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1. (WO2019048475) FLOATING VOLTAGE PROCESSING CIRCUIT FOR MULTIPATH MPPT PHOTOVOLTAIC CONVERTER
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Pub. No.: WO/2019/048475 International Application No.: PCT/EP2018/073864
Publication Date: 14.03.2019 International Filing Date: 05.09.2018
IPC:
H02M 1/32 (2007.01) ,H02M 3/158 (2006.01) ,H02M 3/156 (2006.01) ,H02H 3/18 (2006.01) ,H02H 7/20 (2006.01) ,H02J 3/38 (2006.01)
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
1
Details of apparatus for conversion
32
Means for protecting converters other than by automatic disconnection
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
3
Conversion of dc power input into dc power output
02
without intermediate conversion into ac
04
by static converters
10
using discharge tubes with control electrode or semiconductor devices with control electrode
145
using devices of a triode or transistor type requiring continuous application of a control signal
155
using semiconductor devices only
156
with automatic control of output voltage or current, e.g. switching regulators
158
including plural semiconductor devices as final control devices for a single load
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
3
Conversion of dc power input into dc power output
02
without intermediate conversion into ac
04
by static converters
10
using discharge tubes with control electrode or semiconductor devices with control electrode
145
using devices of a triode or transistor type requiring continuous application of a control signal
155
using semiconductor devices only
156
with automatic control of output voltage or current, e.g. switching regulators
H ELECTRICITY
02
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
H
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
3
Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection
18
responsive to reversal of direct current
H ELECTRICITY
02
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
H
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
7
Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
20
for electronic equipment
H ELECTRICITY
02
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
J
CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
3
Circuit arrangements for ac mains or ac distribution networks
38
Arrangements for parallelly feeding a single network by two or more generators, converters, or transformers
Applicants:
SMA SOLAR TECHNOLOGY AG [DE/DE]; Sonnenallee 1 34266 Niestetal, DE
Inventors:
HUANG, Guojiang; CN
Priority Data:
201710798740.807.09.2017CN
Title (EN) FLOATING VOLTAGE PROCESSING CIRCUIT FOR MULTIPATH MPPT PHOTOVOLTAIC CONVERTER
(FR) CIRCUIT DE TRAITEMENT DE TENSION FLOTTANTE POUR CONVERTISSEUR PHOTOVOLTAÏQUE MPPT À CHEMINS MULTIPLES
Abstract:
(EN) The present application provides a floating voltage processing circuit for a multipath MPPT photovoltaic inverter. The circuit includes: a comparator unit including a comparator, a first divider resistor and a second divider resistor, herein the comparator includes a reference voltage end, an input end and an output end, the first divider resistor and the second divider resistor are connected in series between a positive pole and a negative pole of the photovoltaic inverter, and the input end is connected between the first divider resistor and the second divider resistor; and a load clamp control unit including a switch transistor, herein a base of the switch transistor is electrically connected with the output end of the comparator, a collector of the switch transistor is electrically connected with one end of a load resistor, the other end of the load resistor is electrically connected with the positive pole of the photovoltaic inverter, an emitter of the switch transistor is electrically connected with the negative pole of the photovoltaic inverter and the output end is used for controlling conduction or cutoff of the switch transistor. With embodiments in the present application, floating voltage generated across the sampling resistor can be effectively processed.
(FR) La présente invention concerne un circuit de traitement de tension flottante pour un onduleur photovoltaïque MPPT à chemins multiples. Le circuit comprend : une unité de comparateur comprenant un comparateur, une première résistance de diviseur et une seconde résistance de diviseur, le comparateur comprenant une extrémité de tension de référence, une extrémité d'entrée et une extrémité de sortie, la première résistance de diviseur et la seconde résistance de diviseur étant montées en série entre un pôle positif et un pôle négatif de l'onduleur photovoltaïque, et l'extrémité d'entrée étant connectée entre la première résistance de diviseur et la seconde résistance de diviseur ; et une unité de commande de pince de charge comprenant un transistor de commutation. Une base du transistor de commutation est connectée électriquement à l'extrémité de sortie du comparateur, un collecteur du transistor de commutation est connecté électriquement à une extrémité d'une résistance de charge, l'autre extrémité de la résistance de charge est connectée électriquement au pôle positif de l'onduleur photovoltaïque, un émetteur du transistor de commutation est connecté électriquement au pôle négatif de l'onduleur photovoltaïque et l'extrémité de sortie est utilisée pour commander la conduction ou la coupure du transistor de commutation. Selon des modes de réalisation de la présente invention, une tension flottante produite à travers la résistance d'échantillonnage peut être efficacement traitée.
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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, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, 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)