Nidec ASI_SILCOVERT H series

1. SILCOVERT H Series
PPT2013.01.01.14EN
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2. Silcovert H Series
Silcovert H Series are a Multi Level Converters with LV IGBT power devices and a more
efficient and precise control for induction and synchronous motors.
PPT2013.01.01.14EN
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3. Silcovert H Series
Our H-series drives are compatible with your existing motor
systems, regardless of brand or age. Part of our analysis will
address the alternative of installing a completely new
variable speed drive system versus that of adding a variable
frequency converter to an existing fixed speed motor or reusable equipment refurbishing. Our goal is to bring new life
to your plant through the analysis of existing motors.
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4. Silcovert H Series
VCF Main Assemblies
The variable frequency converter consists of several standard assemblies:
converter, inverter, d.c. link, cooling system, controller
cooling system
from input transformer 
~
d.c. link
=
 to a.c. motor
=
~
converter
inverter
controller
PPT2013.01.01.14EN
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5. Silcovert H Series
VCF Main Assemblies
Converter: change of a.c. power with fixed frequency into d.c. power
Inverter: change of d.c. power into a.c. power with variable voltage and frequency
D.C. link: energy storage
Cooling system: removal of the heat
Controller: control of the motor, monitor and protection of the system
cooling system
from input transformer 
~
d.c. link
=
=
 to a.c. motor
~
converter
inverter
controller
PPT2013.01.01.14EN
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6. Silcovert H Series
Converter & Inverter
Proven design
• VSI solutions
• multi-phase diode configurations
State-of-the-art technology
IGBT (fully-controlled, fast switching, low losses, proven)
Reliability of operation
• device selection
• sizing (application, load cycle)
• full load current test
PPT2013.01.01.14EN
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7. Silcovert H Series
Converter & Inverter
Modularity
• Power Cell
• compactness and robustness
• fast changefoto
Switching
• insulation HV/LV by optical fibres
• monitoring
Safety
• HV and LV circuits separation
• key interlock
• IP20 with open doors
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8. Silcovert H d.c. link
Series
d.c. Link
Integrated in the phase assembly together
with the capacitors (VSI)
Insulation monitor
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9. Silcovert H Series
Air Cooling
Air cooling system
• forced, in open loop (T environment ≤ 45°C, size)
• draft fan on top
• low pressure inside the cabinet
• suction from the front
• fan redundancy
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10. Silcovert H Series
Water Cooling
Water cooling system
• deionized, in closed loop (T raw water ≤
35°C)
• water pump, redundancy
• filter cartridges
• monitoring (pressure, temperature, flow,
conductivity)
• piping (PVC, stainless steel)
• water cooling unit integrated in the cabinet
• fast connections to easily remove the power assemblies
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11. Silcovert H Series
Water Cooling
Water-to-water heat exchanger
• integrated in the cooling unit (VFC cabinet)
Water-to-air heat exchanger (fin fans)
• raw water not available, T external air < 50°C
• external to the cabinet
• deionized water loop only
Water chiller unit
• raw water not available, T external air up to 52°C
(higher T on request)
water
chiller
• special machines
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12. Silcovert H Series
Controller
Drive controller
• full digital
• motor control (V/Hz, sensorless, FOC algorithms)
• monitoring and protecting functions (transformer, VFC, motor)
• auxiliary circuits management
• hardwired and serial interface
• remote monitoring and diagnostic capability
HMI
• graphic display
• indication in full language (user friendly)
• local control of the system
PPT2013.01.01.14EN
www.nidec-asi.com
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13. Silcovert NH
Silcovert NH - The PWM (for USA Market and special Applications) technique with high switching
frequency allows an almost sinusoidal motor current with low total losses and ripple-free torque. Its
water cooling method permits to achieve high output power ranges.
Power range:
water cooling
2900/14400 KVA
Air Cooling
1500/3700 KVA
Voltage:
up to 4160/6000/6600
Output Frequency:
5-140 Hz
PPT2013.01.01.14EN
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14. Silcovert TH
Silcovert TH – It’s configuration with several power cells connected in series per phase and the
PWM technique with high switching frequency allows an almost sinusoidal motor current with low
total losses and ripple-free torque. Its air cooling method permits to achieve an output power
range up to 3000 KVA.
Power range:
air cooling up to 8100 KVA
water cooling up to 18700 KVA
Voltage:
up to 4160/6000/6600/7200 V
Output Frequency:
250 Hz (std)
330 Hz max with derating
PPT2013.01.01.14EN
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15. Silcovert H Series
VSI Diagram
iU1
iU2
iU3
iV1
iV2
iV3
iU1
iU2
iU3
oU
iV1
iV2
iV3
iW1
oV
oW
iW1
iW2
iW3
iW2
iW3
multipulse diode front end configuration
PPT2013.01.01.14EN
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16. Silcovert H Series
Applications
Silcovert H Series can be used for various applications such as pumps ship propulsion, high torque
/ overload / dynamic requirements (metals), large centrifugal loads (pumps, compressors, fans) …
With a customized retrofit you can achieve increased levels of safety, reliability and
efficiency in your plant. We can assist you in the analysis to improve capacity
and reduceenergy consumption.
Our retrofitting solutions provide you with an optimum return-on-investment, long-time
cost reduction thanks to a more efficient and precise control of motors, pumps etc…,
reduced down-time and less maintenance.
PPT2013.01.01.14EN
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