DE202012006622U1 - Potential storage for electrical energy - Google Patents

Potential storage for electrical energy Download PDF

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Publication number
DE202012006622U1
DE202012006622U1 DE202012006622U DE202012006622U DE202012006622U1 DE 202012006622 U1 DE202012006622 U1 DE 202012006622U1 DE 202012006622 U DE202012006622 U DE 202012006622U DE 202012006622 U DE202012006622 U DE 202012006622U DE 202012006622 U1 DE202012006622 U1 DE 202012006622U1
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Germany
Prior art keywords
potential
generator
electrical energy
mass
motor
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Expired - Lifetime
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DE202012006622U
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German (de)
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KUPKE, MARTIN, DE
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Martin Kupke
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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
    • 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
    • H02J15/003—Systems for storing electric energy in the form of hydraulic energy
    • 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
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/46—Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Wind Motors (AREA)

Abstract

Potentialspeicher, dadurch gekennzeichnet, dass eiStahlbeton, mit Wasser befülltes Becken) über eine Getriebe, Motor/Generator, A2 – Induktionsgenerator, A3 – Druckluftgenerator, Pneumatikstempel, A4 – Öldruckgenerator, Öldruckstempel) durch dem Motor/Generator zugeführter elektrischer Energie auf eine erhöhte Potentialebene zwischen tiefstem (E0) und höchstem Punkt (E1) gebracht wird.Potential storage, characterized in that steel-reinforced concrete, water-filled pool) via a gear, motor / generator, A2 - induction generator, A3 - compressed air generator, pneumatic stamp, A4 - oil pressure generator, oil pressure stamp) electrical energy supplied by the motor / generator to an increased potential level between lowest (E0) and highest point (E1).

Description

Durch die nicht steuerbare Einspeisung von erneuerbaren Energien (Wind, Photovoltaik) in das deutsche Verteilnetz (TSO) und einer nicht der Einspeisung entsprechenden Abnahme durch die Letztverbraucher (Kunden) befindet sich das Stromnetz sehr häufig in einem überspeisten oder unterspeisten Zustand. Diese Schwankungen im Gesamtnetz müssen über die Übertragungsnetzbetreiber (TSO) aufwendig und damit kostenintensiv ausgeglichen werden. Zudem kann die Vermarktung von Energie an der Börse (EEX) zu sehr hohen Kosten (Nachfrage höher als Erzeugung) oder sehr niedrigen Preisen (Nachfrage geringer als Erzeugung) von Kurzfristprodukten „Intraday” führen.Due to the non-controllable feed-in of renewable energies (wind, photovoltaic) into the German distribution network (TSO) and a non-feed-in acceptance by the final consumers (customers), the power grid is very often in a transient or undershot state. These fluctuations in the overall network must be costly and costly compensated through the transmission system operators (TSO). In addition, the marketing of energy on the stock exchange (EEX) can lead to very high costs (demand higher than production) or very low prices (demand lower than production) of short-term products "intraday".

Eine Angleichung von Erzeugung und Nachfrage kann über Speicher realisiert werden. Derzeit werden dafür hauptsächlich Pumpspeicherwerke (PSW) angewendet und im geringen Umfang Batterien. Zu den Nachteilen von PSWs gehört, dass diese nur in bestimmten Regionen installiert werden können (Bergland), sowie ein entsprechend großer Platzbedarf für das Stauvolumen (Becken) notwendig ist. Demnach können in Deutschland nur begrenzte Kapazitäten von PSWs bereitgestellt werden. Da die PSWs sich hauptsächlich in Bergregionen befinden, ist Speicherung von an den Küsten Deutschlands erzeugten Erneuerbaren Energien nicht effizient (Leitungsverluste). Batterien können hingegen zwar ortsunabhängig installiert werden, jedoch ist diese Technologie aufgrund der hohen Investitionskosten und dem geringen Wirkungsgrad bzw. der geringen Kapazität nicht wirtschaftlich betreibbar.An alignment of generation and demand can be realized via storage. At present, pumped storage power plants (PSW) and, to a lesser extent, batteries are mainly used. One of the disadvantages of PSWs is that they can only be installed in certain regions (mountainous areas), and that a correspondingly large amount of space is needed for the storage volume (basin). According to this, only limited capacities of PSPs can be provided in Germany. Since the PSWs are mainly located in mountain regions, the storage of renewable energies generated at the coasts of Germany is not efficient (line losses). Batteries, on the other hand, can be installed anywhere, but this technology is not economically operable due to the high investment costs and the low efficiency or low capacity.

Die im Schutzanspruch beschriebene Erfindung umfasst die Lösung, wie die zeitgleiche Differenz Erzeugungsmenge und Abnahmemenge an elektrischer Energie ortsunabhängig ausgeglichen werden kann.The invention described in the protection claim includes the solution, as the same time difference generation amount and purchase amount of electrical energy can be compensated regardless of location.

Die Erfindung umfasst eine Vorrichtung über welche ein Massestück (M) über die Umwandlung von elektrischer Energie potentielle Energie (Höhe H) erfährt. Bei überschüssiger Energieerzeugung wird über einen Antrieb (Motor/Magnetfeld) ein Massestück von E0 (Epot0) auf ein höheres Potential E1 (Epot1) gehoben (1). Bei Nachfrageüberschuss an elektrischer Energie wird die erhöhte potentielle Energie des Massestücks E1 (Epot1) über den Antrieb des Motors wieder in elektrische Energie umgewandelt, wobei das Massestück wieder zum Ausgangspunkt E0 (Epot0) geführt wird.The invention comprises a device via which a mass piece (M) experiences potential energy (height H) via the conversion of electrical energy. With excess energy generation, a mass of E0 (Epot0) is raised to a higher potential E1 (Epot1) via a drive (motor / magnetic field) ( 1 ). When demand surplus of electrical energy, the increased potential energy of the mass E1 (Epot1) is converted back into electrical energy via the drive of the engine, the mass piece is returned to the starting point E0 (Epot0).

Es können beliebige Massestücke über die selbe Vorrichtung hintereinander geschaltet werden (2). Es besteht somit die Möglichkeit direkt neben Windkraftanlagen/Photovoltaikanlagen oder sonstigen Netzausgleichspunkten eine solche Vorrichtung zu installieren, um somit einerseits die Schwankungen des Netzes auszugleichen und andererseits diesen Ausgleich vergleichesweise verlustarm durchzuführen (Leitungsverluste).Any mass can be connected in series via the same device ( 2 ). Thus, it is possible to install such a device directly next to wind turbines / photovoltaic systems or other grid balancing points, in order to compensate for the fluctuations of the grid on the one hand and to carry out this balancing comparatively low loss on the other hand (line losses).

Beschreibungdescription

Berechnungsbeispielcalculation example

  • Windkraftanlage mit einer Leistung von 600 kWWind turbine with a capacity of 600 kW
  • Massestück (M) Gewicht 20 tMass (M) Weight 20 t
  • Höhenunterschied (H) 30 mHeight difference (H) 30 m
  • Reibungsverlust vernachlässigtNeglected friction loss
  • Epot = m × g × hEpot = m × g × h

1) Energiegehalt Massestück am Ausgangspunkt E0:1) Energy content mass piece at the starting point E0:

  • Epot0 = 0 kgm2/s2 = 0 kWhEpot0 = 0 kgm 2 / s 2 = 0 kWh

2) Energiebedarf für Potentialerhöhung des Massestücks E1:2) Energy requirement for potential increase of the mass E1:

  • Epot1 = 20.000 kg × 9,81 m/s2 × 30 m = 5.886.000 kgm2/s2 = 1,635 kWhEpot1 = 20,000 kg x 9,81 m / s 2 x 30 m = 5,886,000 kgm 2 / s 2 = 1,635 kWh

3) Erzeugungszeitraum der Windkraftanlage 600 kW3) Production period of the wind turbine 600 kW

  • t = 600 kW/1,635 kWh = 366,97/h = 9,81 st = 600 kW / 1,635 kWh = 366.97 / h = 9.81 s

Gemäß diesen Beispielzahlen kann überschüssige Windenergie über einen Zeitraum von ca. 10 s in potentielle Energie umgewandelt werden.According to these example numbers, excess wind energy can be converted into potential energy over a period of about 10 seconds.

Diese potentielle Energie kann umgekehrt dann wieder zur Erzeugung elektrischer Energie verwendet werden – nach dem Bsp. 600 kW über 10 s.Conversely, this potential energy can then be used again to generate electrical energy - for example, 600 kW for 10 s.

Die Umwandlung in die jeweils andere Energieform kann über Umwandler „Flaschenzug” oder ähnlichen Getrieben entsprechend verlängert werden, wobei die Leistungsaufnahme bzw. Leistungsabgabe dementsprechend vermindert wird.The conversion to the other form of energy can be extended accordingly via "pulley" or similar transmissions, whereby the power consumption is reduced accordingly.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

SS
– Seiltrommel- cable drum
GG
– Generator/Motor- generator / motor
E1E1
– Epot1- Epot1
E0E0
– Epot0- Epot0
HH
– Höhe- Height
MM
– Massestück- Mass piece
FF
– Führungslager- guide bearings
N1N1
– Netzanschluss (Ein-Ausspeisung)- mains connection (in-feed)
N2N2
– Netz (TSO) bzw. Einspeisung Windkraftanlage, Photovoltaikanlage- Grid (TSO) or supply wind turbine, photovoltaic system
UU
– Umlenkrolle- pulley

Claims (4)

Potentialspeicher, dadurch gekennzeichnet, dass ein Massestück M (Beton, Schwerbeton, Stahl, Eisen, Stahlbeton, mit Wasser befülltes Becken) über einen verbundenen Antrieb A (A1 – Seil, Trommel, Getriebe, Motor/Generator, A2 – Induktionsgenerator, A3 – Druckluftgenerator, Pneumatikstempel, A4 – Öldruckgenerator, Öldruckstempel) durch dem Motor/Generator zugeführter elektrischer Energie auf eine erhöhte Potentialebene zwischen tiefstem (E0) und höchstem Punkt (E1) gebracht wird.Potential storage, characterized in that a mass M (concrete, heavy concrete, steel, iron, reinforced concrete, tank filled with water) via a connected drive A (A1 - rope, drum, gearbox, motor / generator, A2 - induction generator, A3 - compressed air generator , Pneumatic punch, A4 - oil pressure generator, oil pressure stamp) by the motor / generator supplied electrical energy to an increased potential level between the lowest (E0) and highest point (E1) is brought. Potentialspeicher nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass ein Massestück M über einen verbundenen Antrieb A auf ein niedrigere Potentialebene gebracht wird, wobei der Antrieb elektrische Energie erzeugt, die dem vorgelagerten Netz eingespeist wird.Potential storage device according to one of the preceding claims, characterized in that a mass M is brought via a connected drive A to a lower potential level, wherein the drive generates electrical energy, which is fed to the upstream network. Potentialspeicher nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Potentialerhöhung bzw. Potentialabsenkung des Massestücks vertikal zum Erdboden erfolgt.Potential storage device according to one of the preceding claims, characterized in that the potential increase or potential reduction of the mass piece takes place vertically to the ground. Potentialspeicher nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Potentialerhöhung bzw. Potentialabsenkung des Massestücks über: – kraftübetragenden Flaschenzug, – Kopplung weiterer Massestücke, – stufenlose Positionseinstellung zwischen tiefstem und höchsten Punkt erfolgtPotential storage device according to one of the preceding claims, characterized in that the potential increase or potential reduction of the mass piece via: - force-transmitting pulley, - Coupling of other masses, - Stepless position adjustment between lowest and highest point takes place
DE202012006622U 2012-06-01 2012-06-01 Potential storage for electrical energy Expired - Lifetime DE202012006622U1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2578805A (en) * 2019-06-28 2020-05-27 Gravitricity Ltd Gravity-Based energy storage system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2578805A (en) * 2019-06-28 2020-05-27 Gravitricity Ltd Gravity-Based energy storage system
GB2578805B (en) * 2019-06-28 2020-12-23 Gravitricity Ltd Gravity-Based energy storage system
US11965490B2 (en) 2019-06-28 2024-04-23 Gravitricity Ltd Gravity-based energy storage system

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R086 Non-binding declaration of licensing interest
R207 Utility model specification

Effective date: 20121108

R081 Change of applicant/patentee

Owner name: KUPKE, MARTIN, DE

Free format text: FORMER OWNER: KUPKE, MARTIN, 13053 BERLIN, DE

Effective date: 20150123

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