Comparison Of The Properties Of The Different Sinamics Infeeds - Siemens SINAMICS G130 Engineering Manual

Comparison of the properties of the different SINAMICS Infeeds

The table below shows a brief, general comparison of all the key properties of the different Infeed types.
SINAMICS Infeeds
Mode of operation
Stable operation in
regenerative mode
also during line
supply failures
Power
semiconductors
Line-side reactor
Power factor cosφ
(fundamental
frequency)
Total Harmonic
Distortion factor of
the line current
THD(I)
- 6-pulse
- 6-pulse with LHF
- 12-pulse
EMC filter
category C3
DC link voltage
at full load
Voltage at motor
winding
- By means of the firing
angle with thyristors
Precharging
- By means of resistors
with diodes
Prechargeable
- High with thyristors
DC link
- Low with diodes
capacitance
Efficiency
Volume
Price
Comparison of the properties of different SINAMICS Infeeds
Fundamental Principles and System Description
Basic Infeed
Rectifier mode
(2Q)
Not relevant
Thyristors / Diodes
2 %
> 0.96
Typically 30 % - 45 %
Typically 8 % - 10 %
Typically 8 % - 10 %
Yes
1.32 • V
Line
(non-stabilized)
Low
> 99.0 %
Low
Low
Smart Infeed
Rectifier / regenerative mode
(4Q)
Yes
IGBT modules
4 %
> 0.96
Typically 30 % - 45 %
-
Typically 8 % - 10 %
Yes
Approx. 1.30 • V
Line
(non-stabilized)
Low
By means of resistors
Low
> 98.5 %
Medium
Medium
SINAMICS Engineering Manual - May 2008
Engineering Information
Active Infeed
Rectifier / regenerative mode
(4Q)
Yes
IGBT modules
Clean Power Filter in AIM
Parameterizable
(factory setting = 1)
Typically 3 %
-
-
-
Yes
> 1.42 • V
Line
(stabilized and programmable)
Higher than with Basic Infeed
and Smart Infeed
By means of resistors
Low
> 97.5 %
High
High
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