity generated by the magnetic levitation train power supply system which cannot be adjusted according to the real-time running speed of the magnetic levitation train in the related art, the electric quantity generated by the magnetic levitation train power supply system can be adjusted in real time according to the actual running speed of the magnetic levitation train, so that the gap between the magnetic levitation train and the track is matched with the running speed, and the power supply efficiency of the magnetic levitation train power supply system is improved.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a maglev train power supply system provided in embodiment 1 of the present invention;
fig. 2 is a flow chart of a method for supplying power to a magnetic levitation train according to embodiment 2 of the present invention;
fig. 3 shows a schematic structural diagram of a magnetic levitation train power supply device provided in embodiment 3 of the present invention.
Icon: 100-a power module; 102-a digital controller; 104-an electromagnetic module; 106-electromagnet active controller; 108-a gap sensor; 110-load; 112-a battery; 114-a current collector; 300-an acquisition module; 302-processing module.
Detailed Description
At present, in order to ensure the normal running of the maglev train, a power supply system of the maglev train is required to generate power so that the maglev train can keep a certain gap distance with the track during running, but the gap between the maglev train and the track is different under different running speeds (such as 300 km/h and 500 km/h). Generally, the faster the speed, the greater the clearance that needs to be maintained with the track; however, the larger the gap required to be kept with the track, the larger the electric quantity generated by the power supply system of the magnetic suspension train is required to be, and the power generation quantity of the power supply equipment of the magnetic suspension train in the related art cannot be changed according to the change of the running speed of the magnetic suspension train, so that the power supply efficiency of the power supply equipment is low. Based on the above, the application provides a maglev train power supply system, method and device, and the digital controller in the power supply system is used for controlling the electric quantity sent by the electromagnetic module when the running speed of the maglev train is determined not to be matched with the acquired first gap data, so that the gap data between the maglev train and the track is matched with the running speed through the electric quantity sent by the electromagnetic module, and the power supply efficiency of the maglev train power supply system is improved.
According to the scheme, the running speed of the fixed magnetic suspension train and the first gap data between the fixed magnetic suspension train and the track are obtained through the digital controller arranged in the power supply system of the magnetic suspension train, and when the running speed of the magnetic suspension train is determined to be not matched with the obtained first gap data according to the obtained running speed of the magnetic suspension train and the first gap data between the magnetic suspension train and the track, the digital controller can control the electric quantity sent by the electromagnetic module, the electric quantity sent by the electromagnetic module enables the gap data between the magnetic suspension train and the track to be matched with the running speed, and the power supply efficiency of the power supply system of the magnetic suspension train is improved.
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, the present application is described in further detail with reference to the accompanying drawings and the detailed description.
Example 1
Referring to the schematic structural diagram of the power supply system for a magnetic levitation train shown in fig. 1, the power supply system for a magnetic levitation train according to the present embodiment includes: power module 100, digital controller 102, electromagnetic module 104, electromagnet active controller 106, gap sensor 108, load 110, and battery 112.
The digital controller 102 is connected to the power module 100, the gap sensor 108, the electromagnet active controller 106, and the battery 112, respectively.
The power module 100 is also connected to the electromagnetic module 104 and the load 110, respectively.
The electromagnet active controller 106 is also connected to the electromagnet module 104.
The battery 112 is also connected to the load 110.
The gap sensor 108 is configured to acquire first gap data between the maglev train and the track, and transmit the acquired first gap data to the digital controller 102.
In one embodiment, the gap sensor 108 may be any distance sensor that can measure the distance between the magnetic levitation train and the track in the prior art, and is not described in detail herein.
The digital controller 102 is configured to obtain a running speed of the magnetic levitation train and first gap data between the magnetic levitation train and a track, and control the electric quantity generated by the electromagnetic module 104 when the running speed of the magnetic levitation train is not matched with the obtained first gap data.
The process of the digital controller 102 controlling the amount of power generated by the electromagnetic module 104 includes: the electromagnetic active controller 106 controls the electric power generated by the electromagnetic module 104, so that the electric power generated by the electromagnetic module 104 matches the gap between the maglev train and the track with the running speed.
The digital controller 102 obtains the traveling speed of the magnetic levitation vehicle from the train information stored in the magnetic levitation vehicle.
The train information includes, but is not limited to: train identification, vehicle model, cumulative mileage traveled, cumulative time traveled, travel speed, and average travel speed.
The running speed is obtained by a main controller (not shown) of the magnetic levitation train through a speed sensor provided on the magnetic levitation train, and the main controller obtains the running speed measured by the speed sensor in real time and updates the obtained running speed into the train information.
The main controller is connected with the digital controller and is used for controlling the running process of the magnetic suspension train.
Specifically, the digital controller is configured to control the electric quantity generated by the electromagnetic module when the traveling speed of the magnetic levitation train does not match the first gap data, and may perform the following steps (1) to (3):
(1) acquiring a corresponding relation among the train running speed, second gap data and electric quantity, and determining the second gap data and the electric quantity corresponding to the running speed of the magnetic suspension train based on the corresponding relation among the train running speed, the second gap data and the electric quantity;
(2) comparing the first gap data with the second gap data to obtain a comparison result;
(3) and when the comparison result indicates that the running speed of the magnetic suspension train is not matched with the acquired first gap data, sending electric quantity corresponding to the running speed of the magnetic suspension train to the electromagnet active controller, so that the electromagnet active controller controls the electromagnetic module according to the electric quantity, and the electromagnet active controller controls the electric quantity sent by the electromagnetic module, so that the gap between the magnetic suspension train and the track is matched with the running speed.
In the step (1), the correspondence relationship between the train traveling speed, the second gap data, and the electric quantity is stored in advance in the digital controller of the magnetic levitation train by a person skilled in the art before the magnetic levitation train is shipped from the factory.
The data in the corresponding relation among the train running speed, the second gap data and the electric quantity is obtained by a person skilled in the art in the process of testing the magnetic suspension train.
In one embodiment, the correspondence relationship between the train running speed, the second gap data and the electric quantity may be expressed as: 300 km/h; 10 mm to 15 mm; 4000 kilowatt-hours.
Here, the digital controller 102 may be any processor, microprocessor or single chip microcomputer capable of controlling a power supply system of a magnetic levitation train in the prior art, and details are not repeated here.
The electromagnet active controller 106 is configured to control the electric quantity output by the electromagnetic module 104 under the control of the digital controller 102.
In one embodiment, the electromagnetic module 104 includes: the electromagnet and the power generation coil are sleeved outside the electromagnet.
Specifically, in order to enable the maglev train power supply system to work normally, the electromagnetic module 104 is configured to generate electric power after the maglev train is started, and transmit the generated electric power to the power module 100.
The power module 100 is configured to boost a voltage of the electric power generated by the electromagnetic module 104 under the control of the digital controller 102, and provide the boosted electric power to the load; and is capable of performing a charging operation on the battery 112 under the control of the digital controller 102.
In one embodiment, the power module 100 may employ a boost chopper.
The load 110 may be, but is not limited to: an air conditioning system, a multimedia system and the like in a magnetic levitation train require electric power to drive devices and equipment.
The battery 112 is used for providing electric power to the load 110.
The battery 112 may be a secondary battery.
In summary, in the maglev train power supply system provided in this embodiment, when it is determined that the running speed of the maglev train is not matched with the acquired first gap data, the digital controller is used to control the electric quantity emitted by the electromagnetic module, and compared with the electric quantity emitted by the maglev train power supply system which cannot be adjusted according to the real-time running speed of the maglev train in the related art, the electric quantity emitted by the maglev train power supply system can be adjusted in real time according to the actual running speed of the maglev train, so that the gap between the maglev train and the track is matched with the running speed, and the power supply efficiency of the maglev train.
In the power supply system for a maglev train, during the operation of the power supply system for a maglev train, the electromagnetic module and the battery are used for generating electric quantity, and the electric quantity generated by the electromagnetic module and the battery is provided for a load, but the electric quantity of the battery is limited and cannot be continuously provided for the load, so as to ensure that the battery can continuously generate the electric quantity, in the power supply system for a maglev train provided in this embodiment, the digital controller 102 is further configured to obtain electric quantity information of the battery 112, and control the power module 100 to perform a charging operation on the battery 112 when it is determined that the battery 112 needs to be charged according to the electric quantity.
The power information is used for representing the power percentage of the remaining power in the battery and the total power of the battery.
The battery 112 will send power information to the digital controller 102 when its power percentage changes.
Specifically, the digital controller is configured to obtain power information of the battery, and control the power module to perform a charging operation on the battery when it is determined that the battery needs to be charged according to the power information, and may perform the following steps (1) to (2):
(1) acquiring the electric quantity information of the battery;
(2) and when the electric quantity information is less than or equal to a first electric quantity threshold value, controlling the power module to charge the battery.
In the step (2), the first electric quantity threshold may be 70%. Of course, the first electric quantity threshold may be set to any value between 50% and 80%, which is not described in detail herein.
As can be seen from the descriptions in the steps (1) to (2), when the electric quantity of the battery is smaller than the first electric quantity threshold value, the control power module performs the charging operation on the battery, so that the service life of the battery can be prolonged, and the power supply efficiency can be improved.
When the power consumption of the load is relatively large, the battery can be ensured to be capable of continuously generating the electric quantity under the condition that the electric quantity percentage of the battery is still reduced in the charging state, in the power supply system for a magnetic levitation train provided by this embodiment, the digital controller 102 may further continue to perform the following steps (3) to (5):
(3) when the electric quantity information is less than or equal to a second electric quantity threshold value, acquiring position information of an external power supply point and position information of the magnetic suspension train;
(4) determining an external power supply point closest to the magnetic suspension train according to the position information of the external power supply point and the position information of the magnetic suspension train;
(5) and controlling the maglev train to travel to the destination by using the external power supply point closest to the maglev train as the destination of the maglev train, thereby charging the battery by using the external power supply point closest to the maglev train.
In the step (3), the second electric power threshold value is smaller than the first electric power threshold value.
In one embodiment, the second charge threshold may be 20%. Of course, the second electric quantity threshold may be set to any value between 10% and 30%, which is not described in detail herein.
The position information of the maglev train is obtained by the digital controller 102 through a positioning module (not shown) provided in the maglev train. The position information of the magnetic levitation train includes position coordinates of a position of the magnetic levitation train.
The positioning module can adopt but is not limited to: global positioning system or beidou positioning system.
The external power supply point is used for charging a battery in a power supply system of the magnetic suspension train and is provided with an external power supply power rail used for charging the battery.
The external power supply point may be a station which must stop on the magnetic levitation train running route, or a station which passes through the running route but does not necessarily stop.
The position information of the external power supply point is stored in the digital controller in advance. The position information of the external power supply point includes: the identification of the external power supply point and the position coordinates of the external power supply point.
In the step (4), when the position information of the external power supply point and the position information of the magnetic levitation train are based, the distance between the magnetic levitation train and different external power supply points may be calculated, and then the external power supply point on the travel route having the smallest distance from the magnetic levitation train may be determined as the external power supply point closest to the magnetic levitation train.
The method for calculating the distance between the magnetic suspension train and different external power supply points according to the position coordinates recorded in the position information can adopt any known method for calculating the distance between two points by using the coordinates of the two points in the prior art, and is not described herein again.
The step (5) specifically includes the following steps (51) to (53):
(51) acquiring a destination identifier and an identifier of an external power supply point closest to the maglev train;
(52) judging whether the mark of the external power supply point closest to the magnetic suspension train is consistent with the mark of the destination, if so, finishing, otherwise, executing the step (53);
(53) and controlling the maglev train to travel to the destination by using the external power supply point closest to the maglev train as the destination of the maglev train, thereby charging the battery by using the external power supply point closest to the maglev train.
In the above step (51), the identification of the destination is recorded in a destination list provided in the digital controller.
In the step (53), after the external power supply point closest to the maglev train is set as the destination of the maglev train, the digital controller transmits the identifier of the external power supply point closest to the maglev train to the main controller, so that the main controller changes the destination of the maglev train, thereby controlling the maglev train to travel to the changed destination (the external power supply point closest to the maglev train).
In order to charge the battery at the external power supply point, the power supply system for a magnetic levitation train proposed in this embodiment further includes: a current collector 114 connected to the power module; the external power supply point is provided with an external power supply rail; the power module 100 is also connected to the battery 112;
the current collector 114 is configured to transmit the electric power generated by the external power supply rail to the power module 100;
when the maglev train reaches an external power supply point closest to the maglev train, the external power supply rail is connected to the current collector 114, and is configured to generate electric power, transmit the generated electric power to the power module 100 through the current collector 114, and transmit the generated electric power to the battery through the power module 100 for charging operation.
As can be seen from the above description, when it is necessary to charge the battery of the maglev train power supply system through the external power supply point, the external power supply point closest to the maglev train is determined, and then the external power supply point closest to the maglev train is used as the destination of the maglev train, and the maglev train is controlled to travel to the destination, so that the battery is charged through the external power supply point closest to the maglev train, and even if the power consumption of the load is large, the battery can be charged, and the service life of the battery is further prolonged.
Based on the same inventive concept, a maglev train power supply method corresponding to the maglev train power supply system is further provided in the embodiment of the present application, and as the principle of solving the problem of the method in the embodiment of the present application is similar to the function of the digital controller described in the maglev train power supply system in embodiment 1 of the present application, the implementation of the method can refer to the implementation of the maglev train power supply system, and repeated details are not repeated.
Example 2
The present embodiment provides a method for supplying power to a magnetic levitation train, and the execution main body is the digital controller in the above embodiment 1.
Referring to a specific flow of the maglev train power supply method shown in fig. 2, the maglev train power supply method proposed in this embodiment includes the following specific steps:
and 200, acquiring the running speed of the magnetic suspension train and first gap data between the magnetic suspension train and the track.
In step 200, the running speed of the magnetic levitation vehicle is acquired from the train information by the digital controller, and the first gap data is acquired from the gap sensor by the digital controller.
Step 202, when the running speed of the magnetic suspension train is not matched with the first gap data, controlling the electric quantity sent by the electromagnetic module.
Specifically, the step 202 specifically includes the following steps (1) to (3):
(1) acquiring a corresponding relation among the train running speed, second gap data and electric quantity, and determining the second gap data and the electric quantity corresponding to the running speed of the magnetic suspension train based on the corresponding relation among the train running speed, the second gap data and the electric quantity;
(2) comparing the first gap data with the second gap data to obtain a comparison result;
(3) and when the comparison result indicates that the running speed of the magnetic suspension train is not matched with the first gap data, sending the electric quantity corresponding to the running speed of the magnetic suspension train to the electromagnet active controller, so that the electromagnet active controller controls the electromagnetic module according to the electric quantity, and the electromagnet active controller controls the electric quantity sent by the electromagnetic module, so that the gap between the magnetic suspension train and the track is matched with the running speed.
In the step (1), the correspondence relationship between the train running speed, the second gap data, and the electric quantity is stored in the digital controller in advance.
In summary, according to the maglev train power supply method provided in this embodiment, when it is determined that the running speed of the maglev train is not matched with the acquired first gap data, the electric quantity generated by the electromagnetic module is controlled, and compared with the electric quantity generated by the maglev train power supply system which cannot be adjusted according to the real-time running speed of the maglev train in the related art, the electric quantity generated by the maglev train power supply system can be adjusted in real time according to the actual running speed of the maglev train, so that the gap between the maglev train and the track is matched with the running speed, and the power supply efficiency of the maglev train.
In the working process of the power supply system for the maglev train, the electromagnetic module and the battery are used for generating electric quantity, and the electric quantity generated by the electromagnetic module and the battery is provided for a load for use, but the electric quantity of the battery is limited, and the electric quantity cannot be continuously provided for the load, and in order to ensure that the battery can continuously generate the electric quantity, the power supply method for the maglev train provided by the embodiment further comprises the following steps (1) to (2):
(1) acquiring the electric quantity information of the battery;
(2) and when the electric quantity information is less than or equal to a first electric quantity threshold value, controlling the power module to charge the battery.
In the step (1), the power information of the battery is obtained from the battery by the digital controller.
As can be seen from the descriptions in the steps (1) to (2), when the electric quantity of the battery is smaller than the first electric quantity threshold value, the control power module performs the charging operation on the battery, so that the service life of the battery can be prolonged, and the power supply efficiency can be improved.
When the power consumption of the load is relatively large, the battery can be ensured to be capable of continuously generating the electric quantity under the condition that the electric quantity percentage of the battery is still reduced in the charging state, and the power supply method for the maglev train provided by the embodiment can also continue to execute the flow described in the following steps (3) to (5):
(3) when the electric quantity information is less than or equal to a second electric quantity threshold value, acquiring position information of an external power supply point and position information of the magnetic suspension train; wherein the second power threshold is less than the first power threshold;
(4) determining an external power supply point closest to the magnetic suspension train according to the position information of the external power supply point and the position information of the magnetic suspension train;
(5) and controlling the maglev train to travel to the destination by using the external power supply point closest to the maglev train as the destination of the maglev train, thereby charging the battery by using the external power supply point closest to the maglev train.
As can be seen from the description of the steps (3) to (5), when the battery of the power supply system of the magnetic levitation train needs to be charged through the external power supply point, the external power supply point closest to the magnetic levitation train is determined, then the external power supply point closest to the magnetic levitation train is used as the destination of the magnetic levitation train, and the magnetic levitation train is controlled to travel to the destination, so that the battery is charged through the external power supply point closest to the magnetic levitation train, and even if the power consumption of the load is large, the battery can be charged, and the service life of the battery is further prolonged.
Based on the same inventive concept, a maglev train power supply device corresponding to the maglev train power supply method is further provided in the embodiment of the present application, and as the principle of solving the problem of the device in the embodiment of the present application is similar to the function of the maglev train power supply method in embodiment 2 of the present application, the implementation of the device can refer to the implementation of the maglev train power supply method, and repeated details are omitted.
Example 3
Referring to the structure of the maglev train power supply apparatus shown in fig. 3, the present embodiment proposes a maglev train power supply apparatus, including:
an obtaining module 300, configured to obtain a driving speed of a magnetic levitation train and first gap data between the magnetic levitation train and a track;
the processing module 302 is configured to control the electric quantity generated by the electromagnetic module when the traveling speed of the magnetic levitation train is not matched with the first gap data.
The processing module is specifically configured to:
acquiring a corresponding relation among the train running speed, second gap data and electric quantity, and determining the second gap data and the electric quantity corresponding to the running speed of the magnetic suspension train based on the corresponding relation among the train running speed, the second gap data and the electric quantity;
comparing the first gap data with the second gap data to obtain a comparison result;
and when the comparison result indicates that the running speed of the magnetic suspension train is not matched with the first gap data, sending electric quantity corresponding to the running speed of the magnetic suspension train to the electromagnet active controller, so that the electromagnet active controller controls the electromagnetic module according to the electric quantity, and the electromagnet active controller controls the electric quantity sent by the electromagnetic module, so that the gap between the magnetic suspension train and the track is matched with the running speed.
In summary, the maglev train power supply device provided in this embodiment controls the electric quantity emitted by the electromagnetic module through the electromagnet active controller when it is determined that the running speed of the maglev train is not matched with the acquired first gap data, and compared with the electric quantity emitted by a maglev train power supply system which cannot be adjusted according to the real-time running speed of the maglev train in the related art, the electric quantity emitted by the maglev train power supply system can be adjusted in real time according to the actual running speed of the maglev train, so that the gap between the maglev train and the track is matched with the running speed, and the power supply efficiency of the maglev train power supply system is.
The maglev train power supply system utilizes electromagnetic module and battery to produce the electric quantity at the course of the work to the electric quantity that produces electromagnetic module and battery provides the load and uses, but the electric quantity of battery is limited, can not be continuous to provide the electric quantity to the load, in order to guarantee that the battery can continuously produce the electric quantity, the maglev train power supply unit that this embodiment provided still includes:
the electric quantity obtaining module is used for obtaining electric quantity information of the battery;
and the charging control module is used for controlling the power module to charge the battery when the electric quantity information is less than or equal to a first electric quantity threshold value.
As can be seen from the above description, when the electric quantity of the battery is smaller than the first electric quantity threshold, the control power module performs the charging operation on the battery, so that the service life of the battery can be prolonged, and the power supply efficiency can be improved.
When load power consumption is great, guarantee under the condition that the battery percentage still descends under the charged state that the battery can continuously produce the electric quantity, the maglev train power supply unit that this embodiment provided still includes:
the position acquisition module is used for acquiring the position information of an external power supply point and the position information of the magnetic suspension train when the electric quantity information is less than or equal to a second electric quantity threshold value; wherein the second power threshold is less than the first power threshold;
the determining module is used for determining the external power supply point closest to the magnetic suspension train according to the position information of the external power supply point and the position information of the magnetic suspension train;
and a control module for controlling the maglev train to travel to the destination by using an external power supply point nearest to the maglev train as the destination of the maglev train, so as to charge the battery through the external power supply point nearest to the maglev train.
As can be seen from the above description, when it is necessary to charge the battery of the maglev train power supply system through the external power supply point, the external power supply point closest to the maglev train is determined, and then the external power supply point closest to the maglev train is used as the destination of the maglev train, and the maglev train is controlled to travel to the destination, so that the battery is charged through the external power supply point closest to the maglev train, and even if the power consumption of the load is large, the battery can be charged, and the service life of the battery is further prolonged.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (14)
1. A magnetically levitated train power supply system, comprising: the device comprises a power module, a digital controller, an electromagnetic module, an electromagnet active controller, a gap sensor, a load and a battery;
the digital controller is respectively connected with the power module, the gap sensor, the electromagnet active controller and the battery;
the power module is also respectively connected with the electromagnetic module and the load;
the electromagnet active controller is also connected with the electromagnetic module;
the battery is also connected with the load;
the gap sensor is used for acquiring first gap data between the magnetic suspension train and a track and transmitting the acquired first gap data to the digital controller;
the digital controller is used for acquiring the running speed of the magnetic suspension train and the first gap data, and controlling the electric quantity generated by the electromagnetic module when the running speed of the magnetic suspension train is not matched with the first gap data;
and the electromagnet active controller is used for controlling the electric quantity output by the electromagnetic module under the control of the digital controller, so that the electric quantity generated by the electromagnetic module enables the gap between the magnetic suspension train and the track to be matched with the running speed.
2. The maglev train power supply system of claim 1, wherein the electromagnetic module is configured to generate power and transmit the generated power to the power module after the maglev train is started;
the power module is used for boosting the voltage in the electric quantity generated by the electromagnetic module under the control of the digital controller and providing the electric quantity with the boosted voltage for the load; and can perform a charging operation on the battery under the control of the digital controller;
the digital controller is further used for acquiring the electric quantity information of the battery and controlling the power module to charge the battery when the battery is determined to need to be charged according to the electric quantity information;
the battery is used for providing electric quantity for the load.
3. A maglev power supply system according to claim 1, wherein the digital controller is configured to control the amount of power generated by the electromagnetic module when the travel speed of the maglev does not match the first gap data, and comprises:
acquiring a corresponding relation among a train running speed, second gap data and electric quantity, and determining the second gap data and the electric quantity corresponding to the running speed of the magnetic suspension train based on the corresponding relation among the train running speed, the second gap data and the electric quantity;
comparing the first gap data with the second gap data to obtain a comparison result;
and when the comparison result indicates that the running speed of the magnetic suspension train is not matched with the first gap data, sending the electric quantity corresponding to the running speed of the magnetic suspension train to the electromagnet active controller, so that the electromagnet active controller controls the electromagnetic module according to the electric quantity, and the electromagnet active controller controls the electric quantity sent by the electromagnetic module, so that the gap between the magnetic suspension train and the track is matched with the running speed.
4. The maglev train power supply system of claim 2, wherein the digital controller is configured to obtain power information of the battery, and control the power module to perform a charging operation on the battery when it is determined that the battery needs to be charged according to the power information, and the method includes:
acquiring the electric quantity information of the battery;
and when the electric quantity information is less than or equal to a first electric quantity threshold value, controlling the power module to charge the battery.
5. The maglev train power supply system of claim 4, wherein the digital controller is configured to obtain power information of the battery and control the power module to perform a charging operation on the battery when it is determined that the battery needs to be charged according to the power information, and further comprising:
when the electric quantity information is less than or equal to a second electric quantity threshold value, acquiring position information of an external power supply point and position information of the magnetic suspension train; wherein the second charge threshold is less than the first charge threshold;
determining an external power supply point closest to the magnetic suspension train according to the position information of the external power supply point and the position information of the magnetic suspension train;
and controlling the maglev train to travel to the destination, thereby charging the battery through the external power supply point closest to the maglev train.
6. A power supply system for magnetic levitation trains as claimed in claim 5, further comprising: a current collector connected to the power module; the external power supply point is provided with an external power supply power rail; the power module is also connected with the battery;
the current collector is used for transmitting the electric quantity generated by the external power supply power rail to the power module;
when the magnetic suspension train reaches an external power supply point closest to the magnetic suspension train, the external power supply power rail is connected with the current collector and used for generating electric quantity, transmitting the generated electric quantity to the power module through the current collector and transmitting the generated electric quantity to the battery through the power module for charging operation.
7. A method for supplying power to a magnetic levitation train, comprising:
acquiring the running speed of a magnetic suspension train and first gap data between the magnetic suspension train and a track;
and when the running speed of the magnetic suspension train is not matched with the first gap data, controlling the electric quantity sent by the electromagnetic module, so that the gap between the magnetic suspension train and the track is matched with the running speed by the electric quantity sent by the electromagnetic module.
8. The method of claim 7, wherein controlling the amount of power generated by the electromagnetic module when the travel speed of the magnetic levitation vehicle does not match the first gap data comprises:
acquiring a corresponding relation among a train running speed, second gap data and electric quantity, and determining the second gap data and the electric quantity corresponding to the running speed of the magnetic suspension train based on the corresponding relation among the train running speed, the second gap data and the electric quantity;
comparing the first gap data with the second gap data to obtain a comparison result;
and when the comparison result indicates that the running speed of the magnetic suspension train is not matched with the first gap data, sending the electric quantity corresponding to the running speed of the magnetic suspension train to an electromagnet active controller, so that the electromagnet active controller controls the electromagnetic module according to the electric quantity, and the electromagnet active controller controls the electric quantity sent by the electromagnetic module, so that the gap between the magnetic suspension train and the track is matched with the running speed.
9. The method for supplying power to a magnetic levitation train as recited in claim 7, further comprising:
acquiring the electric quantity information of the battery;
and when the electric quantity information is less than or equal to a first electric quantity threshold value, controlling a power module to charge the battery.
10. The method for supplying power to a magnetic levitation train as recited in claim 9, further comprising:
when the electric quantity information is less than or equal to a second electric quantity threshold value, acquiring position information of an external power supply point and position information of the magnetic suspension train; wherein the second charge threshold is less than the first charge threshold;
determining an external power supply point closest to the magnetic suspension train according to the position information of the external power supply point and the position information of the magnetic suspension train;
and controlling the maglev train to travel to the destination, thereby charging the battery through the external power supply point closest to the maglev train.
11. A magnetic levitation train power supply apparatus, comprising:
the acquisition module is used for acquiring the running speed of the magnetic suspension train and first gap data between the magnetic suspension train and a track;
and the processing module is used for controlling the electric quantity sent by the electromagnetic module when the running speed of the magnetic suspension train is not matched with the first gap data, so that the gap between the magnetic suspension train and the track is matched with the running speed by the electric quantity sent by the electromagnetic module.
12. The maglev train power supply of claim 11, wherein the processing module is specifically configured to:
acquiring a corresponding relation among a train running speed, second gap data and electric quantity, and determining the second gap data and the electric quantity corresponding to the running speed of the magnetic suspension train based on the corresponding relation among the train running speed, the second gap data and the electric quantity;
comparing the first gap data with the second gap data to obtain a comparison result;
and when the comparison result indicates that the running speed of the magnetic suspension train is not matched with the first gap data, sending electric quantity corresponding to the running speed of the magnetic suspension train to an electromagnet active controller, so that the electromagnet active controller controls the electromagnetic module according to the electric quantity, and the electromagnet active controller controls the electric quantity sent by the electromagnetic module, so that the gap between the magnetic suspension train and the track is matched with the running speed.
13. The power supply apparatus for magnetic levitation train as recited in claim 11, further comprising:
the electric quantity obtaining module is used for obtaining electric quantity information of the battery;
and the charging control module is used for controlling the power module to charge the battery when the electric quantity information is less than or equal to a first electric quantity threshold value.
14. A maglev train power supply apparatus according to claim 13, further comprising:
the position acquisition module is used for acquiring the position information of an external power supply point and the position information of the magnetic suspension train when the electric quantity information is less than or equal to a second electric quantity threshold value; wherein the second charge threshold is less than the first charge threshold;
the determining module is used for determining the external power supply point closest to the magnetic suspension train according to the position information of the external power supply point and the position information of the magnetic suspension train;
and the control module is used for taking the external power supply point closest to the magnetic suspension train as the destination of the magnetic suspension train and controlling the magnetic suspension train to travel to the destination, so that the battery is charged through the external power supply point closest to the magnetic suspension train.
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| CN201810843273.0A CN109017434B (en) | 2018-07-27 | 2018-07-27 | Power supply system, method and device for magnetic suspension train |
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| CN201810843273.0A CN109017434B (en) | 2018-07-27 | 2018-07-27 | Power supply system, method and device for magnetic suspension train |
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| CN109017434B true CN109017434B (en) | 2020-11-06 |
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| JPH06217404A (en) * | 1993-01-12 | 1994-08-05 | Toshiba Corp | Controller for inductive current collection coil in magnetic levitation railway |
| CN100497031C (en) * | 2004-05-26 | 2009-06-10 | 上海磁浮交通工程技术研究中心 | Emergent power supplying method for fault and stop of high-speed magnetic suspending train |
| CN101289066B (en) * | 2007-04-18 | 2012-09-05 | 上海磁浮交通工程技术研究中心 | Compliance regulation means of suspension clearance and control current of electromagnetic type maglev train |
| CN106427661A (en) * | 2016-12-13 | 2017-02-22 | 北京九州动脉隧道技术有限公司 | Magnetically levitated train |
| CN106828183B (en) * | 2017-04-06 | 2023-11-07 | 西南交通大学 | Linear power generation device, vehicle-mounted power supply system and maglev train |
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