Processing

Please wait...

Settings

Settings

Goto Application

1. EP3963710 - METHOD FOR OPERATING AN ELECTRIC MACHINE, APPARATUS

Office
European Patent Office
Application Number 20712335
Application Date 18.03.2020
Publication Number 3963710
Publication Date 09.03.2022
Publication Kind A1
IPC
H02P 31/00
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
31Arrangements for regulating or controlling electric motors not provided for in groups H02P1/-H02P5/, H02P7/129
H02P 25/098
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
25Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
02characterised by the kind of motor
08Reluctance motors
098Arrangements for reducing torque ripple
CPC
H02P 25/098
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
25Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
02characterised by the kind of motor
08Reluctance motors
098Arrangements for reducing torque ripple
H02P 23/0031
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
23Arrangements or methods for the control of AC motors characterised by a control method other than vector control
0004Control strategies in general, e.g. linear type, e.g. P, PI, PID, using robust control
0031implementing a off line learning phase to determine and store useful data for on-line control
H02P 23/0004
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
23Arrangements or methods for the control of AC motors characterised by a control method other than vector control
0004Control strategies in general, e.g. linear type, e.g. P, PI, PID, using robust control
H02P 25/03
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
25Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
02characterised by the kind of motor
022Synchronous motors
03with brushless excitation
H02P 2006/045
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
6Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
04Arrangements for controlling or regulating the speed or torque of more than one motor
045Control of current
H02P 6/34
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
6Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
34Modelling or simulation for control purposes
Applicants BOSCH GMBH ROBERT
Inventors GERING STEFAN
MANDERLA MAXIMILIAN
Designated States
Title
(DE) VERFAHREN ZUM BETREIBEN EINER ELEKTRISCHEN MASCHINE, VORRICHTUNG
(EN) METHOD FOR OPERATING AN ELECTRIC MACHINE, APPARATUS
(FR) PROCÉDÉ POUR FAIRE FONCTIONNER UNE MACHINE ÉLECTRIQUE, DISPOSITIF
Abstract
(DE) Die Erfindung betrifft ein Verfahren zum Betreiben einer elektrischen Maschine (1), insbesondere eines Kraftfahrzeugs, die einen Stator (4) und einen Rotor (2) aufweist, wobei der Stator (4) eine Statorwicklung (5) mit zumindest drei Phasen (U,V,W) aufweist, und wobei der Rotor (2) auf einer Rotorwelle (3) angeordnet/anordenbar ist, wobei in Abhängigkeit von einer die Maschine (1) modellierenden zeitinvarianten Differentialgleichung ein Soll-Stromwert (ISoll,fl) für die Statorwicklung (5) zum Erzeugen eines angeforderten Drehmoments und/oder einer angeforderten Drehzahl ermittelt wird, wobei der Soll-Stromwert (ISoll,fl) mit einem Ist-Stromwert (IIst,fl) der Statorwicklung (5), der mit durch die Phasen (U,V,W) fließenden elektrischen Phasenströmen ( IU,IV,IW) korrespondiert, verglichen wird, und wobei in Abhängigkeit von dem Vergleich die Phasen (U,V,W) derart bestromt werden, dass eine Abweichung von dem Ist-Stromwert (IIst,fl) zu dem Soll-Stromwert (ISoll,fl) verringert wird. Es ist vorgesehen, dass die zeitinvariante Differentialgleichung in Abhängigkeit von einer periodischen, linearen Differentialgleichung mittels einer Floquet-Transformation ermittelt wird.
(EN) The invention relates to a method for operating an electric machine (1), in particular of a motor vehicle, that has a stator (4) and a rotor (2), wherein the stator (4) has a stator winding (5) having at least three phases (U,V,W), and wherein the rotor (2) is arranged/arrangeable on a rotor shaft (3), wherein a time-invariant differential equation modelling the machine (1) is taken as a basis for ascertaining a desired current value (I desired,f l) for the stator winding (5) for producing a required torque and/or a required rotation speed, wherein the desired current value (I desired,fl) is compared with an actual current value (I actual,fl) of the stator winding (5), which actual current value corresponds to electric phase currents ( I U ,I V ,I W ) flowing through the phases (U,V,W), and wherein the comparison is taken as a basis for passing current through the phases (U,V,W) such that a difference from the actual current value (I actual,fl) to the desired current value (I desired,fl) is reduced. There is provision for the time-invariant differential equation to be ascertained on the basis of a periodic, linear differential equation by means of a Floquet transformation.
(FR) L’invention concerne un procédé pour faire fonctionner une machine (1) électrique, notamment d’un véhicule à moteur, la machine présentant un stator (4) et un rotor (2), le stator (4) présentant un enroulement statorique (5) comportant au moins trois phases (U, V, W), et le rotor (2) étant disposé/pouvant être disposé sur un arbre de rotor (3), une valeur de courant de consigne (I Soll,f l) pour l’enroulement statorique étant déterminée, en fonction d’une équation différentielle invariante dans le temps et modélisant la machine (1), pour générer un couple nécessaire et/ou un régime nécessaire, la valeur de courant de consigne (I Soll,fl) étant comparée à une valeur de courant réelle (I Ist,fl) de l’enroulement statorique (5), laquelle valeur de courant réelle correspond à des courants de phase (I U ,I V ,I W ) électriques circulant à travers les phases (U, V, W), et, en fonction de la comparaison, les phases (U, V, W) étant alimentées en courant de manière à réduire un écart entre la valeur de courant réelle (I Ist,fl) et la valeur de courant de consigne (I Soll,fl). Selon l’invention, l’équation différentielle invariante dans le temps est déterminée, en fonction d’une équation différentielle périodique linéaire, au moyen d’une transformation de Floquet.