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1. US20210021224 - POWER CONVERSION DEVICE, MOTOR DRIVING SYSTEM, AND CONTROL METHOD

官庁 アメリカ合衆国
出願番号 16975880
出願日 15.02.2019
公開番号 20210021224
公開日 21.01.2021
公報種別 A1
IPC
H02P 23/26
H電気
02電力の発電,変換,配電
P電動機,発電機,回転変換機の制御または調整;変圧器,リアクトルまたはチョークコイルの制御
23ベクトル制御以外の制御方法に特徴を有する交流電動機の制御装置または制御方法
26力率制御[2016.01]
H02P 27/08
H電気
02電力の発電,変換,配電
P電動機,発電機,回転変換機の制御または調整;変圧器,リアクトルまたはチョークコイルの制御
27供給電圧の種類に特徴を有する交流電動機の制御装置または制御方法
04可変周波数の供給電圧,例.インバータまたはコンバータ供給電圧,を使用するもの
06直流-交流コンバータまたはインバータを用いるもの
08パルス幅変調を行うもの
CPC
H02P 2201/15
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
2201Indexing scheme relating to controlling arrangements characterised by the converter used
15Power factor Correction [PFC] circuit generating the DC link voltage for motor driving inverter
H02P 23/26
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
23Arrangements or methods for the control of AC motors characterised by a control method other than vector control
26Power factor control [PFC]
H02P 27/08
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
27Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
04using variable-frequency supply voltage, e.g. inverter or converter supply voltage
06using dc to ac converters or inverters
08with pulse width modulation
出願人 TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
発明者 Naoto NIIMURA
Teruo YOSHINO
発明の名称
(EN) POWER CONVERSION DEVICE, MOTOR DRIVING SYSTEM, AND CONTROL METHOD
要約
(EN)

In a power converter, a first single-phase AC conversion unit, which is connected to a first line of a first phase and a second line of a second phase of a first three-phase AC, a second single-phase AC conversion unit, which is connected to the second line of the second phase and a third line of a third phase of the first three-phase AC, and a third single-phase AC conversion unit, which is connected to the third line of the third phase and the first line of the first phase of the first three-phase AC, form a delta-connected load for an AC power supply system. At least the first single-phase AC conversion unit, the second single-phase AC conversion unit, and the third single-phase AC conversion unit form a first set in which respective output terminals are connected in series to one another, and the first set, and a second set and a third set, which are different from the first set, form each phase of a star connected power supply. A reactive power control unit controls a reactive power of a converter of each single-phase AC conversion unit based on a reactive power command value generated based on an acquired value related to an active power.