電気車の制御装置

Japanese Patent JP6533132

B2

PROBLEM TO BE SOLVED: To provide a control device of an electric motor vehicle that has a function for preventing overheat burnout of an induction motor by detecting abnormality when a phase sequence of the induction motor driven by an inverter device of the electric motor vehicle is an erroneous interconnection, and by cutting off power supply to the induction motor, and for notifying a crew member of the electric motor vehicle of the erroneous interconnection of the induction motor.SOLUTION: A control device of an electric motor vehicle comprising a power converter for driving multiple induction motors detects erroneous interconnection of a phase sequence of at least one among the multiple induction motors on the basis of a fact that: a notch command from a control platform of the electric motor vehicle is a prescribed value or lower, and speed of the electric motor vehicle is equal to or higher than a first prescribed value and equal to or lower than a second prescribed value; and a torque current ACR operation amount, which is obtained from a difference between a torque current pattern acquired from the speed and the notch command and a torque current detection value acquired from a detection value of the electric motor current outputted from the power converter, is equal to or higher than a prescribed threshold value.SELECTED DRAWING: Figure 1

Yasuo Yamaguchi
Tokushima Takumi
Hiroshi Ogawara
Kei Sakagami
Hirokazu Kato
Takune Shimoyama

JP2015180678A

June 19, 2019

September 14, 2015

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株式会社日立製作所
東海旅客鉄道株式会社

B60L3/00; B60L3/04; H02P5/46

JP2015119600A
JP2008086085A
JP2015126621A
JP2014023282A

Patent Business Corporation Daiichi International Patent Office

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