SEMINARIO

MATERIAL RODANTE

Copyright shall be owned by Mitsubishi Electric Corporation

Modern Traction System

Mr. Yasuhiro SekineMitsubishi Electric Corporation

Traction Motor & Gear Unit

Train Information Management System

Traction Inverter

Auxiliary Power Supply

Brake Equipment

Air Conditioner

Product Overview of Mitsubishi Electric

Traction Transformer

ATP, ATO System

Master Controller

Presentation Topics

• Design Concept of Traction System• History of Traction System with Major Breakthrough• Key Technology of Traction System• Features of Modern Traction Inverter System• Latest Traction Inverter System• On Board Data System

Design Concepts of Traction System• Safety and Reliability

To ensure safe and on-time train operation

• Life Cycle Cost MinimizationInitial cost and maintenance cost reductionPreventive and corrective maintenance reduction

• High PerformanceMotoring and regenerative braking performance improvementQuick response to commandsStable control against disturbance

• Environmental CompatibilityEnergy saving Low noise emission (Electro Magnetic and Audible)Compact size and light weight

History of Traction Systemwith Major Breakthrough

DC Motor + Rheostatic Control

Series-wound DC Motor + Chopper Control

Separate-wound DC Motor + 4Q Chopper Control

AC Induction Motor + VVVF Inverter Control

Thyristor / Op-amp and TTL

GTO Thyristor / Micro-processor

IGBT / DSP and FPGA

Key Technology of Traction SystemYEAR

DESCRIPTION

PROPULSIONSYSTEM

POWERSEMICONDUCTOR

COOLING METHOD

1975 1980 1985 1990 1995 2000

Heat Pipe Type

Non-Immersed Type

Forced Air Cooling

Liquid Evaporation Cooling

Immersed Type

Rheostatic and

Thyristor Chopper

Dry Fin

VVVF Inverter

IGBT(Insulated Gate Bipolar Transistor)

GTO(Gate Turn Off Thyristor)

Thyristor

Reverse ConductiveThyristor

GTO Chopper

Features of Modern Traction Inverter System

• IGBT Power Module (Insulated Gate Bipolar Transistor)

• Power Unit Design• Control Function and Technology• VVVF Inverter

IGBT Power Module• Built-in Gate Drive Circuit• Over Current and

Short Circuit Protection • Fault Signal Output• IGBT Rating Selection

for Traction Use

Line Voltage IGBT Rating 750 V 1.7kV – 1.8kA1500 V 3.3kV – 1.2kA3000V 6.5kV – 0.6kA

Rated Voltage 3.3kVRated Current 1.2kA

Power Unit Design

• Integrated design of IGBT modules, filter capacitor and gate drive circuit into a power unit

• Laminated bus bars Snubberless by reducing circuit inductance

• Dry fin cooling• Dry type capacitor• Optic fiber gate drive

connection

• High reliability

• Low maintenancecost

• Compact size andlight weight

• Low noise emission

IGBTLaminatedBusbar Filter CapacitorHeatsink

Frame

Power Unit

Power Unit Configuration

Control Function and Technology

• Torque Control-Voltage fluctuation-Load compensation-Multi motors in parallel

• Speed Control• Slip/Slide Control• Diagnostic Function• Monitoring Function

Gate Control Unit for Traction Inverterapplying 32-bit DSP and FPGA

Speed Sensorless Torque Control

Control logic

VVVF

Inverter

Traction motorMotor Current

DC Supply

PWM

Voltage

VectorController

Vd* Vq*Flux Reference

Torque Reference

3/dq

idiq

AdaptiveFlux

Observer Vd*Vq*

IM

EstimatedRotor

Frequency

IM

Slip / Slide ControlLow Adhesion Condition

Rain / Snow fallLeafOil etc.

on surface of Rail

Wheel Slip / SlideOccurs

Minimization ofDip of Traction /Braking EffortRe-adhesion

Control

Dip of Traction / Braking Effort

Re-adhesion control

T

Deviation quantity operation Speed signal

Speed signal Speed

deviation

Acceleration deviation

Acceleration / Speed deviation

Torque reference operation

Torque demand

Torque reference

Re-adhesion Control data base table

+

-

•Life Cycle Cost Minimization-No adjustment requirement for mechanical contactor and cylinder-Long maintenance interval•High Performance-Electro-magnetic blow-out, direct instantaneous overcurrent release natural air cooling and electrical operating system

•High Performance-32bit CPU control unit•Life Cycle Cost Minimization- Diagnosis, Monitoring, Fault Recording

IGBT Unit Propulsion Control Unit and PTE

Feature of VVVF Inverter

HSCB and Line Contactor

•High Reliability-Quick detection and control for disturbance

IGBT Semi-conductor

•Environment Compatibility-Low noise emission by Snubber less power circuit-Compact size and light weight

•Life Cycle Cost Minimization- No maintenance requirement for dry fin

•Environment Compatibility-Shielded box and structure

Propulsion Inverter Box

Propulsion Inverter Box

Latest Traction Inverter Drives

Attiko Metro EMU in GreeceDelivery : 2003 ~ 2004Quantity : 84 Cars (AC/DC.), 42 Cars (DC)Line Voltage : AC 25kV, DC 750VMax. Speed : 120 km/h (AC Section)

80 km/h (DC Section)Traction Motor : 140kW, AC VVVF Inverter : IGBT Controlled (C/I ; AC/DC.)Train Configuration : DM-T-M-M-T-DM

MTR.CI

AC Pantograph

T/MCIT/M

DC Third RailDC Third Rail

FLFL

DMRC EMU in IndiaDelivery : 2002 ~ 2006Quantity : 240 Cars Line Voltage : AC 25kVMax. Speed : 90 km/hTraction Motor : 220kW, AC VVVF Inverter : IGBT Controlled C/IAuxiliary Power Supply : SIV AC415V 50Hz,

DC110VTrain Configuration : DT-M-M-DT

MTR.

CI

AC Pantograph

T/M

LIRR M7 EMU in New YorkDelivery : 2001 ~ Quantity : 484 Cars (Jan 2005)

Planned 1,148 carsLine Voltage : DC 650VMax. Speed : 100mphTraction Motor : 200kW, AC VVVF Inverter : IGBT Controlled Typical Train : 3 MPs (6 Cars)

T/M

INV.

INV.HSCB

DC Third Rail

HSCB

HSCB

METRO DE BARCELONA LINEA 5(Under Construction)

Delivery : 2005-2006Quantity : 195Cars Line Voltage : DC 1,200VMax. Speed : 80 km/hTraction Motor : 125kW, AC VVVF Inverter : IGBT Controlled Train Configuration : DM-M-T-M--DM

DC Pantograph

IM

INVHB

VVVF Inverter

On Board Data System

PID

IC card Plotter

Depot equipment

VVVF

APS

OTHERS

displayCentralunit display

CentralunitLocal unit

Powersupply

Powersupply

Train Information System

ATO/ATP

PA

MCPID

VVVF

APS

OTHERS

PID

VVVF

APS

OTHERS

ATO/ATP

PA

MC

Note:MC: Media ControllerPA: Public Adress

for East Japan Railway for East Japan Railway

Train Vision Display

<Screen B>• Next Station• Station Maps• Route Map• Train delayinformation

<Screen B>• Next Station• Station Maps• Route Map• Train delayinformation

<Screen A>• Advertising clips• News• Stock information• Weather forecast

<Screen A>• Advertising clips• News• Stock information• Weather forecast

End of Presentation

Thank you