KR101945232B1 - Linear motor propulsion system - Google Patents

Linear motor propulsion system Download PDF

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Publication number
KR101945232B1
KR101945232B1 KR1020150143680A KR20150143680A KR101945232B1 KR 101945232 B1 KR101945232 B1 KR 101945232B1 KR 1020150143680 A KR1020150143680 A KR 1020150143680A KR 20150143680 A KR20150143680 A KR 20150143680A KR 101945232 B1 KR101945232 B1 KR 101945232B1
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KR
South Korea
Prior art keywords
vehicle
armature coil
ground
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coil
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KR1020150143680A
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Korean (ko)
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KR20170044265A (en
Inventor
김명룡
이병송
정신명
이준호
이수길
백제훈
이승환
이경표
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한국철도기술연구원
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Priority to KR1020150143680A priority Critical patent/KR101945232B1/en
Publication of KR20170044265A publication Critical patent/KR20170044265A/en
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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
    • B60L13/03—Electric propulsion by linear motors
    • 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
    • B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
    • B60L15/002—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of propulsion for monorail vehicles, suspension vehicles or rack railways; for control of magnetic suspension or levitation for vehicles for propulsion purposes
    • B60L15/005—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of propulsion for monorail vehicles, suspension vehicles or rack railways; for control of magnetic suspension or levitation for vehicles for propulsion purposes for control of propulsion for vehicles propelled by linear motors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
    • H02K41/02—Linear motors; Sectional motors

Abstract

The present invention relates to a linear motor propulsion system driven by an on-vehicle variable armature coil, A two-phase secondary armature coil provided in a lower portion of the vehicle and generating an alternating magnetic field so as to generate a propulsion force of the vehicle, .
According to the present invention, the generation of the dragging torque due to the complicated end-turn and the end effect of the winding end of the conventional ground-driven linear motor through the drive of the two-phase secondary armature structure and the DC pulse voltage, It is possible to improve the problem caused by the use of the switching frequency and to increase the efficiency because the driving force can be generated without the slip.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a linear motor propulsion system driven by a variable-

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a linear motor propulsion system driven by an on-vehicle variable armature coil, and more particularly, to an on-vehicle variable linear motor propulsion system driven by a DC pulse voltage. Which can realize a system capable of improving the cooling performance, facilitating high acceleration / deceleration performance through non-adhesive driving characteristics, and running at high speed, and capable of operating several vehicles in one control period, To a linear motor propulsion system driven by a coil.

Generally, a linear propulsion system is a device in which a field motor and a rotor (or an armature) are installed on a vehicle and ground, respectively, with a rotating electric motor in an unfolded state, It is possible to have high acceleration / deceleration performance and slope road driving performance because there is no restriction of the traction force.

As such a linear propulsion system, the applicant of the present invention has proposed the registered patent No. 1504320, the registered patent No. 1372426, the registered patent No. 1313624, and the like. These are divided into a ground driving system that generates a propulsive force by controlling an armature coil on the ground according to a mounting position of a driving device, and an on-vehicle driving system that generates a driving force by controlling an armature coil on the car.

At this time, in the ground driving system, a ground driving device installed on the ground controls an armature coil installed on the ground to generate a moving magnetic field and interacts with a field installed on the vehicle to generate a propulsion force, and the on- To generate thrust force by interacting with field coil or reaction plate installed on the ground.

However, in such a conventional linear propulsion system, the structure of the armature circuit is complicated in the case of the three-phase alternating current drive system, the problem of consuming a large amount of material and the control method of the driving apparatus are complicated, There is a cooling problem.

Furthermore, since the ground driving system controls the armature coils installed on the ground by the ground driving device, it is difficult for one or more vehicles to travel in one ground coil section.

Therefore, it is difficult to shorten the running time of the vehicle by the ground driving method, and it is difficult to apply the method to a route having a short operating time such as an urban railway.

In addition, although the asynchronous induction motor system in which a reaction plate having a relatively simple structure is installed on the ground is used in the above-mentioned on-vehicle driving system, the control circuit and the control method are complicated by controlling the tertiary winding with a three- And the like.

Patent No. 1504320 Patent No. 1372426 Patent No. 1313624

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide an on-vehicle variable linear armature propulsion system that can drive a variable- And more particularly, to a linear motor propulsion system driven by a motor.

Further, the present invention is to provide a hybrid vehicle which is light in weight, improved in heat generation and cooling performance, has high acceleration / deceleration performance through non-adhesive driving characteristic, is easy to travel at a high speed and can operate several vehicles in one control section, And an object of the present invention is to provide a linear motor propulsion system driven by an on-vehicle variable armature coil capable of realizing a system.

In order to solve such a technical problem,

A two-phase secondary armature coil provided in a lower portion of the vehicle and generating an alternating magnetic field so as to generate a propulsion force of the vehicle, The linear motor propulsion system being driven by an on-vehicle variable armature coil.

At this time, the ground field coil is wound so as to be twisted at every predetermined interval along a ground orbit, and is supplied with DC power from a power conversion device to generate a stationary magnetic field.

The ground field coil is characterized by being formed of a core type or a non-core type wound around a core.

In addition, the on-vehicle armature coil is modularized into a unit unit, and a plurality of the on-vehicle armature coils are mounted on a lower portion of the vehicle.

The on-vehicle armature coil is constituted by a two-phase winding, and is arranged so that alternating voltages are applied to the respective phases to form alternating magnetic fields.

In addition, the two-phase secondary armature coil is characterized in that a DC pulse voltage is applied by a driving unit.

The driving unit may include a plurality of driving switches so that alternating voltages may be applied to the phases of the on-vehicle armature coils.

In addition, the drive switch is formed of a power semiconductor device.

The plurality of driving switches constituting the driving unit are controlled by the control unit, and the control unit receives the magnetic force sensing information generated by performing the magnetic force sensing in order to determine the switching moment of the driving switch.

Further, the secondary on-arm coils are characterized by being of a core type or a non-core type wound around a core.

According to the present invention, the generation of the dragging torque due to the complicated end turn of the conventional ground-driven linear motor and the end effect at the winding end through the driving of the two-phase secondary armature structure and the DC pulse voltage, It is possible to improve the problem caused by the use of a high switching frequency and to increase the efficiency because the driving force can be generated without the slip.

In addition, since the structure of the ground armature coil section of the conventional ground driving type linear motor system is not able to operate more than one vehicle and there is no restriction on the interval of the vehicle travel, the operation load can be freely adjusted, It can also be applied to short routes.

Further, the present invention uses a non-cohesive driving method using a driving force of a linear motor as a power source, so that it has a high acceleration / deceleration performance, a backing performance and a high-speed driving performance, and the weight and volume of the on- .

1 is a configuration diagram of a linear motor propulsion system driven by an on-vehicle variable armature coil according to the present invention.
2 is a detailed block diagram of a vehicle-mounted armature coil according to the present invention.
3 is a view showing an example of generation of an impulse force of a linear motor propulsion system driven by a variable-phase armature coil according to the invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the features of a linear motor propulsion system driven by a variable-phase armature coil according to an embodiment of the present invention will be described with reference to the accompanying drawings.

Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be interpreted in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention, and not all of the technical ideas of the present invention are described. Therefore, It should be understood that various equivalents and modifications may be present.

1 and 2, a linear motor propulsion system driven by an on-vehicle variable armature coil according to the present invention is provided in a ground track 1 on which a vehicle moves, and generates a stationary magnetic field by applying a direct current (DC) A ground field coil 100 and a two-phase secondary armature coil 200 provided below the vehicle 2 for generating an alternating magnetic field to generate a thrust force of the vehicle.

According to such a configuration, the ground-field coil 100 installed on the ground is applied with a DC voltage to form a stationary magnetic field, and a voltage is alternately applied to each of the two-phase secondary armature coils 200 installed on the vehicle Magnetic field generated by the ground-based field coil 100 on the ground and attracting force and repulsive force are generated. The attraction force and the repulsive force generated by the interaction act as driving force of the vehicle 2.

Hereinafter, the constitution of each part of the present invention will be described in detail.

The ground field coil 100 is provided along an orbit of the ground on which the vehicle 2 moves and is applied with a DC voltage to generate a stationary magnetic field.

At this time, the ground field coil 100 receives the DC power from the power conversion device 110 provided adjacent to the track, generates a stationary magnetic field, and interacts with the vehicle 2 The driving force required for driving the vehicle is generated.

When the direct current (DC) power supply is performed by the power conversion device 110, the ground field coil 100 is wound in a predetermined interval along the orbit of the ground and the magnetic field directions of neighboring sections are opposite to each other .

At this time, the ground field coil 100 may be configured as a core type or a non-core type wound around the core, and may divide an installation section of the ground field coil 100.

Further, in order to efficiently drive the ground-field coil 100, when the ground-field coil 100 enters within a certain period through an interface with the train control system, the ground-field coil 100 may be operated to apply a DC voltage.

For this purpose, the power converter 110 receives the train information as a control system of a control center or a train, and when it enters a predetermined section, it applies DC voltage to the ground armature coil 100 of the corresponding section.

On the other hand, the on-vehicle armature coil 200 is provided on the lower portion of the vehicle 2 to generate an alternating magnetic field to generate a propulsion force of the vehicle. By controlling the number of turns of the on-armature coil 200, .

The on-vehicle armature coil 200 may be modularized into a unit unit and mounted on the lower portion of the vehicle 2. By modularizing the unit, the unit can be easily replaced or repaired in units of modules of the unit .

At this time, the secondary coils 200 are composed of a plurality of two or more phases, and the armature coils constituted by the two-phase coils installed on the coils are arranged so that voltages are alternately applied to the phases to form alternating magnetic fields.

The two-phase secondary armature coil 200 has a structure in which a DC pulse voltage is applied by the driving unit 210. The driving unit 210 drives the secondary armature coil 200 to apply alternating voltages And the drive switches S1 to S6 are preferably power semiconductor devices such as IGBTs.

Of course, the on / off control of the drive switches S1 to S6 is controlled by the control unit 220 so that alternating voltages are applied to the phases of the secondary coils 200 to generate alternating magnetic fields, And generates an impelling force of the railway vehicle by an interaction with the stationary magnetic field generated in the coil 100.

In this case, a plurality of driving units 210 for driving the secondary armature coil 200 may be provided so that each phase A and phase B can be independently controlled independently.

The control unit 220 may receive magnetic force sensing information generated by performing magnetic force sensing to determine switching moments of the plurality of drive switches S1 to S6 constituting the driving unit 210. [ In this case, it is preferable that the magnetic force sensing means is provided on the vehicle, but it may be provided on the ground if necessary and the information may be wirelessly received.

In addition, the secondary on-arm coil 200 may be configured as a core-type or a non-core-type coil wound around a core.

The on-vehicle armature coil 200 and the ground field coil 100 may be composed of one or more rows.

Hereinafter, an example of the propulsive force of the linear motor propulsion system driven by the variable-phase armature coil according to the present invention will be described with reference to FIGS. 1 to 3. FIG.

First, the direct current (DC) voltage supplied by the power inverter 110 is applied to ground-based field coil 100 wound so as to be twisted at regular intervals along the earth's orbit to form a stationary magnetic field. The stationary magnetic field is formed such that the magnetic field directions of the adjacent sections alternate with each other in the S-pole and N-pole sections having polarities opposite to each other.

In this state, the on-board control unit 220 switches the plurality of drive switches S1 to S6 constituting the drive unit 210 to apply power to the on-vehicle armature coil 200 to generate an alternating magnetic field.

3, when the vehicle 2 enters the N-pole and the S-pole sections P1 and P2 of the terrestrial orbit 1, the control unit 220 of the vehicle controls the switch of the driving unit 210 (S2, S5) is turned on.

When the switches S3 and S6 of the driving unit 210 are turned on to obtain the driving force of the vehicle in this state, a voltage is applied to the secondary armature coil 200 to form the S pole, N pole, and S pole regions, The driving force is generated in the vehicle by the attractive force and the repulsive force of the fixed magnetic field of the vehicle 2 to enter the S pole, N pole, and S pole sections P1, P2, and P3 on the ground.

When the switches S1 and S6 of the driving unit 210 are turned on in the control unit 220 of the vehicle in this state, a voltage is applied to the secondary armature coil 200 to form N pole and S pole regions, The driving force is generated in the vehicle by the attractive force and the repulsive force of the fixed magnetic field of the vehicle 2 to enter the S pole and the N pole interval P2 and P3 on the ground.

When the switches S4 and S5 of the driving unit 210 are turned on by the control unit 220 of the vehicle again, voltages are applied to the secondary armature coil 200 to form N pole, S pole, and N pole regions, Propulsion force is generated in the vehicle by the attractive force and the repulsive force of the stationary magnetic field of the vehicle 100, and the vehicle 2 enters the S pole, N pole, and S pole sections P2, P3, and P4 on the ground.

Thereafter, when the switches S2 and S5 of the driving unit 220 are turned on in the control unit 210 of the vehicle, voltages are applied to the secondary armature coil 200 to form S and N pole regions, Propulsion force is generated in the vehicle by the attractive force and the repulsive force with the stationary magnetic field so that the vehicle 2 enters the N pole and S pole sections P3 and P4 on the ground.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. The scope of protection of the present invention should be construed under the following claims, and all technical ideas within the scope of equivalents thereof should be construed as being included in the scope of the present invention.

1: Orbit 2: Vehicle
100: Ground field coil 110: Power conversion device
200: coater armature coil 210:
220: control unit S1 to S6: drive switch

Claims (10)

A two-phase secondary armature coil provided in a lower portion of the vehicle and generating an alternating magnetic field so as to generate a propulsion force of the vehicle, Respectively,
The on-vehicle armature coil is modularized into a unit unit, and a plurality of the on-
The two-phase secondary armature coil is applied with a DC pulse voltage by a driving unit,
Wherein the driving unit is composed of a plurality of driving switches constituted by power semiconductor elements so as to alternately apply a voltage to each phase of the secondary armature coil,
Wherein the plurality of drive switches constituting the drive unit are controlled by the control unit, and the control unit receives the magnetic force sensing information generated by performing the magnetic force sensing to determine the switching moment of the drive switch,
The ground field coil is wound so as to be twisted at every predetermined interval along a ground orbit, receives DC power from a power conversion device to generate a stationary magnetic field,
The power conversion apparatus receives train information as a control system of a control center or a train, and when a train enters an established section, applies a DC voltage to a ground armature coil of the corresponding section,
The secondary armature coil is constituted by a two-phase winding and is arranged so that alternating voltages are applied to the respective phases to form alternating magnetic fields,
Wherein the ground field coil is constituted by a core type or a non-core type wound around a core,
Wherein the on-vehicle armature coil is constituted by a core type or a non-core type wound around a core.
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KR1020150143680A 2015-10-14 2015-10-14 Linear motor propulsion system KR101945232B1 (en)

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KR101945232B1 true KR101945232B1 (en) 2019-02-08

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Publication number Priority date Publication date Assignee Title
CN110001416A (en) * 2019-04-12 2019-07-12 上海丰滋新能源船舶科技有限公司 A kind of operation controller system device of the linear motor for vehicle

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