EP1966869A2 - Dispositif pour stocker de l'energie et utilisation d'un tel dispositif pour stocker de l'energie - Google Patents

Dispositif pour stocker de l'energie et utilisation d'un tel dispositif pour stocker de l'energie

Info

Publication number
EP1966869A2
EP1966869A2 EP06828718A EP06828718A EP1966869A2 EP 1966869 A2 EP1966869 A2 EP 1966869A2 EP 06828718 A EP06828718 A EP 06828718A EP 06828718 A EP06828718 A EP 06828718A EP 1966869 A2 EP1966869 A2 EP 1966869A2
Authority
EP
European Patent Office
Prior art keywords
energy
energy storage
storing
storing energy
printed circuit
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.)
Withdrawn
Application number
EP06828718A
Other languages
German (de)
English (en)
Inventor
Robert Goldner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
P21 - Power for 21st Century GmbH
P21 Power for the 21st Century GmbH
Original Assignee
P21 - Power for 21st Century GmbH
P21 Power for the 21st Century GmbH
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 P21 - Power for 21st Century GmbH, P21 Power for the 21st Century GmbH filed Critical P21 - Power for 21st Century GmbH
Publication of EP1966869A2 publication Critical patent/EP1966869A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J15/00—Systems for storing electric energy specially adapted for power networks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/40—Electric propulsion with power supplied within the vehicle using propulsion power supplied by capacitors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/34—Parallel operation in networks using both storage and other DC sources, e.g. providing buffering
    • H02J7/345—Parallel operation in networks using both storage and other DC sources, e.g. providing buffering using capacitors as storage or buffering devices
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Definitions

  • the present invention relates to a device for storing energy and the use of such a device for storing energy.
  • Such a device for storing energy is arranged between a power generator, which supplies the device for storing energy with energy, and an energy consumer, which is supplied with energy in the event of energy bottlenecks by the device for storing energy.
  • the device for storing energy serves as an energy buffer for consumers. In particular, if a consumer needs a lot of energy in the short term, which the actual power source of the consumer can not provide, the device for storing energy can supply corresponding energy reserves.
  • hybrid motor vehicles which are driven by an electric and an internal combustion engine simultaneously.
  • the internal combustion engine drives a generator that both powers the electric motor and a powerful battery, the so-called energy storage device. invites.
  • a clever engine management system enables a very low overall consumption in such a hybrid system.
  • the trick of such a vehicle is that the energy buffered in the battery briefly provides a much higher power than the built-in internal combustion engine can deliver. Thus, the performance of the vehicle can be extremely increased.
  • capacitors in particular high-performance capacitors, can be used as devices for storing energy. Capacitors allow a virtually unlimited lifetime of these batteries.
  • Buffer storage because no electrochemical reactions take place in capacitors, but only charges are separated.
  • a simple capacitor consists of two opposing metal plates. There is an excess of electrons on one metal plate and a lack of electrons on the other metal plate. If both metal plates electrically connected, a current flows and the energy stored in the capacitor can be used.
  • ultra-capacitors Modern double-layer capacitors, also called ultra-capacitors, whose surface according to the rules of fractal geometry by a factor of several ten thousand larger than normal capacitors, allow significantly smaller geometries at high power.
  • ultra-capacitors have tiny carbon particles with a very finely textured, three-dimensional surface. For each gram of material, surfaces of about 2000 square meters or more and thus an extremely high storage capacity are possible.
  • the object of the invention is to provide a device for storing energy, the storage capacity is quickly and inexpensively adjustable to the needs of different consumers, the spatial dimensions and weight of the device for storing energy are minimized, while high storage capacity of Device for storing energy.
  • a device for storing energy comprising at least one line element with at least one connection device for connection to an energy consumer, having at least two energy storage units, each of the at least two energy storage units being electrically connected to the at least one line element, wherein an energy storage unit has at least one printed circuit board, On the one or both printed circuit board side (s) sitting a plurality of energy stores, which are connected to each other via electrical lines, and wherein at least one energy storage unit has a power electronics with a connecting element for connection to a power generator, represents a device for storing energy whose storage capacity is quickly and inexpensively adjustable to the needs of different consumers, the spatial Dimensions and the weight of the device for storing energy are minimized, while high storage capacity of the device.
  • each of the at least two energy storage units is electrically connected to the at least one line element of the device for storing energy
  • a device for storing energy is created, which is modular. That is, depending on the necessity of the power supply of the power consumer connected to the terminal device of the power storage device, the storage capacity of the power storage device can be changed quickly and easily.
  • the energy storage units represent individual storage modules. Depending on the needs of the consumer's power supply, the energy storage units may be modularly added or removed to the energy storage device. This allows the size and weight of the energy storage device to be kept to a minimum for any need. It can be just as many
  • Energy storage units are attached to the device for storing energy, as needed in individual cases.
  • the energy storage units can sometimes be equipped with more or less energy storage devices.
  • the individual energy stores are via electrical lines connected with each other. These electrical leads converge at a location on each energy storage unit, which are then electrically connected to the at least one conducting element of the energy storage device.
  • the line element has at least one connection device for connection to an energy consumer in order to deliver the energy stored in the energy storage units to the energy consumer.
  • At least one energy storage unit of the device for storing energy has power electronics with a connection element for connection to a power generator.
  • the energy storage units can be charged via the connecting element and the power electronics.
  • the power electronics ensure that the energy storage units are charged but can not be discharged by the power generator. It can be provided that each energy storage unit has its own power electronics with a connecting element for connection to a power generator. But it is also possible that all energy storage units of the device for storing energy have a common power electronics with a connecting element for connection to a power generator.
  • the power electronics advantageously has an overvoltage protection in order to protect the energy stores of the energy storage units from excessive voltages.
  • Double-layer capacitors are very efficient energy storage devices that can store and release electrical energy quickly. They are therefore particularly suitable for the short-term bridging of power failures and the coverage of load peaks.
  • the Double-layer capacitors may be electrostatic or electrochemical double-layer capacitors. These are also referred to as ultracapacitors, supercapacitors, ultracaps or supercaps.
  • the stored energy of an electrostatic double-layer capacitor depends on the voltage, the electrode spacing and the available surface. Particularly suitable are double-layer capacitors with carbon contact surfaces.
  • the surface can be extremely increased by the use of activated carbon fleeces compared to a normal capacitor.
  • tiny carbon particles with a very finely structured, three-dimensional surface create very large surfaces, so that per gram of carbon particle material surfaces of over 2000 square meters and thus an extremely high capacity are possible.
  • Such double-layer capacitors are very light, with high energy storage capacity.
  • supercaps weighing in at around 300g can store more than one watt-hour of energy.
  • the device for storing energy in its outer dimensions can be kept very small and light in weight.
  • such double-layer capacitors enable a high storage capacity.
  • Energy storage devices are small storage modules that are simply and quickly attached to the conduit member of the energy storage device can be removed to vary the storage capacity of the device for storing energy.
  • a device for storing energy in which an energy storage unit has two printed circuit boards running parallel to one another, a plurality of energy stores each being located on the side of a printed circuit board remote from the respective other printed circuit board, is particularly suitable since both the fastening of the energy stores to the printed circuit boards, as well as the printed circuit boards themselves can be easily formed.
  • the electrical lines that connect the energy storage devices can be arranged between the two mutually parallel printed circuit boards.
  • the two parallel circuit boards are releasably secured together.
  • the printed circuit boards can be fixed to one another non-positively. For example, they can be bolted together.
  • the board can have simple copper lines and copper holes as electrical leads.
  • the line element has fastening elements for the positive and / or non-positive connection of at least two energy storage units.
  • the energy storage units the so-called modular memory modules, can be easily and quickly attached to the at least one line element of the device for storing energy.
  • the device for storing energy can be equipped with energy storage units.
  • Fasteners electrically conductive connectors are. Such connectors ensure in addition to a secure hold of the energy storage units on the line element for a quick attachment of the energy storage units to the line element.
  • the device for storing energy can be easily equipped with a corresponding number of energy storage units.
  • a device for storing energy in which the power electronics is arranged between the two mutually parallel printed circuit boards, is particularly suitable, as a result, the power electronics is particularly well protected against external influences.
  • an energy storage unit is arranged in the power electronics between the two parallel circuit boards, very easy and inexpensive to manufacture.
  • the printed circuit boards can be made relatively simple, since the power electronics sits between them.
  • the circuit boards have simple copper leads and bores to electronically interconnect the energy storage and power electronics.
  • An energy storage unit is arranged in the power electronics between the two parallel circuit boards, it is also low to its outer dimensions, whereby a space optimization of the device for storing energy is possible.
  • a thyristor In addition to an anode and a cathode connection, a thyristor has a gate connection. In the ground state, the thyristor is blocking in both directions. In the forward direction it locks up to a breakdown voltage. In the forward direction it can be switched by a current pulse at the gate terminal in a conductive state. In the reverse direction, it blocks the current like a normal diode.
  • the diode is an electronic device with two poles, which has an unbalanced and non-linear characteristic. A diode is for electricity flowing in one direction, permeable and for Current flowing through the conductor in opposite direction, below the breakdown voltage, an insulator.
  • the thyristor is used as a controllable diode.
  • the thyristor By a current injection into the third layer, wherein the control is carried out at the gate terminal, the thyristor can ignited, that is switched to be conductive.
  • the prerequisite for this is a positive voltage between the anode and cathode, as well as a minimum current through the middle barrier layer.
  • Deleted, ie offset in the blocking state the thyristor is by falling below the holding current, generally by switching off or reversing the voltage in the load circuit.
  • the switch is disposed between the electronic semiconductor device on one side and the fuse and the thyristor on the other side.
  • the switch is closed, so that there is a flow of current from the power generator via the electronic semiconductor device, the switch, the fuse and the thyristor to the energy storage of the energy storage unit.
  • the electronic semiconductor device prevents current from flowing from the energy storage of the energy storage unit to the power generator.
  • Power generators such as a fuel cell, do not tolerate being energetic.
  • the electronic semiconductor device may be formed, for example, as a diode. However, since a diode may be lossy, it is particularly preferred that the electronic semiconductor device is a transistor, in particular a MOSFET (metal oxide semiconductor field effect transistor). Through a MOSFET energy losses can be reduced at the energy storage.
  • MOSFET metal oxide semiconductor field effect transistor
  • a device for storing energy in which two juxtaposed energy storage units are offset relative to one another. This can reduce the outer dimensions of the energy storage device.
  • the energy storage units can be arranged nested inside each other.
  • the device for storing energy can consist of the line element, the energy storage units, the connection device for connection to an energy consumer and the power electronics with a connection element for connection to a power generator.
  • a device for storing energy which has a housing is preferred. As a result, the aforementioned components are protected from external influences.
  • Connecting device for connection to an energy consumer and the connecting element for connection to a power generator may be integrated into the housing. It is particularly advantageous if the line element is releasably secured to the housing. Depending on the required size of the device for storing energy, the line element may be formed smaller or larger. The larger the line element, the more connection options, in particular plug-in connections, for receiving energy storage units have this. If necessary, a line element can be easily and quickly replaced by another, for example, larger, line element.
  • the internal combustion engines for example, ordinary motor vehicles are often oversized by a factor of two.
  • the maximum engine power is needed only during a fraction of the operating time, such as when accelerating from a standstill or in an overtaking maneuver. Most of the time, such an internal combustion engine with significantly lower power would be sufficient.
  • over-sized internal combustion engines are not only more expensive and heavier, they also consume more fuel overall since the efficiency of an internal combustion engine is significantly lower at the bottom of its power curve.
  • the device for storing energy Due to the modular design of the device for storing energy, it can be quickly and inexpensively adapted to the respective additional energy requirements of an internal combustion engine of a motor vehicle.
  • a fuel cell supplies the electrical energy.
  • the performance of the fuel cell in the short term be increased so that the dimensioning of the fuel cell can be formed efficiently.
  • the simple customization of the energy storage device through its modular design of the energy storage units provides a very simple and versatile way of using it to store energy.
  • Figure 1 is a schematic representation of a device for storing energy arranged between a power generator and an energy consumer;
  • Figure 4 is a sectional view of a device for storing energy
  • Fig. 1 shows a schematic representation of a device for storing energy 1 arranged between a power generator 9 and a power consumer 3.
  • the device for storing energy 1 has a
  • the power generator 9 may be a fuel cell.
  • the thyristor 10 If the voltage applied to the energy stores 6 of the energy storage device 1 is too great, the thyristor 10 will fire, resulting in a large current flow the power generator 9 and to trigger the fuse 11 leads.
  • the thyristor 10 blocks in the forward direction up to a certain breakdown voltage. In the forward direction, it can by a current pulse at the gate terminal in a conductive state are switched. In the reverse direction, it blocks the current like a normal diode.
  • the switch 13 is disposed between the electronic semiconductor device 14 on one side and the fuse 11 and the thyristor 10 on the other side.
  • the switch 13 is closed, causing current to flow from the power generator 9 via the electronic semiconductor device 14, through the switch 13, through the fuse 11 and the thyristor 10 the energy storage 6 of the energy storage unit 4 of the device for storing energy 1 comes.
  • the electronic semiconductor device 14 prevents current from flowing from the energy stores 6 of the energy storage unit 4 to the power generator 9, because power generators such as a fuel cell can not tolerate energy sinks.
  • the electronic semiconductor component 14 is preferably designed as a MOSFET.
  • the energy storage 6 are connected to each other.
  • the energy storage units 4 each have two printed circuit boards 5. Between the printed circuit boards 5, the power electronics 8 of the device for storing energy 1 is provided.
  • the energy stores 6 are in particular double-layer capacitors, so-called ultracapacitors, supercapacitors, ultracaps or supercaps.
  • the device for storing energy 1 furthermore has a control device 17, which is suitable in particular for controlling the energy requirement of the energy consumer 3. That is, the controller 17 controls the transition of the energy stored in the power storage device 1 to the power consumer 3.
  • the controller 17 may also control the charging of the power storage device 1.
  • control unit 17 closes the switch or switches 13 of the power electronics (s) 8 of the energy storage unit (s) 4, so that the energy generator (s) 9 can charge the device for storing energy 1 with energy or can.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Fuel Cell (AREA)

Abstract

La présente invention concerne un dispositif pour stocker de l'énergie comprenant: au moins un élément conducteur doté d'au moins un dispositif de connexion destiné à effectuer la connexion à un récepteur d'énergie; au moins deux unités de stockage d'énergie qui sont chacune connectée électriquement de façon amovible à l'élément conducteur ou aux éléments conducteurs. Selon l'invention, une unité de stockage d'énergie présente au moins une platine conductrice qui comporte sur un ou deux côtés une pluralité d'accumulateurs d'énergie qui sont reliés entre eux par des lignes électriques, et au moins une unité de stockage d'énergie présente un système électronique de puissance doté d'un élément de connexion pour effectuer la connexion à un dispositif de production d'énergie. L'invention a également pour objet l'utilisation d'un tel dispositif pour stocker de l'énergie, pour le stockage d'énergie provenant d'un empilement de piles à combustible et/ou pour la restitution de l'énergie accumulée à un empilement de piles à combustible, à un moteur hybride ou à un moteur à combustion interne.
EP06828718A 2005-12-27 2006-12-20 Dispositif pour stocker de l'energie et utilisation d'un tel dispositif pour stocker de l'energie Withdrawn EP1966869A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005062515A DE102005062515A1 (de) 2005-12-27 2005-12-27 Vorrichtung zum Speichern von Energie sowie Verwendung einer derartigen Vorrichtung zum Speichern von Energie
PCT/DE2006/002292 WO2007073726A2 (fr) 2005-12-27 2006-12-20 Dispositif pour stocker de l'energie et utilisation d'un tel dispositif pour stocker de l'energie

Publications (1)

Publication Number Publication Date
EP1966869A2 true EP1966869A2 (fr) 2008-09-10

Family

ID=38135702

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06828718A Withdrawn EP1966869A2 (fr) 2005-12-27 2006-12-20 Dispositif pour stocker de l'energie et utilisation d'un tel dispositif pour stocker de l'energie

Country Status (3)

Country Link
EP (1) EP1966869A2 (fr)
DE (1) DE102005062515A1 (fr)
WO (1) WO2007073726A2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8242624B2 (en) 2009-12-15 2012-08-14 Messier-Dowty Inc Electric accumulator utilizing an ultra-capacitor array
WO2011072366A1 (fr) * 2009-12-15 2011-06-23 Messier-Dowty Inc. Accumulateur électrique utilisant un reseau de super-condensateurs
DE102010012089A1 (de) 2010-03-19 2011-09-22 Enymotion Gmbh Verfahren und Vorrichtung zum Laden eines Akkumulators in einem Hybridsystem aus Brennstoffzelle und Akkumulatoren

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002015363A2 (fr) * 2000-08-18 2002-02-21 Hochschule Technik + Architektur Luzern Installation d'accumulateurs de courant comprenant des batteries et des condensateurs, notamment des supercondensateurs
JP2002330554A (ja) * 2001-04-27 2002-11-15 Kobelco Contstruction Machinery Ltd ハイブリッド車両の電力制御装置および当該電力制御装置を備えたハイブリッド建設機械
DE102004010988A1 (de) * 2004-03-03 2005-09-29 Noell Mobile Systems & Cranes Gmbh Hybridantriebssystem für einen Portalhubstapler

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007073726A3 *

Also Published As

Publication number Publication date
DE102005062515A1 (de) 2007-07-05
WO2007073726A3 (fr) 2007-12-21
WO2007073726A2 (fr) 2007-07-05

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