EP3616252A1 - Système d'accumulateur de courant combiné et système de gestion à cet effet - Google Patents

Système d'accumulateur de courant combiné et système de gestion à cet effet

Info

Publication number
EP3616252A1
EP3616252A1 EP17812272.7A EP17812272A EP3616252A1 EP 3616252 A1 EP3616252 A1 EP 3616252A1 EP 17812272 A EP17812272 A EP 17812272A EP 3616252 A1 EP3616252 A1 EP 3616252A1
Authority
EP
European Patent Office
Prior art keywords
power storage
storage system
accumulator
capacitor
storage unit
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Withdrawn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
EP17812272.7A
Other languages
German (de)
English (en)
Inventor
Felice Estermann
Remo Estermann
Andres Stadtmann
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP3616252A1 publication Critical patent/EP3616252A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • H02J7/00—Circuit arrangements for charging or depolarising 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M10/4264—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing with capacitors
    • 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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
    • H02J7/0014—Circuits for equalisation of charge between batteries
    • H02J7/0019—Circuits for equalisation of charge between batteries using switched or multiplexed charge circuits
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
    • 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
    • Y02E60/10—Energy storage using batteries

Definitions

  • electrochemical storage unit or at least one
  • the internal resistances of the cells additionally increase or decrease the charging efficiency in addition, if you load fast with high currents or demanded high power peaks, the latter is described with the so-called Peukert effect or the rate-capacity effect.
  • the present invention such as capacitors or supercapacitors with fixed capacitance values, or else variable capacitors with adjustable capacitance values, are suitable as storage of electrical charge and the associated energy, in contrast to electrochemical storage units, because of their low internal resistance, especially for high power consumptions or discharges. in a more limited time frame.
  • capacitors or supercapacitors with fixed capacitance values or else variable capacitors with adjustable capacitance values
  • electrochemical storage units because of their low internal resistance, especially for high power consumptions or discharges. in a more limited time frame.
  • Capacitors e.g. Vacuum, air, mica, glass,
  • Trimmer capacitors are intended to be within the scope of the disclosure of the present application.
  • capacitors over rechargeable battery packs are their high power density with high peak current capability, furthermore the significantly greater cycle stability, the short charging times, the
  • each capacitor has small differences in its properties from the other specimens, e.g. at the ESR value (spare series resistance or internal
  • Loss resistance it is necessary to balance the capacitors by means of a passive balancing - as mentioned above, for example with resistors - or by means of an active balancing with an electronic control circuit.
  • Capacitors and a management system for this purpose which is generally optimized in its properties, its application and its lifetime. In particular, should
  • Accumulator cell comprises and - arranged in parallel thereto - a capacitor storage unit or a
  • Capacitor module at least one capacitor.
  • This Combined power storage system further includes at least one common management system that controls both the storage battery unit and the capacitor storage unit simultaneously.
  • the inventive shared management system of a combined power storage system according to the invention may comprise separate part management systems, at least a first for the accumulator storage unit and at least a second for the capacitor storage unit. In any case, these sub-management systems remain connected to the common accumulator-capacitor management system according to the invention, which ultimately and according to the invention are always both
  • a combined power storage system according to the invention is characterized in that the
  • BMS battery management system
  • Such a management system according to the invention is on the one hand an active management system, ie, it is not a charge surplus of a cell passively converted into heat, but actively by means of a balancing the balancing between the individual accumulator cells and / or the individual capacitors. This hardly arises
  • Management system are decoupled from an entire, uniform charging current of an external charging source and further controlled according to the invention by means of a separate or integrated into the management system microcontroller, targeted per accumulator cell or capacitor.
  • a separate or integrated into the management system microcontroller targeted per accumulator cell or capacitor.
  • a management system is designed so that it forms a potential-free, so-called “virtual" power source within the system, regardless of an external charging source and also independent of the respective operating state of the combined power storage system, a power source for The current of this virtual current source is also according to the invention by means of individually controllable switch, preferably
  • the management system is also by the described virtual power source and the described individual switch, not as usual down, but leveling up or balancing.
  • the management system according to the invention could be described as progressive and not degressive, because not stronger cells are downshifted to a lower charge level, but the weaker ones up to the charge level of the stronger ones.
  • Boost currents both as described above can be done by means of a current drawn from the virtual power source, as well as by means of a stream from an external power source, and by means of a stream of a subsystem of a multi-combined combined power storage system according to the invention.
  • microcontroller is preferably a
  • Boost currents deposited it is preferably defined how the respective state of the respective accumulator cell or the respective capacitor based on which
  • Sensor data can be determined.
  • the algorithm further defines that more or / and longer time intervals and / or possibly higher boost currents can be allocated to the determined weakest accumulator cells or capacitors or subsystems as well.
  • the "strongest" accumulator cells or capacitors or subsystems are under
  • the algorithm may further provide that the height of the boost currents may be variable, eg in
  • the algorithm further preferably defines
  • Thresholds which is a "working window" of the boost
  • the upper threshold is intended to prevent an unnecessarily energy-consuming
  • the lower threshold is to prevent a completely or too heavily discharged cell from being boosted instead of being replaced.
  • microcontroller or deposited
  • Algorithm are designed so that a dynamic compensation takes place.
  • the desired balanced status can sometimes be higher or lower.
  • the decisive factor is the duration of the
  • microcontroller and the stored algorithm are designed so that boost orders or hierarchies are given. For example, the weakest subsystem (s) are balanced first, and then the entire system.
  • the goal of all these measures is to create a smart controller that avoids unnecessary balancing operations, while saving as much time and as possible
  • individual accumulator cells and / or capacitors and / or subsystems can take place here not only during a charging process, but also under load during discharging, as well as at rest.
  • SoC State of
  • This SoC is according to the invention not only during one
  • Sleep mode of a combined power storage system according to the invention can be displayed.
  • a second indicator is the so-called SoH
  • the microcontroller is designed so that it can detect a further indicator, namely the number of boosts per time interval.
  • the device for this purpose should be called Boost Counter.
  • Boost is referred to in the present patent application for each accumulator cell, capacitor or subsystem individually controllable charging current. Characterized in that by an inventive
  • Accumulator-capacitor management system whenever necessary, automatically for the respective accumulator cell or the respective capacitor or the respective subsystem of the required charging or compensation current is allocated, gives a detection or count of the boosts a direct inference to the capacity of the respective accumulator cell or the respective capacitor or the respective
  • both storage units each comprise at least one switching contact, the or the continue
  • At least one coil is switchable or are.
  • an electronically controllable resistor Preferably arranged at least at the capacitor storage unit initially an electronically controllable resistor. This resistance fulfills the one hand, the purpose
  • Resistance increase, for example, when switching on or generally with very different voltages between the accumulator and the capacitor storage unit.
  • Resistor may be arranged a circuit for voltage adjustment, which comprises at least one coil and at least two controllable switching contacts.
  • microcontroller is preferably a
  • the system preferably comprises at least one current sensor as a signal generator for the microcontroller of the accumulator-capacitor management system for an automatic one
  • the current sensor is also important for determining SoC and SoH.
  • Accumulator-capacitor management system preferably an alarm output interface, for example, for the output of an optical and / or acoustic alarm signal or for the
  • the system preferably has a display for displaying the processes taking place, but moreover at least one communication module for system-external communication, preferably bidirectional. This can be a serial,
  • a GSM module can be used for sending SMSes
  • a GPS module can be arranged.
  • Communication types is preferably encrypted and signed.
  • User input interface for an integrated or external display with input capability.
  • This user input interface preferably also provides a remote control, but also the possibility of remote maintenance by means of an IP address and / or a server.
  • a cooling and / or ventilation device for the power storage system itself can, in addition to a cooling and / or ventilation device for the power storage system itself, optionally a
  • Power storage system preferably modular as a rack or rack constructed with rails and in this way on
  • the rack may be configured as a housing, which is preferably designed as a protected against contact, foreign body and moisture system.
  • the degree of protection according to IP may range from IP21XX to IP68DH, depending on the application of the combined power storage system, For example, even as a drive unit of watercraft. Within the range mentioned, the selected degree of protection is preferably IP53XX at the factory
  • Non-volatile safety memory for the system data.
  • system data are preferably transmitted to a server by means of the interfaces described above.
  • the power supply of the controller of a combined power storage system according to the invention is preferably 12 volts.
  • the isolation voltage is
  • a print i. an accumulator or
  • Capacitor memory unit is designed to preferably comprise eight individual series-connected battery cells or eight individual capacitors arranged in series.
  • a current storage system is characterized by a certain ratio, which is selected between the rated capacity of the accumulator storage unit in watt-hours and the nominal capacity of the capacitor storage unit, also in watt-hours.
  • This ratio between accumulator and capacitor capacitance ranges from 1: 1 to 1: 200 and is preferably approximately 1:80. Namely, it has been found that at this ratio, optimal storage of the accumulator storage unit by the capacitor storage unit is made such that an average power peak reduction of about 60% for 6 seconds at a load of 1 C and at an ambient temperature of 20 centigrade
  • this ratio can vary according to the invention within the specified range.
  • the combined current storage system according to the invention can be provided, the measurements of the voltage or other values not only with a measuring method, but with two different
  • Fig. 1 is a symbolic and exemplary scheme of a
  • Capacitor memory unit 3a a further preferably electronically controlled resistor 10 arranged in series.
  • the two sub-management systems 9b and 9c are connected in parallel with a common accumulator-capacitor management system 9a, quasi as
  • Fig. 6 shows by means of a graph that at ambient conditions of 20 degrees Celsius and a load of 1 C, the load peaks in a combined power storage system according to the invention within the first 2 seconds are reduced by 80 percent within the next 2 seconds by 55, by 25 within the next 2 seconds and by 10 within the next 2 seconds.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

L'invention concerne un système d'accumulateur de courant (100a) combiné, une unité de stockage (la) à accumulateurs comprenant au moins un élément accumulateur (2a-2f) rechargeable et une unité de stockage (3a) à condensateurs comprenant au moins un condensateur (4a-4f). L'unité de stockage (la) à accumulateurs et l'unité de stockage (3a) à condensateurs sont montées en parallèle et aussi bien l'unité de stockage (la) à accumulateurs que l'unité de stockage (3a) à condensateurs peuvent être commandées simultanément au moyen d'un système de gestion (9a-9c) commun.
EP17812272.7A 2016-11-09 2017-11-08 Système d'accumulateur de courant combiné et système de gestion à cet effet Withdrawn EP3616252A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016013251.5A DE102016013251A1 (de) 2016-11-09 2016-11-09 Kombiniertes Stromspeicher-System und Management-System hierfür
PCT/IB2017/056976 WO2018087667A1 (fr) 2016-11-09 2017-11-08 Système d'accumulateur de courant combiné et système de gestion à cet effet

Publications (1)

Publication Number Publication Date
EP3616252A1 true EP3616252A1 (fr) 2020-03-04

Family

ID=60081680

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17812272.7A Withdrawn EP3616252A1 (fr) 2016-11-09 2017-11-08 Système d'accumulateur de courant combiné et système de gestion à cet effet

Country Status (4)

Country Link
US (1) US20200259219A1 (fr)
EP (1) EP3616252A1 (fr)
DE (1) DE102016013251A1 (fr)
WO (1) WO2018087667A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114996981B (zh) * 2022-08-08 2022-11-18 中国科学院电工研究所 一种分布式能源聚合自主构网能力分析方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5200986B2 (ja) * 2009-02-17 2013-06-05 新神戸電機株式会社 電源装置
JP6170816B2 (ja) * 2013-11-18 2017-07-26 Fdk株式会社 バランス補正装置及び蓄電装置
KR20160097637A (ko) * 2015-02-09 2016-08-18 (주)브이엠이코리아 차세대 친환경 자동차용 2차 전지 제어장치

Also Published As

Publication number Publication date
WO2018087667A1 (fr) 2018-05-17
DE102016013251A1 (de) 2017-11-02
US20200259219A1 (en) 2020-08-13

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