KR20230011800A - Energy storage system and control method for the same - Google Patents

Abstract

The present invention relates to an energy storage system and a control method thereof, generating power from the potential energy generated by stacking weights using surplus power to store the weights as potential energy and then causing the weights to fall freely. The energy storage system includes: a plurality of blocks; a storage unit including a first storage location and a second storage location where the blocks are arranged, wherein the first storage location is formed at a higher position than the second storage location; and a power generation device generating or storing power by moving the blocks from the first storage location to the second storage location or from the second storage location to the first storage location. By such configuration, power can be generated by stacking blocks, stacked on the ground, under the ground, which has the effect of stably maintaining the stacked blocks without being affected by exposure to the environment.

Description

Energy storage system and its control method {ENERGY STORAGE SYSTEM AND CONTROL METHOD FOR THE SAME}

The present invention relates to an energy storage system and a control method thereof, and more particularly, to energy storage that generates power with potential energy generated by stacking weights using surplus power and storing it as potential energy, and then freely falling the weight. It is about the system and its control method.

Efforts have been made to save fossil fuels or to apply renewable energy to more fields by improving use efficiency in order to solve problems of depletion of fossil fuels and environmental pollution.

Renewable energy sources such as solar and wind power are being used more efficiently than ever before, but these sources are intermittent and unpredictable. These characteristics limit reliance on these energy sources, and the share of renewable energy sources in primary power sources is currently very low.

As an alternative to this, there is an energy storage technology using gravity that can be used when necessary after storing large-scale power energy. Among the energy storage technologies using gravity, there is a pumped-storage power generation technology that is currently being used.

Pumped-storage power generation is a hydropower storage technology that uses the drop of mountains and rivers on land to pump water from rivers into reservoirs at the top of mountains and releases it when necessary to generate electricity.

However, pumped-storage power generation has limitations in its development location, and to solve this problem, various gravity-using energy storage technologies such as tower type, mountain type, and rail type have been proposed.

1 is a diagram schematically showing a state in which a conventional tower-type energy storage system using gravity operates.

Referring to FIG. 1, in the conventional tower-type energy storage technology using gravity, a heavy block 20 is lifted and stacked (charging part) with surplus power using a tower crane 10 for construction. And, when electricity is needed, it is a technology that generates power (discharging part) by lowering the block 20.

This tower-type energy storage technology has an advantage of having no location restrictions compared to other technologies using gravity.

However, it is necessary to install a crane with a height of about 160m or more, and when using an existing commercial tower crane, it is necessary to improve the utilization rate by 4 to 5 times compared to the operating time, so there is a disadvantage in that the development cost and maintenance cost of the tower crane are high.

In addition, for energy storage, as shown in FIG. 1, when the blocks 20 are stacked, when the blocks 20 of 1m ³ and 35 tons in size are stacked up to 160m, environmental effects such as wind resistance and earthquake resistance When the stacked blocks 20 collapse, there is a safety problem that can cause a large accident.

Furthermore, since the position must be precisely controlled in units of several mm in order to precisely laminate the blocks 20, there is a problem in that system efficiency is lowered due to the high difficulty of developing precise position control and the addition of energy consumed by applying it. .

Patent Publication No. 2021-0065929 (2021.06.04)

The present invention was invented to solve the above problems, and an energy storage system capable of stably maintaining the stacked blocks without being affected by the environment by generating power by stacking blocks stacked on the ground in the ground, and the same Its purpose is to provide a control method.

In addition, the present invention is an energy storage system that has a plurality of storage units for generating or storing power and can produce or store energy by moving from one storage unit to another, thereby easily adjusting the energy storage capacity. And its purpose is to provide a control method.

In addition, the present invention automatically controls generation or storage of power in one storage unit, and automatically moves to another storage unit when generation or storage of power in one storage unit is completed to generate power. It is an object of the present invention to provide an energy storage system and a control method capable of easily adjusting the energy storage capacity automatically by controlling the energy storage capacity.

In order to achieve the above object, an energy storage system according to a preferred embodiment of the present invention includes a plurality of blocks; a storage unit including a first storage location and a second storage location where the block is disposed, wherein the first storage location is higher than the second storage location; and a generator for generating or storing electric power by moving the block from the first storage location to the second storage location or from the second storage location to the first storage location.

Here, the storage unit may be formed such that the first storage location is formed on the ground and the second storage location is formed on the ground.

The first storage location may be formed outside the second storage location in a circular shape having a diameter at least 1.5 times greater than that of the second storage location.

In addition, the storage unit is configured such that a stacking height of the plurality of blocks disposed in the second storage location is at least twice greater than a stacking height of the plurality of blocks disposed in the first storage location and stacked at the first storage location and the first storage location. It may be formed by setting the area of the second storage location and the underground depth of the second storage location.

The generator moves the blocks stacked in the first storage location to the second storage location to produce power corresponding to kinetic energy by free fall, and transfers the blocks stacked in the second storage location to the first storage location. It may be moved to a storage location and stacked to store power corresponding to potential energy.

And, the generator may be configured to operate to simultaneously or sequentially move at least one pair of blocks facing each other among a plurality of blocks radially arranged in the first storage location or the second storage location.

More specifically, the generator may include a base frame disposed on the storage unit and provided with a moving unit to rotate on the storage unit; a trolley rail provided on the base frame; a trolley movably coupled to the trolley rail and moving between the first storage location and the second storage location; a regenerative driving unit provided on the trolley, generating electric power when rotated in a first direction, and rotating in a second direction when power is applied; a clamper for clamping the block; and a cable connecting between the regenerative drive unit and the clamper and moving the clamper in a height direction while being wound or unwound by rotation of the regenerative drive unit.

Here, the trolley is provided as a pair and is disposed on both sides of the trolley rail, and among a plurality of blocks radially arranged in the first storage location or the second storage location, a pair of blocks facing each other are simultaneously or sequentially It can act to move.

And, the movable unit rotates so that the trolley rail is positioned from an upper portion of any one block among a plurality of blocks radially disposed in the first storage location or the second storage location to an upper portion of a block adjacent thereto. can

In addition, the trolley rail is provided in plurality and is radially fastened to the base frame, and among a plurality of blocks radially disposed in the first storage location or the second storage location, a pair of blocks facing each other are simultaneously or sequentially It can operate to move a plurality of them.

The clamper may be configured to detach the block with an electromagnet or grip and clamp the block.

In the energy storage system according to an embodiment of the present invention, a plurality of blocks disposed at the same height in the first storage location may be stacked at least two stories high in the second storage location.

Also, any one block among a plurality of blocks disposed at the same height in the first storage location and blocks adjacent thereto may be stacked to cross each other at different heights in the second storage location.

Here, the block is provided in a trapezoidal shape, so that both side surfaces inclined are spaced apart from each other at the first storage position and in contact with the side surface of the neighboring block at the second storage position. there is.

For example, the block may include a protrusion protruding outward from the first side surface; and a receiving groove inserted inwardly from the second side surface into which the protrusion of another block is inserted.

At this time, at least one or more of the plurality of blocks stacked at the same height may be formed such that the receiving groove is formed but the protrusion is not formed.

Here, the block on which the protrusion is not formed may be disposed last at the same stacking height when the block is disposed in the second storage position.

With this configuration, the block is formed so that the protrusion does not interfere with a neighboring block in a state of being disposed in the first storage position, and the protrusion is formed in a receiving groove of a neighboring block in a state of being disposed in the second storage position. It may be made to be formed to be inserted into.

As another example, the block may include: a first block having an inclined surface inclined downward toward both sides of the moving direction; and a second block having inclined surfaces inclined upward toward both sides of the moving direction.

With this configuration, in the first storage location, the first block and the second block are radially arranged alternately, and at the second storage location, the first block is radially arranged, and then the second block is radially arranged. It may be made to be radially stacked so that the inclined surface of the second block is seated on the inclined surface of the first block.

In addition, the energy storage system according to an embodiment of the present invention may include a power supply source installed in the ground to store power and a power system electrically connecting the generator.

In the power system, when power corresponding to kinetic energy is generated by moving blocks stacked in the first storage location to the second storage location, the generated power may be transferred to the power supply source for storage.

And, the power system receives power from the power supply source to operate the regenerative driver when the block stacked in the second storage location is moved to the first storage location to store power corresponding to potential energy. It can be made to deliver power.

In addition, the power system may include a connection portion provided in plurality and spaced apart from each other radially and installed on the ground.

Here, the connecting part may be electrically connected to the trolley when the trolley rail is positioned at a position to move blocks stacked in the first storage location or the second storage location.

And, an underground cable provided to electrically connect the power supply source and an external power supply source, and supply the power stored in the power supply source to the power supply source or supply the power stored in the power supply source to the power supply source. It can be done by

And, the energy storage system according to a preferred embodiment of the present invention in order to achieve the above object, a plurality of blocks; a plurality of storage units spaced apart from each other and including a first storage location and a second storage location lower than the first storage location; and generating or storing power by moving the block from the first storage location to the second storage location or from the second storage location to the first storage location, and generating or storing power in any one storage unit is completed. When it is moved to another storage unit to generate or store power generation device; may be made including.

More specifically, the generator may include a base frame disposed on the storage unit; a trolley rail provided on the base frame; a trolley movably coupled to the trolley rail and moving between the first storage location and the second storage location; a regenerative driving unit provided on the trolley, generating electric power when rotated in a first direction, and rotating in a second direction when power is applied; a clamper for clamping the block; a cable connecting the regenerative driver and the clamper and moving the clamper in a height direction while being wound or unwound by rotation of the regenerative driver; And a moving unit provided in the base frame, rotating on one storage unit when generating or storing power, and moving to another storage unit when generation or storage of power is completed in one storage unit; including It can be done.

Further, the energy storage system according to an embodiment of the present invention includes a rotating rail arranged in a circular shape along the circumference of the storage unit and guiding the moving unit to rotate on the storage unit; and a moving rail connecting the rotating rails provided in each of the plurality of storage units and guiding the moving unit to move from one storage unit to another storage unit.

In addition, a position sensor for recognizing which storage unit is located when the generator is located in any one of the plurality of storage units; And a block sensor for measuring the height of the blocks stacked in the first storage location or the second storage location when the generator is located in any one of the plurality of storage units.

Furthermore, it may include; a control unit for controlling the operation of the generator in response to the case of generating power by receiving data from the position sensor and the case of storing power by receiving data from the block sensor.

With this configuration, the control unit controls the moving unit to control the moving unit when it is determined that all the blocks stacked in the first storage location are stacked in the second storage location in any one storage unit when power needs to be generated. It can be made to move to one storage unit.

Further, when the control unit needs to store power, if any one storage unit recognizes that all the blocks stacked in the second storage location are stacked in the first storage location, the control unit controls the moving unit to store another one. It can be made to move to the storage unit.

Furthermore, the power generation device of the energy storage system according to an embodiment of the present invention may be provided in plural and disposed at different positions in the plurality of storage units, and generate or store power while moving so as not to interfere with each other. .

In order to achieve the above object, a control method of an energy storage system according to a preferred embodiment of the present invention is a block stacked on a first storage location formed on the ground by free fall moving a block to a second storage location formed on the ground. A power generation step of generating power corresponding to the kinetic energy by rotating the regenerative driving unit; and a power storage step of raising the plurality of blocks stacked in the second storage location by applying power to the regenerative drive unit and then stacking the blocks in the first storage location to store power corresponding to the potential energy. can

More specifically, the power generation step may include: a first clamping step of clamping the stacked blocks in the first storage location; a first moving step of moving the block from the first storage location to the second storage location; a descending step of free-falling the block to the second storage location; and a first return step of releasing the clamping of the block and returning to the first storage location.

Then, the plurality of blocks are arranged radially, and a first rotation step of rotating to the position of a second neighboring block after returning to the first storage location; and a first stacking height measuring step of measuring stacking heights of the blocks stacked in the first storage location.

At this time, in the first clamping step, when it is determined that there is a block of the same height when rotating to the position of the second neighboring block after returning to the first storage position, the block stacked at that position may be clamped. there is.

And, in the first rotation step, if it is determined that there is no block of the same height when rotating to the position of the second neighboring block after returning to the first storage position, rotate to the position of the neighboring block first. It can be done.

In the first clamping step, a pair of blocks facing each other among a plurality of blocks radially arranged in the first storage position are clamped simultaneously or sequentially.

In addition, the control method of the energy storage system according to an embodiment of the present invention may include a second stack height measurement step of measuring stack heights of blocks stacked in the second storage location.

In this case, in the lowering step, after calculating the lowering height from the stacking height of the blocks stacked in the second storage location, the block may be free-falled by a corresponding height.

In the power generation step, any one block among a plurality of blocks disposed at the same height in the first storage location and blocks adjacent thereto may be stacked by crossing each other at different heights in the second storage location.

The power storage step may include a second clamping step of clamping the stacked blocks in the second storage position; a raising step of raising the block to a stacking height at the first storage location; a second moving step of moving the block from the second storage location to the first storage location; and a second return step of releasing the clamping of the block and returning to the second storage location.

Then, a plurality of the blocks are arranged radially, and a second rotation step of rotating to the position of the first neighboring block after returning to the second storage location; and a second stacking height measuring step of measuring stacking heights of the blocks stacked in the second storage location.

At this time, the second clamping step may be performed to clamp the stacked blocks at the position when it is determined that there is a block of the same height when the first rotation is performed to the position of the neighboring block after returning to the second storage position. there is.

And, in the second rotation step, when it is determined that there is no block of the same height when first rotated to the position of the neighboring block after returning to the second storage position, the rotation is between the return position and the position of the neighboring block. can be done to

The second clamping step may be performed to simultaneously or sequentially clamp a pair of blocks facing each other among a plurality of blocks radially arranged in the second storage location.

And, in order to achieve the above object, a control method of an energy storage system according to a preferred embodiment of the present invention is a free fall movement in which blocks stacked on a first storage location formed on the ground are moved to a second storage location formed on the ground. A power generation step of generating power corresponding to the kinetic energy by rotating the regenerative drive unit by; a power storage step of raising the plurality of blocks stacked in the second storage location by applying power to the regenerative drive unit and stacking the blocks in the first storage location to store power corresponding to potential energy; and a storage unit moving step of providing a plurality of storage units including the first storage location and the second storage location, and moving the storage unit to another storage unit when generation or storage of electric power is completed in one storage unit. can

Here, the power generating step may include a first stacking height measuring step of measuring stacking heights of blocks stacked in the first storage location; and moving the first storage unit to another storage unit when it is determined that there is no block in the first storage location of one storage unit.

In the power generation step, the power generation completion state storage step of storing the power generation completion state when the locations of the plurality of storage units are stored and the power generation is completed in one of the plurality of storage units. can be made including

In this way, when power generation is required, the location of a storage unit that has not reached a power generation completion state among the plurality of storage units may be identified and then moved to proceed with the power generation step.

The power storage step may include a second stacking height measuring step of measuring stacking heights of blocks stacked in the second storage location; and moving the second storage unit to another storage unit when it is determined that there is no block in the second storage location of one storage unit.

In addition, the power saving step includes a power storage completion state storage step of storing a power storage completion state when the locations of a plurality of storage units are stored and the power storage is completed in one of the plurality of storage units. can be made including

In this way, when power storage is required, the location of a storage unit that has not reached a power storage completion state among the plurality of storage units may be identified and then moved to proceed with the power storage step.

According to the energy storage system and its control method according to the present invention, power can be produced by stacking blocks stacked on the ground in the ground, so that the stacked blocks can be stably maintained without being affected by the environment.

In addition, according to the present invention, a plurality of storage units for generating or storing power are provided, and energy can be produced or stored by moving from one storage unit to another, so that the energy storage capacity can be easily adjusted. You can get it.

In addition, according to the present invention, the generation or storage of power is automatically controlled in one storage unit, and when the generation or storage of power in one storage unit is completed, the power is automatically transferred to another storage unit. It can be controlled to produce or store, so the effect of easily adjusting the energy storage capacity can be obtained automatically.

1 is a view schematically showing a state in which a conventional tower-type energy storage system using gravity operates;
2 is a front view schematically showing an energy storage system according to an embodiment of the present invention;
3 is a plan view schematically showing a storage unit in an energy storage system according to an embodiment of the present invention;
4 is a schematic cross-sectional view of a storage unit in an energy storage system according to an embodiment of the present invention;
5 schematically shows a state in which blocks are disposed in a first storage location of a storage unit in an energy storage system according to an embodiment of the present invention;
6 schematically shows a state in which blocks are disposed in a second storage location of a storage unit in an energy storage system according to an embodiment of the present invention;
7 is a plan view schematically showing an energy storage system according to an embodiment of the present invention;
8 is a diagram schematically showing a state in which a block is moved by a trolley in an energy storage system according to an embodiment of the present invention;
9 is a diagram schematically showing a state in which a pair of blocks are simultaneously primarily moved in an energy storage system according to an embodiment of the present invention;
10 schematically shows a state in which a pair of blocks are sequentially moved in an energy storage system according to an embodiment of the present invention;
11 is a diagram schematically showing a state in which a block is primarily moved from a first storage location to a second storage location in an energy storage system according to an embodiment of the present invention;
12 is a diagram schematically showing a state in which a pair of blocks are simultaneously and secondarily moved in an energy storage system according to an embodiment of the present invention;
13 is a diagram schematically showing a state in which a block is secondarily moved from a first storage location to a second storage location in an energy storage system according to an embodiment of the present invention;
14 schematically shows a state in which a plurality of trolley rails are provided in an energy storage system according to an embodiment of the present invention;
15 is a diagram schematically showing a state in which blocks according to another embodiment are disposed in a first storage location in an energy storage system according to an embodiment of the present invention;
16 is a diagram schematically showing a state in which blocks according to another embodiment are disposed in a second storage location in an energy storage system according to an embodiment of the present invention;
17 is a diagram schematically showing a state in which the last block of a block according to another embodiment is disposed in a second storage location in an energy storage system according to an embodiment of the present invention;
18 is a diagram schematically showing a state in which a block according to another embodiment is disposed in a first storage location in an energy storage system according to an embodiment of the present invention;
19 is a diagram schematically showing a state in which a part of a block according to another embodiment is disposed in a second storage location in an energy storage system according to an embodiment of the present invention;
20 is a diagram schematically showing a state in which blocks according to another embodiment are stacked in a second storage location in an energy storage system according to an embodiment of the present invention;
21 is a diagram schematically showing a state in which a trolley contacts a connection part of a power system while a generator rotates in an energy storage system according to an embodiment of the present invention;
22 is a block diagram schematically showing some configurations of an energy storage system according to an embodiment of the present invention;
23 is a diagram schematically showing a state in which a plurality of storage units are disposed in an energy storage system according to an embodiment of the present invention;
24 is a diagram schematically showing a state in which a power generation device moves a plurality of storage units in an energy storage system according to an embodiment of the present invention;
25 is a diagram schematically showing a state in which a plurality of generators are arranged in a plurality of storage units in an energy storage system according to an embodiment of the present invention;
26 is a flowchart schematically illustrating a power generation step in a control method of an energy storage system according to an embodiment of the present invention;
27 is a flowchart schematically showing a rotation step after returning from a power generation step of a control method of an energy storage system according to an embodiment of the present invention;
28 is a flowchart schematically illustrating a power storage step in a control method of an energy storage system according to an embodiment of the present invention;
29 is a flowchart schematically illustrating a rotation step after returning from a power storage step of a control method of an energy storage system according to an embodiment of the present invention;
30 is a flowchart schematically illustrating a step of moving from a power generation step to another storage unit in a control method of an energy storage system according to an embodiment of the present invention;
31 is a flowchart schematically illustrating a step of moving to another storage unit in a power storage step of a control method of an energy storage system according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Since the present invention can make various changes and have various embodiments, specific embodiments will be illustrated in the drawings and described in detail in the detailed description. This is not intended to limit the present invention to specific embodiments, and should be construed as including all changes, equivalents, or substitutes included in the spirit and technical scope of the present invention.

In describing the present invention, terms such as first and second may be used to describe various components, but the components may not be limited by the terms. These terms are only for the purpose of distinguishing one component from another. For example, a first element may be termed a second element, and similarly, a second element may be termed a first element, without departing from the scope of the present invention.

The term "and/or" may include any combination of a plurality of related listed items or any of a plurality of related listed items.

When a component is referred to as being "connected" or "connected" to another component, it may be directly connected or connected to the other component, but other components may exist in the middle. can be understood On the other hand, when an element is referred to as “directly connected” or “directly connected” to another element, it may be understood that no other element exists in the middle.

Terms used in this application are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions may include plural expressions unless the context clearly dictates otherwise.

In this application, terms such as "comprise" or "having" are intended to designate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more other features It may be understood that the presence or addition of numbers, steps, operations, components, parts, or combinations thereof is not precluded.

Unless defined otherwise, all terms used herein, including technical or scientific terms, may have the same meaning as commonly understood by a person of ordinary skill in the art to which the present invention belongs. Terms such as those defined in commonly used dictionaries may be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in the present application, interpreted in an ideal or excessively formal meaning. It may not be.

In addition, the following embodiments are provided to more completely explain to those with average knowledge in the art, and the shapes and sizes of elements in the drawings may be exaggerated for clearer explanation.

Hereinafter, specific embodiments of the present invention will be described with reference to the accompanying drawings.

2 is a front view schematically showing an energy storage system according to an embodiment of the present invention, FIGS. 3 and 4 are views schematically showing a storage unit, and FIGS. 5 and 6 are first storage units of the storage unit. It is a diagram schematically showing the location and the state in which blocks are arranged in the second storage location. 7 is a plan view schematically showing the energy storage system, and FIG. 8 is a diagram schematically showing a state in which a block is moved by a trolley. 9 to 13 are diagrams schematically showing a state in which a block is moved from a first storage location to a second storage location, and FIG. 14 is a diagram schematically showing a state in which a plurality of trolley rails are provided. to be. 15 to 17 are views schematically showing blocks according to another embodiment, and FIGS. 18 to 20 are views schematically showing blocks according to another embodiment. Further, FIG. 21 is a diagram schematically showing a state in which the trolley contacts the connection part of the power system while the generator rotates, and FIG. 22 is a block diagram schematically showing some configurations of the energy storage system.

1 to 22, an energy storage system 100 according to an embodiment of the present invention includes a plurality of blocks 400, a storage unit 300 in which the blocks 400 are disposed, and the block 400 ) is moved from the storage unit 300 to produce or store power.

Referring to FIG. 2 , the energy storage system 100 uses a plurality of blocks 400 stacked in the first storage location 310 by using the generator 200 when power generation is required. After moving to the second storage location 320, which is lower in height than the first storage location 310, it freely falls to generate power.

In addition, when power storage is required, power corresponding to the potential energy can be stored by moving the block 400 to the first storage location 310 and stacking it in the second storage location 320 .

In particular, in the storage unit 300 of the energy storage system 100 of the present invention, as shown in FIGS. 3 and 4, the first storage location 310 is formed on the ground and the second storage location (320) is characterized in that it is formed in the ground inside the first storage location (310).

As shown in FIG. 1 , a conventional tower-type energy storage system generates or stores power by stacking or dropping blocks on the ground. At this time, since the blocks stacked on the ground are dropped to the ground again and stacked, in the case of stacking blocks for energy storage, the blocks must be stacked up to a high floor (about 160 m).

Because of this, the blocks stacked in high floors are exposed to the risk of collapse due to environmental influences such as wind resistance and earthquake resistance, and when the blocks of high floors collapse, a large-scale accident may occur, which poses a safety problem.

Therefore, in the present invention, the first storage location 310, which is a location for stacking blocks to store power, is formed on the ground, and the second storage location 320, which is a location for stacking blocks to generate power, is in the ground. Thus, power can be efficiently produced or stored while reducing the height of blocks stacked in the first storage location 310 .

In the storage unit 300, the first storage location 310 is formed outside the second storage location 320 in a circular shape having a diameter at least 1.5 times greater than that of the second storage location 320. can

For example, in the storage unit 300, the stacking height of the plurality of blocks 400 arranged in the second storage location 320 is greater than the stacking height of the blocks 400 arranged in the first storage location 310. It may be formed by setting the area of the first storage location 310 and the second storage location 320 and the underground depth of the second storage location 320 to be at least twice as large.

That is, as shown in FIGS. 5 and 6 , the block 400 stacked in one layer in the first storage location 310 may be stacked in two layers in the second storage location 320 .

Therefore, when the first storage location 310 is formed outside the circumference of the second storage location 320 and has a larger area, the height of the block 400 stacked on the first storage location 310 Since the height of the block 400 stacked in the second storage location 320 can be formed higher than that of the first storage location 310, the block 400 is stacked at a lower height than in the first storage location 310 to improve stability. while generating and storing electricity more effectively.

The generator 200 moves the block 400 from the first storage location 310 to the second storage location 320 or from the second storage location 320 to the first storage location 310 to produce or store power.

That is, the generator 200 moves the block 400 stacked in the first storage location 310 to the second storage location 320 to produce power corresponding to kinetic energy by free fall, The block 400 stacked in the second storage location 320 is moved to the first storage location 310 and stacked to store power corresponding to potential energy.

And, as shown in FIGS. 7 and 8 , the generator 200 is among a plurality of blocks 400 radially arranged in the first storage location 310 or the second storage location 320. It may operate to move at least one pair of blocks facing each other.

That is, the generator 200 can move a plurality of blocks 400 at the same time, thereby improving power production and power storage per unit time.

To this end, referring to FIG. 9 , the generator 200 includes a base frame 210 disposed on the storage unit 300 and provided with a moving unit 220 to rotate on the storage unit 300 and , The trolley rail 230 provided in the base frame 210 and movably fastened to the trolley rail 230 and moving between the first storage location 310 and the second storage location 320 A trolley 240, a regenerative driving unit 250 provided on the trolley 240, generating electricity when rotated in a first direction, and rotating in a second direction when power is applied, and clamping the block 400. A clamper 260 that connects the regenerative driving unit 250 and the clamper 260 and moves the clamper 260 in the height direction while being wound or unwound by the rotation of the regenerative driving unit 250 ( 270) may be included.

Here, the clamper 260 may be configured to attach or detach the block 400 with an electromagnet or grip and clamp the block 400 . That is, the clamper 260 may be formed in any shape as long as the block 400 can be removed from the stacked position after being moved by clamping the block 400 .

In addition, the trolley 240 is provided as a pair and disposed on both sides of the trolley rail 230, and a plurality of blocks radially disposed in the first storage location 310 or the second storage location 320 ( 400), a pair of blocks 400 facing each other may be operated to move simultaneously or sequentially.

Here, among the blocks 400 stacked in the first storage location 310, blocks stacked on the 6th floor are indicated by numbers 461 and 462, and blocks stacked on the 5th floor are indicated by numbers 451 and 452.

In addition, one block 461 and another block 462 are alternately arranged on the 6th floor of the same stacking height, and one block 451 and the other block 451 on the 5th floor of the same stacking height Blocks 452 are arranged alternately with each other.

With this configuration, as shown in FIG. 9, among the blocks 400 in which the clamper 260 is stacked in the first storage location 310, a pair of blocks facing each other among the blocks stacked on the sixth floor, the uppermost layer After the block 461 is clamped, power can be produced by moving it to the second storage location 320 at the same time.

Alternatively, as shown in FIG. 10, among the blocks 400 in which the clamper 260 is stacked in the first storage location 310, among a pair of blocks facing each other among the blocks stacked on the sixth floor, which is the uppermost layer, While one block 461 is first clamped and moved to the second storage location 320, the other one of a pair of blocks facing each other is clamped and sequentially moved to the second storage location 320. It can also operate to generate power by moving.

In addition, the moving unit 220 is any one block of the plurality of blocks 400 in which the trolley rail 230 is radially disposed in the first storage location 310 or the second storage location 320. It is made to rotate so that it is located on top of the block adjacent to it.

That is, referring to FIG. 11 , any one block 461 stacked in the first storage position 310 is clamped and stacked in the second storage position 320, and in the second storage position 320 After rotating from the position of one of the stacked blocks 461 to the position of the neighboring block, it moves to the first storage position 310 and clamps any one of the stacked blocks 461 to the second storage position. (320).

In this case, in the first storage location 310, one block 461 and another block 462 are alternately stacked radially, and one block 461 is the second storage location ( 320) can all be stacked at the same height.

Also, when any one block 461 is stacked at the same height in the second storage location 320, the moving unit 220 rotates to move the trolley rail 230 to the first storage location 310. ) to the position of a neighboring block, and as shown in FIG. 12, clamping another block 462, which is a neighboring block, at the position of one block 461 to the second storage position 320 ) is stacked on.

In this case, as shown in FIG. 13 , another block 462 is stacked on top of any one block 461 stacked in the second storage location 320 .

That is, the plurality of blocks 461 and 462 disposed at the same height in the first storage location 310 may be stacked to a height of at least two stories in the second storage location 320 .

At this time, among the plurality of blocks 400 disposed at the same height in the first storage location 310, one block 461 and another block 462 adjacent thereto are stored in the second storage location 320. ) are stacked at different heights.

This is because the blocks 400 are radially arranged in the first storage location 310 and the second storage location 320, and the blocks 400 arranged radially are located in the first storage location 310 and the second storage location 310. Since it moves in the radial direction between the second storage locations 320, such a stacked form can be achieved.

And, as shown in FIG. 14, the trolley rail 230 is provided in plurality and is radially fastened to the base frame 210, and the first storage location 310 or the second storage location 320 Among the plurality of blocks 400 arranged radially, a pair of blocks facing each other may be operated to simultaneously or sequentially move a plurality of blocks.

In this way, when the trolley rails 230 are provided in plurality, more blocks 400 can be moved at the same time, thereby improving power generation and power storage per unit time.

As shown in FIGS. 5 and 6, the block 400 is provided in a trapezoidal shape, and both side surfaces inclined are disposed spaced apart from each other with side surfaces of adjacent blocks in the first storage position 310, and the second In the storage location 320, side surfaces of neighboring blocks may be disposed in contact with each other.

Through this, since the blocks 400 are placed in close contact with each other in the second storage location 320 stacked at a higher layer, the blocks 400 can be stacked more stably and maintained in a stacked state.

For example, the block 400a may include a protrusion 410a protruding outward from a first side surface and an accommodation groove 420a inserted inwardly from a second side surface into which a protrusion of another block is inserted.

When the block 400a according to an example is disposed in the first storage location 310, as shown in FIG. 15, it is disposed so as not to contact protrusions of neighboring blocks.

That is, since the blocks stacked in the first storage location 310 move in the radial direction and then move to free fall, when the block 400a according to an example is stacked in the first storage location 310 It is arranged so as not to interfere with the projections and movements of neighboring blocks.

And, in the case of stacking the blocks arranged in the first storage location 310 by moving them to the second storage location 320, as shown in FIG. 16, any one block 401a The protrusion 412a of another block 402a adjacent to the receiving groove 421a formed in ) may be inserted.

That is, in the second storage location 320, blocks are stacked by moving from the upper side to the lower side or removed by moving from the lower side to the upper side. The protrusion 412a of the block 402a may be stacked so as to be inserted.

Through this, the stacked blocks can be made to maintain a more stable stacked state without being separated from each other.

In this case, as shown in FIG. 17 , the receiving groove is formed in at least one block 403a among the plurality of blocks stacked at the same height, but the protrusion is not formed.

That is, if a protrusion is formed on the last block stacked at the same height of the second storage location 320, the last block cannot be stacked because it collides with a neighboring block. In order to solve this problem, no protrusion is formed on the last block 403a.

As another example, as shown in FIG. 18, the blocks include a first block 410b having an inclined surface 411b inclined downward toward both sides in the moving direction, and a first block 410b inclined upward toward both sides in the moving direction. It may also include a second block 420b having an inclined surface 421b formed thereon.

Here, in the block according to another example, in the first storage location 310, as shown in FIG. 18, the first block 410b and the second block 420b are alternately arranged radially.

And, as for the blocks according to another example, the plurality of first blocks 410b in the first storage location 310 are first moved to the second storage location 320 as shown in FIG. 19 and stacked at the same height. After that, the plurality of second blocks 420b are moved to the second storage location 320 as shown in FIG. 20 and stacked at the same height above the first block 410b.

At this time, in the second storage location 320, after the first block 410b is radially arranged, the inclined surface 421b of the second block 420b is formed on the inclined surface 411b of the first block 410b. It is stacked radially to be seated.

Through this, the stacked blocks can be made to maintain a more stable stacked state without being separated from each other.

The energy storage system 100 according to an embodiment of the present invention may include a power supply source 520 installed in the ground to store power and a power system 510 electrically connecting the generator 200 to each other. .

When the power system 510 moves the block 400 stacked in the first storage location 310 to the second storage location 320 to generate power corresponding to kinetic energy, the generated power is converted to the power supply source. It can be forwarded to store in (520).

Further, when the power system 510 moves the block 400 stacked in the second storage location 320 to the first storage location 310 to store power corresponding to potential energy, the power supply source Power may be supplied from 520 to transmit power to operate the regenerative driver 250 .

Here, the power system 510 may include connection parts 511 provided in plurality and radially spaced apart from each other and installed on the ground.

As shown in FIG. 21, the connection part 511 is a position where the trolley rail 230 moves the block 400 stacked in the first storage position 310 or the second storage position 320. When positioned at , it is made to be electrically connected to the trolley rail 230 .

That is, a plurality of connection parts 511 are arranged radially outward in each of the plurality of blocks 400 radially arranged in the first storage location 310 .

Through this, when the trolley rail 230 is positioned at a position of a block among a plurality of blocks 400 disposed in the first storage location 310, it is electrically connected to the trolley 240.

Therefore, when the block 400 stacked in the first storage location 310 is moved to the second storage location 320 and lowered, power generated by the regenerative driver 250 is received, and the second storage location 320 is transferred. When the block 400 stacked on 320 is moved to the first storage location 310, power supplied from the power supply source 520 is transmitted to the regenerative driver 250.

In addition, the energy storage system 100 according to an embodiment of the present invention electrically connects the power supply source 520 and an external supply source 540, and converts the power stored in the power supply source 520 to the supply source ( 540) or may further include an underground cable 270 provided to supply power stored in the supply source 540 to the power supply source 520.

Here, the supply source 540 may be formed of an energy storage system capable of generating and storing electric power by solar power generation, wind power generation, hydroelectric power generation, etc. installed in another place.

That is, when power is generated by the energy storage system 100 of the present invention, it is supplied to an external supply source 540 that requires power, and when power is stored in the energy storage system 100, additional power is required. If necessary, power may be supplied from an external supply source 540 .

With this configuration, the energy storage system according to an embodiment of the present invention generates power by stacking the blocks stacked in the first storage location on the ground to the second storage location on the ground for power generation, and stores the power on the ground. In the case of stacking in the first storage location, it can be stacked at a relatively low height, so that the stacked blocks can be stably maintained without being affected by the environment.

Hereinafter, an energy storage system according to an embodiment of the present invention having a plurality of storage units will be described in detail with reference to FIGS. 23 to 25 .

23 is a diagram schematically showing a state in which a plurality of storage units are arranged in an energy storage system according to an embodiment of the present invention, and FIG. 24 is a diagram schematically showing a state in which a power generation device moves a plurality of storage units. 25 is a view schematically showing a state in which a plurality of power generation devices are disposed in a plurality of storage units.

23 to 25, in the energy storage system according to the embodiment of the present invention, a plurality of storage units 300 are provided and spaced apart from each other, and the power generation device 200 includes a plurality of storage units 300. ), when generation or storage of power is completed in one of the storage units, it is moved to another storage unit to produce or store power.

Here, the generator 200 has the same configuration as the configuration described with reference to FIG. 9 .

To this end, the moving unit 220 rotates on one storage unit when generating or storing power, and operates to move to another storage unit when generation or storage of power is completed in one storage unit.

In addition, a rotating rail 330 and a moving rail 340 may be provided to guide the movement of the moving unit 220 .

That is, the rotating rail 330 is circularly disposed along the circumference of the storage unit 300 and may guide the moving unit 220 to rotate on the storage unit 300 .

Through this, as shown in FIG. 23 , the generator 200 may be provided to rotate in one storage unit 300 .

The movable rail 340 connects the rotation rails 330 provided in each of the plurality of storage units 300, and moves the movable unit 220 from one storage unit to another storage unit. can guide

Of course, in the case where the rotation rail 330 and the movable rail 340 are not separately provided and power is generated or stored, they rotate on one storage unit, and power generation or storage is performed in either storage unit. Upon completion, the driving of the moving unit 220 may be controlled to move to another storage unit.

Through this, as shown in FIG. 24, when the generator 200 rotates in one storage unit 300 to complete generating or storing power, it may be provided to move to another storage unit.

At this time, as shown in FIG. 24 , the generator 200 may produce or store power while sequentially moving between storage units in a zigzag pattern.

Of course, the order in which the generator 200 moves is not limited thereto, and the storage unit disposed at a desired location may be directly selected and moved.

Furthermore, as shown in FIG. 25, the power generating device 200 is provided in plurality and disposed at different positions in the plurality of storage units 300, and generates or stores power while moving so as not to interfere with each other. may be done

With this configuration, the energy storage system according to an embodiment of the present invention includes a plurality of storage units for generating or storing power, and can produce or store energy by moving from one storage unit to another, thereby generating or storing energy. can be easily adjusted.

In addition, the energy storage system according to an embodiment of the present invention includes a position sensor 620, a block sensor 630, and a controller to automatically generate and store power in one storage unit and move to another storage unit. (610) may be further included.

The position sensor 620 can recognize which storage unit the generator 200 is when it is located in any one of the plurality of storage units 300 .

The position sensor 620 is provided on the trolley rail 230 to recognize the storage unit. At this time, the position sensor 620 may be equipped with a vision sensor or the like to recognize the display displayed in the storage unit.

For example, a number of each storage unit is assigned to each of the plurality of storage units 300, and the location of the storage unit to which the number is indicated is pre-mapped, so that the generator 200 is located in any one storage unit. If so, the position sensor 620 can recognize the number of the storage unit and determine the location of the storage unit.

The block sensor 630 is a block stacked in the first storage location 310 or the second storage location 320 when the power generation device 200 is located in any one of the plurality of storage units 300. (400) can be made to measure the height.

The block sensor 630 is provided as a laser distance measurement sensor, etc., is installed on the trolley 240, and can measure the height of the stacked blocks 400 while moving with the trolley 240.

That is, the block sensor 630 measures the stacking height of the blocks 400 stacked in the first storage location 310 when the trolley 240 is located on the first storage location 310, and When the trolley 240 is located on the second storage location 320, it can operate to measure the stacking height of the blocks 400 stacked on the second storage location 320.

The control unit 610 is configured to control the operation of the generator 200 in response to the case of generating power by receiving data from the position sensor 620 and the block sensor 630 and the case of storing power. .

With this configuration, when the control unit 610 needs to generate power, all of the blocks 400 stacked in the first storage location 310 in any one storage unit are stored through the block sensor 630. When it is determined that the second storage position 320 is stacked, the moving unit 220 is controlled to move the generator 200 to another storage unit.

And, when the control unit 610 needs to store power, all of the blocks 400 stacked in the second storage location 320 from any one storage unit 300 through the block sensor 630 When it is determined that the first storage position 310 is stacked, the moving unit 220 can be controlled to move the generator 200 to another storage unit.

With this configuration, the energy storage system according to an embodiment of the present invention automatically controls generation or storage of power in one storage unit, and automatically moves to another storage unit when generation or storage of power is completed. Since it can be controlled to generate or store power, an effect of easily adjusting the energy storage capacity automatically can be obtained.

Hereinafter, a control method of an energy storage system according to an embodiment of the present invention will be described in detail with reference to FIGS. 26 to 31 .

26 is a flowchart schematically illustrating a power generation step in a control method of an energy storage system according to an embodiment of the present invention, and FIG. 27 is a flowchart schematically illustrating a rotation step after returning from the power generation step. 28 is a flowchart schematically illustrating a power storage step in the control method of the energy storage system, and FIG. 29 is a flowchart schematically illustrating a rotation step after recovery in the power storage step.

26 to 29, the control method of the energy storage system according to the embodiment of the present invention may include a power generation step (S100) and a power storage step (S200).

The power generation step (S100) is made to produce power corresponding to the kinetic energy by rotating the regenerative driving unit by the free fall that moves the blocks stacked on the first storage location formed on the ground to the second storage location formed on the ground. can

More specifically, the power generation step (S100) includes a first clamping step (S110) of clamping the stacked blocks at the first storage location, and moving the block from the first storage location to the second storage location. A first movement step (S120), a descending step (S130) of free-falling the block to the second storage position, and a first return step (S140) of releasing the clamping of the block and returning to the first storage position (S140). ) can be made including.

That is, in the power generation step (S100), the block may be free-falled from the stacked height at the first storage position in a clamped state, and power may be generated by forcibly rotating the regenerative drive unit. In this case, power may be generated by kinetic energy corresponding to a height difference between the stacked heights of the blocks at the first storage location and the stacked height of the blocks at the second storage location.

Here, the first clamping step (S110) may be performed to simultaneously or sequentially clamp a pair of blocks facing each other among a plurality of blocks radially arranged in the first storage location.

And, in the control method of an energy storage system according to an embodiment of the present invention, a first rotation step in which a plurality of blocks are radially arranged and rotate to the position of a second neighboring block after returning to the first storage position ( S150), and a first stacking height measuring step (S160) of measuring the stacking height of the blocks stacked in the first storage location.

Here, when it is rotated to the position of the neighboring block for the second time after returning to the first storage location, if it is determined that there is a block with the same height as the block in which the just-moved block was placed (No in S170), the second 1 operates to clamp (S110) the stacked blocks at the storage location. That is, it returns to the first clamping step (S110) and proceeds with the next sequence.

And, in the first rotation step (S150), when it is determined that there is no block of the same height (YES in S170) when the rotation is performed to the position of the second neighboring block after returning to the first storage position, the first neighboring block After rotating to the position of the block (S180), it operates to clamp (S110) the stacked blocks in the first storage position.

That is, since the blocks arranged alternately from one to the other among the plurality of blocks radially arranged in the first storage location are all stacked in the second storage location, after rotating to the location of the first neighboring block (S180), Return to the first clamping step (S110) and proceed to the next sequence.

In this order, any one block among a plurality of blocks disposed at the same height in the first storage location is preferentially placed in the second storage location, and then another block adjacent thereto is placed in the second storage location. When stacked thereon, one block and another block in the second storage location are crossed and stacked at different heights.

Afterwards, if it is determined that there are no blocks of the same height, this means that all the blocks stacked at the same height in the first storage location are stacked in the second storage location. proceed with the move

Further, the control method of the energy storage system according to the embodiment of the present invention may further include a second stack height measurement step of measuring stack heights of the blocks stacked in the second storage location.

In this case, in the lowering step (S130), the lowering height may be calculated from the stacking height of the blocks stacked in the second storage location, and then the block may be free-falled by a corresponding height.

That is, rotation of the regenerative driving unit may be forcibly braked when a block freely falling from the stacking height of the first storage location approaches a height to be stacked with the blocks stacked at the second storage location.

Through this, it is possible to prevent blocks that fall freely from the stacking height of the first storage location from colliding with blocks stacked at the second storage location and being damaged.

In the power storage step (S200), power is applied to the regenerative driver to raise the plurality of blocks stacked in the second storage location, and then stacked in the first storage location to store power corresponding to the potential energy. can

More specifically, the power storage step (S200) includes a second clamping step (S210) of clamping the stacked blocks at the second storage location, and a raising step of raising the blocks to a stacked height at the first storage location. (S220), a second moving step of moving the block from the second storage location to the first storage location (S230), and a second return to release the clamping of the block and return to the second storage location. It may be made including step S240.

That is, in the power storage step (S200), power can be stored by clamping the blocks stacked at the second storage location, moving the blocks upward through driving of the regenerative driver, and then stacking the blocks at the first storage location. At this time, it is possible to store power as much as the potential energy corresponding to the height difference between the stacked heights of the blocks at the first storage location and the stacked height of the blocks at the second storage location.

Here, the second clamping step (S210) may be performed to simultaneously or sequentially clamp a pair of blocks facing each other among a plurality of blocks radially arranged in the second storage location.

And, in the control method of the energy storage system according to an embodiment of the present invention, a plurality of the blocks are radially arranged and a second rotation step of rotating to the position of the first neighboring block after returning to the second storage position ( S250), and a second stacking height measuring step (S260) of measuring the stacking height of the blocks stacked in the second storage location.

Here, after returning to the second storage location, if it is determined that there is a block of the same height when first rotated to the location of the neighboring block (No in S270), the stacked blocks in the second storage location are clamped (S210) work to do That is, it returns to the second clamping step (S210) and proceeds with the next sequence.

And, in the second rotation step (S250), when it is determined that there is no block of the same height (YES in S270) when the first rotation is performed to the position of the neighboring block after returning to the second storage position, the return position and the neighbor It operates to clamp (S210) the stacked blocks in the second storage position after rotating between the positions of the blocks (S280).

That is, if it is determined that there is no block of the same height at the location of a neighboring block among a plurality of blocks arranged radially in the second storage location, this means that all blocks stacked at the same height in the second storage location are stored in the first storage location. Since they are stacked in position, the blocks are moved in the same order as above by clamping the blocks stacked on the lower layer.

In this way, the control method of an energy storage system according to an embodiment of the present invention generates power by stacking blocks stacked in a first storage location on the ground to a second storage location on the ground for power generation, and stores power. In the case of stacking in the first storage location on the ground, it can be stacked at a relatively low height, so that the stacked blocks can be stably maintained without being affected by the environment.

Hereinafter, a control method of an energy storage system according to an embodiment of the present invention having a plurality of storage units will be described in detail with reference to FIGS. 30 and 31 .

30 is a flowchart schematically illustrating the step of moving to another storage unit in the power generation step of the control method of the energy storage system according to an embodiment of the present invention, and FIG. It is a flowchart schematically showing the steps of moving to the storage unit.

30 to 31, the control method of the energy storage system according to the embodiment of the present invention includes the above-described power generation step (S100) and power storage step (S200), and moves between a plurality of storage units. It may be made further comprising a storage moving step to do.

That is, in the step of moving the storage unit, a plurality of storage units including the first storage location and the second storage location are provided, and when power generation or storage in one storage unit is completed, the storage unit is moved to another storage unit.

More specifically, the power generation step (S100) includes a first stacking height measuring step (S191) of measuring the stacking height of blocks stacked in the first storage location, and one storage unit (first storage unit) When it is determined that there is no block in the first storage location (YES in S192), a first storage unit moving step (S194) of moving to another storage unit (second storage unit) may be included.

That is, since the power generation step (S100) generates power by freely falling blocks stacked in the first storage location to the second storage location, it is determined that there is no block in the first storage location of the first storage unit ( If S192 is YES, since power generation is no longer possible, the power generation step (S100) can be continuously performed by moving to the second storage unit.

And, if it is determined that there is a block in the first storage location of the first storage unit after the first stacking height measuring step (S191) (No in S192), it is stacked in the first storage location without moving to the second storage unit. It returns to the first stack height measurement step (S191) until all blocks are moved, and proceeds with the power generation step (S100) while checking the blocks.

In the power generation step (S100), the locations of the plurality of storage units are stored, and when the power generation is completed in one of the plurality of storage units, the power generation completion state storage step (S193) of storing the power generation completion state. ) may be further included.

Therefore, since the power generation completion state or the power storage completion state is stored in advance for each of the plurality of storage units, when power generation is required, after grasping the location of the storage unit that has not reached the power generation completion state among the plurality of storage units You can move and proceed with the power generation step.

In addition, the power storage step (S200) includes a second stacking height measuring step (S291) of measuring the stacking height of the blocks stacked in the second storage location, and the second stacking height of any one storage unit (first storage unit). When it is determined that there is no block in the storage location (YES in S292), a second storage unit moving step (S294) of moving to another storage unit (second storage unit) may be included.

That is, since the power storage step (S200) stores power by stacking the blocks stacked in the second storage location to the first storage location, it is determined that there is no block in the second storage location of the first storage unit (S292 Yes), since the power storage is no longer possible, the power storage step (S200) can be continuously performed by moving to the second storage unit.

And, if it is determined that there is a block in the second storage location of the first storage unit after the second stacking height measuring step (S291) (No in S292), it does not move to the second storage unit and is stacked in the second storage location. It returns to the second stacking height measurement step (S291) until all blocks are moved, and proceeds with the power storage step (S200) while checking the blocks.

In the power saving step (S200), the locations of a plurality of storage units are stored, and when the power storage is completed in one of the plurality of storage units, a power storage completion state storage step (S293) of storing the power storage completion state. ) may be further included.

Therefore, since the power generation completion state or the power storage completion state is stored in advance for each of the plurality of storage units, when power storage is required, after grasping the location of the storage unit that has not reached the power storage completion state among the plurality of storage units, The power storage step may be performed by moving.

In this way, the control method of the energy storage system according to the embodiment of the present invention includes a plurality of storage units for generating or storing power, and can produce or store energy by moving from one storage unit to another. An effect of easily adjusting the energy storage capacity can be obtained.

Although the present invention has been described in detail through specific examples, this is for explaining the present invention in detail, the present invention is not limited thereto, and the present invention is within the technical spirit of the present invention. It is clear that modification or improvement is possible by the person.

All simple modifications or changes of the present invention fall within the scope of the present invention, and the specific protection scope of the present invention will be clarified by the appended claims.

100: energy storage system 200: power generation device
210: base frame 220: moving part
230: trolley rail 240: trolley
250: regenerative driving unit 260: clamper
270: cable 300: storage unit
310: first storage location 320: second storage location
330: rotation rail 340: moving rail
400: block 510: power system
511: connection part 520: power supply source
530: underground cable 540: supply source
610: control unit 620: position sensor
630: block sensor

Claims (54)

multiple blocks;
a storage unit including a first storage location and a second storage location where the block is disposed, wherein the first storage location is higher than the second storage location; and
a generator generating or storing electric power by moving the block from the first storage location to the second storage location or from the second storage location to the first storage location;
Energy storage system comprising a.
According to claim 1,
the storage unit,
The energy storage system, characterized in that the first storage location is formed on the ground, and the second storage location is formed on the ground.
According to claim 1,
The first storage location is,
The energy storage system of claim 1 , wherein a circular shape having a diameter at least 1.5 times greater than that of the second storage location is formed outside the second storage location.
According to claim 1,
the storage unit,
The first storage location and the second storage location such that a stacking height in which the plurality of blocks are arranged in the second storage location and stacked is at least twice greater than a stacking height in which the blocks are arranged in the first storage location and stacked. The energy storage system, characterized in that formed by setting the area and the underground depth of the second storage location.
According to claim 1,
The power plant,
The blocks stacked in the first storage location are moved to the second storage location to produce power corresponding to kinetic energy by free fall, and the blocks stacked in the second storage location are moved to the first storage location. An energy storage system characterized in that it stores power corresponding to potential energy by stacking.
According to claim 1,
The power plant,
The energy storage system according to claim 1 , wherein the energy storage system operates to simultaneously or sequentially move at least one pair of blocks facing each other among a plurality of blocks arranged radially in the first storage location or the second storage location.
According to claim 1,
The power plant,
a base frame disposed on the storage unit and having a moving unit to rotate on the storage unit;
a trolley rail provided on the base frame;
a trolley movably coupled to the trolley rail and moving between the first storage location and the second storage location;
a regenerative driving unit provided on the trolley, generating electric power when rotated in a first direction, and rotating in a second direction when power is applied;
a clamper for clamping the block; and
a cable connecting the regenerative driver and the clamper and moving the clamper in a height direction while being wound or unwound by rotation of the regenerative driver;
Energy storage system comprising a.
According to claim 7,
The trolley,
Operate to simultaneously or sequentially move a pair of blocks facing each other among a plurality of blocks provided in pairs and disposed on both sides of the trolley rail and radially disposed in the first storage location or the second storage location characterized energy storage system.
According to claim 7,
The moving part,
Energy storage characterized in that the trolley rail is rotated to be positioned from the top of any one block among the plurality of blocks radially arranged in the first storage position or the second storage position to the top of a block adjacent thereto system.
According to claim 7,
The trolley rail,
Provided in plurality and radially fastened to the base frame, operating to simultaneously or sequentially move a plurality of blocks facing each other among a plurality of blocks radially arranged in the first storage location or the second storage location characterized energy storage system.
According to claim 7,
The clamper,
The energy storage system, characterized in that configured to detach the block with an electromagnet, or grip and clamp the block.
According to claim 1,
The energy storage system of claim 1 , wherein the plurality of blocks arranged at the same height at the first storage location are stacked to a height of at least two stories at the second storage location.
According to claim 1,
The energy storage system of claim 1 , wherein any one of the plurality of blocks disposed at the same height in the first storage location and blocks adjacent thereto are crossed and stacked at different heights in the second storage location.
According to claim 1,
The block is
It is provided in a trapezoidal shape, and both side surfaces inclined are arranged spaced apart from each other at the first storage position and in contact with the side surfaces of the neighboring block at the second storage position. Energy storage system.
According to claim 14,
The block is
A protrusion protruding outward from the first side surface; and
a receiving groove inserted inwardly from the second side surface into which a protrusion of another block is inserted;
Energy storage system comprising a.
According to claim 15,
The energy storage system of claim 1 , wherein at least one of the plurality of blocks stacked at the same height has the receiving groove but not the protrusion.
According to claim 16,
The block in which the protrusion is not formed,
The energy storage system, characterized in that when the block is disposed in the second storage position, it is disposed last at the same stacking height.
According to claim 15,
The block is
In the state of being disposed in the first storage position, the protrusion is formed so as not to interfere with neighboring blocks,
The energy storage system according to claim 1 , wherein the protrusion is formed to be inserted into a receiving groove of a neighboring block in a state of being disposed at the second storage position.
According to claim 1,
The block is
A first block having inclined surfaces inclined downward toward both sides of the moving direction; and
A second block formed with inclined surfaces inclined upward toward both sides in the moving direction;
Energy storage system comprising a.
According to claim 19,
The block is
In the first storage location, the first block and the second block are alternately arranged radially;
The energy storage system of claim 1 , wherein at the second storage location, after the first block is radially arranged, the second block is stacked radially so that the inclined surface of the second block is seated on the inclined surface of the first block.
According to claim 7,
A power system electrically connecting a power supply source installed in the ground to store power and the generator;
Energy storage system comprising a.
According to claim 21,
The power system,
When power corresponding to kinetic energy is generated by moving blocks stacked in the first storage location to the second storage location, the generated power is transferred to the power supply source for storage;
When the block stacked in the second storage location is moved to the first storage location to store power corresponding to potential energy, power is supplied from the power supply source and power is transmitted to operate the regenerative driver. energy storage system.
According to claim 21,
The power system,
Connecting units provided in plurality and radially spaced apart from each other and installed on the ground;
Energy storage system comprising a.
According to claim 23,
The connection part,
The energy storage system of claim 1 , wherein the trolley rail is electrically connected to the trolley when the trolley rail is located at a position to move blocks stacked in the first storage position or the second storage position.
According to claim 21,
An underground cable provided to electrically connect the power supply source and an external power supply source, and supply power stored in the power supply source to the power supply source or supply power stored in the power supply source to the power supply source;
Energy storage system comprising a.
multiple blocks;
a plurality of storage units spaced apart from each other and including a first storage location and a second storage location lower than the first storage location; and
Power is generated or stored by moving the block from the first storage location to the second storage location or from the second storage location to the first storage location, and when generation or storage of power is completed in any one storage unit A generator that produces or stores power by moving to another storage unit;
Energy storage system comprising a.
The method of claim 26,
The power plant,
a base frame disposed on the storage unit;
a trolley rail provided on the base frame;
a trolley movably coupled to the trolley rail and moving between the first storage location and the second storage location;
a regenerative driving unit provided on the trolley, generating electric power when rotated in a first direction, and rotating in a second direction when power is applied;
a clamper for clamping the block;
a cable connecting the regenerative driver and the clamper and moving the clamper in a height direction while being wound or unwound by rotation of the regenerative driver; and
A moving unit provided in the base frame, rotating on one storage unit when generating or storing power, and moving to another storage unit when generation or storage of power is completed in one storage unit;
Energy storage system comprising a.
The method of claim 27,
a rotating rail arranged in a circular shape along the circumference of the storage unit and guiding the moving unit to rotate on the storage unit; and
a moving rail connecting the rotating rails provided in each of the plurality of storage units and guiding the moving unit to move from one storage unit to another storage unit;
Energy storage system comprising a.
The method of claim 27,
a position sensor for recognizing which storage unit is located when the generator is located in any one of the plurality of storage units; and
a block sensor for measuring a height of a block stacked in the first storage location or the second storage location when the generator is located in any one of the plurality of storage units;
Energy storage system comprising a.
According to claim 29,
a control unit for controlling the operation of the power generation device in response to a case of generating power by receiving data from the position sensor and a case of storing power by receiving data from the block sensor;
Energy storage system comprising a.
31. The method of claim 30,
The control unit,
When it is necessary to generate power, if one storage unit determines that all blocks stacked in the first storage location are stacked in the second storage location, the moving unit is controlled to move the blocks to another storage unit. energy storage system.
31. The method of claim 30,
The control unit,
When power is to be stored, if one storage unit determines that all blocks stacked in the second storage location are stacked in the first storage location, the moving unit is controlled to move the blocks to another storage unit. energy storage system.
The method of claim 26,
The power plant,
An energy storage system, characterized in that provided in plurality, arranged in different positions in the plurality of storage units, and generating or storing power while moving so as not to interfere with each other.
A power generation step of generating power corresponding to the kinetic energy by rotating the regenerative driving unit by the free fall of the blocks stacked on the first storage location formed on the ground to the second storage location formed on the ground; and
a power storage step of raising the plurality of blocks stacked in the second storage location by applying power to the regenerative drive unit and stacking the blocks in the first storage location to store power corresponding to potential energy;
A control method of an energy storage system comprising a.
35. The method of claim 34,
The power generation step,
a first clamping step of clamping the stacked blocks in the first storage position;
a first moving step of moving the block from the first storage location to the second storage location;
a descending step of free-falling the block to the second storage location; and
a first return step of releasing the clamping of the block and returning to the first storage position;
A control method of an energy storage system comprising a.
The method of claim 35,
a first rotation step in which the plurality of blocks are arranged radially and rotate to the position of a second neighboring block after returning to the first storage position; and
a first stacking height measuring step of measuring stacking heights of blocks stacked in the first storage location;
A control method of an energy storage system comprising a.
37. The method of claim 36,
The first clamping step,
Control method of an energy storage system, characterized in that, if it is determined that there is a block of the same height when rotating to the position of a second neighboring block after returning to the first storage position, clamping the stacked block at the position.
37. The method of claim 36,
The first rotation step,
Control of the energy storage system, characterized in that, when it is determined that there is no block of the same height when rotating to the position of the second neighboring block after returning to the first storage position, it rotates to the position of the neighboring block first. Way.
The method of claim 35,
The first clamping step,
A control method of an energy storage system, characterized in that simultaneously or sequentially clamping a pair of blocks facing each other among a plurality of blocks radially arranged in the first storage position.
The method of claim 35,
a second stacking height measuring step of measuring stacking heights of blocks stacked in the second storage location;
A control method of an energy storage system comprising a.
41. The method of claim 40,
The descending step is
The control method of the energy storage system, characterized in that, after calculating the falling height from the stacking height of the blocks stacked in the second storage position, the block is free-falling by a corresponding height.
35. The method of claim 34,
The power generation step,
A control method of an energy storage system, characterized in that any one block among a plurality of blocks arranged at the same height in the first storage location and blocks adjacent thereto are crossed and stacked at different heights in the second storage location. .
35. The method of claim 34,
The power storage step,
a second clamping step of clamping the stacked blocks in the second storage position;
a raising step of raising the block to a stacking height at the first storage location;
a second moving step of moving the block from the second storage location to the first storage location; and
a second return step of releasing the clamping of the block and returning to the second storage location;
A control method of an energy storage system comprising a.
44. The method of claim 43,
a second rotation step in which the plurality of blocks are arranged radially and rotate to the position of a first neighboring block after returning to the second storage location; and
a second stacking height measuring step of measuring stacking heights of blocks stacked in the second storage location;
A control method of an energy storage system comprising a.
44. The method of claim 43,
The second clamping step,
Control method of an energy storage system, characterized in that, if it is determined that there is a block of the same height when rotating to the position of the first neighboring block after returning to the second storage position, clamping the stacked blocks at the position.
45. The method of claim 44,
The second rotation step,
When it is determined that there is no block of the same height when first rotated to the position of the neighboring block after returning to the second storage position, the energy storage system rotates between the return position and the position of the neighboring block. control method.
44. The method of claim 43,
The second clamping step,
A control method of an energy storage system, characterized in that simultaneously or sequentially clamping a pair of blocks facing each other among a plurality of blocks radially arranged in the second storage position.
A power generation step of generating power corresponding to the kinetic energy by rotating the regenerative driving unit by the free fall of the blocks stacked on the first storage location formed on the ground to the second storage location formed on the ground;
a power storage step of raising the plurality of blocks stacked in the second storage location by applying power to the regenerative drive unit and stacking the blocks in the first storage location to store power corresponding to potential energy; and
A storage unit moving step in which a plurality of storage units including the first storage location and the second storage location are provided, and moving to another storage unit when generation or storage of power in one storage unit is completed;
A control method of an energy storage system comprising a.
The method of claim 48,
The power generation step,
a first stacking height measuring step of measuring stacking heights of blocks stacked in the first storage location; and
moving a first storage unit to another storage unit when it is determined that there is no block in a first storage location of one storage unit;
A control method of an energy storage system comprising a.
The method of claim 49,
a power generation completion state storage step of storing a power generation completion state when the locations of the plurality of storage units are stored and the power generation is completed in one of the plurality of storage units;
A control method of an energy storage system comprising a.
51. The method of claim 50,
A control method of an energy storage system, characterized in that, when power generation is required, a location of a storage unit among the plurality of storage units that is not in a power generation complete state is identified and then moved to proceed with a power generation step.
The method of claim 48,
The power storage step,
a second stacking height measuring step of measuring stacking heights of blocks stacked in the second storage location; and
moving a second storage unit to another storage unit when it is determined that there is no block in a second storage location of one storage unit;
A control method of an energy storage system comprising a.
52. The method of claim 52,
a power storage completion state storage step of storing a power storage completion state when the locations of the plurality of storage units are stored and the power storage is completed in one of the plurality of storage units;
A control method of an energy storage system comprising a.
The method of claim 53,
A control method of an energy storage system, characterized in that, when power storage is required, a location of a storage unit among the plurality of storage units that has not reached a power storage completion state is identified and then moved to proceed with a power storage step.

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