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1. (WO2010084239) ARRANGEMENT AND METHOD FOR MONITORING GALVANIC ISOLATION OF FUEL CELL DEVICE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2010/084239 International Application No.: PCT/FI2009/051028
Publication Date: 29.07.2010 International Filing Date: 22.12.2009
Chapter 2 Demand Filed: 22.11.2010
IPC:
H01M 8/04 (2006.01) ,G01R 27/02 (2006.01)
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8
Fuel cells; Manufacture thereof
04
Auxiliary arrangements or processes, e.g. for control of pressure, for circulation of fluids
G PHYSICS
01
MEASURING; TESTING
R
MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
27
Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
02
Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
Applicants:
WÄRTSILÄ FINLAND OY [FI/FI]; Tarhaajantie 2 FI-65380 Vaasa, FI (AllExceptUS)
ÅSTRÖM, Kim [FI/FI]; FI (UsOnly)
Inventors:
ÅSTRÖM, Kim; FI
Agent:
LEITZINGER OY; Tammasaarenkatu 1 FI-00180 Helsinki, FI
Priority Data:
2009505323.01.2009FI
Title (EN) ARRANGEMENT AND METHOD FOR MONITORING GALVANIC ISOLATION OF FUEL CELL DEVICE
(FR) DISPOSITIF ET PROCÉDÉ DE CONTRÔLE DE L'ISOLATION GALVANIQUE D'UN DISPOSITIF DE PILE À COMBUSTIBLE
Abstract:
(EN) The object of the invention is a method for monitoring galvanic isolation (120) of a fuel cell device. In the method is arranged at least one stack (103) of fuel cells and at least one load circuit (111) for fuel cells to an electrically freely floating configuration towards at least one structure (122) near fuel cells, is performed a controlled switching via at least two switching points (126, 128) to at least one measurement element (124) comprising known impedance in connection to said at least one structure (122), is performed measurements from the measurement element to form voltage information, is processed said formed voltage information and at least voltage information between switching points (126, 128) to check floatages of fuel cells in relation to said at least one structure.
(FR) L'invention concerne un procédé de contrôle de l'isolation galvanique (120) d'un dispositif de pile à combustible. Selon le procédé, au moins un empilement (103) de piles à combustible et au moins un circuit de charge (11) pour piles à combustible sont prévus, selon une configuration à flottement électrique libre, en direction d'au moins une structure (122) à proximité des piles à combustible. On effectue une commutation contrôlée, par le biais d'au moins deux points de commutation (126, 128), vers au moins un élément de mesure (124) présentant une impédance connue en rapport avec ladite ou lesdites structures (122). On effectue des mesures depuis l'élément de mesure afin de générer des informations de tension, on traite lesdites informations de tension générées ainsi qu'au moins des informations de tension entre les points de commutation (126, 128) afin de vérifier les flottements des piles à combustible par rapport à ladite ou auxdites structures.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, 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, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, 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, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (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, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: Finnish (FI)
Also published as:
EP2389702JP2012516012US20110298469CN102292861KR1020110119729IN3755/DELNP/2011