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1. WO2020065226 - ELECTROMAGNETIC FILTERING OF A CONTROL CIRCUIT OF AN ELECTRIC MOTOR

Publication Number WO/2020/065226
Publication Date 02.04.2020
International Application No. PCT/FR2019/052271
International Filing Date 25.09.2019
IPC
H02P 29/50 2016.01
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
29Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
50Reduction of harmonics
H02M 7/06 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
7Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
02Conversion of ac power input into dc power output without possibility of reversal
04by static converters
06using discharge tubes without control electrode or semiconductor devices without control electrode
CPC
H02M 1/44
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
1Details of apparatus for conversion
44Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
H02M 7/062
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
7Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
02Conversion of ac power input into dc power output without possibility of reversal
04by static converters
06using discharge tubes without control electrode or semiconductor devices without control electrode
062Avoiding or suppressing excessive transient voltages or currents
H02M 7/53875
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
7Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
42Conversion of dc power input into ac power output without possibility of reversal
44by static converters
48using discharge tubes with control electrode or semiconductor devices with control electrode
53using devices of a triode or transistor type requiring continuous application of a control signal
537using semiconductor devices only, e.g. single switched pulse inverters
5387in a bridge configuration
53871with automatic control of output voltage or current
53875with analogue control of three-phase output
H02P 29/50
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
29Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
50Reduction of harmonics
Applicants
  • VALEO SYSTEMES THERMIQUES [FR]/[FR]
Inventors
  • BONNEAU, David
  • BERTHELOT, Julien
  • LAPIERRE, William
  • LE CURIEUX-BELFOND, Lucien
Agents
  • TRAN, Chi-Hai
Priority Data
185876725.09.2018FR
Publication Language French (FR)
Filing Language French (FR)
Designated States
Title
(EN) ELECTROMAGNETIC FILTERING OF A CONTROL CIRCUIT OF AN ELECTRIC MOTOR
(FR) FILTRAGE ÉLECTROMAGNÉTIQUE D'UN CIRCUIT DE CONTRÔLE D'UN MOTEUR ÉLECTRIQUE
Abstract
(EN)
The invention relates to a control circuit (1) of an electric motor (4), the control circuit (1) comprising a filtering device (13) in order to filter the high frequencies which are capable of generating electromagnetic radiation which is disruptive during the driving of the electric motor (4). To this end, the filtering device (13) comprises a first filtering device (131) which is positioned as a branch from a power bridge (12) which drives the electric motor (4), each filtering branch which forms the first filtering device (131) being located near the power bridge (12) and/or one of the corresponding power branches (A, B, C) of said power bridge (12) such that a length of electrical conductor (1313) which connects said filtering branch to said power branch is less than 20 mm. The invention also relates to a fan motor group (8) for a motor vehicle which comprises such a control circuit (1).
(FR)
L'invention concerne un circuit de contrôle (1) d'un moteur électrique (4), le circuit de contrôle (1) comprenant un dispositif de filtrage (13) afin de filtrer les hautes fréquences susceptibles de générer un rayonnement électromagnétique perturbant lors du pilotage du moteur électrique (4). À cet effet, le dispositif de filtrage (13) comprend un premier dispositif de filtrage (131) placé en dérivation d'un pont de puissance (12) pilotant le moteur électrique (4), chaque branche de filtrage formant le premier dispositif de filtrage (131) étant située à proximité du pont de puissance (12) et/ou de l'une des branches de puissance (A, B, C) correspondante dudit pont de puissance (12) de manière à ce qu'une longueur de conducteur électrique (1313) reliant ladite branche de filtrage à ladite branche de puissance soit inférieure à 20 mm. L'invention concerne aussi un groupe moto-ventilateur (8) pour véhicule automobile comprenant un tel circuit de contrôle (1).
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