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1. (WO2012124510) CHARGING METHOD FOR SNUBBER CAPACITOR
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2012/124510 International Application No.: PCT/JP2012/055363
Publication Date: 20.09.2012 International Filing Date: 02.03.2012
IPC:
H02M 7/12 (2006.01) ,H02M 5/45 (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
7
Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
02
Conversion of ac power input into dc power output without possibility of reversal
04
by static converters
12
using discharge tubes with control electrode or semiconductor devices with control electrode
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
5
Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
40
with intermediate conversion into dc
42
by static converters
44
using discharge tubes or semiconductor devices to convert the intermediate dc into ac
443
using devices of a thyratron or thyristor type requiring extinguishing means
45
using semiconductor devices only
Applicants:
小林 康永 KOBAYASHI, Yasunaga [JP/JP]; JP (UsOnly)
山本 耕才 YAMAMOTO, Kosai [JP/JP]; JP (UsOnly)
ナブテスコ株式会社 NABTESCO CORPORATION [JP/JP]; 東京都千代田区平河町二丁目7番9号 7-9, Hirakawa-cho 2-chome, Chiyoda-ku, Tokyo 1020093, JP (AllExceptUS)
Inventors:
小林 康永 KOBAYASHI, Yasunaga; JP
山本 耕才 YAMAMOTO, Kosai; JP
Agent:
木村 正俊 KIMURA, Masatoshi; 兵庫県神戸市中央区京町72番地 新クレセントビル7階 神戸欧和特許事務所 KOBE OWA PATENT FIRM, 7th Floor, Shin-crescent Building, 72 Kyomachi, Chuo-ku, Kobe-shi, Hyogo 6500034, JP
Priority Data:
2011-05896817.03.2011JP
Title (EN) CHARGING METHOD FOR SNUBBER CAPACITOR
(FR) PROCÉDÉ DE CHARGE POUR CONDENSATEUR DE PROTECTION
(JA) スナバコンデンサの充電方法
Abstract:
(EN) [Solution] A potential difference between both ends of a snubber capacitor (30) connected between intermediate direct current bus lines (4p, 4n) of an indirect matrix converter (1) is detected at the moment of input of a three-phase alternating current source. On the basis of these detection results, of the phases of the three-phase alternating current source, two phases with a potential difference that is almost the same as the potential difference of the snubber capacitor (30) are determined. Of these two phases, the phase with a rising voltage is connected via the indirect matrix converter (1) to a positive electrode of the snubber capacitor (30), and the phase with a falling voltage is connected via the indirect matrix converter (1) to a negative electrode of the snubber capacitor (30).
(FR) Selon la présente invention, une différence de potentiel entre les deux extrémités d'un condensateur de protection (30) connecté entre des lignes de bus en courant continu intermédiaires (4p, 4n) d'un convertisseur matriciel indirect (1) est détectée au moment de l'entrée d'une source de courant alternatif triphasé. En se basant sur les résultats de cette détection, on détermine, parmi les phases de la source de courant alternatif triphasé, deux phases dont la différence de potentiel est presque la même que la différence de potentiel du condensateur de protection (30). Parmi ces deux phases, la phase ayant une tension croissante est connectée via le convertisseur matriciel indirect (1) à une électrode positive du condensateur de protection (30), et la phase ayant une tension décroissante est connectée via le convertisseur matriciel indirect (1) à une électrode négative du condensateur de protection (30).
(JA) 【解決手段】 インダイレクトマトリクスコンバータ1の中間直流母線4p、4n間に接続されたスナバコンデンサ30の両端間電位差が、三相交流電源の投入時に検出される。この検出結果に基づいて三相交流電源の各相のうち、スナバコンデンサ30の電位差とほぼ同じ電位差になる二相を判定する。この二相のうち電圧が上昇する相を、スナバコンデンサ30の正極に、前記二相のうち電圧が降下する相を、前記スナバコンデンサの負極にインダイレクトマトリクスコンバータ1を介して接続する。
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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, 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, QA, RO, RS, RU, RW, 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, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, 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, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)