WO2023238023A1 - Système de production et de stockage d'énergie électrique - Google Patents

Système de production et de stockage d'énergie électrique Download PDF

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Publication number
WO2023238023A1
WO2023238023A1 PCT/IB2023/055814 IB2023055814W WO2023238023A1 WO 2023238023 A1 WO2023238023 A1 WO 2023238023A1 IB 2023055814 W IB2023055814 W IB 2023055814W WO 2023238023 A1 WO2023238023 A1 WO 2023238023A1
Authority
WO
WIPO (PCT)
Prior art keywords
fluid
electric power
turbines
reservoir
canal
Prior art date
Application number
PCT/IB2023/055814
Other languages
English (en)
Inventor
Narayan BHARDWAJ
Balram BHARDWAJ
Original Assignee
Maclec Technical Project Laboratory Private Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Maclec Technical Project Laboratory Private Limited filed Critical Maclec Technical Project Laboratory Private Limited
Publication of WO2023238023A1 publication Critical patent/WO2023238023A1/fr

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Classifications

    • 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
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B17/00—Other machines or engines
    • F03B17/005—Installations wherein the liquid circulates in a closed loop ; Alleged perpetua mobilia of this or similar kind
    • 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
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B17/00—Other machines or engines
    • F03B17/06—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head"
    • F03B17/062—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head" with rotation axis substantially at right angle to flow direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/40—Use of a multiplicity of similar components

Definitions

  • the present disclosure generally relates to a means to generate and store electric power.
  • the present disclosure relates to a means to store generated electric power using surface hydrokinetic means.
  • renewable energy systems are inherently infirm and non-dispatchable due to their intermittency and their seasonal and/or diurnal variation. For example, solar power generation is possible only during sunshine hours with peak generation around noon and the generation may vary with seasons, with high output during the months of march, up until July. In another example, wind power peaks in the evening hours, and is generally higher during the monsoon. Hence, reliance on only renewable energy, such as solar or wind power may place a risk on the security and stability of the grid, since with higher renewable penetration the probability of voltage and frequency swings in the network will increase.
  • An object of the present invention is to provide a means to generate and store electric power using surface hydrokinetic technique.
  • Another object of the present disclosure is to provide a means to store intermittently generated energy, or available surplus energy.
  • Another object of the present invention is to provide a means to generate and store electric power that is highly efficient.
  • Another object of the present invention is to provide a means for long duration storage in bulk capacity.
  • Another object of the present invention is to provide a means to generate and store electric power that is ecologically friendly.
  • Another object of the present invention is to provide a means to generate and store electric power that is sustainable and economical.
  • Another object of the present invention is to provide a means to generate and store electric power that can be constructed at any location using easily available materials.
  • the present disclosure generally relates to a means to generate and store electric power.
  • the present disclosure relates to a means to store generated electric power using surface hydrokinetic means.
  • the present disclosure provides a system for electric power generation and storage.
  • the system includes an upper reservoir adapted for storage of a fluid, the upper reservoir arranged such that, a fluid stored in the upper reservoir is at a first head.
  • the system further includes a lower reservoir adapted to receive the stored fluid from the upper reservoir, the lower reservoir arranged such that, a fluid in the lower reservoir is at a second head, wherein the first head is greater than the second head.
  • the system further includes a fluid canal fluidically coupling the upper reservoir and the lower reservoir, the fluid canal having a gradient from the upper reservoir to the lower reservoir, such that fluid flowing through the fluid canal flows at a predefined velocity.
  • the system further includes one or more turbines configured along the fluid canal, the one or more turbines configured to interact with the flowing fluid to generate electric power.
  • the system further includes a pump fluidically coupled to the lower reservoir and the upper reservoir, the pump configured to recirculate the fluid from the lower reservoir to the upper reservoir.
  • a cumulative electric power generated by the one or more turbines due to flow of a unit volume of the fluid from the upper reservoir to the lower reservoir is greater than an electric power consumed by the pump to re-circulate the unit volume of the fluid from the lower reservoir to the upper reservoir.
  • the fluid includes water.
  • the system further includes an electric power module configured to store electric power generated by the one or more turbines.
  • the electric power module is electrically coupled to a power grid and is configured to supply at least a portion of the electric power generated by the one or more turbines to the power grid.
  • the electric power module is configured to supply electric power to operate the pump.
  • the system further includes one or more sources of electric power configured to supply electric power to operate the pump, the one or more sources of electric power including any one or more of solar power, wind power, hydroelectric power, and grid power.
  • the system further includes a gradient regulator configured with the fluid canal, the gradient regulator configured to vary the gradient of the fluid canal.
  • the system further includes one or more bell mouth structures configured to vary a velocity of the fluid flowing in the fluid canal.
  • the one or more turbines are any one or a combination of fixed bed turbine and floating bed turbine.
  • the one or more turbines are surface hydrokinetic turbines.
  • FIG. 1 illustrates a schematic representation of a layout of a hydrokinetic system for power generation and storage, according to an embodiment of the present disclosure
  • FIG. 2 illustrates a schematic view of upper and lower reservoirs of the system of FIG. 1, according to an embodiment of the present disclosure
  • FIGs. 3A and 3B illustrate schematic views of a fluid canal including one or more turbines, according to an embodiment of the present disclosure
  • FIGs. 4A to 4C illustrate a fixed bed type of turbine of the system of FIG. 1, according to an embodiment of the present disclosure
  • FIGs. 5A to 5C illustrate a moving bed type of turbine of the system of FIG. 1, according to an embodiment of the present disclosure
  • FIG. 6 illustrates a schematic representation of an electric power module, according to an embodiment of the present disclosure
  • FIG. 7 illustrates a schematic representation of a pumping unit of the system, including a pump, according to an embodiment of the present disclosure.
  • FIG. 8 illustrates an exemplary schematic representation of the system of FIG. 1 along with solar panels and wind turbines.
  • the present disclosure provides a system for electric power generation and storage.
  • the system includes an upper reservoir adapted for storage of a fluid, the upper reservoir arranged such that, a fluid stored in the upper reservoir is at a first head.
  • the system further includes a lower reservoir adapted to receive the stored fluid from the upper reservoir, the lower reservoir arranged such that, a fluid in the lower reservoir is at a second head, wherein the first head is greater than the second head.
  • the system further includes a fluid canal fluidically coupling the upper reservoir and the lower reservoir, the fluid canal having a gradient from the upper reservoir to the lower reservoir, such that fluid flowing through the fluid canal flows at a predefined velocity.
  • the system further includes one or more turbines configured along the fluid canal, the one or more turbines configured to interact with the flowing fluid to generate electric power.
  • the system further includes a pump fluidically coupled to the lower reservoir and the upper reservoir, the pump configured to re- circulate the fluid from the lower reservoir to the upper reservoir.
  • a cumulative electric power generated by the one or more turbines due to flow of a unit volume of the fluid from the upper reservoir to the lower reservoir is greater than an electric power consumed by the pump to re-circulate the unit volume of the fluid from the lower reservoir to the upper reservoir.
  • the fluid includes water.
  • the system further includes an electric power module configured to store electric power generated by the one or more turbines.
  • the electric power module is electrically coupled to a power grid and is configured to supply at least a portion of the electric power generated by the one or more turbines to the power grid.
  • the electric power module is configured to supply electric power to operate the pump.
  • the system further includes one or more sources of electric power configured to supply electric power to operate the pump, the one or more sources of electric power including any one or more of solar power, wind power, hydroelectric power, and grid power.
  • the system further includes a gradient regulator configured with the fluid canal, the gradient regulator configured to vary the gradient of the fluid canal.
  • the system further includes one or more bell mouth structures configured to vary a velocity of the fluid flowing in the fluid canal.
  • the one or more turbines are any one or a combination of fixed bed turbine and floating bed turbine.
  • the one or more turbines are surface hydrokinetic turbines.
  • FIG. 1 illustrates a schematic representation of a layout of a hydrokinetic system 100 for power generation and storage, according to an embodiment of the present disclosure.
  • the system 100 includes an upper reservoir 102, a lower reservoir 104, a fluid canal 106, one or more turbines 108, and a pump 110.
  • the system 100 further includes any one or more sources 112 of fluid.
  • the system 100 further includes one or more sources of electric power.
  • the one or more sources of electric power may be renewable sources (such as solar panels 122, wind turbine 124, hydroelectric turbine 126, etc.) or a conventional source such as a power grid 128.
  • Power is stored in fluid as potential energy. As the fluid moves from a region of higher head to a region of lower head, the potential energy of the fluid gets converted to kinetic energy, which may be used to drive the one or more turbines 108 to generate electric power.
  • the system 100 is further designed such that the fluid is re-circulated, from the region of lower head to the region of higher head to recharge the potential energy of the fluid.
  • the system 100 is designed such that the energy generated by the conversion of the potential energy of fluid to kinetic energy is greater that the energy required to re-circulate the fluid, thus enabling the system 100 to have a net positive power output.
  • a portion of the power generated by the one or more turbines 108 may be used.
  • any of the one or more sources of electric power may be used.
  • the system 100 may be situated in any location, even where there is limited resource available for the fluid. As a result, the power generation by the system 100 may be regular, and reliable.
  • the power output capacity of the system 100 may be scalable by increasing a quantity of stored fluid at the higher head. In some embodiments, the power output of the system 100 may range from about 500 Watt-hours to about 100 Gigawatt hours.
  • the fluid is water.
  • the water used may be from any natural or artificially created source, such as streams, without limitations, irrigation canals, rivers, rivulets, sewage canals, downstream/upstream power canals of any hydro-electric power plants, conventional pump storage power plant, lakes, dams, etc.
  • the ecological impact of the system 100 may be low. Further, due to the use of existing water infrastructure to source the water, costs involved in setting us such a system 100 may also be feasible.
  • FIG. 2 illustrates a schematic view of the upper and lower reservoirs 102, 104 of the system 100, according to an embodiment of the present disclosure.
  • the upper reservoir 102 is adapted for storage of the fluid.
  • the upper reservoir 102 is arranged such that the fluid stored in the upper reservoir 102 has a first potential energy, or is at a first head.
  • the lower reservoir 104 is adapted for storage of the fluid.
  • the lower reservoir 104 is arranged such that the fluid in the lower reservoir 104 has a second potential energy, or is at a second head.
  • the first head is greater than the second head. In some embodiments, the first head is greater than the second head by as low as about 10 meters.
  • the upper and lower reservoirs 102, 104 may be any natural or artificial structure, such as, without limitations, existing/abandoned mines, ponds, any barrage/dam/reservoir/catchment of existing hydro-electric power plants, effluent catchment/sewage treatment plant, etc. Further, the upper and lower reservoirs 102, 104 may be constructed of any material, such as, without limitations, soil, sand, bricks, PCC, RCC, composite blocks, pre-cast panels, recycled material, etc. Furthermore, the upper and lower reservoirs 102, 104 may be open or covered structure. In some embodiments, the upper and lower reservoirs 102, 104 are covered structures, in order to limit loss of fluid due to evaporation. The upper and lower reservoirs may be of any dimensions/capacity, based on application requirements.
  • the fluid canal 106 is adapted to fluidically couple the upper reservoir 102 and the lower reservoir 104. Fluid stored in the upper reservoir 102 flows to the lower reservoir 104 via the fluid canal 106.
  • the fluid canal 106 has a predefined slope to allow the fluid stored in the upper reservoir 102 to flow to the lower reservoir 104 due to gravity. In some embodiments, the slope of the fluid canal 106 may be between about 15 mm/km and about 5 m/km. Based on the slope of the fluid canal 106, a length of the fluid canal 106 may be adequately sufficient.
  • the fluid canal 106 may be constructed in the form of a helix, as shown in FIG. 2.
  • the fluid canal 106 may also have any of round, circular, semi-circular, and zig-zag configurations.
  • the fluid canal 106 may be constructed such that it has any dimensions and mechanical/hydraulic properties based on application requirements.
  • the fluid canal 106 may have a slope that can be varied manually to vary a discharge of the fluid through the fluid canal 106.
  • the fluid canal 106 may be a monolithic structure.
  • the fluid canal 106 may be segmented. Each of the segments may be individually, manually controlled to vary their respective slopes.
  • the fluid canal 106 may be constructed of any material, such as, without limitations, soil, sand, bricks, PCC, RCC, composite blocks, pre-cast panels, recycled material, etc.
  • the fluid canal 106 further includes a gradient regulator 114.
  • the gradient regulator 114 is an electro-mechanical apparatus coupled to the fluid canal 106, and is configured to vary the slope of the fluid canal 106. The slope may be varied by adjusting any one or more of bed slope of the fluid canal 106, width of the fluid canal 106, and shape of the fluid canal 106. Further, in some embodiments, the gradient regulator 114 may also vary mechanical/hydraulic properties of the fluid canal 106, based on application requirement.
  • the fluid canal 106 may further include specially designed bell mouth structures 116. The bell mouth structures may be configured to streamline the fluid flow in the fluid canal 106 and to vary a velocity of flow of fluid in the fluid canal 106.
  • FIGs. 3A and 3B illustrate schematic views of the fluid canal 106 including one or more turbines 108, according to an embodiment of the present disclosure.
  • the system 100 further includes the one or more turbines 108 provided in the fluid canal 106.
  • the turbines 108 may be arranged in the fluid canal 106 at a predefined distance from each other.
  • the one or more turbines 108 may be arranged in a wake recovery distance from each other.
  • the one or more turbines 108 may be specifically designed to operate at low flow rates of the fluid and at shallow depths.
  • each of the turbines 108 may be designed to generate power in the range of kW-scale to grid scale MW.
  • the one or more turbines 108 do not consume any fluid, and do not require any additional civil infrastructure.
  • the one or more turbines 108 are passive structures and interact only with the surface velocity of the fluid flowing in the fluid canal 106.
  • the one or more turbines 108 are designed to operate silently and reliably.
  • the one or more turbines 108 include a Hydrofoil cross flow type Hydrokinetic Turbine fitted on a buoyant floating/fixed type bell mouth structure.
  • the one or more turbines 108 may have a plug-and-play design and multiple turbines may be installed in any section of the fluid canal 106, as per requirements.
  • the one or more turbines 108 are designed so as to generate a minimum wake during operation.
  • FIGs. 4A to 4C illustrate a fixed bed type of turbine 108-1, according to an embodiment of the present disclosure.
  • the turbine 108-1 includes a turbine rotor 402, a turbine gear box 404, a turbine generator 406, a turbine mounting 408, turbine blades 410, a turbine submergence adjustment assembly 412, and a turbine bell mouth 414.
  • FIGs. 5A to 5C illustrate a moving bed type of turbine 108-2, according to an embodiment of the present disclosure.
  • the turbine 108-2 includes a turbine rotor 502, a turbine gear box 504, a turbine generator 506, a turbine mounting 508, turbine blades 510, and a turbine submergence adjustment assembly 512.
  • FIG. 6 illustrates a schematic representation of an electric power module 150, according to an embodiment of the present disclosure.
  • the system 100 further includes the electric power module 150.
  • the electric power module 150 may be electrically coupled to the one or more turbines, and may be responsible for storage and management of the power generated by the one or more turbines 108.
  • the electric power module 150 may be electrically coupled to a power grid 128, and may transmit at least a portion of the electric power generated by the one or more turbines 108 to the power grid 128.
  • FIG. 7 illustrates a schematic representation of a pumping unit 700 of the system, including a pump 110, according to an embodiment of the present disclosure.
  • the system 100 further includes the pump 110.
  • the pump 110 is fluidically coupled to the lower reservoir 104 and the upper reservoir 102.
  • the pump 110 is configured to re-circulate the fluid from the lower reservoir 104 to the upper reservoir 102. Since the head of the upper reservoir 102 is low, the pump 110 may not require a high electric power to transport the fluid from the lower reservoir 104 to the upper reservoir 102.
  • a cumulative electric power generated by the one or more turbines 108 due to flow of a unit volume of the fluid from the upper reservoir 102 to the lower reservoir 104 is greater than an electric power consumed by the pump 110 to re-circulate the unit volume of the fluid from the lower reservoir 104 to the upper reservoir 102.
  • the system 100 generates a net positive power output.
  • the pump 110 may draw electric power from the electric power module 150. In some embodiments, the pump 110 may draw electric power from alternate sources of power.
  • the system 100 may further include solar panels 122.
  • the solar panels 122 may be installed on areas such as surfaces of upper reservoir 102, lower reservoir 104, and the fluid canal 106.
  • the solar panels 122 may be coupled to the pump 110 and may supply electric power to the pump 110 for its operation.
  • the solar panels 122 may be coupled to the electric power module 150.
  • the system 100 may further include wind turbines 124.
  • the wind turbines 124 may be coupled to the pump 110 and may supply electric power to the pump 110 for its operation.
  • the wind turbines 124 may be coupled to the electric power module 150.
  • FIG. 8 illustrates an exemplary schematic representation of the system 100 along with solar panels 122, and wind turbines 124.
  • the system 100 may further include the hydro-electric turbine 126.
  • a conventional hydro-electric turbine 126 may be installed to generate electric power from the water body.
  • the hydro-electric turbine 126 may be coupled to the pump 110 and may supply electric power to the pump 110 for its operation.
  • the hydro-electric turbine 126 may be coupled to the electric power module 150.
  • the system 100 may further include the power grid 128.
  • the power grid 128 may be any, such as micro-grid, hybrid, etc.
  • the power grid 128 may be coupled to the pump 110 and may supply electric power to the pump 110 for its operation.
  • the power grid 128 may be coupled to the electric power module 150.
  • the present invention provides a means to generate and store electric power using surface hydrokinetic technique.
  • the present invention provides a means to generate and store electric power that is highly efficient.
  • the present invention provides a means to generate and store electric power that is ecologically friendly.
  • the present invention provides a means to generate and store electric power that is sustainable and economical. [74] The present invention provides a means to generate and store electric power that can be constructed at any location.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)

Abstract

La présente invention concerne un système (100) de production et de stockage d'énergie électrique. Le système comprend un réservoir supérieur (102) pour le stockage de fluide au niveau d'une première tête ; un réservoir inférieur (104) au niveau d'une seconde tête inférieure à la première tête ; un canal de fluide (106) couplant de façon fluidique le réservoir supérieur et le réservoir inférieur, le canal de fluide ayant un gradient, de telle sorte que le fluide s'écoule à travers celui-ci à une vitesse prédéfinie ; une ou plusieurs turbines (108) conçues le long du canal de fluide, et conçues pour interagir avec le fluide en écoulement pour générer de l'énergie électrique ; et une pompe (110) conçue pour faire circuler à nouveau le fluide du réservoir inférieur au réservoir supérieur, une puissance électrique générée par la ou les turbines étant supérieure à une puissance électrique consommée par la pompe.
PCT/IB2023/055814 2022-06-06 2023-06-06 Système de production et de stockage d'énergie électrique WO2023238023A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN202211032334 2022-06-06
IN202211032334 2022-06-06

Publications (1)

Publication Number Publication Date
WO2023238023A1 true WO2023238023A1 (fr) 2023-12-14

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018067957A1 (fr) * 2016-10-07 2018-04-12 Littoral Power Systems Inc. Système hydroélectrique de stockage pompé
US11274648B2 (en) * 2020-01-14 2022-03-15 Ric Enterprises Pumped storage system with waterfall control subsystem

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018067957A1 (fr) * 2016-10-07 2018-04-12 Littoral Power Systems Inc. Système hydroélectrique de stockage pompé
US11274648B2 (en) * 2020-01-14 2022-03-15 Ric Enterprises Pumped storage system with waterfall control subsystem

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