WO2020036484A1 - Système de stockage d'énergie cinétique - Google Patents

Système de stockage d'énergie cinétique Download PDF

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Publication number
WO2020036484A1
WO2020036484A1 PCT/NL2019/050512 NL2019050512W WO2020036484A1 WO 2020036484 A1 WO2020036484 A1 WO 2020036484A1 NL 2019050512 W NL2019050512 W NL 2019050512W WO 2020036484 A1 WO2020036484 A1 WO 2020036484A1
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WO
WIPO (PCT)
Prior art keywords
ring
main facility
facility housing
construction
soil
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/NL2019/050512
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English (en)
Inventor
Barend Johannis BOERMAN
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Individual
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Individual
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Publication of WO2020036484A1 publication Critical patent/WO2020036484A1/fr
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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
    • H02K7/1869—Linear generators; sectional generators
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/02—Additional mass for increasing inertia, e.g. flywheels
    • H02K7/025—Additional mass for increasing inertia, e.g. flywheels for power storage
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
    • H02K41/02—Linear motors; Sectional motors
    • 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
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids

Definitions

  • the invention is in the field of a kinetic energy storage system.
  • the system can be used to store huge amounts of energy, e.g. GWh' s of energy.
  • GWh' s of energy e.g. GWh' s of energy.
  • Such a system can be used to balance fluc tuations in supply of energy at the one hand, such as due to more or less sun or wind energy being available, and fluctuations in consumption of energy at the other hand, such as be ⁇ tween day and night.
  • FES energy stor age'
  • WO 2015/047092 A1 recites a kinetic energy storage system comprising a mass body and energy conversion means arranged to convert electrical energy into kinetic energy of the mass body.
  • the mass body comprises a one or more carriages
  • the energy storage system further comprises a track in the form of a con tinuous loop supporting the one or more carriages in an opera tional velocity range. This energy storage system has not been put into practice yet.
  • the present invention therefore relates to an improved energy storage system, which overcome one or more of the above disad vantages, without jeopardizing functionality and advantages.
  • the present invention relates in a first aspect to a kinetic energy storage system (KES) .
  • KES kinetic energy storage system
  • PHES industrial size storage technologies
  • CAES underground caverns
  • the present invention is also subject of a priority applica tion NL2021471.
  • the application and the contents thereof are hereby incorporated by reference.
  • the present system performs better in terms of velocity of the kinetic mass, in relation to the choice of material and in structure, overall structural weight and material use per equal amount of energy capacity, price per amount energy storage ca pacity, and amount of self-discharge compared to e.g. a flywheel system.
  • a challenge in any energy storage is to store as much energy as possible with the use of the least amount of mass and volume made at the lowest costs.
  • the amount of mass relative to the amount of energy storage (capacity) will be pursued most likely.
  • Increasing e.g. flywheels energy density can be achieved only by using a mass material with a higher ten sile strength. For example: using a mass with a higher mass-den sity will invoke more to its own tensile strength, causing the maximum rotating velocity to reduce, thereby reducing the stora ble energy, while still increasing its weight.
  • a lightweight ma terial also allows a higher rotation speed.
  • setup B may have a cross section twice the size of setup A.
  • the kinetic energy density may become doubled in setup B where the orbits radius has doubled compared to setup A.
  • the amount of energy density as a single factor relates di rectly to a radius of a system.
  • the energy storage capacity of setup B is four times the capacity of setup A.
  • each span 723 is numbered separately for each setup.
  • Each of the ten spans shown are representing an equal span strength and equal span length.
  • both setups re quires to have an equal length interval between spans (as shown by the grey arrows, one for each setup) .
  • setup B has twice the circumferential length as setup A, the number of span attachment points doubles from four points to eight points. But because the diameter of setup B is twice that of setup A, each span in setup B can only reach from the guidance system to the centre point in the middle, where in setup A it reaches across the full diameter by only a single span each.
  • An amount of storable energy does not relate to the amount of weight of the kinetic mass, but directly to the amount of applicable centripetal force.
  • the consequence of making a kinetic mass lighter without reducing the kinetic energy is directly linked to a necessary increased mass velocity while maintaining the same amount of centripetal force to be transferred. Because weight can only by means of velocity contribute to the amount of storable amount of energy, than all of the remaining kinetic mass material can exclusively be aimed on being useful for:
  • Kinetic energy in such system could be stored in some type of magnetizable mass, largely consisting of most likely: iron, where the guidance system could be made using 'electrically manipulatable magnet structures', that may consist partially of permanent magnets, but probably for the most part, or even completely out of one or more electromagnets in different ways, at least in a stacked like fashion as shown by 441, 442 and 443 in figure 6. Because the amount of mass by itself is not directly proportional to the amount of energy storage, and the weight of the rings iron used as the remaining kinetic mass, already stripped from any other possible added weight, could be reduced even further, therefore the descrip tion: 'ring' or 'rotor system' seems more applicable than: 'ki netic mass' .
  • each example represents an equal scale, showing differ ent effects of magnetic paths shown by black lines and their magnetic directions by arrows.
  • Shown in example A is how a sys tem implies to be the most electrical efficient by having the largest height per single magnetic path which also surrounds the thickest least electrical resistive coil wiring.
  • Still both A and B use the same initial amount of material and weight at their rings.
  • An certain electromagnet will always be able to apply a certain amount of magnetic force of about one hundred kilo Newton per square meter at a theoretically ideal two gap at the point of reaching saturation, as long as there are no obstructions along the magnetic path to over saturate, having the magnetic path to be compromised by narrowing its magnetic cross section at any point along it.
  • the same amount of magnetic flux will also has to be transferred all the way at both ring and guidance system when their magnetic cross sections are equal along its mutual magnetic path. Each part of cross section along its path will only be able to reach a certain amount of flux before it will saturate.
  • the rings iron core would always have a higher magnetic flux than its guidance system at equal electromagnetic power conditions until a point of saturation at some point in the magnetic path is reached, causing the transferable magnetic force between them to be limited by the magnetic path to be partial overloaded, and therefore obstruct ing the whole magnetic path as a chain around an electric conductive wiring.
  • This is shown at D by the magnetic fields to even partial leave the rings iron core at the location where it is no longer capable to contain it. Not only saturation will cause a possible reduction in transferable force between guid ance system and its ring, also the gap between the two will.
  • a safe margin is highly recommended to avoid of having a magnetic path to become fully satu rated at an already initially intended gap clearance, especially in case of imperfections in: ring orbit, magnetic feedback, or by means of external lateral forces to occur, such as at an earthquake.
  • Some more structural error to avoid is what is shown in F, having two neighboring electrical wiring to have an equal current direction along through the guidance system.
  • the present invention provides a solution to one or more of the above-mentioned problems.
  • the present invention relates in a first aspect to a kinetic energy storage system according to claim 1.
  • the solid ring-shaped mass may comprise at least two connectable ring sections.
  • the system can be constructed by sub-ele ments, which makes construction and handling much easier and lowers costs.
  • many ring sections are provided.
  • the present system may comprise at least two ring system modules, where each module comprises an internal system.
  • each module comprises an internal system.
  • the system can be constructed by sub-elements, which makes construction much easier and lowers costs.
  • many ring system modules are provided.
  • the present system may comprise a squirrel cage rotor construction adapted to accelerate and to decelerate the solid ring-shaped mass by means of interaction between a stator system, and the rotor comprising short circuit windings, preferably as an integral part of the solid ring-shaped mass wherein a combined same piece of iron core is part of both the solid-ring mass as well as of the rotor.
  • the present system may comprise a squirrel cage rotor construction adapted to accelerate and to decelerate the solid ring-shaped mass by means of interaction between a stator system, and the squirrel cage rotor construction comprising internal short circuit windings em ⁇ bedded in ferrite, mounted directly to the solid ring-shaped mass' surface.
  • the present system may comprise alternating magnetic polarity arranged permanent magnets mounted to the rings surface, adapted to accelerate and to decelerate the solid ring-shaped mass by means of interaction between the stator system and a permanent magnet rotor con struction .
  • At least one ring system comprises a stator system, comprising along the perimeter sets of lengthwise arranged electromagnets, preferably adapted for creating artificially controllable se quential progressing electromagnetic fields to interact with any of the mentioned rotor systems to enable bi-directional exchange in mechanical force.
  • At least one ring system comprises a suspension system, preferably arranged in sections, preferably divided according the division of ring systems modules, adapted to provide suspension along an entire circumferential length inside an entire ring system, where each suspension system section comprises electri cally manipulatable magnet constructions, comprising electro magnets, which can be in an optional combination with perma nent magnets.
  • Each section may comprise an individual active feedback controlled magnetic force for maintaining a specific gap clearance between the ring and the suspension system (at any given point) . Note that 'section' here doesn't mean 'mod ule' or being detachable!
  • a module can comprise multiple sec tions, or a section can be merged by multiple modules, or even equally divided 1:1.
  • At least one ring system may comprise a guidance system, such as at each ring system module, adapted to compensate a ring's centripetal force by means of a divided setup along the entire circumferent ial length inside each entire ring system, pref erably a sectional divided setup, where each guidance system section comprises electrically manipulatable magnet constructions, comprising electromagnets, in an optional combination with permanent magnets.
  • Each section may comprise an individ ual active feedback controlled magnetic force for maintaining a specific gap clearance between the ring and the guidance system (at any given point) .
  • the electrically manipulatable mag net constructions comprising electromagnets, typically comprising 1-100% electromagnets (based on a total magnetic field strength), preferably 10-99.9% electromagnets, more preferably 30-99.8% electromagnets, even more preferably 50- 99% electromagnets.
  • the guid ance system may comprise individual controllable electrically manipulatable magnet constructions by being arranged over the vertical height within at least one section of the guidance system adapted to control ring torsion, such as by (individ ual) active feedback control.
  • a main facility housing construction may comprise internal mounting and support structures for the ring system for the subsequent assembly and disassembly of ring systems or modules.
  • a main facility housing construction may be anchored into the soil comprising external additional mounting constructions at some length interval along the perimeter of the main facility housing for capturing the centripetal forces throughout the main facility housing construction outward.
  • the main facility housing construction may be at a certain depth in the soil, such as >100m deep, preferably >500 m. At such depth the gravity force of the soil compensate the cen tripetal forces intrinsically.
  • a main facility housing construction may be anchored into the soil comprising external additional span constructions, by means of chains or cables at some length interval along the perime ter of the main facility housing for capturing the centripetal forces throughout the main facility housing construction outward towards some kind of firm anchor point (see e.g. fig ure 10) .
  • a main facility housing construction may be anchored into the soil comprising external additional pile constructions by means of piles, such as by means of being pile-driven, at some length interval along the perimeter of the main facility housing for capturing the centripetal forces throughout the main facility housing construction outward (see e.g. figure 11) .
  • a main facility housing construction may be placed elevated above the soil, comprising pillar constructions where the pillars are anchored into the soil at some length interval along the perimeter of the main facility housing to capture and trans mit the centripetal forces throughout the main facility hous ing construction outward (see e.g. figure 12) .
  • a main facility housing construction may be placed elevated above the soil, comprising pylon constructions where the pylons are anchored into the soil at some length interval along the perimeter of the main facility housing to capture and transmit the centripetal forces throughout the main facility housing construction outward (see e.g. figure 13).
  • the present system stores at least one hundred Mega Watt hour (MWh) , preferably more than 1 GWh, more preferably more than 10 GWh, even more preferably more than 100 GWh, and/or peak power provision of more than ten Mega Watt peak (MWp) , preferably more than 100 MWp, more preferably more than 1 GWp, even more preferably more than 10 GWp .
  • MWh Mega Watt hour
  • MWp Mega Watt peak
  • a solid ring-shaped mass comprises a mechanism, where each ring sec tion comprising at least one screw mechanism coupled to a transfer axle to transfer a ring section gap spacing setting mechanically from one end of each section to the other end, to obtain a balanced gap spacing between every two up follow ing ring sections (see e.g. figure S).
  • FIGS. 1-14 show exemplary details of the present system.
  • Guidance system surface area frontal view 421 Guidance system magnetic (iron) surface area, frontal view 43 Guidance system, back view
  • Figure 7 shows three different ring parts using different ro tor layouts.
  • the ring can be considered to be rotor itself, because a specific part of the core is used for being both rotor as well as it is used as being a part of the magnetic guidable kinetic mass.
  • a ferrite based rotor containing short circuit wir ing At the middle: a ferrite based rotor containing short circuit wir ing.
  • the upper part of the figure shows the each ring setup shown sideways towards rotor surface. In the lower part each rotor on or in each ring is shown by cross sec tion (each ring here is not shown in full height ⁇ .
  • Figure 10 shows in three different perspectives the main fa cility housing attached to a type of span construction (in this case displayed by chains) for anchoring into the soil at a certain points somewhere more towards the virtual centre point of the facility structure.
  • This can be used in case the facility housing may not be placed sturdy enough by placing in soft soil, or to shallow underneath the surface, of too highly elevated above the ground to capture the lateral force through the elevation providing structure alone, what could be the case by using a pylon structure (75x), like it is shown in figure 13.
  • This technique can also be applied at the inner perimeter such as in combination with the span construction (72x), as shown in figure 10.
  • Electromagnets can be used to guide and suspend the rotating ring.
  • a third active electromag netic based system can be used to accelerate and decelerate the ring, to add and remove its kinetic energy, charging and discharging the energy storage system by changing the rings veloc ity.
  • This can be achieved using artificially made 'actively con trollable sequential electromagnetic fields' produced by the 'stator' 2 of the system, made by electromagnets placed side by side 22, facing a 'rotor structure' 115 and 125 which will be attached to the ring 1, facing each other along the entire pe rimeter length for each ring system.
  • the produced sequential electromagnetic field will be picked up by the rotor structure of the ring, applying torque.
  • this type of rotor structure does not create any magnetic field, so it will not induce any alternating magnetic field in the stators elec tromagnets.
  • the stator is required to induce its own sequential electromagnetic field for transfer of torque into, as well as out from the ring by small changes in sequence frequency in relation to the rings velocity. This difference also translates directly to the amount of slip.
  • the impedance of the stator electro magnets behaves almost resistive.
  • the stator is empowered, but its sequence follows the rings velocity without slip, the impedance of the stators electromagnets behaves inductive.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)

Abstract

L'invention concerne le domaine d'un système de stockage d'énergie cinétique. Le système peut être utilisé pour stocker de grandes quantités d'énergie, par exemple des GWh d'énergie. Un tel système peut être utilisé pour équilibrer des fluctuations d'alimentation en énergie d'une part, par exemple en raison de l'énergie solaire ou éolienne plus ou moins disponible, et des fluctuations de la consommation d'énergie d'autre part, par exemple entre le jour et la nuit.
PCT/NL2019/050512 2018-08-15 2019-08-05 Système de stockage d'énergie cinétique Ceased WO2020036484A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL2021471 2018-08-15
NL2021471A NL2021471B1 (en) 2018-08-15 2018-08-15 Kinetic energy storage system

Publications (1)

Publication Number Publication Date
WO2020036484A1 true WO2020036484A1 (fr) 2020-02-20

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PCT/NL2019/050512 Ceased WO2020036484A1 (fr) 2018-08-15 2019-08-05 Système de stockage d'énergie cinétique

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WO (1) WO2020036484A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022251240A3 (fr) * 2021-05-24 2023-01-05 Daniel Klotzer Systèmes et procédés de stockage d'énergie en anneau volant

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4148260A (en) * 1974-01-31 1979-04-10 Minovitch Michael Andrew High speed transit system
US20030192449A1 (en) * 2002-04-11 2003-10-16 Magtube, Inc. Shear force levitator and levitated ring energy storage device
EP2574785A2 (fr) * 2011-09-28 2013-04-03 The Boeing Company Pompe de sublimation et procédé
WO2015047092A1 (fr) 2013-09-26 2015-04-02 Stichting Energieonderzoek Centrum Nederland Système de stockage d'énergie cinétique
US20180058244A1 (en) * 2016-08-31 2018-03-01 Robert Lovejoy Goodwin Ring Turbine Arrangements for Electricity Generation and Other Applications
US20180166946A1 (en) * 2013-02-20 2018-06-14 Raymond James Walsh Flywheel energy storage device with induction torque transfer

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4148260A (en) * 1974-01-31 1979-04-10 Minovitch Michael Andrew High speed transit system
US20030192449A1 (en) * 2002-04-11 2003-10-16 Magtube, Inc. Shear force levitator and levitated ring energy storage device
EP2574785A2 (fr) * 2011-09-28 2013-04-03 The Boeing Company Pompe de sublimation et procédé
US20180166946A1 (en) * 2013-02-20 2018-06-14 Raymond James Walsh Flywheel energy storage device with induction torque transfer
WO2015047092A1 (fr) 2013-09-26 2015-04-02 Stichting Energieonderzoek Centrum Nederland Système de stockage d'énergie cinétique
US20180058244A1 (en) * 2016-08-31 2018-03-01 Robert Lovejoy Goodwin Ring Turbine Arrangements for Electricity Generation and Other Applications

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022251240A3 (fr) * 2021-05-24 2023-01-05 Daniel Klotzer Systèmes et procédés de stockage d'énergie en anneau volant

Also Published As

Publication number Publication date
NL2021471B1 (en) 2020-02-24

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