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1. WO2020137567 - MOTOR CONTROL DEVICE

Publication Number WO/2020/137567
Publication Date 02.07.2020
International Application No. PCT/JP2019/048612
International Filing Date 12.12.2019
IPC
H02P 27/06 2006.01
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
B60L 9/18 2006.01
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
18fed from dc supply lines
CPC
B60L 9/18
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES
9Electric propulsion with power supply external to the vehicle
16using ac induction motors
18fed from dc supply lines
H02P 27/06
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
Y02T 10/72
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
10Road transport of goods or passengers
60Other road transportation technologies with climate change mitigation effect
72Electric energy management in electromobility
Applicants
  • 日立Astemo株式会社 HITACHI ASTEMO, LTD. [JP]/[JP]
Inventors
  • 黄 振雄 KO Shinyu
  • 明円 恒平 MYOEN Kohei
  • 岸本 永呉 KISHIMOTO Eigo
Agents
  • 戸田 裕二 TODA Yuji
Priority Data
2018-24778528.12.2018JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) MOTOR CONTROL DEVICE
(FR) DISPOSITIF DE COMMANDE DE MOTEUR
(JA) モータ制御装置
Abstract
(EN)
According to the present invention, a first torque calculation unit 114 calculates, on the basis of a DC current DC1, a torque TQ_DC that is currently generated by a motor 106. A second torque calculation unit 115 calculates, on the basis of a UVW phase current, a torque TQ_UVW that is currently generated by the motor 106. A limit torque calculation unit 116 calculates, on the basis of a limit current DC_LMT1, a limit torque TQ_LMT1 by using a pre-measured limit torque characteristic map. A limit torque correction unit 117 compares the first torque TQ_DC with the second torque TQ_UVW, and calculates a variation degree KP1 in torque. In addition, the limit torque correction unit 117 corrects the limit torque TQ_LMT1 by using the variation degree KP1 and calculates a limit torque TQ_LMT2. Accordingly, even when a requested torque reaches the limit torque, the output of the motor can be fully used, as a DC current does not exceed the limit current and approaches the limit current.
(FR)
Selon la présente invention, une première unité de calcul de couple (114) calcule, sur la base d'un courant continu DC1, un couple TQ_DC qui est actuellement généré par un moteur (106). Une deuxième unité de calcul de couple (115) calcule, sur la base d'un courant de phase UVW, un couple TQ_UVW qui est actuellement généré par le moteur (106). Une unité de calcul de couple limite (116) calcule, sur la base d'un courant limite DC_LMT1, un couple limite TQ_LMT1 en utilisant une carte caractéristique de couple limite pré-mesurée. Une unité de correction de couple limite (117) compare le premier couple TQ_DC au deuxième couple TQ_UVW, et calcule un degré de variation KP1 du couple. De plus, l'unité de correction de couple limite (117) corrige le couple limite TQ_LMT1 en utilisant le degré de variation KP1 et calcule un couple limite TQ_LMT2. Par conséquent, même lorsqu'un couple demandé atteint le couple limite, la sortie du moteur peut être pleinement utilisée, car un courant continu ne dépasse pas le courant limite et approche du courant limite.
(JA)
第一のトルク演算部114は、DC電流DC1に基づいて、モータ106が現在発生しているトルクTQ_DCを演算する。第二のトルク演算部115は、UVW相電流に基づいて、モータ106が現在発生しているトルクTQ_UVWを演算する。制限トルク算出部116は、制限電流DC_LMT1に基づいて、予め測定された制限トルク特性マップを用いて、制限トルクTQ_LMT1を算出する 。制限トルク補正部117は、第一のトルクTQ_DCと第二のトルクTQ_UVWとを比較し、トルクのバラツキ度合いKP1を算出する。そして、制限トルクTQ_LMT1に対してバラツキ度合いKP1を用いて補正し、制限トルクTQ_LMT2を演算する。これにより、要求トルクが制限トルクに到達しても、DC電流が制限電流を超えることなく、制限電流に近づくことによってモータの出力をフルに活用できる。
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