CN115000988A - Efficient operation control method for gravity energy storage - Google Patents
Efficient operation control method for gravity energy storage Download PDFInfo
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- CN115000988A CN115000988A CN202210693157.1A CN202210693157A CN115000988A CN 115000988 A CN115000988 A CN 115000988A CN 202210693157 A CN202210693157 A CN 202210693157A CN 115000988 A CN115000988 A CN 115000988A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G3/00—Other motors, e.g. gravity or inertia motors
- F03G3/087—Gravity or weight motors
- F03G3/094—Gravity or weight motors specially adapted for potential energy power storage stations; combinations of gravity or weight motors with electric motors or generators
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J15/00—Systems for storing electric energy
- H02J15/007—Systems for storing electric energy involving storage in the form of mechanical energy, e.g. fly-wheels
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
Abstract
The invention discloses a high-efficiency operation control method for gravity energy storage, which comprises the following steps: when an energy storage instruction of the local central controller is received, the operation controller calls a pre-stored energy storage operation database as an operation route instruction of the transfer device, and drives the transfer device to transfer the gravity block from the storage layer area to the energy storage layer area to finish energy storage; when a power generation instruction of the local central controller is received, the operation controller calls a pre-stored power generation operation database as an operation route instruction of the transfer device, and drives the transfer device to transfer the gravity block from the energy storage layer area to the storage layer area to complete power generation; the operation controller respectively serves as an operation route instruction of the transfer device based on the pre-stored energy storage operation database and the pre-stored power generation operation database, the transfer device is driven to transfer the gravity block, the operation control process of gravity energy storage is simple and efficient, and the method is particularly suitable for being used as an operation control method of gravity energy storage in a multi-channel parallel mode.
Description
Technical Field
The invention belongs to the technical field of energy storage, and particularly relates to a high-efficiency operation control method for gravity energy storage.
Background
The state vigorously develops clean energy power generation projects, such as wind power generation, solar photovoltaic power generation, tidal power generation and other renewable pollution-free energy sources, so that carbon emission generated by fossil fuel combustion power generation is reduced. However, the clean energy power generation resources and the power loads are often not matched, and particularly, the demand of the power grid side with wind power generation along the sea at night is reduced, and the power is difficult to be consumed, so that energy storage is needed.
The stored energy can store or convert the electric power into other forms of energy storage, so that electric energy is released and generated in the peak time of electricity utilization, and the peak regulation of the electric power can be performed in cooperation with a power grid. The current commonly used energy storage methods comprise physical methods such as pumped storage, compressed air storage, flywheel storage and the like, have restrictive requirements on geographical positions, and have higher rotational inertia and power consumption of a motor; the lithium ion battery and other electrochemical energy storage cycle has short service life, is easy to pollute the environment and has higher safety risk; the super capacitor energy storage and the superconducting energy storage have low energy density and high cost.
Because the gravity energy storage adopts a physical method, potential energy is stored by improving a heavy object, the pollution problem is avoided, and the heavy object is released to drive the motor to generate power when the power is required. However, the existing gravity energy storage method adopts a single lifting weight, is often low in efficiency, small in energy storage, limited by geographical conditions, limited in capacity expansion and high in life cycle cost.
The applicant has decided to seek technical solutions to solve the above technical problems.
Disclosure of Invention
In view of the above, an object of the present invention is to provide an efficient operation control method for gravity energy storage, in which an operation controller drives a transfer device to transfer a gravity block based on pre-stored energy storage operation database and pre-stored power generation operation database as operation route instructions of the transfer device, so that the operation control process for gravity energy storage is simple and efficient, and the method is particularly suitable for being used as an operation control method for gravity energy storage in a multi-channel parallel manner.
The technical scheme adopted by the invention is as follows:
an efficient operation control method of gravity energy storage, the operation control method comprising:
when an energy storage instruction of the local central controller is received, the operation controller calls a pre-stored energy storage operation database as an operation route instruction of the transfer device, and drives the transfer device to transfer the gravity block from the storage layer area to the energy storage layer area to finish energy storage;
when a power generation instruction of the local central controller is received, the operation controller calls a pre-stored power generation operation database as an operation route instruction of the transfer device, and the transfer device is driven to transfer the gravity block from the energy storage layer area to the energy storage layer area, so that power generation is completed.
Preferably, the storage layer area comprises N Y-direction storage layers stacked in the Z-direction and K X-direction storage layers stacked in the Z-direction; each Y-direction storage layer comprises H rows of Y-direction storage layer channels which are sequentially arranged in the X direction, and each row of Y-direction storage layer channels consists of R rows of Y-direction storage layer channel units; each X-direction storage layer comprises P rows of X-direction storage layer channels which are sequentially arranged in the Y direction, and each row of X-direction storage layer channels consists of F rows of X-direction storage layer channel units;
the energy storage layer region comprises M Y-direction energy storage layers which are distributed in a stacking mode in the Z direction and Q X-direction energy storage layers which are distributed in the Z direction in a stacking mode; the Y-direction storage layer and the Y-direction energy storage layer respectively correspond to each other in the Z direction, and H-column Y-direction storage layer channels sequentially arranged in the X direction are respectively and correspondingly connected with the corresponding Y-direction energy storage layer channels through a plurality of first lifting channels sequentially arranged in the X direction; the X-direction storage layer and the X-direction energy storage layer respectively correspond to each other in the Z direction, and P rows of X-direction storage layer channels sequentially arranged in the Y direction are respectively and correspondingly connected with the corresponding X-direction energy storage layer channels through a plurality of second lifting channels sequentially arranged in the Y direction;
wherein, the N, K, H, R, P, F, M, Q are all positive integers greater than 1.
Preferably, when the electric energy surplus occurs at the power grid side and reaches a certain threshold value, the power grid dispatching center sends an energy storage instruction to the local central controller; when the electric energy gap appears on the power grid side and reaches a certain threshold value, the power grid dispatching center sends a power generation instruction to the local central controller, the local central controller is in control connection with the operation controller, the operation controller is in control connection with the transfer device and is used for controlling and monitoring the operation state of the transfer device.
Preferably, the energy storage operation database comprises a plurality of operation routes running from Y-direction storage layer channel units positioned on a Z-direction ni layer, a Y-direction ri column and an X-direction hi column to Y-direction energy storage layer channel units positioned on a Z-direction mi layer, a Y-direction ri column and an X-direction hi column, and a plurality of operation routes running from X-direction storage layer channel units positioned on a Z-direction ki layer, an X-direction fi column and a Y-direction pi column to X-direction energy storage layer channel units positioned on a Z-direction qi layer, an X-direction fi column and a Y-direction pi column; the transfer device returns to a zero position after transferring according to the operation route instruction and waits for the next operation route instruction;
the power generation operation database comprises a plurality of operation routes which run from Y-direction energy storage layer channel units positioned on a Z-direction mi layer, a Y-direction ri column and an X-direction hi column to Y-direction energy storage layer channel units positioned on a Z-direction ni layer, a Y-direction ri column and an X-direction hi column, and a plurality of operation routes which run from X-direction energy storage layer channel units positioned on a Z-direction qi layer, an X-direction fi column and a Y-direction pi column to X-direction energy storage layer channel units positioned on a Z-direction ki layer, an X-direction fi column and a Y-direction pi column; the transfer device returns to a zero position after completing transfer according to the operation route instruction and waits for the next operation route instruction; wherein ni is any positive integer between 1 and N, ri is any positive integer between 1 and R, hi is any positive integer between 1 and H, mi is any positive integer between 1 and M, ki is any positive integer between 1 and K, fi is any positive integer between 1 and F, pi is any positive integer between 1 and P, and qi is any positive integer between 1 and Q.
Preferably, the transfer device comprises track beams which are respectively and correspondingly arranged in each Y-direction storage layer channel, each X-direction storage layer channel, each Y-direction energy storage layer channel and each X-direction energy storage layer channel, and a transfer trolley for transferring the gravity block is arranged on each track beam in a relatively displaceable manner; the transfer trolley is provided with a visual unit in communication connection with the operation controller, and the track beam is provided with a coordinate label for positioning and identifying the destination coordinate of the transfer trolley by the visual unit.
Preferably, each destination coordinate of the transfer trolley is identified and positioned through at least two coordinate labels; the coordinate tags comprise a destination deceleration coordinate tag and a destination correction coordinate tag, and the identification and positioning process comprises the following steps:
s10), when the transfer trolley runs, the destination deceleration coordinate label is identified through the vision unit;
s20), when the destination deceleration coordinate label is recognized, the operation controller controls the transfer vehicle to decelerate at a constant speed until stopping, and during this period, the destination correction coordinate label is recognized by the vision unit;
s30), when the destination correction coordinate tag is recognized, the operation controller controls the transfer vehicle to proceed to step S50); when the destination correction coordinate tag cannot be recognized, the operation controller controls the transfer vehicle to proceed to step S40);
s40), the operation controller sends a position adjusting instruction to the transfer trolley according to the actual position of the destination correction coordinate tag, the transfer trolley performs left side or right side displacement adjustment until the destination correction coordinate tag can be identified, and then the operation controller enters the step S50).
S50), the running controller sends a gravity block releasing instruction to the transfer trolley, and the transfer trolley executes the instruction to complete the destination coordinate identification and positioning of the transfer trolley.
Preferably, the destination deceleration coordinate tags and the destination correction coordinate tags corresponding to each destination coordinate are arranged on the same horizontal plane of the track beam at intervals, wherein the distance between the destination deceleration coordinate tags and the destination correction coordinate tags is 0.1-0.4 m, and the centers of the vision lenses of the vision units and the centers of the coordinate tags are arranged at the same height.
Preferably, the transfer vehicle comprises a transfer vehicle body for transferring the gravity block and a suspension vehicle body mounted on the track beam in a suspension manner, the transfer device further comprises a first lifting motor module and a second lifting motor module which are respectively arranged in each first lifting channel and each second lifting channel, the first lifting motor module and the second lifting motor module are respectively electrically connected with the operation controller, and the gravity block is subjected to lifting transfer change to realize selective energy storage or power generation; wherein the content of the first and second substances,
when the transfer device executes a running route instruction in the energy storage running database, the gravity block located at the initial coordinate position in the storage layer area is lifted by the suspension vehicle body and transferred to the transfer vehicle body; the transfer trolley body transfers the gravity block to a lifting channel corresponding to the gravity block, the gravity block is lifted and transferred to a target position of the energy storage layer area through a lifting motor module in the lifting channel and is released to a corresponding transfer trolley body located in the energy storage layer area, the transfer trolley body transfers the gravity block to a preset position, then the gravity block is transferred to a target coordinate position through a corresponding suspension trolley body, and the transfer trolley returns to a zero position;
when the transfer device executes an operation route instruction in the power generation operation database, the gravity block located at the initial coordinate position in the energy storage layer area is lifted by the suspension vehicle body and transferred to the transfer vehicle body; the transfer trolley body transfers the gravity block to a corresponding lifting channel, the gravity block descends and is transferred to a target position of the storage layer area through a lifting motor module in the lifting channel and is released to a corresponding transfer trolley body located in the energy storage area, the transfer trolley body transfers the gravity block to a preset position, then the gravity block is transferred to a target coordinate position through a corresponding suspension trolley body, and the transfer trolley returns to a zero position.
Preferably, the transfer trolley body is provided with a gear driven by a transfer trolley motor, and the gear is correspondingly matched with a rack arranged on the track beam to realize displacement guidance of the transfer trolley body on the track beam; the utility model discloses a suspension car body is equipped with vertical flexible post, the tip of vertical flexible post is installed to the tie to flexible round pin, tie to flexible round pin selectivity and the spacing installation cooperation of gravity piece, simultaneously the gear by suspension car motor drive is installed to the suspension car body, the gear corresponds the cooperation with the rack of installing on the track roof beam, and the realization is right the suspension car body is in transfer displacement direction on the track roof beam.
Preferably, each lifting channel is internally provided with a guide rail, a slide block and a rigidity damping unit, and the guide rail is connected with the corresponding slide block to realize Z-direction linear guide; the first lifting motor module and the second lifting motor module respectively comprise a lifting generator, a lifting cable is mounted on the lifting generator, and a manipulator for selectively positioning and clamping the gravity block is arranged at the tail end of the lifting cable; the manipulator comprises a manipulator long arm which can be selectively opened and is arranged on a support rod, and a telescopic rod is arranged between the support rod and a lifting rope; meanwhile, the manipulator is connected with the sliding block through the rigidity damping unit and used for restraining the rotation and translational freedom degrees of the manipulator and the gravity block.
It should be noted that the gravity block referred to in this application may be made of a known structure, generally mainly made of sand and/or carbon steel, and the application is not particularly limited thereto, and those skilled in the art can make specific selections according to actual needs.
The invention provides a main structure which is composed of a local central controller, an operation controller and a transfer device which are sequentially controlled and connected and used for realizing the gravity energy storage parallel operation control, wherein an energy storage instruction or a power generation instruction is selectively sent to the operation controller through the local central controller based on the requirement of a power grid side, then the operation controller is used for driving the transfer device to transfer a gravity block based on an energy storage operation database and a power generation operation database which are stored in advance and respectively used as operation route instructions of the transfer device, so that the operation control process of the gravity energy storage is simple and efficient;
the invention also particularly provides a Y-direction energy storage layer consisting of a plurality of Y-direction energy storage layer channels which are sequentially arranged in the X direction, an X-direction energy storage layer consisting of a plurality of X-direction energy storage layer channels which are sequentially arranged in the Y direction, a Y-direction storage layer consisting of a plurality of Y-direction storage layer channels which are sequentially arranged in the X direction, and a gravity energy storage parallel frame structure consisting of an X-direction storage layer consisting of a plurality of X-direction storage layer channels which are sequentially arranged in the Y direction, wherein the Y-direction energy storage layer and the X-direction energy storage layer are vertically stacked and distributed in the Z direction (also called as the vertical direction), each Y-direction storage layer channel corresponds to each Y-direction energy storage layer channel in the Z direction, and each X-direction storage layer channel corresponds to each X-direction energy storage layer channel in the Z direction; in actual work, the invention can simultaneously realize that the energy storage is realized by lifting the gravity block in the X direction and the Y direction in a multi-channel parallel mode, greatly improves the operation efficiency, can conveniently and efficiently expand the stored energy in the X direction and the Y direction, can regulate the peak of electric power according to the requirement of a power grid, is not limited by regional environment, and well meets the development requirement of green clean energy.
The application also particularly preferably provides that the scheme of combining the coordinate tags through the vision unit realizes accurate positioning in the gravity energy storage operation control, and further improves the control level of the application.
Drawings
FIG. 1 is a cross-sectional view of a parallel frame type gravity energy storage and transportation system in the Y-Z direction (the arrows in the figure represent the energy storage and transportation direction of gravity blocks) according to an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1;
FIG. 3 is an enlarged view of another portion of the structure of FIG. 1;
FIG. 4 is a cross-sectional view of a parallel frame type gravity energy storage and transportation system in the X-Z direction (the arrows in the figure represent the energy storage and transportation direction of the gravity blocks) according to an embodiment of the present invention;
FIG. 5 is an enlarged view of a portion of FIG. 4;
FIG. 6 is an enlarged view of another portion of the structure of FIG. 4;
FIG. 7 is a schematic diagram of an axial side structure of a parallel frame type gravity energy storage and transportation system according to an embodiment of the present invention (only a partial structure is shown);
fig. 8 is a schematic view of the working states of the transfer unit and the corresponding lifting unit in the embodiment of the present invention;
FIG. 9 is a schematic diagram of the structure of the transfer unit of FIG. 8.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, shall fall within the protection scope of the present invention.
Referring to fig. 1 and 4, in order to improve the operation efficiency of gravity energy storage, the present embodiment preferably provides a parallel frame type gravity energy storage transportation system, including a gravity energy storage parallel frame fixedly mounted on a foundation 7, wherein preferably, the gravity energy storage parallel frame may specifically adopt a stable and reliable structure formed by connecting metal profiles and fasteners, and during actual manufacturing, an assembly type production process may be adopted, so that the mounting efficiency is high; preferably, in the embodiment, the foundation supports the operation of the gravity energy storage parallel frame, and is formed by pouring steel frame concrete, so that the service life of the gravity energy storage parallel frame can reach more than 40 years, and the service life cycle cost is low; in the embodiment, the parallel frame for gravity energy storage comprises an energy storage layer area 1 and an energy storage layer area 2 which are distributed up and down in the Z direction respectively;
the efficient operation control method for gravity energy storage adopted by the embodiment comprises the following steps: when an energy storage instruction of a local central controller is received, the operation controller calls a pre-stored energy storage operation database as an operation route instruction of the transfer device, and drives the transfer device to transfer the gravity block 8 from the storage layer area 2 to the energy storage layer area 1 to finish energy storage; when a power generation instruction of the local central controller is received, the operation controller calls a pre-stored power generation operation database as an operation route instruction of the transfer device, and drives the transfer device to transfer the gravity block 8 from the energy storage layer area 1 to the storage layer area 2 to finish power generation; preferably, when the electric energy surplus occurs at the power grid side and reaches a certain threshold value, the power grid dispatching center sends an energy storage instruction to the local central controller; when the electric energy gap appears on the side of the power grid and reaches a certain threshold value, the power grid dispatching center sends a power generation instruction to the local central controller, the local central controller is in control connection with the operation controller, and the operation controller is in control connection with the transfer device and used for controlling and monitoring the operation state of the transfer device.
Preferably, in the present embodiment, the storage layer region 2 includes N Y-directional storage layers 2a (each layer may be numbered N1, N2, … … nn) stacked in the Z direction and K X-directional storage layers 2b (each layer may be numbered K1, K2, … … kk) stacked in the Z direction; each Y-direction storage layer 2a comprises H rows of Y-direction storage layer channels 2a1 (in a rectangular shape, each row may be numbered as H1, H2, … … hh) arranged in the X-direction, each row of Y-direction storage layer channels 2a1 is composed of R rows of Y-direction storage layer channel units 2a11 (each row may be numbered as R1, R2, … … rr); each X-direction storage layer 2b comprises P rows of X-direction storage layer channels 2b1 (in a rectangular shape, each row may be numbered as P1, P2, … … pp) arranged in the Y-direction, each row of X-direction storage layer channels 2b1 consists of F rows of X-direction storage layer channel units 2b11 (each row may be numbered as F1, F2, … … ff); the energy storage layer region 1 comprises M Y-direction energy storage layers 1a (the number of each layer can be M1, M2 and … … mm) which are distributed in a stacking mode in the Z direction and Q X-direction energy storage layers 1b (the number of each layer can be Q1, Q2 and … … qq) which are distributed in the stacking mode in the Z direction, the Y-direction energy storage layers 2a and the Y-direction energy storage layers 1a respectively correspond in the Z direction, and H-column Y-direction energy storage layer channels 2a1 which are sequentially arranged in the X direction are respectively and correspondingly connected with the corresponding Y-direction energy storage layer channels 1a1 (which are rectangular) through a plurality of first lifting channels 4a2 which are sequentially arranged in the X direction; the X-direction storage layer 2b and the X-direction energy storage layer 1b are respectively corresponding in the Z direction, and the P rows of X-direction storage layer channels 2b1 sequentially arranged in the Y direction are respectively and correspondingly connected with the corresponding X-direction energy storage layer channels 1b1 (rectangular) through a plurality of second lifting channels 4b2 sequentially arranged in the Y direction, that is, each Y-direction storage layer channel 2a1 and each Y-direction energy storage layer channel 1a1 are respectively in one-to-one correspondence in the Z direction, and each X-direction storage layer channel 2b1 and each X-direction energy storage layer channel 1b1 are respectively in one-to-one correspondence in the Z direction; n, K, H, R, P, F, M, Q are positive integers greater than 1, and thus unique numbers can be respectively formed for each storage layer channel unit and each energy storage layer channel unit; the skilled person can select the specific amount according to actual needs, and the embodiment does not limit this. Specifically, in this embodiment, referring to fig. 2, 3, 5 and 6, the energy storage layer region 1 includes 3 (i.e., M ═ 3) Y-direction energy storage layers 1a (respectively labeled as M1, M2 and M3) having the same structure and distributed in a stacked manner in the Z direction, and 3 (i.e., Q ═ 3) X-direction energy storage layers 1b (respectively labeled as Q1, Q2 and Q3) having the same structure and distributed in a stacked manner in the Z direction, and the storage layer region 2 includes 3 (i.e., N ═ 3) Y-direction storage layers 2a (respectively labeled as N1, N2 and N3) having the same structure and distributed in a stacked manner in the Z direction, and 3 (i.e., K ═ 3) X-direction storage layers 2b (respectively labeled as K1, K2 and K3) having the same structure and distributed in a stacked manner in the Z direction.
Preferably, in other embodiments, in order to further implement energy storage capacity expansion, in the energy storage layer region 1, the Y-direction energy storage layer 1a and the X-direction energy storage layer 1b are arranged in a single-layer cross-type stacked distribution manner; in the storage layer region 2, the Y-direction storage layer 2a and the X-direction storage layer 2b are arranged in a single-layer cross-type stacking distribution, that is, the single Y-direction energy storage layer 1a and the single X-direction energy storage layer 1b are arranged in a mutually perpendicular alternating stacking distribution in the Z-direction, and correspondingly, the single Y-direction storage layer 2a and the single X-direction storage layer 2b are arranged in a mutually perpendicular alternating stacking distribution in the Z-direction; preferably, an intermediate layer region 3 is arranged between the energy storage layer region 1 and the energy storage layer region 2, the intermediate layer region 3 is used as an expansion region of the energy storage layer region 1 and the energy storage layer region 2 in the Z direction, and in actual work, the intermediate layer region 3 can be used as a Z-direction expansion unit of the energy storage layer region 1 and the energy storage layer region 2 to increase gravity energy storage capacity; preferably, in the embodiment, the gravity blocks 8 adopted in the energy storage layer area 1 and the energy storage layer area 2 are identical in shape and weight and are mainly made of sand and carbon steel.
Preferably, in this embodiment, the energy storage operation database includes a plurality of operation routes running from the Y-direction storage layer channel units located at the Z-direction ni layer, the Y-direction ri column and the X-direction hi column to the Y-direction energy storage layer channel units located at the Z-direction mi layer, the Y-direction ri column and the X-direction hi column, and a plurality of operation routes running from the X-direction storage layer channel units located at the Z-direction ki layer, the X-direction fi column and the Y-direction pi column to the X-direction energy storage layer channel units located at the Z-direction qi layer, the X-direction fi column and the Y-direction pi column; the transfer device returns to a zero position after completing transfer according to the operation route instruction and waits for the next operation route instruction; the power generation operation database comprises a plurality of operation routes which run from Y-direction energy storage layer channel units positioned on a Z-direction mi layer, a Y-direction ri column and an X-direction hi column to Y-direction energy storage layer channel units positioned on a Z-direction ni layer, a Y-direction ri column and an X-direction hi column, and a plurality of operation routes which run from X-direction energy storage layer channel units positioned on a Z-direction qi layer, an X-direction fi column and a Y-direction pi column to X-direction energy storage layer channel units positioned on a Z-direction ki layer, an X-direction fi column and a Y-direction pi column; the transfer device returns to the zero position after transferring according to the operation route instruction and waits for the next operation route instruction; wherein ni is any positive integer between 1 and N, ri is any positive integer between 1 and R, hi is any positive integer between 1 and H, mi is any positive integer between 1 and M, ki is any positive integer between 1 and K, fi is any positive integer between 1 and F, pi is any positive integer between 1 and P, and qi is any positive integer between 1 and Q.
Referring to fig. 7, 8 and 9, in the present embodiment, the transfer device includes track beams 51 (a light-weight planar frame structure may be specifically adopted) respectively and correspondingly disposed in each Y-direction storage layer passage 2a1, each X-direction storage layer passage 2b1, each Y-direction energy storage layer passage 1a1 and each X-direction energy storage layer passage 1b1, and a transfer vehicle 52 for transferring the gravity block 8 is mounted on each track beam 51 in a relatively displaceable manner; wherein, the tail end of the track beam 51 close to the corresponding lifting unit extends towards the lifting unit to form a track beam extension section 53; preferably, the transfer vehicle 52 comprises a transfer vehicle body 52a for transferring the gravity block 8 and a suspension vehicle body 54 mounted on the track beam 51 in a suspension manner, the transfer device further comprises a first lifting motor module 4a1 and a second lifting motor module 4b1 respectively arranged in each first lifting channel 4a2 and each second lifting channel 4b2, the first lifting motor module 4a1 and the second lifting motor module 4b1 are respectively electrically connected with the operation controller, and the selective energy storage or power generation is realized by performing lifting transfer change on the gravity block 8.
Preferably, in the present embodiment, a guide rail 44, a slider 45 and a stiffness damping unit 46 are installed in each of the first lifting channel 4a2 and the second lifting channel 4b2, and the guide rail 44 is connected with the corresponding slider 45 for implementing Z-direction linear guiding; the first lifting motor module 4a1 and the second lifting motor module 4a2 respectively comprise a lifting generator 41, a lifting cable 42 is installed on the lifting generator 41, a manipulator 43 for selectively positioning and clamping the gravity block is arranged at the tail end of the lifting cable 42, and meanwhile, the manipulator 43 is connected with a sliding block 45 through a rigidity damping unit 46 and used for restraining the rotation and translation freedom degrees of the manipulator 43 and the gravity block 8; wherein, the manipulator 43 comprises a manipulator long arm 43a which can be selectively opened and is arranged on a support rod 43b, and an expansion rod 43c is arranged between the support rod 43b and the lifting rope 42; particularly preferably, in the present embodiment, the manipulator 43 relies on the manipulator long arm 43a to open an angle a equal to 30 °, and under the action of the guide rail 44, the slider 45 and the stiffness damping unit 46, automatic positioning is realized, and the telescopic rod 43c and the support rod 43b are used for realizing automatic gripping of the gravity block 8, thereby realizing positioning and clamping of the gravity block 8.
Particularly preferably, the trolley body 52a is provided with a gear 52c driven by a trolley motor 52b, and the gear 52c is correspondingly matched with a rack 51a arranged on the track beam 51 to realize displacement guidance of the trolley body 52a on the track beam 51; the suspension vehicle body 54 is provided with a vertical telescopic column 54a, the end part of the vertical telescopic column 54a is provided with a horizontal telescopic pin 54b, and the horizontal telescopic pin 54b is selectively in limit installation and matching with the gravity block 8; meanwhile, the suspension vehicle body 54 is provided with a gear 54e driven by a suspension vehicle motor 54d, and the gear 54e is correspondingly matched with a rack 51a arranged on the track beam 51 to realize the transfer displacement guide of the suspension vehicle body 54 on the track beam 51; particularly preferably, in the embodiment, the transfer trolley body 52a and the suspension trolley body 54 both adopt round steel wheels 55, so that the resistance is reduced, and the mechanical property and the service life are increased.
In actual work, the horizontal telescopic pin 54b of the suspension vehicle body 54 moves in the Y direction or the X direction to selectively fix or separate the gravity block 8 corresponding to the horizontal telescopic pin (the upper end part of the gravity block 8 is provided with the horizontal limiting part 8a), and the vertical telescopic column 54a is matched with the horizontal telescopic pin 54b and the gravity block 8 to realize positioning, fixing, separating or lifting (the limit control effect is realized through the travel switch 6 a), so that the gravity block 8 is transported in a short distance through the suspension vehicle body 54 and the transport vehicle 52 is matched with the transport vehicle to finish the transport effect of the gravity block 8 in the energy storage layer channel or the storage layer channel, the embodiment adopts a gear and rack meshing transmission mode driven by a motor, the complexity of transport line machinery and electrical equipment is reduced, the transport process is simple, the transport efficiency is high, the transport is reliable and convenient to maintain, the capacity expansion is easy, wherein the first lifting motor module 4a1, the second lifting motor module 4b1, the transfer trolley motor 52b, the suspension trolley motor 54d and the stroke development switch 6a realize control coordination through an operation controller, so that the energy storage or power generation effect with high capacity and high operation effect is realized; specifically, the embodiment can be used as the first-stage engineering power generation capacity, and can further realize second-stage capacity expansion or more-stage capacity expansion in the X direction or the Y direction.
In the embodiment, the transfer trolley 52 is provided with a visual unit which is in communication connection with the operation controller, and the track beam 51 is provided with a coordinate label which is used for the visual unit to position and identify the destination coordinate of the transfer trolley; during actual operation, each destination coordinate of the transfer trolley 52 is identified and positioned through at least two coordinate labels; the coordinate tags include destination deceleration coordinate tags and destination correction coordinate tags, preferably, the destination deceleration coordinate tag and the destination correction coordinate tag corresponding to each destination coordinate are arranged on the same horizontal plane of the track beam 51 at an interval, wherein the interval between the destination deceleration coordinate tag and the destination correction coordinate tag is 0.1-0.4 m, specifically, a bar code or a two-dimensional code or other identification forms in a rectangular or square shape or other shapes can be adopted, the center of the visual lens of the visual unit is arranged at the same height as the center of each coordinate tag, and the identification accuracy of the visual unit is further ensured.
Preferably, the identification and positioning process in this embodiment includes the following steps:
s10), recognizing the destination deceleration coordinate tag by the vision unit when the transfer vehicle 52 is running;
s20), when the destination deceleration coordinate label is identified, the running controller controls the transfer trolley 52 to decelerate at a constant speed until the destination deceleration coordinate label is stopped, and during the period, the destination correction coordinate label is identified by the vision unit;
s30), when the destination correction coordinate tag is recognized, the operation controller controls the transfer vehicle 52 to proceed to step S50); when the destination correction coordinate tag cannot be recognized, the operation controller controls the transfer vehicle 52 to proceed to step S40);
s40), the operation controller sends a position adjusting instruction to the transfer trolley 52 according to the actual position of the destination correction coordinate tag, the transfer trolley 52 performs left side or right side displacement adjustment (specifically, the left side can be selected to perform backward movement at the speed of 0.005m/S, and the right side can be selected to perform forward movement at the speed of 0.005 m/S) until the destination correction coordinate tag can be identified, and then the operation goes to step S50);
s50), the operation controller sends a gravity block releasing instruction to the transfer trolley 52, and the transfer trolley 52 executes the instruction to complete the destination coordinate identification and positioning of the transfer trolley; wherein, the transfer vehicles 52 in the identification positioning process each include a transfer vehicle body 52a and a suspension vehicle body 54.
The transfer vehicle 52 in this embodiment may perform coordinate setting according to the unique numbers corresponding to each storage layer channel unit and each energy storage layer channel unit, specifically, in this embodiment, the initial calibration coordinates (as zero positions) of the transfer vehicle body 52a and the suspension vehicle body 54 in the energy storage layer area 1 may be set as: m (i/2+1, i) r1h1, setting the initial calibration coordinates (as zero positions) of the trolley body 52a and the trolley body 54 located in the storage layer area 2 to: n (1, j/2) r1h 1:
to further explain the operation process of the present embodiment, the present embodiment further develops: in the embodiment, when executing the operation route command in the energy storage operation database, the transfer device lifts the gravity block 8 located at the initial coordinate position (specifically, n (1, j/2) r2h1) in the storage layer area 2 through the suspension vehicle body 54 and transfers the gravity block onto the transfer vehicle body 52 a; the transfer trolley body 52 transfers the gravity block 8 to the corresponding lifting channel 41a/41b, the gravity block 8 is lifted and transferred to a target position of the energy storage layer area 1 (the transfer trolley body 52a corresponding to the energy storage layer area 1 runs to the position below the gravity block 8 at this time) through a lifting motor module in the lifting channel 41a/41b, and is released onto the transfer trolley body 52a, the transfer trolley body 52a transfers the gravity block 8 to a preset position (specifically, m (j/2+1, j) r1h1), and then transfers the gravity block 8 to a target coordinate position (specifically, m (j/2+1, j) rih1) through the corresponding suspension trolley body, and the transfer trolley returns to a zero position, so that primary energy storage of the Y to the ith row and the X to the 1 st row is completed; referring to the implementation process, the energy storage from the Y to the ith column, the X to the 2 nd column, the 3 rd column and the hh column can be further completed, and the energy storage from the Y to the i-1 st column, the i-2 nd column and the 1 st column, the X to the 1 st column can also be further completed; also with reference to this implementation, energy storage in the X direction can be accomplished.
When executing the operation route instruction in the power generation operation database, the transfer device lifts the gravity block 8 located at the initial coordinate position (specifically, m (j/2+1, j) r2h1) in the energy storage layer area 1 through the suspension vehicle body 54 and transfers the gravity block to the transfer vehicle body 52 a; the transfer trolley body 52a transfers 8 the gravity block to the corresponding lifting channel 41a/41b, the gravity block 8 is transferred to a target position of the storage layer area 2 by descending the gravity block 8 through a lifting motor module in the lifting channel 41a/41b (the corresponding transfer trolley body 52a in the storage layer area 2 runs to the lower part of the gravity block 8 at this time), and is released to the corresponding transfer trolley body 52a in the storage area, the transfer trolley body 52a transfers the gravity block 8 to a preset position (specifically, m (1, j/2) r1h1), and then transfers the gravity block 8 to a target coordinate position (specifically, m (1, j/2) rih1) by the corresponding suspension trolley body, and the transfer trolley returns to a zero position, so that primary power generation of the Y to the ith row and the X to the 1 st row is completed; referring to the present embodiment, the power generation from the Y to the ith row, X to the 2 nd row, 3 rd row, and up to the hh th row can be further completed, and the power generation from the Y to the i-1 st row, i-2 nd row, and up to the 1 st row, X, and 1 st row can also be further completed; referring also to the present implementation, power generation in the X direction may be accomplished.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment includes only a single embodiment, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the embodiments may be appropriately combined to form other embodiments understood by those skilled in the art.
Claims (10)
1. An efficient operation control method for gravity energy storage, characterized in that the operation control method comprises:
when an energy storage instruction of the local central controller is received, the operation controller calls a pre-stored energy storage operation database as an operation route instruction of the transfer device, and drives the transfer device to transfer the gravity block from the storage layer area to the energy storage layer area to finish energy storage;
when a power generation instruction of the local central controller is received, the operation controller calls a pre-stored power generation operation database as an operation route instruction of the transfer device, and the transfer device is driven to transfer the gravity block from the energy storage layer area to the energy storage layer area, so that power generation is completed.
2. The efficient operation control method according to claim 1, wherein the storage layer area includes N Y-direction storage layers stacked in the Z-direction and K X-direction storage layers stacked in the Z-direction; each Y-direction storage layer comprises H rows of Y-direction storage layer channels which are sequentially arranged in the X direction, and each row of Y-direction storage layer channels consists of R rows of Y-direction storage layer channel units; each X-direction storage layer comprises P rows of X-direction storage layer channels which are sequentially arranged in the Y direction, and each row of X-direction storage layer channels consists of F rows of X-direction storage layer channel units;
the energy storage layer region comprises M Y-direction energy storage layers which are distributed in a stacking mode in the Z direction and Q X-direction energy storage layers which are distributed in the Z direction in a stacking mode; the Y-direction storage layer and the Y-direction energy storage layer respectively correspond to each other in the Z direction, and H-column Y-direction storage layer channels sequentially arranged in the X direction are respectively and correspondingly connected with the corresponding Y-direction energy storage layer channels through a plurality of first lifting channels sequentially arranged in the X direction; the X-direction storage layer and the X-direction energy storage layer respectively correspond to each other in the Z direction, and P rows of X-direction storage layer channels sequentially arranged in the Y direction are respectively and correspondingly connected with the corresponding X-direction energy storage layer channels through a plurality of second lifting channels sequentially arranged in the Y direction;
wherein N, K, H, R, P, F, M, Q are all positive integers greater than 1.
3. The efficient operation control method according to claim 2, wherein the energy storage operation database comprises a plurality of operation routes from a Y-direction storage layer channel unit located at a Z-direction ni layer, a Y-direction ri column and an X-direction hi column to a Y-direction energy storage layer channel unit located at a Z-direction mi layer, a Y-direction ri column and an X-direction hi column, and a plurality of operation routes from an X-direction storage layer channel unit located at a Z-direction ki layer, an X-direction fi column and a Y-direction pi column to an X-direction energy storage layer channel unit located at a Z-direction qi layer, an X-direction fi column and a Y-direction pi column; the transfer device returns to a zero position after completing transfer according to the operation route instruction and waits for the next operation route instruction;
the power generation operation database comprises a plurality of operation routes which run from Y-direction energy storage layer channel units positioned on a Z-direction mi layer, a Y-direction ri column and an X-direction hi column to Y-direction energy storage layer channel units positioned on a Z-direction ni layer, a Y-direction ri column and an X-direction hi column, and a plurality of operation routes which run from X-direction energy storage layer channel units positioned on a Z-direction qi layer, an X-direction fi column and a Y-direction pi column to X-direction energy storage layer channel units positioned on a Z-direction ki layer, an X-direction fi column and a Y-direction pi column; the transfer device returns to a zero position after transferring according to the operation route instruction and waits for the next operation route instruction;
wherein ni is any positive integer between 1 and N, ri is any positive integer between 1 and R, hi is any positive integer between 1 and H, mi is any positive integer between 1 and M, ki is any positive integer between 1 and K, fi is any positive integer between 1 and F, pi is any positive integer between 1 and P, and qi is any positive integer between 1 and Q.
4. The efficient operation control method according to claim 2, wherein when the electric energy surplus occurs on the grid side and reaches a certain threshold, the grid dispatching center sends an energy storage instruction to the local central controller; when the electric energy gap appears on the power grid side and reaches a certain threshold value, the power grid dispatching center sends a power generation instruction to the local central controller, the local central controller is in control connection with the operation controller, the operation controller is in control connection with the transfer device and is used for controlling and monitoring the operation state of the transfer device.
5. The efficient operation control method according to claim 2, wherein the transfer device comprises track beams respectively and correspondingly arranged in each Y-direction storage layer channel, each X-direction storage layer channel, each Y-direction energy storage layer channel and each X-direction energy storage layer channel, and a transfer vehicle for transferring the gravity block is arranged on each track beam in a relatively displaceable manner; the transfer trolley is provided with a visual unit in communication connection with the operation controller, and the track beam is provided with a coordinate label for positioning and identifying the destination coordinate of the transfer trolley by the visual unit.
6. The efficient operation control method according to claim 5, wherein each destination coordinate of the transfer vehicle is identified and located by at least two coordinate tags; the coordinate tags comprise a destination deceleration coordinate tag and a destination correction coordinate tag, and the identification and positioning process comprises the following steps:
s10), when the transfer trolley runs, the destination deceleration coordinate label is identified through the vision unit;
s20), when the destination deceleration coordinate label is recognized, the operation controller controls the transfer vehicle to decelerate at a constant speed until stopping, during which the destination correction coordinate label is recognized by the vision unit;
s30), when the destination correction coordinate tag is recognized, the operation controller controls the transfer vehicle to proceed to step S50); when the destination corrected coordinate tag cannot be recognized, the operation controller controls the transfer vehicle to proceed to step S40);
s40), the operation controller sends a position adjusting instruction to the transfer trolley according to the actual position of the destination correction coordinate tag, the transfer trolley performs left side or right side displacement adjustment until the destination correction coordinate tag can be identified, and then the operation controller enters the step S50).
S50), the running controller sends a gravity block releasing instruction to the transfer trolley, and the transfer trolley executes the instruction to complete the destination coordinate identification and positioning of the transfer trolley.
7. The efficient operation control method according to claim 6, wherein the destination deceleration coordinate tag and the destination correction coordinate tag corresponding to each destination coordinate are spaced apart from each other on the same horizontal plane of the track beam, wherein the distance between the destination deceleration coordinate tag and the destination correction coordinate tag is 0.1-0.4 m, and the center of the vision lens of the vision unit is disposed at the same height as the center of each coordinate tag.
8. The efficient operation control method according to claim 5, wherein the transfer vehicle comprises a transfer vehicle body for transferring the gravity block and a suspension vehicle body mounted on the rail beam in a suspension manner, the transfer device further comprises a first lifting motor module and a second lifting motor module respectively arranged in each first lifting channel and each second lifting channel, the first lifting motor module and the second lifting motor module are respectively electrically connected with the operation controller, and the selective energy storage or power generation is realized by performing lifting transfer change on the gravity block; wherein the content of the first and second substances,
when the transfer device executes a running route instruction in the energy storage running database, the gravity block located at the initial coordinate position in the storage layer area is lifted by the suspension vehicle body and transferred to the transfer vehicle body; the transfer trolley body transfers the gravity block to a corresponding lifting channel, the gravity block is lifted and transferred to a target position of the energy storage layer area through a lifting motor module in the lifting channel and is released to the corresponding transfer trolley body positioned on the energy storage layer area, the transfer trolley body transfers the gravity block to a preset position, then the gravity block is transferred to a target coordinate position through a corresponding suspension trolley body, and the transfer trolley returns to a zero position;
when the transfer device executes an operation route instruction in the power generation operation database, the gravity block located at the initial coordinate position in the energy storage layer area is lifted by the suspension vehicle body and transferred to the transfer vehicle body; the transfer trolley body transfers the gravity block to a corresponding lifting channel, the gravity block descends to a target position of the storage layer area through a lifting motor module in the lifting channel and is released to a corresponding transfer trolley body located in the energy storage area, the transfer trolley body transfers the gravity block to a preset position, then the gravity block is transferred to a target coordinate position through a corresponding suspension trolley body, and the transfer trolley returns to a zero position.
9. The efficient operation control method according to claim 8, wherein the trolley body is provided with a gear driven by a trolley motor, and the gear is correspondingly matched with a rack arranged on a track beam to realize displacement guidance of the trolley body on the track beam; the utility model discloses a suspension car body is equipped with vertical flexible post, the tip of vertical flexible post is installed to the tie to flexible round pin, tie to flexible round pin selectivity and the spacing installation cooperation of gravity piece, simultaneously the gear by suspension car motor drive is installed to the suspension car body, the gear corresponds the cooperation with the rack of installing on the track roof beam, and the realization is right the suspension car body is in transfer displacement direction on the track roof beam.
10. The efficient operation control method according to claim 8, wherein each lifting channel is internally provided with a guide rail, a slide block and a rigidity damping unit, and the guide rail is connected with the corresponding slide block for realizing Z-direction linear guiding; the first lifting motor module and the second lifting motor module respectively comprise a lifting generator, a lifting cable is mounted on the lifting generator, and a manipulator for selectively positioning and clamping the gravity block is arranged at the tail end of the lifting cable; the manipulator comprises a manipulator long arm which can be selectively opened and is arranged on a support rod, and a telescopic rod is arranged between the support rod and the lifting rope; meanwhile, the manipulator is connected with the sliding block through the rigidity damping unit and used for restraining the rotation and translational freedom degree of the manipulator and the gravity block.
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