Innovations in Drive Technologies
High-availability, medium-voltage, variable speed drives for pumping and compression
© Siemens AG 2015.
2013. All rights reserved.
Common MV VSD topologies
PWM 3 level
LCI
Multi-cell
LV & MV IGBT
LV & MV IGBT
Thyristor
IGCT
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Simple, low component count
40+ years references
High power density
Synchronous motors
Harmonic filter
© Siemens AG 2015. All rights reserved.
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Basic VSI platform
25 years references
Induction or synchronous motors
Medium Performance
Standard transformer
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Most Common VSI platform
20 years references
Induction or synchronous motors
High Performance
Scalable
Perfect Harmony concept – Multi-cell topology
MV output waveform quality
Clean output waveform allows:
Use with new and old DOL motors – ideal for retrofit
Use of standard cables
Longer cable step-outs – longest reference ~30km!
© Siemens AG 2015. All rights reserved.
SINAMICS GH180 Perfect Harmony Air cooled MV drive
• 150kW to 6,000 kW
• 2300V
• 40A
7370V output voltage
720A output current
• Integrated safety earth switches
• MicroHarmony:
Smallest MV AC Drive on the market
Perfect for offshore:
1000HP / 750 kW @ 4000V output
1.68m wide x 1.1m deep
Up to 13.8kV input voltage direct!
1.68m
© Siemens AG 2015. All rights reserved.
SINAMICS GH150 Perfect Harmony water cooled MV Drive –
Extending the proven design concepts
Separate transformer
gives installation
flexibility
+
Marine certification (e.g. DNV, GL,
ABS, CCS, LRS, BV classification)
+
Multi-level high quality
output waveform
+
Over 3 years operation
and more than 4
million hours of cell run
time
+
Highest availability due
to Cell Bypass feature
and Cell redundancy
+
options
© Siemens AG 2015. All rights reserved.
Internal arc certification acc.
IEC 62271-200 25kA, 500mS
+
GH150 - the multi-level drive that adjusts to your demands
Induction
motors
Dry type
Oil-filled
IM
Outdoor
Retrofit motors
Synchronous
motors
Pulse no.
Line
Water cooling
Motor
Indoor
Long cables
side
Air cooling
side
M
Prim. voltage
© Siemens AG 2015. All rights reserved.
Permanent
excited motors
PEM
High speed
>150 Hz
The multi-level drive that adjusts to your line and motor side demands.
Flexibility is one important key to reduce the total cost of ownership.
SYN
Function principle of the M2C topology
P
Single module
X2
• 2-terminal cells without external power
supply
• DC-link without central energy storage
• Flexible for common DC-bus
applications
• Flexible for front end or braking
chopper
• Scalable output voltage
Arm
X1
T11
vZ1
X2
VX21
VSM
+
-
CSM
T12
X1
L
Vd
L1
L2
L3
L
vZ2
Module output voltages
VX21
N
VSM1
T12
© Siemens AG 2015. All rights reserved.
T11
t
Function principle of the M2C topology
P
Single
Twin module
module
X2
Arm
X1
T11
vZ1
X2
VX21
VVSM1
SM
+
-
C
CSM
SM
T12
VX21
X1
T21
L
Vd
L1
L
L2
L3
VSM2
X1
+
-
CSM
T22
vZ2
• 2-terminal cells without external power
supply
• DC-link without central energy storage
• Flexible for common DC-bus
applications
• Flexible for front end or braking
chopper
• Scalable output voltage
Module output voltages
VX21
VSM1+
VSM2
N
VSM1
VSM2
T12T,T
T,T
1221 T11
1121 T 11 ,T22 tT12 ,T22
© Siemens AG 2015. All rights reserved.
t
Principles of operation of a Modular Multi-Level Converter (M2C)
Perfect Harmony performance:
• Extremely motor-friendly behavior
• Near sinusoidal output voltage
• Without output filter!
• No motor harmonic heating
• No motor/cable insulation stress
• No additional bearing currents
© Siemens AG 2015. All rights reserved.
SINAMICS PERFECT HARMONY GH150
Cell bypass - Fault tolerance - High availability
Cell cabinet – Modular plug-in cell design
Cell bypass switch isolating the failed
cell from the conduction path. No output speed
reduction due to very fast bypass operation
Increased maintainability due to modular, compact
and light weight IGBT modules that are easy
to replace from the front in less than 10 min
Water-cooled power cell using state of the art Low
Voltage IGBTs and long life self-healing air-cooled
capacitors
© Siemens AG 2015. All rights reserved.
SINAMICS PERFECT HARMONY
Long cable experience + 20 years
Application:
28km start-up in 2007, 6.6kV subsea MPP,
+8000V output without step-up transformer!
Projects:
Gannet 15km, Otter 23km,
Auk 14km, Captain, Wytch Farm,
Amoco Orient, Marathon Oil, Santos,
Petrobras Campos Basin, India.
Features:
• Reduced footprint;
• Direct line connection up to13.8kV
• MV output; no step up transformer
• IEEE 519 harmonics standard compliant
• unique Cell Bypass feature
Scope of Supply:
• 1000+ Perfect Harmony on ESPs & MPP
• 16 x 1000HP VSDs on one platform –
without supply harmonic filters
• Motor cable lengths from 2 km to 28km+
© Siemens AG 2015. All rights reserved.
28 km+
1700 m
SUBSEA PUMPS
King GOM
We are happy to answer your questions!
© Siemens AG 2013.
2015. All rights reserved.