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1. WO2020070421 - METHOD FOR CONTROLLING AN ASSEMBLY OF INVERTERS IN AN ELECTRICITY GENERATION SYSTEM WITH PARALLEL INVERTERS

Publication Number WO/2020/070421
Publication Date 09.04.2020
International Application No. PCT/FR2019/052301
International Filing Date 30.09.2019
IPC
H02M 7/493 2007.01
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
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
493the static converters being arranged for operation in parallel
H02M 7/5395 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
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
539with automatic control of output wave form or frequency
5395by pulse-width modulation
H02P 27/08 2006.01
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
27Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
04using variable-frequency supply voltage, e.g. inverter or converter supply voltage
06using dc to ac converters or inverters
08with pulse width modulation
H02M 1/00 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
1Details of apparatus for conversion
CPC
H02M 2001/0003
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
0003Details of control, feedback and regulation circuits
H02M 7/493
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
493the static converters being arranged for operation in parallel
H02M 7/5395
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
539with automatic control of output wave form or frequency
5395by pulse-width modulation
H02P 27/08
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
27Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
04using variable-frequency supply voltage, e.g. inverter or converter supply voltage
06using dc to ac converters or inverters
08with pulse width modulation
Applicants
  • SAFRAN ELECTRICAL & POWER [FR]/[FR]
Inventors
  • JANKEE, Ashvin
  • CAPRON, Guillaume
  • PAILHOUX, Frédéric
  • MORIN, Pascal
  • DHOKKAR, Sonia
Agents
  • REGIMBEAU
Priority Data
185921404.10.2018FR
Publication Language French (FR)
Filing Language French (FR)
Designated States
Title
(EN) METHOD FOR CONTROLLING AN ASSEMBLY OF INVERTERS IN AN ELECTRICITY GENERATION SYSTEM WITH PARALLEL INVERTERS
(FR) PROCÉDÉ DE COMMANDE D'UN ENSEMBLE D'ONDULEURS DANS UN SYSTÈME DE GÉNÉRATION ÉLECTRIQUE A ONDULEURS PARALLELISES
Abstract
(EN)
The invention concerns a method for controlling an assembly of at least two inverters (1a, 1b) in an electricity generating system with parallel inverters. The method comprises the implementation by at least one data processing unit (2a, 2b) of the steps: (a) for each inverter (1a, 1b) of the assembly, obtaining an input duty factor (PWMi) of an input signal (Si) received by the inverter (1a,1b), (b) calculating a mean duty factor (PWMm) from the input duty factors (PWMi), (c) modulating and synchronising the input signal (Si) received by each inverter (1a, 1b) into an output signal (So) having an output duty factor (PWMo) corresponding to the mean duty factor (PWMm).
(FR)
L'invention concerne un procédé de commande d'un ensemble d'au moins deux onduleurs (1a, 1b) dans un système de génération électrique à onduleurs parallélisés. Le procédé comprend la mise en œuvre par au moins une unité de traitement de données (2a, 2b) d'étapes de: (a) pour chaque onduleur (1a, 1b) dudit ensemble, obtention d'un rapport cyclique d'entrée (PWMi) d'un signal d'entrée (Si) reçu par ledit onduleur (1a,1b), (b) calcul d'un rapport cyclique moyen (PWMm) à partir des rapports cycliques d'entrée (PWMi), (c) modulation et synchronisation du signal d'entrée (Si) reçu par chaque onduleur (1a, 1b) en un signal de sortie (So) présentant un rapport cyclique de sortie (PWMo) correspondant au rapport cyclique moyen (PWMm).
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