www.nidec-asi.com

SilcovertSilcovert GNGN™™

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The Silcovert GN is a NPC Voltage Source Inverter (VSI) with IGCT (Integrated GateCommutated Thyristor) and field oriented technology for speed and torque control of large

induction and synchronous motors.

Stand alone configurations for power ranges up to 24 MVA and – whenever high overloadand dynamic response capabilities are essential.

Silcovert GN™

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With either Diode Front End (DFE: 12 or 24 pulse) or Active Front End (AFE) configurations,this drive provides ultra high efficiency, very high power factor (close to 1), minimum torque

ripple and low input and output harmonic content.

A fully digital control platform provides an user-friendly interface for flexibilityand accuracy in all applications.

Silcovert GN™

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50/60 Hz ± 3%Input Frequency:

0.98 (AFE with line chokes)

≥ 0.98 (50 Hz, rated load)

9000..24,000 kVA (higher power on

request)

DFE: (12p) 2 x 1800V ± 10%

DFE: (24p) 4 x 1800V ± 10%

AFE: 3000 V ± 10%

Fundamental Power Factor:

Efficiency:

Output Power:

Main Supply Voltage (3 phase):

PWMVoltage Modulation:

10..65Hz normal

10..100Hz extended

Output Frequency:

Output Voltage: DFE: 0..3000V

AFE: 0..3300V

Silcovert GN™

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IP 31 (std.) IP41/54 on requestDegree of Protection

RAL 7035 (std.)Paint Colour

Input transformer: oil or dry type external (no distance limitation)

The dimensions listed above refer to the base configuration. Depending on theselected option, size dependent extra length must be added to “L”:

- input manual switch: 1000 to 1200 mm

-output manual earth-switch : 600 to 1000 mm

-Exciter unit (synchronous motor): 1000mm

9500 x 2312 x 1400 mm20k0/24k0 DFE

8000 x 2312 x 1400 mm18k0 DFE

6000 x 2312 x 1400 mm9k0/10k0/12k0 DFE

13000 x 2312 x 1400 mm18k0/20k0/24k0 AFE

6200 x 2312 x 1400 mm9k0/10k0/12k0 AFE

Std. frameInverter size~

=

=

~

front end inverter

cooling system

controlunit

input

transfo

rmer

induction

moto

r

2310mm

INVERTER

UNIT

1000mm

1400mm

INVERTER

UNIT

AFE

UNIT

INPUT

UNIT

COOLING

UNIT

OUTPUT

UNIT

CONTROL

UNIT

AUXILIARY

UNIT

Silcovert GN™

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AFEActive FrontEnd

9-10-12k0

DFE 24P

Diode FrontEnd

DFE 12P

Diode FrontEnd

=

~

=

~

~

=

MM

AFE

Active Front End

18-20-24k0

Silcovert GN™Front end Configurations

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0.005 0.01 0.015 0.02

…the NPCconverter hasanother outputvoltage level ateach pole whichimproves waveformquality (5 levels lineto line )

Compared to theusual 2 levelPWM circuit (3levels line toline)…

Line to Line VoltageOutput Line-to-line Voltage

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HMISCREEN

& KEYPAD

CONTROLPANEL

COOLINGSYSTEM

INVERTER

Silcovert GN™AFE Inverter Water (9000..360000 kVa)

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POWERMODULE:REAR VIEW

POWERMODULE:TOP VIEW

Silcovert GN Module

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Water-to-WaterHeat Exchanger

Filter DeionizationSystem

MeasuringSystems

Temperature

Flow

Pressure

Conductivity

Water Cooling Unit Details

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FAST REPLACING TIME - single assembly- complete phase (< hour)

FRONTSIDE(DOOR)

REAR

POWER SECTION GENERAL OVERVIEW

Hydraulic pipesIGCT Module

Hydraulic Connections(module to cubicle)

PhaseModule

IGCT Module Replacement

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Remote I/O

I/O Hard-Wired Link

Control Rack

To/from field

Front Panel

To/fromGateDrivers

I

PR

RACK

VMEbus

EXCITER

HMIor

Operator Interface

For plant setup andparameter adjustment

Ethernet

Ethernet link

Ethernet link

To/from field

Local I/O

Control Architeture

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• Fully digital control based on ARTICS platform

• VxWorks real time Operating System

• Inexpensive maintenance and upgrade thanks tomarket HW solution

• display for maintenance and monitoring

• Profibus interface to link the drive to the higher-level automation system

• Local & remote interface

• Interface for rotor position and speed detectors

• Analogue I/O and digital I/O signal conditioninginterface

• Vector control for SYNCHRONOUS andINDUCTION MOTORS

Control Features

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CPU Board Performs:

– Fast Control Loops

– Pulses ModulatorEPM3256A

(MAX 3000A ProgrammableLogic Device Family,

ALTERA)

ACEX1K50

(ACEX 1K ProgrammableLogic Device Family,

ALTERA)

ACEX1K100

(ACEX 1K ProgrammableLogic Device Family,

ALTERA)

monitorscommandsdigitalsignals

I/O

analog

signalsI/O

FILPRO C-GN

VME - bus

CPUboard

field

AMS rack

Filpro C/GN performs:

– Pulses Schedulator

– Field SignalConditioning

– Fast Protection

– Commands to Device

– Monitors from Devices

– Analog I/O

– Digital I/O

Hardware Structure

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Log View

VariablesList

VerticalBar

StatusBar

Menu BarTool Bar

HMI: Control & OutputSVGN HMI (ArtTD) Main Page

Silcovert GN

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Open the synoptic page

Reset the alarms

Select the CPU for alarm visualisation

Changethe CPUselection

The 10 most importantmeasures of the drive

(configurable)

16x16 LED matrixsignal.Each LED isassociated with analarm. If the mousepointer is moved onthe LED, thecorrespondentalarm description isindicated.

HMI: Control & OutputSVGN HMI (ArtTD) Instrument Window

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Variablesdescription

The High Quality Trend (HQT) function allowsthe time visualisation of up to 8 variables

displayed by ArtTD.

Sampling time

Stored sample count

Enable the trigger

Trigger selectedvariable

Trigger transactionvalue

Trigger slope

Trigger delay time

Trigger delay On/Off

HMI: Control & OutputSVGN HMI (ArtTD) High-Quality Trend Window

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Export CSV file

Choose the filetype to open

ArtTD Viewer allows thevisualisation of graphics saved bothwith the HQT and the AutoDiag.These traces can be save as CSVfiles and imported into softwarepackages like Excel.

Variable names

Opened file name

Cursor coordinates and CursorMeasurements selection

HMI: Control & OutputSVGN HMI (ArtTD) Viewer

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VSDS package that operates a motor as a starter/helper/generator coupled to GT with fullpower capability in regenerative mode.

From conceptual design of the machine and drives to completesystem validation (motor & inverter) and start-up in nine months.Our Solution

MultiThread Configuration (4)

Testing Facility: Nuovo PignoneCustomer Requirements

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20-giu-07

Mod.

Hybrid

Speed

Load

(MW)

33KV

Current

THD%

33KV

Voltage

THD%

Torque

[kNm]

Ripple%

Mech

3000 6,5 7,5 3,0 19 7,5

3000 26 2,6 3,0 82 4,5

3000 29 2,5 3,0 92 2,5

3000 32 2,5 3,0 102 2,0

3000 34 2,5 3,0 108 2,0

Motor in helper

mode Motor Torque

Torque Ripple: 2%

Grid phase current

15-giu-07

Mod.

Asyn.

Speed

Load

(MW)

Grid

Current

THD%

Grid

Voltage

THD%

Grid

Current

THD%

Grid

Voltage

THD%

1500 5 26,0 13,0 9,0 3,0

2820 21 7,0 13,0 3,0 3,0

3000 21 7,0 13,0 3,0 3,0

3300 20 6,5 13,0 3,0 3,0

3300 27 5,5 13,0 2,5 3,0

3000 27 5,5 13,0 2,5 3,0

AFE interleaving onAFE interleaving off

Grid side Current THD = 2,5%

Testing Facility: Nuovo PignoneSystem Performance

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Oil & Gas – High Power, High Speed Centrifugal Compressors

Marine – Propulsion (including dynamic positioning), off-shore workboats &equipment (icebreakers, pipelayers, etc..)

Metals – Hot & Cold processing Mills for flat and long products.

Silcovert GN™Main Applications

PPT2013.01.01.13EN