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1. (WO2018127960) POWER CONVERSION DEVICE
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Pub. No.: WO/2018/127960 International Application No.: PCT/JP2017/000176
Publication Date: 12.07.2018 International Filing Date: 05.01.2017
IPC:
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
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:
株式会社日立産機システム HITACHI INDUSTRIAL EQUIPMENT SYSTEMS CO., LTD. [JP/JP]; 東京都千代田区神田練塀町3番地 3, Kanda Neribei-cho, Chiyoda-ku, Tokyo 1010022, JP
Inventors:
小沼 雄作 ONUMA Yusaku; JP
Agent:
青稜特許業務法人 SEIRYO I.P.C.; 東京都中央区八丁堀二丁目24番2号 24-2, Hatchobori 2-chome, Chuo-ku, Tokyo 1040032, JP
Priority Data:
Title (EN) POWER CONVERSION DEVICE
(FR) DISPOSITIF DE CONVERSION D'ÉNERGIE
(JA) 電力変換装置
Abstract:
(EN) Provided is a power conversion device with which overvoltage can be prevented during acceleration and during constant-speed operation, and deceleration at a desired deceleration rate is possible during deceleration. The power conversion device is provided with a voltage conversion part for converting direct-current voltage to voltage based on a voltage command, a voltage detector for detecting the direct-current voltage, and a phase controller for controlling the phase of the voltage command. The power conversion device is characterized in that when the detected direct-current voltage exceeds a first threshold, the phase controller causes the phase of the voltage command to change.
(FR) La présente invention concerne un dispositif de conversion d'énergie avec lequel une surtension peut être empêchée pendant une accélération et pendant un fonctionnement à vitesse constante, et une décélération à un taux de décélération souhaité est possible pendant la décélération. Le dispositif de conversion d'énergie est pourvu d'une partie de conversion de tension pour convertir une tension continue en une tension sur la base d'une commande de tension, d'un détecteur de tension pour détecter la tension continue, et d'un contrôleur de phase pour commander la phase de la commande de tension. Le dispositif de conversion d'énergie est caractérisé en ce que lorsque la tension continue détectée dépasse un premier seuil, le contrôleur de phase provoque une modification de la phase de la commande de tension.
(JA) 加速運転時や一定速運転時においても過電圧を抑制でき、減速運転時において、所望の減速率で減速することができる電力変換装置を提供する。直流電圧を電圧指令に基づいた電圧に変換する電圧変換部と、前記直流電圧を検出する電圧検出器と、前記電圧指令の位相を制御する位相制御器と、を備えた電力変換装置であって、前記位相制御器では、前記検出した直流電圧が第1の閾値を上回った場合に、前記電圧指令の位相を変化させることを特徴とする。
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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, 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: Japanese (JA)
Filing Language: Japanese (JA)