Propulsion System for DC Electrified Lines

Propulsion System for DC Electrified Lines

We supply propulsion systems that cut power consumption and, are quiet and ecologically friendly.

These products are related to rolling stock drive systems that travel in a DC feed section. We offer high-efficiency systems including Permanent Magnet Synchronous Motors (PMSM)*1 and totally enclosed traction motors, and also offer a series of VVVF*2 inverters to drive these systems.

  • * 1 PMSM : Permanent Magnet Synchronous Motor
  • * 2 VVVF : Variable Voltage Variable Frequency

Features

Traction motors are vector controlled for highly responsive and accurate torque control. They also use electrical braking control down to a speed of 0 km/h, and the traction motor uses sensor-less control which eliminates the need for a speed sensor.

Benefits & Value

  • Highly efficient PMSM is used in the traction motor reducing energy consumption.
  • Installing a totally enclosed traction motor prevents internal contamination, and realizes cleaning not being needed for a long period of time.
  • The traction motor is constructed so that the bearings can be easily replaced without removing the rotor.
  • Using low-loss devices can be expected to provide a compact and lightweight VVVF inverter.
  • The use of a 4-in-1 unit can be expected to provide a compact and lightweight VVVF inverter for PMSM

System Configuration

VVVF inverter system for IM drive

System Configuration

VVVF inverter system for PMSM drive

VVVF inverter system for PMSM drive

Performance

IM drive VVVF system

VVVF inverter for Series 287 EMU

Japan
For West Japan Railway Company

VVVF inverter for Series 287 EMU

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Dual mode type IGBT VVVF/CVCF system for Series 313 suburban train

Japan
For Central Japan Railway Company

Dual mode type IGBT VVVF/CVCF system for Series 313 suburban train

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VVVF inverter for Series 8000 EMU

Japan
For Kita-Osaka Kyuko Railway Co., Ltd.

VVVF inverter for Series 8000 EMU

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PMSM drive VVVF system

VVVF inverter for Series 02 EMU

Japan
For Tokyo Metro Co., Ltd.

VVVF inverter for Series 02 EMU

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VVVF inverter for Series 16000 EMU

Japan
For Tokyo Metro Co., Ltd

VVVF inverter for Series 16000 EMU

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PMSM for Series 16000 EMU

Japan
For Tokyo Metro Co., Ltd.

PMSM for Series 16000 EMU

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VVVF inverter for Series 1000 EMU

Japan
For Tokyo Metro Co., Ltd.

VVVF inverter for Series 1000 EMU

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