Processing

Please wait...

Settings

Settings

Goto Application

1. WO2014103055 - POWER CONVERSION DEVICE AND POWER CONVERSION METHOD

Publication Number WO/2014/103055
Publication Date 03.07.2014
International Application No. PCT/JP2012/084187
International Filing Date 28.12.2012
IPC
H02M 7/12 2006.1
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
MAPPARATUS 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
7Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
02Conversion of ac power input into dc power output without possibility of reversal
04by static converters
12using discharge tubes with control electrode or semiconductor devices with control electrode
B60L 9/24 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
9Electric propulsion with power supply external to the vehicle
16using ac induction motors
24fed from ac supply lines
CPC
B60L 2200/26
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES
2200Type of vehicles
26Rail vehicles
B60L 2210/30
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES
2210Converter types
30AC to DC converters
B60L 2210/40
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES
2210Converter types
40DC to AC converters
B60L 9/28
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES
9Electric propulsion with power supply external to the vehicle
16using ac induction motors
24fed from ac supply lines
28polyphase motors
H02M 1/12
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
MAPPARATUS 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
1Details of apparatus for conversion
12Arrangements for reducing harmonics from ac input or output
H02M 1/4208
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
MAPPARATUS 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
1Details of apparatus for conversion
42Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
4208Arrangements for improving power factor of AC input
Applicants
  • 三菱電機株式会社 MITSUBISHI ELECTRIC CORPORATION [JP]/[JP] (AllExceptUS)
  • 永塚 吉生 NAGATSUKA Yoshio (US)
Inventors
  • 永塚 吉生 NAGATSUKA Yoshio
Agents
  • 木村 満 KIMURA Mitsuru
Priority Data
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) POWER CONVERSION DEVICE AND POWER CONVERSION METHOD
(FR) DISPOSITIF DE CONVERSION DE PUISSANCE ET PROCÉDÉ DE CONVERSION DE PUISSANCE
(JA) 電力変換装置および電力変換方法
Abstract
(EN) A transformer (2) steps down and feeds an inputted AC power to a converter (3). A primary voltage of the transformer (2) detected by a voltage detector (8) is sent to a converter control unit (4) and a frequency detection unit (6) via a BPF (5). The converter control unit (4) controls a converter (3) on the basis of the primary voltage so that the power factor becomes a predetermined value or greater, and the converter (3) converts the AC power to DC power. The frequency detector (6) detects the frequency of the primary voltage on the basis of an interval between time points when the primary voltage which has passed through the BPF (5) exceeds a threshold value. A filter regulation unit (7) calculates filter characteristics using the detected frequency as the center frequency of the BPF (5), and regulates the BPF (5) on the basis of the filter characteristics.
(FR) Cette invention concerne un transformateur (2) qui abaisse et transmet à un convertisseur (3) un courant alternatif d'entrée. Une tension primaire du transformateur (2) détectée par un détecteur de tension (8) est acheminée vers une unité de commande de convertisseur (4) et une unité de détection de fréquence (6) par l'intermédiaire d'un filtre passe-bande (5). L'unité de commande de convertisseur (4) commande un convertisseur (3) sur la base de la tension primaire de telle façon que le facteur de puissance atteint ou dépasse une valeur prédéterminée, et le convertisseur (3) convertit le courant alternatif en courant continu. Le détecteur de fréquence (6) détecte la fréquence de la tension primaire sur la base d'un intervalle entre moments dans le temps auxquels la tension primaire qui a traversé le filtre passe-bande (5) dépasse une valeur seuil. Une unité de régulation de filtre (7) calcule des caractéristiques de filtre en utilisant la fréquence détectée comme fréquence centrale du filtre passe-bande (5), et elle régule le filtre passe-bande (5) sur la base des caractéristiques de filtre.
(JA)  変圧器(2)は、入力された交流電力を降圧してコンバータ(3)に供給する。電圧検出器(8)で検出された変圧器(2)の1次電圧はBPF(5)を介してコンバータ制御部(4)および周波数検出部(6)に送られる。コンバータ制御部(4)は、1次電圧に基づいて、力率が所定の値以上となるようにコンバータ(3)を制御し、コンバータ(3)は交流電力を直流電力に変換する。周波数検出部(6)は、BPF(5)を介した1次電圧が閾値を超える時点間の間隔に基づき、1次電圧の周波数を検出する。フィルタ調節部(7)は、検出された周波数をBPF(5)の中心周波数としてフィルタ特性を算出し、フィルタ特性に基づきBPF(5)を調節する。
Latest bibliographic data on file with the International Bureau