EP2856597A2 - Unité permettant de contrôler et de gérer des dispositifs de type chargeur de batterie - Google Patents

Unité permettant de contrôler et de gérer des dispositifs de type chargeur de batterie

Info

Publication number
EP2856597A2
EP2856597A2 EP13737388.2A EP13737388A EP2856597A2 EP 2856597 A2 EP2856597 A2 EP 2856597A2 EP 13737388 A EP13737388 A EP 13737388A EP 2856597 A2 EP2856597 A2 EP 2856597A2
Authority
EP
European Patent Office
Prior art keywords
value
current
battery
unit
imax
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Withdrawn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
EP13737388.2A
Other languages
German (de)
English (en)
Inventor
Alessandro Scardovi
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 EP2856597A2 publication Critical patent/EP2856597A2/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Withdrawn legal-status Critical Current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
    • H02J3/00—Circuit arrangements for AC mains or AC distribution networks
    • H02J3/12—Arrangements for adjusting voltage in AC networks by changing a characteristic of the network load
    • 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
    • H02J3/00—Circuit arrangements for AC mains or AC distribution networks
    • H02J3/28—Arrangements for balancing of the load in networks by storage of energy
    • 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
    • H02J7/02—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries for charging batteries from AC mains by converters
    • H02J7/04—Regulation of charging current or voltage
    • 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
    • H02J7/90—Regulation of charging or discharging current or voltage

Definitions

  • the present invention relates to a control and management unit for apparatus of the battery-charger type.
  • Such vehicles comprise an electric motor designed to move the vehicles themselves: this motor is driven by sets of batteries with specific run times (when the batteries are down, they can undergo a recharging process by connecting them to a power supply source).
  • the maximum charging and recharging current i.e., the obtaining of greater instantaneous power levels during discharge.
  • the high recharge current value pennits minimizing the time needed to completely recharge the set of batteries.
  • recharge systems i.e., battery chargers which, following the setting of a number of battery parameters by the user (or by a specifically appointed skilled technician), ensure battery charging according to energy flows defined by means of suitable algorithms, which tend to extend the life and charging capacity of the battery.
  • One of the parameters that can be set is the charge power.
  • the maximum power dedicated to recharging could at most be 1 kW.
  • the main aim of the present invention is to solve the problems referred to above by presenting a control and management unit for apparatus of the battery- charger type, which ensures a fast and effective recharge even in the case of a reduced maximum contractual power drawable from the power mains in compliance with the contract made with the utility supplier- company.
  • one object of the invention is to provide a control and management unit for apparatus of the battery-charger type which enables the utility supplier company to ensure the correct supply of electricity in relation to the requirements of its users for recharging sets of batteries, without having to carry out specific jobs on existing infrastructures.
  • Another object of the invention is to provide a control and management unit for apparatus of the battery-charger type that optimizes the operating efficiency of the battery charger associated with it.
  • a further object of the invention is to provide a control and management unit for apparatus of the battery-charger type with reduced costs, easy to make and safe to apply.
  • fig. 1 represents a chart which shows the indicative distribution of the electric consumption of a home
  • fig. 2 represents a graph which, according to the data in figure 1 , shows the indicative trend of the electric consumption of a home and indicates, with a brace, the part of energy which can be used for the recharge with traditional recharging systems;
  • fig. 3 represents a graph which, according to the data in figure 1 , shows the indicative trend of the electric consumption of a home in proportion to the energy potentially available for the recharge of batteries;
  • fig. 4 represents a graph which shows the energy trend available for the recharge of batteries with a unit according to the invention
  • fig. 5 represents an indicative diagram concerning the installation of a unit according to the invention in an electric system
  • fig. 6 represents the flow diagram of the procedure for the recharge of a battery through a unit according to the invention.
  • control and management unit for apparatus of the battery-charger 2 type.
  • the control and management unit 1 comprises an amperometric detector or current sensor 3 fitted downstream of the energy meter 4 installed by the electricity utility supplier.
  • the unit 1 also comprises a command processor 5 of the apparatus of the type of a battery charger 2.
  • the processor 5 is connected to the power mains downstream of the amperometric detector 3 and has an input 6 for a signal coming from an output terminal 7 of the amperometric detector 3 itself.
  • the signal coming from the output terminal 7 is defined by the value of the current instantaneously dispensed downstream of the meter 4.
  • the processor 5 can comprise a logic apparatus suitable for comparing the cun-ent input value (lass) measured by the amperometric detector 3 (which in this case will be made up of a real ammeter suitable for providing at output a signal proportionate to the value of the detected current) with a predefined current value, corresponding to the maximum current drawable from the power mains (Imax).
  • the logic apparatus will be able to check whether the value of current input (lass) from the mains (and measured by the amperometric detector 3) is the same as the predefined value (Imax).
  • the value of the current input (lass) is above the predefined value (Imax), the current absorbed from the power mains by the battery charger 2 will have to be reduced.
  • the unit 1 will be able to measure the value of the current input (lass) instantaneously through the amperometric detector 3.
  • the logic apparatus of the processor 5 will compare the value of the current input (lass) with the reference value (Imax) and will consequently control the operation of the battery charger 2.
  • the processor 5 will reduce (proportionately) the value of the current absorbed by the battery charger 2 and vice versa.
  • the amperometric detector 3 can be made of a current measurer to which is fitted in cascade a logical apparatus suitable for comparing the measured current input value (lass) with a predefined current value (Imax), corresponding to the maximum current drawable from the power mains.
  • the output terminal 7 of the amperometric detector 3 will be fitted downstream of the logic apparatus of comparison, for the purpose of providing a signal to the signal input 6 of the processor 5 which indicates the maximum intensity of the current that can be supplied to the battery charger 2.
  • the output terminal 7 of the amperometric detector 3 will comprise a signal transmitter according to a mode preferably selected from radio-frequency, wifi, bluetooth®, light waves, including infra-red and ultraviolet, electrical waves, sound waves and the like;
  • the sending of the signal to the signal input 6 can be both by means of wired transmission (power line, optical fibres and the like) and in remote (through a transmission in radio-frequency, wifi, bluetooth®, light waves, including infra-red and ultraviolet, and the like).
  • the input 6 of the processor 5 will comprise a signal receiver according to a mode preferably selected from radio-frequency, wifi, bluetooth®, light waves, including infra-red and ultraviolet, electric waves, sound waves and the like, in order to be able to effectively communicate with the output terminal 7 of the amperometric detector 3.
  • a mode preferably selected from radio-frequency, wifi, bluetooth®, light waves, including infra-red and ultraviolet, electric waves, sound waves and the like, in order to be able to effectively communicate with the output terminal 7 of the amperometric detector 3.
  • the unit 1 can advantageously comprise an interface module for interfacing with a computer network for the instantaneous control of the recharge operations of at least one battery A connected to at least one battery charger 2 associated with the unit 1.
  • the procedure for recharging a battery through a unit 1 according to the invention consists in performing a series of consecutive stages.
  • the charge current will have to be reduced by a value equal to the difference between the maximum set value (Imax) and the measured instantaneous input value (lass) acting on the battery charger 2;
  • the charge current will have to be increased by a value equal to the difference between the maximum set value (Imax) and the measured instantaneous input value (lass) acting on the battery charger 2.
  • the object to be achieved therefore by means of the unit 1 is to absorb from the mains the maximum current (Imax) which the mains can supply in accordance with the contract that already exists with the supplier.
  • the unit 1 therefore continuously measures the current input (lass) and adapts the battery charger 2 so this constantly draws the maximum current allowed.
  • the result is that the current conveyed to the battery A is always the maximum possible and is modulated according to the loads B connected upstream in the rest of the mains.
  • the user can use any household appliance without worrying about the current conveyed to the battery A which will be automatically adapted.
  • the operating principle is the following: on the battery charger 2, the maximum instantaneous power is set, i.e., the contractual power agreed, e.g., in Italy, with ENEL Distribuzione. For household contracts, this value is normally 3 kW.
  • the battery charger 2 by reading the current through the amperometric detector 3 located in the proximity of the pre-existing meter 4 and calculating the absorbed instantaneous power, will update the maximum drawable current to be used for recharging at any given time.
  • the chart in figure 1 shows an example of recharge considering a maximum power contract of 3 kW and the normal use of the resources of a home, considering very low absorption moments, e.g., Tl to T5, and high absorption moments, e.g., T6 and T7 (when the washing machine is switched on) or T12 to T15 (when the air-conditioning is switched on).
  • very low absorption moments e.g., Tl to T5
  • high absorption moments e.g., T6 and T7 (when the washing machine is switched on) or T12 to T15 (when the air-conditioning is switched on).
  • the graph according to the figure 2 displays the data of the chart in figure 1 : as can be seen, the graph shows the power absorbed by the appliances in the home and therefore the maximum absorbable power for the recharge, with traditional systems (with constant absorption), avoiding power limiter disconnection, is the difference between the maximum value 3 kW, and the maximum peak absorbed during the day of 2.3 kW, and is therefore 0.7 kW.
  • the traditional charging system can be set at a constant power of 0.7 kW.
  • the invention instead permits changing this maximum value, during recharge, depending on changes in absoiption of the other devices connected to the same power mains (loads B).
  • the graph in figure 3 shows, by the line 8, the power absorbed by the loads B in the home; by the line 9, on the other hand, the values are represented calculated as the difference between the maximum contracted value of 3 kW, and the instantaneous power absorbed by the aforementioned loads B.
  • the graph in figure 4 identifies a lower area 10 which represent the energy normally available for the charge without adopting a unit 1 according to the invention; the entire area under the line 1 1 , including the lower area 10, is the energy available for recharging with the unit 1. As can be seen the quantity of charge is considerably greater and could easily be more than double depending on the use of the electricity in the home.
  • this energy control system can be easily integrated in the new smart grid energy management system called "Smart Grid” built by the Italian company ENEL, the new energy management project, including that produced from renewable sources.
  • the unit 1 therefore consists of an amperometric detector 3 which conveys the acquired values towards the battery charger 2.
  • the amperometric detector 3 sends the measurements towards the battery charger 2 at a fixed frequency.
  • the processor 5 associated with the battery charger 2 which already has the preset maximum power value (dependent on the Imax maximum current because the mains voltage is fixed and constant) to be drawn from the mains, makes the calculation and sets the new value.
  • the electricity arrives from the grid.
  • the meter 4 of the energy supplier separates it and creates a private user grid. All the energy that passes through the meter 4 is measured and charged to the contracted user.
  • This instrument has a double function: it measures the energy consumed and disconnects from the mains in case of malfunction of the private grid or in case of excess absorption. At this point, the energy is distributed to the user.
  • the amperometric detector 3 measures the intensity of the absorbed current and is therefore fitted immediately downstream of the pre-existing meter 4 (it could potentially also be installed immediately upstream of this but this possibility is not normally considered because that which is upstream of the meter belongs to the supplier and cannot be tampered with by the user).
  • the amperometric detector 3 of the unit 1 sends the details of the current input (lass) at any given time towards the battery charger 2 by means of a suitable connection of one of its output terminals 7 to an input 6 of a processor associated with the battery charger 2 itself.
  • the battery charger 2 is connected to the private power grid of the home from where it draws the energy to be conveyed to the battery A to be charged.
  • the operation of the battery charger 2 is affected by the reading of the amperometric detector 3: the recharge algorithms are specific for each type of battery, and consequently the battery charger 2 itself must know various specific parameters which can be programmed inside during configuration, or else can be read directly by the battery A when this is connected to the battery charger 2. Besides these parameters, during configuration, the maximum power of the user ' s contract, or the maximum power to be absorbed from the mains, must be set which must in any case be less than the maximum power of the contract. This way, the battery charger 2 will absorb the maximum available power to prevent disconnection from the power mains due to excessive absorbed power.
  • the advantages of the unit 1 and of the procedure applied by it are the following:
  • the present invention solves the previously-expounded problems, presenting a control and management unit 1 for apparatus of the battery charger type 2 which permits quick and effective recharging even in the case of a reduced maximum power drawable from the power mains in conformity with the contract made with the utility supplier company.
  • the unit 1 ensures the utility supplier company is able to correctly supply electricity, in relation to the requirements of its users, to recharge sets of batteries A, without carrying out specific jobs on existing infrastructures.
  • control and management unit 1 optimizes the operating efficiency of the battery charger 2 associated with it.
  • the Imax current can be changed automatically according to the time of day: in practice, time bands can be set in which to establish a different Imax value, in relation e.g. to different costs of the electricity supply according to the time of day, and different possible variations of the maximum power that can be absorbed from the mains according to particular supply contracts.
  • the unit 1 can comprise a timer (intended to pace the time during a single day and/or within long periods of time such as weeks, months, years, etc.) to a unit for setting the value of the Imax current enslaved to the timer: the setting unit therefore, in correspondence to the time read by the timer can raise and/or reduce the Imax intensity to adapt it to the contractual opportunities of that particular time.
  • a timer intended to pace the time during a single day and/or within long periods of time such as weeks, months, years, etc.
  • the unit 1 according to the invention can be used to recharge all types of batteries, including those not designed for automotive use, but for static build-up use.
  • the unit 1 By means of the unit 1 , it will in fact be possible to recharge any type of set of batteries, depending on the specific requirements to be catered to. This is especially useful to explain the great versatility of the unit 1 according to the invention.
  • the materials used, and the dimensions can be any according to requirements and the state of the art.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Secondary Cells (AREA)

Abstract

La présente invention a trait à une unité de commande et de gestion (1) d'un appareil de type chargeur de batterie (2) qui comprend un détecteur électrochimique (3) qui est ajusté en aval du compteur d'énergie (4) qui est installé par le fournisseur de service public de distribution d'électricité et un processeur de commande (5) de l'appareil de type chargeur de batterie (2), lequel processeur (5) est connecté au réseau électrique en aval du détecteur électrochimique (3) et est doté d'une entrée (6) qui est destinée à un signal en provenance d'une borne de sortie (7) du détecteur électrochimique (3) lui-même. Le signal est défini par la valeur du courant instantanément distribué en aval du compteur (4).
EP13737388.2A 2012-05-29 2013-05-22 Unité permettant de contrôler et de gérer des dispositifs de type chargeur de batterie Withdrawn EP2856597A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000293A ITBO20120293A1 (it) 2012-05-29 2012-05-29 Gruppo di controllo e gestione per apparati del tipo dei caricabatterie
PCT/IB2013/054218 WO2013179182A2 (fr) 2012-05-29 2013-05-22 Unité permettant de contrôler et de gérer des dispositifs de type chargeur de batterie

Publications (1)

Publication Number Publication Date
EP2856597A2 true EP2856597A2 (fr) 2015-04-08

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP13737388.2A Withdrawn EP2856597A2 (fr) 2012-05-29 2013-05-22 Unité permettant de contrôler et de gérer des dispositifs de type chargeur de batterie

Country Status (3)

Country Link
EP (1) EP2856597A2 (fr)
IT (1) ITBO20120293A1 (fr)
WO (1) WO2013179182A2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2609074B1 (es) * 2015-10-09 2017-12-26 Joan Comellas Cabeza Procedimiento y sistema de control de consumo para cargadores
IT201700031303A1 (it) * 2017-03-22 2018-09-22 Leonardo Spacone Metodo di gestione e ricarica della batteria di veicoli elettrici, particolarmente in ambienti domestici o simili.
FR3101580A1 (fr) * 2019-10-07 2021-04-09 Qovoltis Dispositif électrique de gestion énergétique

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202004465U (zh) * 2010-11-05 2011-10-05 华南理工大学 系统节能器

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2013179182A2 *

Also Published As

Publication number Publication date
WO2013179182A3 (fr) 2014-10-30
ITBO20120293A1 (it) 2013-11-30
WO2013179182A2 (fr) 2013-12-05

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