Propulsion System for DC Electrified Lines
![Propulsion System for DC Electrified Lines](/content/dam/toshiba/migration/infrasolution/www/infrastructure/en/railway/assets/main_dc.jpg)
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
Performance
IM drive VVVF system
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](/content/dam/toshiba/migration/infrasolution/www/infrastructure/en/railway/assets/rollingstock_dc_05_l.jpg)
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VVVF inverter for Series 8000 EMU
Japan
For Kita-Osaka Kyuko Railway Co., Ltd.
![VVVF inverter for Series 8000 EMU](/content/dam/toshiba/migration/infrasolution/www/infrastructure/en/railway/assets/rollingstock_dc_06_l.jpg)
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