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WO1992005617A1 - Groupe electrique accumulateur d'energie - Google Patents

Groupe electrique accumulateur d'energie Download PDF

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Publication number
WO1992005617A1
WO1992005617A1 PCT/DE1991/000754 DE9100754W WO9205617A1 WO 1992005617 A1 WO1992005617 A1 WO 1992005617A1 DE 9100754 W DE9100754 W DE 9100754W WO 9205617 A1 WO9205617 A1 WO 9205617A1
Authority
WO
WIPO (PCT)
Prior art keywords
energy
flywheel
heat engine
generator
control circuit
Prior art date
Application number
PCT/DE1991/000754
Other languages
German (de)
English (en)
Inventor
Marie-Hélène GUIMET
Original Assignee
Guimet Marie Helene
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
Priority claimed from DE4030134A external-priority patent/DE4030134A1/de
Priority claimed from DE4102006A external-priority patent/DE4102006A1/de
Priority claimed from DE4104088A external-priority patent/DE4104088A1/de
Application filed by Guimet Marie Helene filed Critical Guimet Marie Helene
Publication of WO1992005617A1 publication Critical patent/WO1992005617A1/fr

Links

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
    • H02K7/02—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
    • 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
    • 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

  • Own power generation with small combined heat and power plants and / or solar cells is mainly operated on the power distribution network.
  • the network acts as an intermediate energy store.
  • This mode of operation is not optimal in terms of costs, because the transport and distribution costs of electrical energy make up a significant part of the electricity costs.
  • the invention avoids these disadvantages.
  • flywheel energy buffer for example with a magnetic bearing, carries magnets rotating with the flywheel, preferably permanent magnets, which form the rotor magnets of a synchronous machine which, in cooperation with the associated stator coils, accelerates the flywheel mass.
  • the energy delivered by the heat engine is charged via a magnetic field coupling into the flywheel energy buffer until it is filled, i.e. has reached its maximum speed.
  • the heat engine When the flywheel energy store is filled, the heat engine is stopped and the consumer is supplied with energy from the flywheel energy store. Shortly before the flywheel energy buffer is emptied. the heat engine is restarted with energy from the flywheel energy buffer and a new energy storage interval begins.
  • the flywheel energy buffer runs very high speed and with changing speed, so that a 50 Hz consumer voltage must be generated with a frequency converter in the multi-way electrical energy converter coupling.
  • Usual switching converters e.g. used in uninterruptible power supplies, chop the input voltage and conduct it e.g. pulse-width modulated via a high-frequency transformer, which usually has several percent of the nominal output of iron losses. This is disadvantageous in the case of households as consumers because a typical German four-person household that only consumes about 500 W average power has a peak requirement of at least ten times, i.e. 5 kW, for which the transformer should be designed. The transformer losses would be several percent of this peak power, so they would make up a considerable part of the average household power.
  • the frequency converter is designed without a power transformer, either in such a way that the pulsed voltage is passed through a choke coil as an energy buffer, or in such a way that several, for example three DC voltages a staircase voltage is interconnected, which approximates a sinusoidal voltage.
  • three DC voltages in a ratio of 1: 2: 4 for example, seven stages with the same voltage spacing can be formed.
  • the three voltages in a ratio of 1: 2: 4 can be obtained in a simple manner by tapping the individual stator pole windings.
  • the control circuit of the clutch can also be used to generate energy from other sources, e.g. Store from solar cells in the flywheel energy buffer.
  • the cost-optimal flywheel design for this stationary energy storage application is likely to be a flywheel wound from thin amorphous metal strip.
  • the stator can be moved in the axial direction out of the area of the permanent magnets rotating with the rotor.
  • the flywheel energy buffer can be magnetically supported without contact, e.g. with a vertical axis of rotation with a permanent magnet axial bearing that supports the weight and two active radial bearings.
  • the radial bearing position sensor signals can also be used to control a balancing device which e.g. consists of three balancing masses rotating with the flywheel energy buffer, which are displaced radially.
  • the energy for shifting the balancing masses can be obtained from a co-rotating coil that rotates past a permanent magnet positioned near the flight circle of the coil.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

Un accumulateur intermédiaire d'énergie à volant emmagasine, par intervalle, de l'énergie électrique produite par un moteur thermique, en vue d'alimenter en continu un consommateur en énergie électrique. Un convertisseur de fréquence dépourvu de transformateur empêche les pertes dans le fer.
PCT/DE1991/000754 1990-09-24 1991-09-24 Groupe electrique accumulateur d'energie WO1992005617A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DEP4030134.6 1990-09-24
DE4030134A DE4030134A1 (de) 1990-09-24 1990-09-24 Energiespeicherndes stromaggregat
DE4102006A DE4102006A1 (de) 1990-09-24 1991-01-24 Magnetisch beruehrungslos gelagerter schwungradgenerator mit senkrechter drehachse
DEP4102006.5 1991-01-24
DEP4104088.0 1991-02-11
DE4104088A DE4104088A1 (de) 1990-09-24 1991-02-11 Selbst zerlegendes metallschwungrad

Publications (1)

Publication Number Publication Date
WO1992005617A1 true WO1992005617A1 (fr) 1992-04-02

Family

ID=27201709

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1991/000754 WO1992005617A1 (fr) 1990-09-24 1991-09-24 Groupe electrique accumulateur d'energie

Country Status (2)

Country Link
AU (1) AU8633991A (fr)
WO (1) WO1992005617A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995002272A1 (fr) * 1993-07-06 1995-01-19 British Nuclear Fuels Plc Stator
WO1995027326A1 (fr) * 1994-03-31 1995-10-12 United Technologies Corporation Moteur/generateur a ecartement reglable pour systeme de volant-moteur
WO1996024981A1 (fr) * 1995-02-06 1996-08-15 U.S. Flywheel Systems Systeme de stockage d'energie a volant
US5627419A (en) * 1994-03-31 1997-05-06 United Technologies Corporation Self-adjusting airgap motor/generator for flywheel system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR920849A (fr) * 1945-10-17 1947-04-18 Dispositif pour la production d'énergie électrique sous une faible puissance

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR920849A (fr) * 1945-10-17 1947-04-18 Dispositif pour la production d'énergie électrique sous une faible puissance

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
MESURES REGULATION AUTOMATISME. Bd. 45, Nr. 2, Februar 1980, PARIS FR Seiten 77 - 78; 'Techniques d'applications : Le stockage d'énergie par accumulateurs cinétiques grâce aux paliers magnétiques' siehe Seite 77, Spalte 3, letzter Absatz - Seite 79, Spalte 1, Zeile 55 *
PROCEEDINGS OF THE 24TH INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE, AUGUST 6-11 , 1989. WASHINGTON, D.C. US Seiten 1485 - 1490; D. PLANT ET AL.: 'Prototype of a magnetically suspended flywheel energy storage system' siehe Zusammenfassung siehe Seite 1489, linke Spalte, Zeile 23 - Zeile 26 *
PT ELECTROTECHNIEK, ELEKTRONICA. Bd. 32, Nr. 6, Juni 1977, RIJSWIJK NL Seiten 302 - 309; A. LENGER: 'Elektrische energieopslag met behulp van een vliegwiel' siehe Seite 302, Zeile 1 - Zeile 13 siehe Seite 303, rechte Spalte, Zeile 26 - Zeile 32; Abbildung 2 *
THE CONFERENCE RECORD OF THE FIFTEENTH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE-1981 ; MAY 12-15 , KISSIMMEE FLORIDA US Seiten 636 - 641; P. JARVINEN ET AL.: 'Performance characteristics of solar photovoltaic flywheel storage systems' siehe Seite 636, linke Spalte, Absatz 2 - rechte Spalte, Absatz 2 siehe Abbildung 1 SA 51432 030siehe Seite 638, rechte Spalte, Absatz 1 - Seite 639, rechte Spalte, Absatz 1 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995002272A1 (fr) * 1993-07-06 1995-01-19 British Nuclear Fuels Plc Stator
WO1995027326A1 (fr) * 1994-03-31 1995-10-12 United Technologies Corporation Moteur/generateur a ecartement reglable pour systeme de volant-moteur
US5627419A (en) * 1994-03-31 1997-05-06 United Technologies Corporation Self-adjusting airgap motor/generator for flywheel system
WO1996024981A1 (fr) * 1995-02-06 1996-08-15 U.S. Flywheel Systems Systeme de stockage d'energie a volant
US5614777A (en) * 1995-02-06 1997-03-25 U.S. Flywheel Systems Flywheel based energy storage system

Also Published As

Publication number Publication date
AU8633991A (en) 1992-04-15

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