KR102123758B1 - Vertical-type characteristic evaluating apparatus of superconductive coil and method of evaluating the characteristics of superconductive coil using the same - Google Patents

Abstract

A vertical-type characteristic evaluating apparatus of a superconductive coil according to one embodiment of the present invention includes: a lower holder; a vertical transfer unit provided vertically on an upper surface of the holder; an armature module mounted on the vertical transfer unit and accelerating to fall; a transfer motor module driving a chain connected to upper and lower ends of the armature module; a subject module supported by a first support part and a second support part provided on the upper surface of the holder and vertically mounted to face the vertical transfer unit; and a buffer mounted on the holder corresponding to the armature module.

Description

VERTRAICAL-TYPE CHARACTERISTIC EVALUATING APPARATUS OF SUPERCONDUCTIVE COIL AND METHOD OF EVALUATING THE CHARACTERISTICS OF SUPERCONDUCTIVE COIL USING THE SAME}

The present invention relates to an apparatus for evaluating vertical characteristics of a superconducting coil and a method for evaluating characteristics using the same, and more specifically, to an apparatus for evaluating vertical characteristics of a superconducting coil provided in a vertical shape by minimizing the scale of the apparatus and a method for evaluating characteristics using the same. It is about.

In general, superconducting motors can use a superconductor with zero electrical resistance instead of copper wires used in conventional rotors to generate high current and high magnetic fields, thereby removing weight, volume, and various losses by removing the iron core used in the stator and rotor. Refers to a high-performance, high-power, advanced motor that has significantly reduced.

The superconducting field coil used in the superconducting motor developed so far is formed by winding a tape-like superconducting wire in a wound ray-stretched or pancake coil shape, and several coils as described above are obtained to obtain a desired magnetic field and strength. Laminated to form a superconducting field coil of a single pole, and connected to two poles, four poles, 12 poles, 24 poles, or more.

Currently, superconducting motors or generators are one of the representative and active research and development areas in the field of power devices that use superconductors. As technology advances, superconducting motors are gradually increasing in capacity, and accordingly superconducting coils are also highly magnetic. And it is becoming a large current.

1 shows a superconducting rotator including a superconducting coil.

FIG. 1(a) is a perspective view of the superconducting rotator used in a power device as a whole, and (b) is an enlarged view of a dotted portion of the superconducting rotator. The superconducting rotator accommodates a rotor body having a predetermined radius around a rotation axis, a plurality of superconducting coils (HTS coil) disposed at predetermined intervals on the outer surface of the rotor, and each superconducting coil on the outer surface of the rotor Cryostat to be used, stator body having a radius separated by a predetermined distance (air gap) from the rotating body, a plurality of armature coils (Armature Coil) arranged to be inserted at predetermined intervals on the inner surface of the stator , Includes a magnetic shield layer surrounding the outer surface of the stator.

The superconducting rotor as illustrated has a problem in that a superconducting coil is vulnerable to a force generated from the coil or an external force due to high magnetic field and large current, and in the case of a large-capacity rotor, it is difficult to apply a conventional rotor design.

In addition, the period studied and the accumulated technology are relatively low compared to general phase-conducting generators, so the research and development period is slow, especially because of the cost risk using expensive superconductors and the design production process that has not been optimized yet. It is difficult to manufacture superconducting generators.

Therefore, before applying to a large-capacity superconducting rotator, there is a need for a device for evaluating the design results of the motor and the generator and the performance of the superconducting coil at the design stage.

Registered Patent No. 10-1420732

An object of the present invention is to minimize and implement the performance evaluation device of a superconducting motor designed before manufacturing the entire system of a superconducting rotator vertically.

Another object of the present invention is to provide a property evaluation method using a vertical property evaluation device for a superconducting coil designed before manufacturing the entire system of a superconducting rotator.

The objects of the present invention are not limited to the objects mentioned above, and other objects not mentioned will be clearly understood by those skilled in the art from the following description.

In order to solve the above-mentioned problems, the vertical property evaluation device of the superconducting coil according to an embodiment of the present invention includes a lower stand; A vertical transfer part provided vertically on the upper surface of the cradle; An armature module mounted on the vertical transfer part to accelerate and fall; A transfer motor module driving a chain connected to upper and lower ends of the armature module; A subject module supported by the first support portion and the second support portion provided on the upper surface of the cradle and vertically mounted to the vertical transfer portion; And a buffer buffer mounted on the cradle corresponding to the armature module.

In the apparatus for evaluating the vertical characteristics of a superconducting coil according to an embodiment of the present invention, the cradle further comprises a buffer groove for accommodating the buffer buffer.

In the apparatus for evaluating vertical characteristics of a superconducting coil according to an embodiment of the present invention, the transfer motor module is characterized by driving the chain in the forward or reverse direction along with two rollers provided at the top and a roller at the bottom.

In the apparatus for evaluating vertical characteristics of a superconducting coil according to an embodiment of the present invention, the vertical transfer part and the subject module are spaced apart at a predetermined interval corresponding to the air gap of the designed superconducting rotator.

In an apparatus for evaluating vertical characteristics of a superconducting coil according to an embodiment of the present invention, the vertical transfer part includes a guide rail engaged with the armature module on a side surface, and a plurality of bearings provided between the guide rail and the armature module. It is characterized by including.

Alternatively, a method for evaluating the characteristics of a vertical characteristic evaluation device of a superconducting coil according to another embodiment of the present invention includes: (A) preparing an armature module in a standby state mounted on an upper side of a vertical transfer unit; (B) the armature module is accelerated to fall along the guide rail of the vertical transfer part by the transfer motor module; And (C) braking the armature module with a buffer buffer.

In the method for evaluating the characteristics of the vertical property evaluation device for a superconducting coil according to another embodiment of the present invention, step (B) is performed by driving the chain connected to the armature module in the reverse direction to the armature module. It is characterized by accelerated dropping.

In the method for evaluating the characteristics of the vertical characteristics evaluation device of the superconducting coil according to another embodiment of the present invention, step (B) is performed as the armature module faces the subject module spaced apart at a predetermined interval from the vertical transfer part and accelerates and falls. It is characterized by measuring the electromagnetic force torque generated in the superconducting coil of the subject.

In the method for evaluating the characteristics of the vertical characteristic evaluation device for a superconducting coil according to another embodiment of the present invention, the reverse rotational force of the transfer motor module falls at a speed corresponding to the rated speed (V _r ) of the superconducting rotor designed by the armature module It is characterized by being adjusted to.

According to the apparatus for evaluating vertical characteristics of a superconducting coil of the present invention, the armature is reduced by using a transfer motor and a chain, thereby reducing the moving section of the armature and minimizing the scale of the apparatus.

According to the apparatus for evaluating vertical characteristics of a superconducting coil of the present invention, it is possible to check performance of a superconducting coil of a subject, whether it is damaged, and parameters.

According to the apparatus for evaluating vertical characteristics of a superconducting coil of the present invention, it is possible to verify a generator design result through an armature torque and an output waveform corresponding to the generator 2 pole.

In addition, according to the vertical property evaluation device of the superconducting coil of the present invention, it is possible to verify the design of each designed superconducting coil without making an entire system, thereby reducing manufacturing time and development cost.

Therefore, in the present invention, before fabricating the entire system of the designed superconducting motor or generator, the design verification and characteristic parameters of the designed superconducting generator are secured by using a part module of the designed generator and a device that simulates the environment in which the actual superconducting generator is operated. It is possible to provide an apparatus for evaluating characteristics that can be performed.

1 shows a superconducting rotator including a superconducting coil.
2 is a conceptual diagram illustrating a structure between a subject superconducting coil and an armature module according to embodiments of the present invention.
3 is a conceptual diagram illustrating an operation between a subject superconducting coil and an armature module according to embodiments of the present invention.
4 is a detailed illustration of a subject module of a vertical property evaluation device according to embodiments of the present invention.
5 is a sectional view showing an initial operation state of an apparatus for evaluating vertical characteristics of a superconducting coil according to an embodiment of the present invention.
6 is a sectional view showing an initial operation state of a vertical property evaluation device of a superconducting coil according to another embodiment of the present invention.

Hereinafter, specific contents for carrying out the present invention with reference to the drawings will be described based on examples. These embodiments are described in detail enough to enable those skilled in the art to practice the present invention. It should be understood that the various embodiments of the invention are different, but need not be mutually exclusive. For example, the specific shapes, structures, and properties described herein can be implemented in other embodiments without departing from the spirit and scope of the invention in relation to one embodiment. In addition, it should be understood that the location or placement of individual components within each disclosed embodiment can be changed without departing from the spirit and scope of the invention. Therefore, the following detailed description is not intended to be taken in a limiting sense, and the scope of the present invention is limited only by the appended claims, along with all ranges equivalent to those claimed by the claims, if appropriately described. In the drawings, similar reference numerals refer to the same or similar functions across various aspects.

Unless otherwise defined, all terms (including technical and scientific terms) used in this specification may be used in a sense that can be commonly understood by those skilled in the art to which the present invention pertains. Also, terms defined in the commonly used dictionary are not ideally or excessively interpreted unless explicitly defined.

In this specification, a superconducting coil whose design is secured for testing rather than a superconducting coil of a superconducting rotator is referred to as a subject superconducting coil.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings in order to enable those skilled in the art to easily implement the present invention.

FIG. 2 is a conceptual diagram for explaining the structure between a subject superconducting coil and an armature module according to embodiments of the present invention, and FIG. 3 illustrates an operation between a subject superconducting coil and an armature module according to embodiments of the present invention. It is a conceptual diagram for.

In the present invention, before manufacturing the entire system of the superconducting rotator as shown in FIG. 1, the performance of the designed superconducting generator is verified by using a partial module of the designed superconducting generator and a characteristic evaluation device that simulates an environment in which the actual superconducting rotator is operated. And characteristic parameters.

2, the superconducting coil used for the superconducting rotator is designed to test the superconducting coil.

The subject superconducting coil 410 is a superconducting coil corresponding to 3 poles of a superconducting rotator having a design result secured in one embodiment. The subject superconducting coil 410 may be embodied as, for example, a race track shape, but the shape is not limited thereto, and may be implemented in other forms as long as it is an actual shape accommodated in the superconducting rotator. The subject superconducting coil 410 may include three race track-shaped superconducting coils to realize 3 poles, and may be implemented as 1 pole or 2 poles according to performance evaluation conditions.

The apparatus for evaluating the characteristics of the present invention may include an armature 210 that intersects to check the performance of the subject superconducting coil 410. The test armature module 210 is similar to the armature form of the superconducting rotator shown in FIG. 1.

The armature module 210 includes a stator 211, an armature coil 213, and a magnetic shielding layer 215. The armature coil 213 is inserted and arranged at a predetermined equal interval on one side of the stator that faces the subject superconducting coil, and the magnetic shielding layer 215 is formed to surround the other side of the stator that does not face the subject superconducting coil.

The superconducting coil corresponding to 3 poles as shown in FIG. 3 is located adjacent to both sides of the first superconducting coil and the first superconducting coil corresponding to 1 pole of the superconducting rotator with secured design results, and the superconducting rotator with secured design results It includes two second superconducting coils corresponding to 2 Pole of.

The armature module 210 is spaced apart by a predetermined distance from the subject superconducting coil 410 and moves at a rated speed in a direction parallel to one surface of the subject superconducting coils 410. At this time, the rated speed is set as the speed in the environment in which the actual superconducting rotator is operated.

Therefore, when the armature module 210 moves over the subject superconducting coil at the rated speed, the electromagnetic force torque of the N pole is generated in the first direction in the first superconducting coil, and the electromagnetic force torque of the S pole is generated in the second direction in the second superconducting coil. .

The performance evaluation apparatus of the present invention can detect the presence or absence of damage to the subject superconducting coil 410 by sensing the electromagnetic force torque generated while the armature module 210 intersects the subject superconducting coil 410.

4 is a diagram specifically showing a subject module of a vertical property evaluation apparatus according to embodiments of the present invention.

Referring to FIG. 4, the subject module 400 includes a cooling part 430 and a support part composed of a subject superconducting coil 410, a cryostat 420, a cooling plate 431, and an insulating plate 432. 440.

The subject superconducting coil 410 may include at least one superconducting coil according to a performance evaluation environment. In the embodiment shown in FIG. 4, three superconducting coils 411, 412, and 413 are included for evaluating the performance of three poles, and are arranged on a plane at a predetermined interval between each superconducting coil.

The cooling plate 431 is for cooling the subject superconducting coil and is disposed under the subject superconducting coils 411, 412 and 413. Although not specifically shown, a structure in which a refrigerant is supplied may be further included.

The cryostat 420 cools the subject superconducting coil at cryogenic temperature using a separate cooling system while receiving the subject superconducting coil 410 in a vacuum state.

The insulating plate 432 is located between the cryostat 420 and the cooling plate 431 to block heat transfer from the outside.

The subject support part 440 is connected to the first support part 521 to support the subject module 400 at a predetermined height from the cradle 500.

5 is a sectional view showing an initial operation state of an apparatus for evaluating vertical characteristics of a superconducting coil according to an embodiment of the present invention. 6 is a sectional view showing an initial operation state of a vertical property evaluation device of a superconducting coil according to another embodiment of the present invention.

First, referring to FIG. 5, the structure of the vertical property evaluation device of the superconducting coil according to an embodiment of the present invention will be described. A vertical conveying part provided vertically on the lower cradle 500 and the upper surface of the cradle 500 ( 310, the armature module 210 that is mounted on the vertical transfer unit 310 to accelerate and fall, and the chain 171 connected to the upper and lower ends of the armature module 210 together with the upper rollers 121 and 122 and the lower roller 123. ) Is supported by the transfer motor module 100, the first support portion 521 and the second support portion 522 provided on the upper surface of the cradle 500, the subject module mounted vertically facing the vertical transfer portion It includes a buffer buffer 151 mounted on the upper portion of the cradle 500 corresponding to the 400 and the armature module 210.

Specifically, the transfer motor module 100 is provided on one side of the upper surface of the cradle 500, the two rollers (121,122) provided on the upper and the lower roller 123 provided on the upper surface of the cradle 500 After that, the chain 171 connected to the upper and lower ends of the armature module 210 is driven. At this time, the transfer motor module 100 may be driven in the forward direction to mount the armature module 210 to a predetermined height along the rail of the vertical transfer unit 310, and drive in the reverse direction to move the rail of the vertical transfer unit 310. Accordingly, the armature module 210 falling down is pulled down to accelerate at the rated speed. Here, although referred to as chain 171, it will be said that it includes all of the inflexible connecting members such as wires and ropes.

The vertical transfer unit 310 includes a guide rail engaged with the armature module 210 on a side surface and a plurality of bearings (Bearing: 315) provided between the guide rail and the armature module 210, and is provided on the upper surface of the cradle 500. It is provided vertically.

The guide rail of the vertical transfer unit 310 is provided to mesh with the armature module 210 to stably drop the armature module 210. The plurality of bearings 315 are provided at regular intervals along the guide rail to reduce friction between the guide rail and the armature module 210 to cause the armature module 210 to drop at a high speed. Of course, it is referred to as a plurality of bearings 315, but is not limited thereto, and other rotating structures capable of reducing friction may be applied, for example, rollers.

As described above, the subject module 400 includes a cooling part 430 and a subject support part 440 composed of a subject superconducting coil 410, a cryostat 420, a cooling plate 431, and an insulating plate 432. ).

The subject superconducting coils 411, 412 and 413 include at least one superconducting coil as described in FIG. Between the superconducting coils may be arranged at the same distance as the rotor of the superconducting generator. As illustrated, the superconducting coil corresponding to 3 Pole is located adjacent to both sides of the first superconducting coil and the first superconducting coil corresponding to 1 Pole of the superconducting rotator with secured design results, and the 2 Pole of the superconducting rotator with secured design results It includes two second superconducting coils.

According to one embodiment, the second superconducting coil may be disposed on the same plane as the first superconducting coil, or may be disposed at equal intervals on the curved surface of the same angle as the rotor of the entire superconducting generator according to another embodiment.

According to an embodiment, the first superconducting coil 412 and the second superconducting coils 411 and 413 directly cross-link the armature module 210 to generate the same magnetic flux, respectively.

Alternatively, according to another embodiment, the first superconducting coil 412 directly crosses the armature module 210 to generate a magnetic flux, and the second superconducting coils 411 and 413 are magnetic fields generated by the first superconducting coil 412 It can serve to supplement the size of the magnetic field so that a magnetic field having the same size as the design value can be generated.

The cryostat 420 may be provided in an enclosed structure to minimize cooling loss by blocking a heat transfer by convection and radiation by configuring a vacuum environment therein. In order to maximize the efficiency of conduction cooling, it is desirable to maintain the vacuum level inside the vacuum container at 10 ^-5 torr or less, and it is preferable to block heat transfer by convection and radiation inside using MLI (Multi layer insultion). .

The cooling unit 430 is a structure composed of a cooling plate 431 and an insulating plate 432, and is a structure for cooling the subject superconducting coils 411, 412 and 413. At this time, the cooling unit 430 receives the low-temperature refrigerant from a separate cooling system, circulates along the refrigerant pipe installed therein, flows into the cooling system again, and re-condenses, and is re-introduced into the cooling plate 431 do.

Insulating plate 432 is a cooling plate 431 and cryostat 420 to prevent the cooling plate 431 cooled to cryogenic cooling the cryostat 420 in addition to the subject superconducting coils 411,412,413. Can be located in between.

The subject support 440 is a plate-shaped member and is connected to the first support 521 provided in an inclined frame structure on the upper surface of the cradle 500 to pass through the subject module 400 of the cradle 500 It is fixed to a certain height from the top surface. At this time, the subject module 400 is supported by the lower portion by the second support portion 522 provided on the upper surface of the cradle 500.

The thus configured subject module 400 is spaced at a set interval to the vertical transfer part 310, that is, the set interval at which the subject superconducting coils 411, 412,413 and the armature module 210 are spaced apart by the air gap of the superconducting rotor designed. It can be spaced apart and arranged in parallel.

The armature module 210 mounted on the vertical transfer unit 310 with respect to the subject module 400 is pulled down by the transfer motor module 100 and accelerated to fall at the rated speed V _r along the guide rail. .

Alternatively, as another embodiment of the present invention, as shown in FIG. 6, a vertical property evaluation device having a groove 510 accommodating the buffer buffer 151 on the cradle 500 may be implemented.

The groove portion 510 is formed on the upper portion of the cradle 500 to a depth corresponding to the remaining length except for the stroke length to withstand the impact of the armature module 210 from which the buffer buffer 151 falls at the entire height of the buffer buffer 151. do.

By receiving the buffer buffer 151 in the groove portion 510 in this way, the vertical property evaluation device of the superconducting coil according to another embodiment of the present invention can reduce the height of the entire device, thereby saving installation space.

Driving method

Referring to Figures 5 and 6 will be described the driving of the vertical characteristics evaluation device of the superconducting coil according to an embodiment of the present invention.

In the initial driving state, the armature module 210 is prepared in a standby state mounted at a predetermined height on the upper portion of the vertical transfer unit 310 by the transfer motor module 100.

At this time, by driving the transfer motor module 100 in the reverse direction, the armature module 210 is accelerated and dropped by the reverse rotational force of the transfer motor module 100 together with the free fall of gravity acceleration at the upper portion of the vertical transfer unit 310. .

The reverse rotational force of the transfer motor module 100 is adjusted so that the armature module 210 falls at a speed corresponding to the rated speed V _r of the superconducting rotor designed when the subject module 400 faces and falls.

When the armature module 210, which is accelerated and dropped in this way, faces the subject module 400 and falls at the rated speed V _r , the subject module 400 applies the electromagnetic force torque generated by the subject superconducting coils 411, 412,413. By measuring, it is possible to grasp the performance, damage, and parameters of the subject superconducting coils 411, 412, and 413.

Subsequently, the armature module 210 dropped at the rated speed V _r is braked by touching the buffer buffer 151 provided in the upper portion or the groove portion 510 of the cradle 500.

Therefore, according to the apparatus for evaluating the vertical characteristics of the superconducting coil of the present invention, the armature module 210 is accelerated and dropped along with the gravitational acceleration using a transfer motor and chain to reduce the moving section of the armature module 210 to reduce the device scale. It can be minimized.

According to the apparatus for evaluating vertical characteristics of a superconducting coil of the present invention, it is possible to verify a generator design result through an armature torque and an output waveform corresponding to the generator 2 pole.

In addition, according to the vertical property evaluation device of the superconducting coil of the present invention, it is possible to verify the design of each designed superconducting coil without making an entire system, thereby reducing manufacturing time and development cost.

Therefore, in the present invention, before fabricating the entire system of the designed superconducting motor or generator, design verification and characteristic parameters of the designed superconducting motor are secured by using a device that simulates an environment in which the subconductor of the designed motor and an actual superconducting motor are operated. It is possible to provide a vertical property evaluation device capable of.

It should be noted that although the technical idea of the present invention has been specifically described according to the preferred embodiment, the above-described embodiments are for the purpose of explanation and not for the limitation.

In addition, a person skilled in the art of the present invention will understand that various implementations are possible within the scope of the technical idea of the present invention.

100: transfer motor module 121,122,123: roller
151: buffer buffer 171: chain
210: armature module 310: vertical transfer unit
315: bearing 400: subject module
411, 412, 413: Subject superconducting coil 420: cryostat
430: cooling unit 431: cooling plate
432: Insulation plate 440: Subject support
510: groove 500: holder
521: first support 522: second support

Claims (9)

Lower cradle;
A vertical transfer part provided vertically on the upper surface of the cradle;
An armature module mounted on the vertical transfer part to accelerate and fall;
A transfer motor module that drives the chains connected to the upper and lower ends of the armature module in the forward and reverse directions using a single motor;
A subject module supported by the first support portion and the second support portion provided on the upper surface of the cradle and vertically mounted to the vertical transfer portion; And
A buffer buffer mounted to the cradle corresponding to the armature module;
It includes,
A device for evaluating vertical characteristics of a superconducting coil, wherein the armature module evaluates the characteristics of the superconducting coil by sensing the electromagnetic force torque generated by crossing the superconducting coil.
The apparatus for evaluating vertical characteristics of a superconducting coil according to claim 1, wherein the cradle further comprises a buffer groove for accommodating the buffer buffer.
The apparatus for evaluating vertical characteristics of a superconducting coil according to claim 1, wherein the transfer motor module drives the chain in the forward or reverse direction along with two rollers provided at the top and a roller at the bottom.
The apparatus for evaluating vertical characteristics of a superconducting coil according to claim 1, wherein the vertical transfer part and the subject module are spaced at a predetermined interval corresponding to the air gap of the designed superconducting rotator.
The bearing according to claim 1, wherein the vertical transfer part is provided between a guide rail engaged with the armature module on a side surface, and a plurality of bearings provided between the guide rail and the armature module to reduce friction between the guide rail and the armature module. ) Characterized in that it comprises a superconducting coil vertical property evaluation device.
(A) preparing the armature module in a standby state mounted on the upper side of the vertical transfer unit;
(B) accelerating and dropping the armature module along the guide rail of the vertical transfer part by a transfer motor module composed of one motor capable of driving in the reverse and forward directions;
(C) The armature module and the subject module intersect the electromagnetic force torque generated by using a strain gauge to detect displacement and generated stress, and the armature module and the subject module through the Hall sensor and temperature sensor attached to the superconducting coil. Evaluating the characteristics of the subject module as to how the influence on the electromagnetic force torque generated by crossing influenced the magnetic field and temperature on the superconducting coil; And
(D) braking the armature module with a buffer buffer;
Characteristic evaluation method of the vertical property evaluation device of a superconducting coil comprising a.
7. The apparatus for evaluating vertical characteristics of a superconducting coil according to claim 6, wherein in step (B), the transfer motor module drives the chain connected to the armature module in the reverse direction to accelerate and drop the armature module downward. How to evaluate the characteristics of the.
delete The apparatus for evaluating vertical characteristics of a superconducting coil according to claim 7, wherein the reverse rotational force of the transfer motor module is adjusted to drop at a speed corresponding to the rated speed (V _r ) of the superconducting rotor in which the armature module is designed. How to evaluate the characteristics of the.

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