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1. (WO2018041358) CIRCULATING CURRENT CONTROL IN A MODULAR MULTILEVEL VOLTAGE SOURCE CONVERTER
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2018/041358 International Application No.: PCT/EP2016/070639
Publication Date: 08.03.2018 International Filing Date: 01.09.2016
Chapter 2 Demand Filed: 20.06.2018
IPC:
H02M 7/483 (2007.01)
H ELECTRICITY
02
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
M
APPARATUS 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
7
Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
42
Conversion of dc power input into ac power output without possibility of reversal
44
by static converters
48
using discharge tubes with control electrode or semiconductor devices with control electrode
483
Converters with outputs that each can have more than two voltage levels
Applicants:
ABB SCHWEIZ AG [CH/CH]; Brown Boveri Strasse 6 CH-5400 Baden, CH
Inventors:
JALDANKI, Sivaprasad; IN
RAY, Swakshar; IN
Agent:
AXELL, Kristina; SE
LUNDQVIST, Alida; Forskargränd 7 721 78 Västerås, SE
Priority Data:
Title (EN) CIRCULATING CURRENT CONTROL IN A MODULAR MULTILEVEL VOLTAGE SOURCE CONVERTER
(FR) COMMANDE DE COURANT DE CIRCULATION DANS UN CONVERTISSEUR DE SOURCE DE TENSION MULTINIVEAU MODULAIRE
Abstract:
(EN) The invention is concerned with a modular multilevel voltage source converter and a method and computer program product for handling circulating currents in such a modular multilevel voltage source converter. A control unit of the voltage source converter determines a circulating current control signal contribution (ER1 - ER2 +2VCM) for a phase leg based on the sum of cell voltages in the upper phase arm of the phase leg, the sum of cell voltages in the lower phase arm of the phase leg and at least one modulation reference (mR) and combines (18D) the circulating control signal contribution with a modulation reference (mR) used for one of the phase arms in order to obtain a modified voltage reference (mR1*) for controlling the phase arm to handle a circulating current while a waveshape is formed.
(FR) L'invention concerne un convertisseur de source de tension multiniveau modulaire et un procédé ainsi qu'un produit-programme informatique permettant de gérer des courants de circulation dans un tel convertisseur de source de tension multiniveau modulaire. Une unité de commande du convertisseur de source de tension détermine une contribution de signal de commande de courant de circulation (ER1 - ER2 +2VCM) pour une branche de phase sur la base de la somme des tensions de cellule dans le bras de phase supérieur de la branche de phase, la somme des tensions de cellule dans le bras de phase inférieur de la branche de phase et au moins une référence de modulation (mR) et combine (18D) la contribution de signal de commande de circulation à une référence de modulation (mR) utilisée pour l'un des bras de phase afin d'obtenir une référence de tension modifiée (mR1*) pour commander le bras de phase pour traiter un courant de circulation tandis qu'une forme d'onde est formée.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)