FR2839605A1 - INDUCTION ELECTRIC COOKING MODULE AND METHOD OF CONTROLLING THE MODULE - Google Patents
INDUCTION ELECTRIC COOKING MODULE AND METHOD OF CONTROLLING THE MODULE Download PDFInfo
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- FR2839605A1 FR2839605A1 FR0305408A FR0305408A FR2839605A1 FR 2839605 A1 FR2839605 A1 FR 2839605A1 FR 0305408 A FR0305408 A FR 0305408A FR 0305408 A FR0305408 A FR 0305408A FR 2839605 A1 FR2839605 A1 FR 2839605A1
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- electric cooking
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/06—Control, e.g. of temperature, of power
- H05B6/062—Control, e.g. of temperature, of power for cooking plates or the like
- H05B6/065—Control, e.g. of temperature, of power for cooking plates or the like using coordinated control of multiple induction coils
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/04—Sources of current
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- Electromagnetism (AREA)
- Inverter Devices (AREA)
- Control Of High-Frequency Heating Circuits (AREA)
- Cookers (AREA)
- Induction Heating Cooking Devices (AREA)
Abstract
Description
les inducteurs du foyer vent constitues par 2n bobinages.inductors of the home wind consist of 2n coils.
La presente invention concerne un module de cuisson elec- The present invention relates to an electric cooking module
trique a induction comprenant deux inducteurs alimentes chacun par un induction head comprising two inductors each fed by a
generateur (onduleur) recevant la tension redresse du reseau electrique. generator (inverter) receiving the rectifying voltage of the electrical network.
I>'invention concerne egalement un procede de commande d'un tel module. Etat de l'art- Solutions actuelles Les systemes de cuisson par induction a plusieurs foyers (2 ou 4) presents sur le marche grand public utilisent, pour la plupart, The invention also relates to a method for controlling such a module. State of the art- Current solutions Induction cooking systems with several homes (2 or 4) present on the market for the general public use, for the most part,
['architecture de la figure 1A.architecture of Figure 1A.
o Le module elementaire est constitue de deux inducteurs I1, I2 et de deux generateurs G1, G2, chacun de ces generateurs alimentant un inducteur et un seul. Pour une plaque de cuisson a 4 foyers, on utilise deux modules. Sur les reseaux monophases dont les tensions vent supe rieures a 200 V (Europe), le generateur electronique indeniablement le o The elementary module consists of two inductors I1, I2 and two generators G1, G2, each of these generators supplying an inductor and one. For a 4-burner hob, two modules are used. On single-phase networks with wind voltages greater than 200 V (Europe), the electronic generator indiably
s plus approprie a ['application est l'onduleur a resonance G de la figure 1B. More suitable for the application is the resonant inverter G of FIG. 1B.
La resonance est introduite en associant a l'inducteur, de caractere natu rellement inductif, des condensateurs, C1 et C2, classiquement de quel ques centaines de nF, pour aboutir a une frequence de fonctionnement nominale d'une vingiaine de kHz, avec les technologies dtinducteurs ac o tuelles cites pancake,'. Le reglage de la puissance fournie a l'inducteur The resonance is introduced by associating with the inductor, of a naturally inductive nature, capacitors C1 and C2, typically of a few hundreds of nF, to achieve a nominal operating frequency of about twenty kHz, with the technologies inductive transducers cited pancake, '. The adjustment of the power supplied to the inductor
stopere par variation de la frequence de commande de l'onduleur. stop by variation of the inverter control frequency.
Un probleme important apparat lorsque l'on veut realiser le module comportant deux inducteurs et deux generateurs. Les puissances delivrees par les deux foyers doivent pouvoir etre reglees independam s meet. Si l'on applique simultanement des frequences de commande dis tinctes aux deux parties de ce module, on fait apparatre, du fait du couplage electrique des deux onduleurs par une ligne d'alimentation continue unique, des phenomenes de battement en frequence extreme An important problem arises when one wants to realize the module comprising two inductors and two generators. The powers issued by the two homes must be able to be regulated independently. If different control frequencies are simultaneously applied to the two parts of this module, because of the electrical coupling of the two inverters by a single continuous supply line, phenomena of extreme frequency beat are shown.
ment genant pour l'utilisateur et qui doivent etre elimines. to the user, which must be eliminated.
Deux techniques d'association et de commande vent princi palement mises en ceuvre anjourd'hui: - la premire consiste a decoupler electriquement les deux generateurs (onduleurs) a ['aide de fltres passifs (inductances et condensateurs), - la seconde est une option de commande qui conduit a faire fonctionner s en alternance les deux generateurs a des frequences de quelques Hz (figure 2) en synchronisme avec la tension secteur redressee qui ali mente classiquement les generateurs. I1 existe done deux frequences dans le systeme, la frequence de fonctionnement propre des onduleurs (>20kHz) et la frequence a laquelle on autorise cycliquement ce fonc tionnement. La figure 2 montre dans la ligne du haut la tension appli quee au generateur G1 et dans la ligne du teas la tension appliquee au ge Two techniques of association and control are mainly implemented today: - the first consists of decoupling the two generators (inverters) electrically using passive pheres (inductances and capacitors), - the second is an option The control circuit which causes the two generators to operate alternately at frequencies of a few Hz (FIG. 2) in synchronism with the rectified mains voltage which classically supplies the generators. There are therefore two frequencies in the system, the own operating frequency of the inverters (> 20 kHz) and the frequency at which this operation is cyclically authorized. FIG. 2 shows in the top line the voltage applied to the generator G1 and in the line of the voltage applied to the generator.
s nerateur G2.G2 nerder.
Si l'on envisage l'exemple typique d'un module a deux foyers connecte sur une prise normalisee 230V-16A, on peut theoriquement dis poser d'une puissance totale de 3,7kW. Parallelement, pour beneficier de performances de cuisson elevees, la tendance est de permettre o ['attribution quasi complete de cette puissance a un senl foyer (3kW). Les techniques precedentes necessitent alors l'utilisation de deux onduleurs de 3kW, soit une electronique installee d'une puissance globale de 6kW, a If we consider the typical example of a two-hearth module connected to a 230V-16A normalized outlet, we can theoretically say that it has a total power of 3.7kW. At the same time, to benefit from high cooking performance, the trend is to allow the almost complete allocation of this power to a home heater (3kW). The preceding techniques then require the use of two inverters of 3kW, ie an installed electronics with an overall power of 6kW.
comparer a la puissance maximale de 3,7kW gerable par le module. compare to the maximum power of 3.7kW manageable by the module.
Expose de ['invention s La presente invention a pour but de developper un module de cuisson electrique a induction du type correspondent ci-dessus, per mettant de mieux utiliser ltelectronique et surtout de pouvoir disposer au choix sur l'un ou l'autre des deux foyers dans le cas d'un module a deux The aim of the present invention is to develop an induction electric cooking module of the type corresponding above, making it possible to use electronic technology better and, above all, to be able to choose one or the other of two homes in the case of a module has two
foyers, la puissance maximale disponible. homes, the maximum power available.
A cet effet ['invention concerne un module de cuisson par induction du type defni ci-dessus caracterise en ce que - chaque inducteur est forme de deux bobinages independents, - chaque generateur est forme de deux bras, * formes chacun de deux interrupteurs electroniques montes en serie 2s entre les deux bornes d'alimentation du reseau et le point de jonction des deux interrupteurs electroniques est un point de branchement relic a un bobinage de chacun des deux inducteurs, * a chaque bobinage est associe un condensateur de resonance place en serie formant un ensemble dont o. l'une des deux bornes est connectee a l'un des bras et l'autre borne est connectee a un moyen de commutation pour etre reliee directement a l'une des bornes de l'alimentation (etat direct) ou a la borne homologue de l'autre ensemble du meme inducteur (etat poet), s. les moyens de commutation des deux inducteurs vent couples pour ne pas prendre le meme etat en meme temps Le montage du module de cuisson selon ['invention est parfaitement symetrique a un double titre d'abord au niveau de chaque For this purpose the invention relates to an induction cooking module of the type defni above characterized in that - each inductor is formed of two independent windings, - each generator is formed of two arms, each form of two mounted electronic switches in series 2s between the two supply terminals of the network and the junction point of the two electronic switches is a connection point connected to a winding of each of the two inductors, * each winding is associated a resonance capacitor placed in series forming a set of which o. one of the two terminals is connected to one of the arms and the other terminal is connected to a switching means to be connected directly to one of the terminals of the supply (direct state) or to the peer terminal of the other set of the same inductor (state poet), s. the switching means of the two inductors wind couples not to take the same state at the same time The assembly of the cooking module according to the invention is perfectly symmetrical to a double title first at each level.
foyer et entre les deux foyers. Cela permet d'une part de realiser des cir- home and between the two homes. This allows on the one hand to
cuits totalement identiques et interchangeables et d'autre part cela reduit la puissance des deux interrupteurs electroniques associe a chaque bras d'onduleur. Sur le plan industrial cela se traduit par une economic consi completely identical and interchangeable cooks and on the other hand it reduces the power of the two electronic switches associated with each inverter arm. At the industrial level, this translates into an economic consi
s derable tent par le cout des composants que pour la fabrication et le stoc- the cost of components as well as for the manufacture and storage of
kage. Malgre cela tout foyer peut fonctionner a la puissance maximale. Kage. Despite this, every household can operate at maximum power.
Suivant une autre caracteristique interessante ? les moyens According to another interesting feature? ways
de commutation des deux bobinages d'un meme inducteur vent comman- switching of the two coils of the same wind inductor
des de la meme maniere, les bobinages (et leur condensateurs de reso to nance) d'un foyer etant relies directement a l'une des bornes de l'alimentation et les bobinages (et leur condensateurs de resonance) de in the same manner, the coils (and their reso nance capacitors) of a focus being connected directly to one of the terminals of the power supply and the coils (and their resonance capacitors) of
l'autre foyer etant montes en pont entre les deux bras d'un meme genera- the other home being bridged between the two arms of the same
teur. Suivant une autre caracteristique interessante les deux bras d'un meme generateur vent commandee en phase ou en opposition tor. According to another interesting feature the two arms of the same generator wind controlled in phase or in opposition
de phase.phase.
Suivant une autre caracteristique interessante, le moyen de According to another interesting feature, the means of
commutation est muni d'une resistance de passage. switching is provided with a resistance of passage.
Dans ce montage, chaque interrupteur electronique est In this assembly, each electronic switch is
muni d'une diode anti-parallele et d'un condensateur d'aide a la commu- equipped with an antiparallel diode and a capacitor to assist the
tation. Dans le module de cuisson, les moyens de commutation vent commandes de la meme maniere, les deux bobinages associes a leur condensateur de resonance d'un foyer etant chacun relic directement a 2s l'une des deux bornes de l'alimentation et les deux bobinages associes a tation. In the cooking module, the wind switching means controls in the same way, the two windings associated with their resonance capacitor of a hearth being each directly connected to 2s one of the two terminals of the power supply and the two coils associated with
leur condensateur de resonance de l'autre foyer etant montes en serie en- their resonance capacitor of the other furnace being mounted in series
tre les deux bras (etat poet).be both arms (state poet).
D'une maniere particulierement avantageuse, les deux bras d'un meme generateur vent commandes a la meme frequence en phase ou In a particularly advantageous way, the two arms of the same generator are ordered at the same frequency in phase or
en opposition de phase.in opposition of phase.
Suivant une autre caracteristique, le reglage de la puis- According to another characteristic, the adjustment of the power
sance du foyer dans ltetat direct est effectue par le reglage de la frequence in the direct state is achieved by adjusting the frequency
de decoupage et le reglage du foyer dans l'etat pont est effectue par le re- decoupage and adjustment of the hearth in the bridge state is carried out by the
glage des durees respectives des commandes en phase ou en opposition de of the respective durations of the orders in phase or in opposition of
3s phase.3s phase.
Pour le fonctionnement, l'etat totalement inactif d'un foyer, l'autre etant en fonctionnement, est realise en le placO ant dans l'etat pont For operation, the totally inactive state of one hearth, the other being in operation, is realized by placing it in the bridge state.
et en maintenant en permanence la commande en phase. and keeping the control in phase permanently.
Enfin de facOon generale, les inducteurs d'un foyer peuvent Finally, in general, the inductors of a household can
etre constitues par 2n bobinages.be constituted by 2n coils.
Dessins La presente invention sera decrite ci-apres a ['aide d'un s exemple de realisation represente dans les dessins annexes ainsi que des Drawings The present invention will be described hereinafter with the aid of an embodiment shown in the accompanying drawings as well as
schemes expliquant l'art anterieur.schemes explaining the prior art.
- La figure lA est un schema d'un module de cuisson par induction a deux foyers selon l'art anterieur, - la figure 1B est un schema d'un generateur elementaire associe a l'un o des inducteurs des foyers de la figure 1, la figure 2 est un diagramme montrant l'alternance de la commande des deux generateurs du module de cuisson de la figure 1 selon l'art anterieur, la figure 3 montre le schema d'un bras d'onduleur associe a un induc teur, - la figure 4 montre l'etat de branchement direct d'un bobinage et de son condensateur de resonance, - la figure 5 montre l'etat de branchement en pont de deux bobinages d'un meme inducteur et de leur condensateur de resonance, o - la figure 6 represente la commande des bras en phase et en opposition de phase, - la figure 7 est un schema d'un module de cuisson a deux foyers selon un exemple de realisation de ['invention, - la figure 8 represente l'une des confgurations du schema de realisation de la figure 7 dans laquelle l'inducteur I1 est dans l'etat direct et l'in FIG. 1A is a diagram of a two-fired induction cooking module according to the prior art; FIG. 1B is a diagram of an elementary generator associated with one of the inductors of the foci of FIG. FIG. 2 is a diagram showing the alternation of the control of the two generators of the cooking module of FIG. 1 according to the prior art, FIG. 3 shows the diagram of an inverter arm associated with an inductor, FIG. 4 shows the state of direct connection of a winding and its resonance capacitor; FIG. 5 shows the bridge connection state of two windings of the same inductor and their resonance capacitor, FIG. 6 shows the control of the arms in phase and in phase opposition, FIG. 7 is a diagram of a two-fired cooking module according to an exemplary embodiment of the invention, FIG. one of the confgurations of the embodiment of FIG. 7 in which the inductor I1 is in the state of irect and the in
ducteur I2 est dans l'etat poet.I2 is in the poet state.
Description des modes de realisation Description of the embodiments
Selon la fgure 3, l'inducteur (I1, I2) du module de cuisson According to FIG. 3, the inductor (I1, I2) of the cooking module
est divise en deux bobinages independents dont l'un INDl est represente. is divided into two independent windings of which one INDl is represented.
Ce bobinage IND1 est relic par une borne aux interrupteurs electroniques T1 et T2 d'un des deux bras qui recolvent les signaux de commande S1 et S2. Ces interrupteurs electroniques comportent en parallele un conden sateur et une diode non references. L'autre borne du bobinage est reliee en serie au condensateur de resonance C1. En aval du condensateur C1, s le montage comporte un commutateur RL1 qui, en position P1 relic direc tement ['ensemble constitue du bobinage IND1 et du condensateur de re sonance C1 a l'une des bornes de l'alimentation; en position P2 il relic ce meme ensemble a la sortie P2 homologue du commutateur de l'autre bo binage associe au meme foyer. I1 stagit alors d'un montage en pont et le fonctionnement de ce montage depend de la difference des tensions deli This winding IND1 is connected by a terminal to the electronic switches T1 and T2 of one of the two arms which recolvent the control signals S1 and S2. These electronic switches comprise in parallel a non-reference capacitor and diode. The other terminal of the winding is connected in series with the resonance capacitor C1. Downstream of the capacitor C1, the assembly comprises a switch RL1 which, in position P1, directly relates to the set constitutes winding IND1 and capacitor C1 to one of the terminals of the power supply; in position P2 it relic this same set to the output P2 homologue of the switch of the other bo binage associated with the same focus. It is then a bridge mounting and the operation of this assembly depends on the difference of voltages deli
vrees par chacun des deux bras du generateur. by each of the two arms of the generator.
De facon generale, en utilisant une ecriture avec l'indice i, s chaque inducteur (Ii) est forme de deux bobinages independents 1INDi, In general, using a writing with the index i, each inductor (Ii) is formed of two independent windings 1INDi,
INDi') et chaque generateur est forme de deux bras (Bi, Bi+l). INDi ') and each generator is formed of two arms (Bi, Bi + 1).
Les bras Bi vent formes chacun de deux interrupteurs electroniques (Tli, T2i) montes en serie entre les deux bornes d'alimentation (L1, L2) du reseau et le point de jonction (Ai) des deux in o terrupteurs electroniques est un point de branchement relic a un bobi nage (IND1) et (IND2) (respectivement IND1' et IND2') de chacun des deu: The two wind arms each form two electronic switches (Tli, T2i) mounted in series between the two power supply terminals (L1, L2) of the network and the junction point (Ai) of the two electronic switches is a point of contact. connection connected to a bib (IND1) and (IND2) (respectively IND1 'and IND2') of each of the two:
inducteurs (I1, I2).inductors (I1, I2).
A chaque bobinage (INDi) est associe un condensateur de resonance (Ci) place en serie formant un ensemble dont s. l'une des deux bornes est connectee a l'un des bras (Bi) et l'autre borne est connectee a un moyen de commutation (Rli) pour etre reliee directement a l'une des bornes de l'alimentation (etat di rect) ou a la borne homologue de l'autre ensemble du meme induc At each winding (INDi) is associated a resonance capacitor (Ci) placed in series forming a set of which s. one of the two terminals is connected to one of the arms (Bi) and the other terminal is connected to a switching means (Rli) to be connected directly to one of the terminals of the power supply (state of rect ) or to the homologous terminal of the other set of the same induc
teur (etat poet).tor (state poet).
o Enfin, les moyens de commutation (Rli) des deux induc teurs (I1, I2) vent couples pour ne pas prendre le meme etat en meme temps. La figure 4 montre le premier cas de branchement direct du o Finally, the switching means (Rli) of the two inductors (I1, I2) wind couples not to take the same state at the same time. Figure 4 shows the first case of direct connection of the
bobinage IND 1 qui peut alors recevoir toute la puissance disponible. IND 1 coil which can then receive all the available power.
2s La figure 5 montre le cas du branchement en pont de deu: bras d'onduleur B1 et B2, associes aux deux bobinages IND1, IND1' du 2s Figure 5 shows the case of the bridge connection of two inverter arms B1 and B2, associated with the two windings IND1, IND1 'of
meme inducteur I1 et a leur condensateur de resonance. same inductor I1 and their resonance capacitor.
Le chronogramme de la figure 6 represente la commande des tensions VA, VB soit en phase soit en opposition de phase qui concerne surtout le fonctionnement de l'inducteur monte en poet. Pour une commande en phase les bornes de ltensemble constitue des deux bo binages et des deux condensateurs de resonance connectes en pont recOoivent les memes tensions VA et VB de sorte que la difference de ces deux tensions appliquee a ['ensemble est nulle et qu'il n'est traverse par s aucun courant. Les bobinages IND1, IND1' ne fournissent alors aucune energie au recipient Pour une commande en opposition de phase, la difference des deux tensions appliquee a ['ensemble est une tension alternative a la frequence du signal de commande S (typiquement qques lOkHz) et les bo binages IND1 et IND1' peuvent fournir de l'energie au recipient La combinaison d'un bras d'onduleur et d'un bobinage d'un foyer permet de realiser un module de cuisson a deux foyers parfaitement s symetriques ce qui est tres interessant pour la realisation pratique car les interrupteurs electroniques du bras peuvent etre dimensionnes pour la moitie de la puissance maximale d'un foyer puisque l'autre moitie de la puissance est fournie par l'autre bras du generateur associe a l'autre bo The timing diagram of FIG. 6 represents the control of voltages VA, VB, either in phase or in phase opposition, which mainly concerns the operation of the inductor goes up in poetry. For a phase control the terminals of the set constitutes two bins and the two resonance capacitors connected in bridge receive the same voltages VA and VB so that the difference of these two voltages applied to the set is zero and that is traversed by no current. The windings IND1, IND1 'then provide no energy to the container. For an anti-phase control, the difference of the two voltages applied to the set is an alternating voltage at the frequency of the control signal S (typically at 10 kHz) and the IND1 and IND1 'can provide energy to the container The combination of an inverter arm and a coil of a fireplace makes it possible to produce a cooking module with two perfectly symmetrical hotplates which is very interesting. for practical realization because the electronic switches of the arm can be sized for half the maximum power of a home since the other half of the power is provided by the other arm of the generator associated with the other bo
binage du meme inducteur.hoeing of the same inductor.
o Le principe decrit ci-dessus peut se generaliser a la division o The principle described above can be generalized to the division
de l'inducteur d'un foyer en 2n bobinages independents. of the inductor of a fireplace in 2n independent windings.
La figure 7 montre le circuit d'un module selon ['invention compose de deux inducteurs ayant chacun deux bobinages (IND1, IND1') et, (IND2, IND2') et les bras d'onduleur B1 et B2 installes sur ce montage parfaitement symetrique permettent de fournir toute la puissance a un quelconque des inducteurs. Selon la figure 7, chaque inducteur d'un foyer est divise en deux bobinages (IND1, IND1') et (IND2, IND2') et un bras d'onduleur qui leur est respectivement associe. Dans cet exemple les commutateurs vent des relais electromecaniques RL1, RL1', RL2, RL2'. En o parallele aux condensateurs de resonance, on a une resistance R pour permettre d'initialiser correctement les tensions aux bornes du condensa teur lors des changements d'etat des relais. Le changement de mode de fonctionnement par les relais ne se faire que lorsque les onduleurs vent inactifs c'est-a-dire lorsque les signaux de commande S1, S1', S2, S2' des interrupteurs electroniques vent bloques. Les deux positions de fonction nement possible vent donnees ci-apres: - RL1, RL1' en position (P1), RL2, RL2' en position (P2) chaque bobinage de l'inducteur 1 est alimente independamment par chacun des bras a travers les condensateurs de resonance C1 et C1', tandis que les deux o bobinages de l'inducteur 2, en serie avec C2 et C2', vent alimentes si FIG. 7 shows the circuit of a module according to the invention composed of two inductors each having two coils (IND1, IND1 ') and (IND2, IND2') and the inverter arms B1 and B2 installed on this assembly perfectly. symmetric allow to provide all the power to any of the inductors. According to FIG. 7, each inductor of a furnace is divided into two coils (IND1, IND1 ') and (IND2, IND2') and an inverter arm which is respectively associated with them. In this example, the wind switches of the electromechanical relays RL1, RL1 ', RL2, RL2'. In parallel to the resonance capacitors, there is a resistor R to enable the voltages at the terminals of the capacitor to be correctly initialized during the relay state changes. The change of operating mode by the relays can only be done when the inverters are inactive, that is to say when the control signals S1, S1 ', S2, S2' of the electronic switches are blocked. The two possible operating positions are given below: - RL1, RL1 'in position (P1), RL2, RL2' in position (P2) each winding of the inductor 1 is powered independently by each arm through the resonance capacitors C1 and C1 ', while the two o coils of inductor 2, in series with C2 and C2', wind energized if
multanement par la structure en pont constituee des deux bras. La f- multanement by the bridge structure constituted of the two arms. The f
gure 8 fait apparatre plus precisement cette premiere confguration. Figure 8 shows more precisely this first confguration.
- RL2, RL2' en position (P1), RL1, RLl' en position (P2): inversement, chaque bobinage de l'inducteur 2 est maintenant alimente indepen as damment par chacun des bras a travers les condensateurs de reso nance C2 et C2', tandis que les deux bobinages de l'inducteur 1, en serie avec C1 et C1' vent alimentes simultanement par la structure en - RL2, RL2 'in position (P1), RL1, RLl' in position (P2): conversely, each coil of the inductor 2 is now supplied indepen cally by each of the arms through the capacitors reso nance C2 and C2 ', while the two coils of the inductor 1, in series with C1 and C1' wind fed simultaneously by the structure in
pont constituee des deux bras.bridge made up of both arms.
A partir de ces configurations de l'etage de puissance, la commande permet ensuite d'obtenir les differents modes de fonctionne ment desires. Pour cela, on definit tout d'abord la notion de matre et d'esclave. L'ensemble inducteur-generateur matre est celui sur lequel s l'utilisateur demande la puissance la plus elevee. I1 est place dans la configuration ou les deux parties vent alimentees independamment (in From these configurations of the power stage, the command then makes it possible to obtain the different desired operating modes. For this, we first define the notion of master and slave. The master inductor-generator set is the one on which the user requests the highest power. I1 is placed in the configuration where the two parts wind independently (in
ducteur 1 sur la figure 7).driver 1 in FIG. 7).
La commande des deux bras s'opere alors de la facOon sui vante: la frequence des signaux de commande Si est la meme (commande o synchrone) pour les deux bras et elle est reglee en fonction de la puissance desiree sur l'inducteur matre. Par contre, les deux bras peuvent etre commandes soit en phase soit en opposition de phase (figure 6), a l'echelle The control of the two arms then takes place in the following way: the frequency of the control signals Si is the same (synchronous control) for the two arms and is adjusted according to the desired power on the master inductor. By cons, the two arms can be ordered either in phase or in opposition of phase (Figure 6), on the scale
de la frequence de decoupage (>20kHz). the decoupage frequency (> 20kHz).
A frequence donnee, la puissance fournie a l'inducteur s matre est independante du mode en phase ou en opposition de phase, chaque bobinage etant alimente independamment par un bras (tensions At a given frequency, the power supplied to the independent inductor is independent of the in-phase or phase-locked mode, each winding being independently powered by an arm (voltages).
VA et VB).VA and VB).
Dans le cas de l'inducteur esclave, ses deux bobinages en serie avec les condensateurs de resonance vent alimentes par le pont o constitue des deux bras, done par la tension VA - VB. En opposition de phase, cette tension sera un creneau d'amplitude egale a la tension d'alimentation continue des bras et de frequence egale a la frequence im posee par le matre. En phase, la tension VA - VB sera nulle. I1 suffit alors d'alterner, sur quelques periodes du reseau alternatif, le mode en phase et :5 le mode en opposition de phase pour regler la puissance sur l'inducteur esclave. A la limite, si l'on veut totalement arreter ce dernier, on maintient In the case of the slave inductor, its two windings in series with the resonance capacitors wind supplied by the bridge o constitute two arms, therefore by the voltage VA - VB. In opposition of phase, this voltage will be a slot of amplitude equal to the continuous supply voltage of the arms and of frequency equal to the frequency im posé by the master. In phase, the voltage VA - VB will be zero. It then suffices to alternate, over some periods of the alternative network, the in-phase mode and the anti-phase mode to regulate the power on the slave inductor. At the limit, if we want to completely stop it, we keep
en permanence le mode en phase.permanently in phase mode.
En resume, la puissance sur l'inducteur matre est reglee par la frequence de decoupage des bras d'onduleur, la puissance sur l'inducteur esclave par le choix du nombre de periodes reseau sur loquel In summary, the power on the master inductor is regulated by the frequency of decoupage of the inverter arms, the power on the inductor slave by the choice of the number of network periods over which
on autorise le mode en opposition de phase. we allow the mode in opposition of phase.
Cette technique presente deux avantages principaux: - l'electronique (constituee des deux bras) est globalement dimensionnee pour la puissance totale susceptible d'etre fournie aux deux inducteurs sirnultanement, soit 3,7kW, il existe une seule frequence de commande du systeme, ce qui elimine This technique has two main advantages: - the electronics (made up of the two arms) is globally dimensioned for the total power that can be supplied to the two inductors simultaneously, ie 3.7kW, there is only one frequency of control of the system, this which eliminates
tout risque de battement de frequence. any risk of frequency beating.
Claims (5)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0305408A FR2839605B1 (en) | 2002-05-07 | 2003-05-02 | INDUCTION ELECTRIC COOKING MODULE AND METHOD FOR CONTROLLING THE MODULE |
| DE60303350T DE60303350T2 (en) | 2002-05-07 | 2003-05-05 | Induction cooking module and control method of the module |
| AT03291077T ATE316749T1 (en) | 2002-05-07 | 2003-05-05 | INDUCTION COOKING MODULE AND MODULE CONTROL METHOD |
| ES03291077T ES2257649T3 (en) | 2002-05-07 | 2003-05-05 | MODULE OF ELECTRIC COOKING BY INDUCTION AND CONTROL PROCEDURE OF THE MODULE. |
| EP03291077A EP1361780B1 (en) | 2002-05-07 | 2003-05-05 | Induction cooking module and control method of the module |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0205698A FR2839604A1 (en) | 2002-05-07 | 2002-05-07 | Induction module for electric cooking, comprises two inductors each having two independent windings associated with switches which may connect them directly or in series to the rectified supply |
| FR0305408A FR2839605B1 (en) | 2002-05-07 | 2003-05-02 | INDUCTION ELECTRIC COOKING MODULE AND METHOD FOR CONTROLLING THE MODULE |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2839605A1 true FR2839605A1 (en) | 2003-11-14 |
| FR2839605B1 FR2839605B1 (en) | 2004-09-10 |
Family
ID=29252394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR0305408A Expired - Lifetime FR2839605B1 (en) | 2002-05-07 | 2003-05-02 | INDUCTION ELECTRIC COOKING MODULE AND METHOD FOR CONTROLLING THE MODULE |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1361780B1 (en) |
| AT (1) | ATE316749T1 (en) |
| DE (1) | DE60303350T2 (en) |
| ES (1) | ES2257649T3 (en) |
| FR (1) | FR2839605B1 (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004010331B4 (en) | 2004-02-25 | 2014-03-20 | Newfrey Llc | Method and device for generating an electrical heating current, in particular for inductive heating of a workpiece |
| EP1951003B2 (en) † | 2007-01-23 | 2022-11-16 | Whirlpool Corporation | Control method for induction cooking hob and induction cooking hob adapted to carry out such method |
| KR20090057495A (en) * | 2007-12-03 | 2009-06-08 | 삼성전자주식회사 | Induction heating cooker and control method therof |
| ES2353890B1 (en) | 2008-12-19 | 2012-01-26 | Bsh Electrodomesticos España, S.A. | COOKING FIELD WITH AT LEAST THREE WARMING AREAS. |
| ES2384919B1 (en) * | 2009-12-28 | 2013-05-20 | Bsh Electrodomésticos España, S.A. | COOKING DEVICE DEVICE. |
| ES2385807B1 (en) * | 2010-03-16 | 2013-06-17 | BSH Electrodomésticos España S.A. | COOKING HOB DEVICE. |
| ES2386456B1 (en) * | 2010-06-28 | 2013-07-19 | BSH Electrodomésticos España S.A. | COOKING HOB DEVICE |
| EP2506669B2 (en) | 2011-03-29 | 2023-10-11 | BSH Hausgeräte GmbH | Switching device |
| WO2012131526A1 (en) * | 2011-03-30 | 2012-10-04 | BSH Bosch und Siemens Hausgeräte GmbH | Induction heating device |
| EP2704524A1 (en) * | 2012-08-28 | 2014-03-05 | AEG Power Solutions GmbH | Device for heating by means of electromagnetic induction, in particular induction heating or induction furnace |
| ES2673693B1 (en) | 2016-12-23 | 2019-04-09 | Bsh Electrodomesticos Espana Sa | COOKING OVEN AND PROCEDURE FOR THE OPERATION OF A COOKING OVEN |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4749836A (en) * | 1985-11-27 | 1988-06-07 | Kabushiki Kaisha Toshiba | Electromagnetic induction cooking apparatus capable of providing a substantially constant input power |
| DE19708335A1 (en) * | 1996-03-07 | 1997-10-30 | Thomann Electronics Ag | Induction heating hotplates on cooking hob |
| GB2348750A (en) * | 1999-04-09 | 2000-10-11 | Jaeger Regulation | Induction cooking hob |
-
2003
- 2003-05-02 FR FR0305408A patent/FR2839605B1/en not_active Expired - Lifetime
- 2003-05-05 EP EP03291077A patent/EP1361780B1/en not_active Expired - Lifetime
- 2003-05-05 AT AT03291077T patent/ATE316749T1/en not_active IP Right Cessation
- 2003-05-05 ES ES03291077T patent/ES2257649T3/en not_active Expired - Lifetime
- 2003-05-05 DE DE60303350T patent/DE60303350T2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4749836A (en) * | 1985-11-27 | 1988-06-07 | Kabushiki Kaisha Toshiba | Electromagnetic induction cooking apparatus capable of providing a substantially constant input power |
| DE19708335A1 (en) * | 1996-03-07 | 1997-10-30 | Thomann Electronics Ag | Induction heating hotplates on cooking hob |
| GB2348750A (en) * | 1999-04-09 | 2000-10-11 | Jaeger Regulation | Induction cooking hob |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1361780B1 (en) | 2006-01-25 |
| FR2839605B1 (en) | 2004-09-10 |
| ES2257649T3 (en) | 2006-08-01 |
| DE60303350T2 (en) | 2006-09-07 |
| EP1361780A1 (en) | 2003-11-12 |
| DE60303350D1 (en) | 2006-04-13 |
| ATE316749T1 (en) | 2006-02-15 |
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