Keywords

Y2

deviceZ4

electricity

traffic system

E29

electrical machinery

Toshiba Infrastructure Systems & Solutions Corporation

Permanent Magnet Synchronous Motor for Rolling Stock (PMSM) and4-in-1 Variable-Voltage Variable-Frequency (VVVF) Traction Inverter for driving PMSM
Features
The size of the traction inverter has been reduced by integrating the circuits, which drive four permanent
magnet synchronous motors (PMSM), into a single power unit, called 4-in-1. (Reduction by 60% and 50%
in volume and weight, respectively, compared with previous Toshiba models).
High efficiency has been achieved by applying permanent magnet synchronous motors, instead of conventional induction motors (IM), as the traction motors for rolling stock.
(The efficiency of IM: 90% - 92% → efficiency of PMSM: 97%).
In addition, both reduction in maintenance and lower emission or noise have been achieved by the totallyenclosed structure (in which outside air is not taken inside for cooling) of the PMSM.

Permanent Magnet Synchronous Motor (PMSM)
for Rolling Stock

8000-series EMU of Hankyu Corporation

4-in-1 VVVF Traction Inverter for driving PMSM

Energy-Saving Effects and Remarks
Power consumption reduced by more than 50% in comparison with induction motor.
(In case of 8000-series EMU of Hankyu Corporation. The actual measurement data of the 8000-series
EMU of Hankyu is shown below. The figure includes power obtained from regenerative braking. )Reduction of emitted noise by 2 - 6dBA thanks to the totally enclosed structure.
External air is not drawn into the motor, eliminating the problem of contamination.
In addition, the construction of the traction motor, which allows replacement of bearings without disassemblyof the motor, has reduced maintenance work. (The structure is shown below.)

Reduction ofapprox. 10%
Power consumption (kWh/(car-km)

C-12

S7

Improvement ofapprox. 85%

Reduction ofapprox. 50%
The rotor stays in themotor.
Only the housing withbearing needs to be

Dismounted housing and bearing

Powering

Regeneration

Consumption

Energy consumption measurement results
Bearing replacement
Greasing and bearing replacement can be carried out thusDelivery Record / Schedule
Domestic

Overseas

Contact:

C-12

Year

Customer (Car Services)

2006

East Japan Railway Company (E331-series EMU)

Direct Drive Motor (DDM)-version PMSMPropulsion System for Driving PMSM

2009

Tokyo Metro Co., Ltd .
Marunouchi Line 02 series in commercial service since Feb. 2010
Chiyoda Line 16000 series in commercial service since Nov. 2010
Ginza Line 1000 series in commercial service since Apr. 2012
Tozai Line 05 series in commercial service since Mar. 2013
Hibiya Line 13000 series in commercial service since Dec. 2016 (OnlyPMSM adopted)
Marunouchi Line 2000 series in commercial service since Feb. 2019

Mass-produced 2-in-1 Traction Inverter
Propulsion System for Driving PMSM

2013

Hankyu Corporation
Kobe Line/Takarazuka Line 1000 series in commercial service sinceNov. 2013

Mass-produced 4-in-1 Traction Inverter
Propulsion System for Driving PMSM

2015

Kyushu Railway Company
Chikuhi Line 305 series in commercial service since Feb. 2015

Mass-produced 4-in-1 Traction Inverter
Propulsion System for Driving PMSM

2015

Kita-Osaka Kyuko Railway Co., Ltd.
9000 series in commercial service on the Midosuji Line and Kita-Osaka
Kyuko Line since Apr. 2014

Mass-produced 2-in-1 Traction Inverter
Propulsion System for Driving PMSM

2009

Japan Freight Railway Company
Prototype HD300 hybrid locomotive in commercial operation since May
2011

PMSM drive main converter*Denotes year it was qualified

2011

Japan Freight Railway Company
Mass-produced HD300 hybrid locomotive in commercial operation tosequentially start after qualification

Mass-produced PMSM drive mainconverter*Denotes year it was qualified

2015

Tobu Railway Co., Ltd.
Tobu Main Line 500 series in commercial service since Apr. 2017

Mass-produced 4-in-1 Traction Inverter
Propulsion System for Driving PMSM

2015

Tobu Railway Co., Ltd.
Tobu Skytree Line 70000 series in commercial service since July 2017
(Only PMSM adopted)

Mass-produced System

2013

Keio Corporation (Advance adoption)
Keio Line 8000 series (upgraded cars) in commercial service sinceMar. 2013

4-in-1 Traction Inverter Propulsion
System for Driving PMSM

2015

Keio Corporation
Keio Line 8000 series (upgraded cars) in commercial service sinceMar. 2016 or after

Mass-produced 4-in-1 Traction Inverter
Propulsion System for Driving PMSM

2014

Seibu Railway Co., Ltd. (Advance adoption)
Ikebukuro Line 6000 series in commercial service since Mar. 2015

4-in-1 Traction Inverter Propulsion
System for Driving PMSM

2015

Seibu Railway Co., Ltd.
Ikebukuro Line 40000 series in commercial service since Mar. 2017

Mass-produced 4-in-1 Traction Inverter
Propulsion System for Driving PMSM

2013

Hanshin Electric Railway Co., Ltd.
Hanshin Main Line 5700 series (new cars) in commercial service sinceAug. 2015

Mass-produced 4-in-1 Traction Inverter
Propulsion System for Driving PMSM

2011

Hankyu Corporation
Kobe Line/Takarazuka Line 7000 series (upgraded cars) in commercial
service since May 2016

Mass-produced 4-in-1 Traction Inverter
Propulsion System for Driving PMSM

2012

Hankyu Corporation (Test implementation)
Kobe Line 8000 series (test implementation) in commercial service
since Aug. 2012

4-in-1 Traction Inverter Propulsion
System for Driving PMSM

2015

Hankyu Corporation
Kobe Line/Takarazuka Line 8000 series (upgraded cars) in commercialservice since July 2016

Mass-produced 4-in-1 Traction Inverter
Propulsion System for Driving PMSM

YearCustomer (Car Services)

Production

Production

2013

Singapore SMRT
East-west line/North-south line C151 series (upgraded cars) incommercial service since end of July 2013

2-in-1 Traction Inverter Propulsion
System for Driving PMSM

2018

Busan Transport Corporation (Mass adoption)
Busan Transport Corporation (South Korea) First subway line (newcars) in commercial service since July 2018

Mass-produced PMSM and main
components for inverter

2019

Seoul Metro (Mass adoption)
Seoul Metro Line 5 and Line 7 (new cars) in commercial service sinceApril 2022

Mass-produced PMSM and main
components for inverter

Toshiba Infrastructure Systems & Solutions Corporation
Railway Systems Divisionhttps://www.toshiba.co.jp/infrastructure/en/railway/index.htm