View
103
Download
0
Category
Preview:
DESCRIPTION
VFD
Citation preview
7/15/2019 AFE Active Front End
1/28
AFEActive Front End
Overview
What is an Active Front End (AFE)?
Use of AFE
Product Overview
Abbreviations and Concept Declarations
Drive possibilities
Examples for calculations
7/15/2019 AFE Active Front End
2/28
2Schneider Electric - Motion & Drives t raining - Title of the training module 23/04/2008
Altivar Active Front End
> Overview
> What is an Active Front End (AFE)
> Use of AFE
> Product Overview
> Abbreviations and Concept
Declarations
> Drive possibilities
> Examples for calculations
7/15/2019 AFE Active Front End
3/28
3Schneider Electric - Motion & Drives t raining - Active Front End Module 1 12/2009
What is an AFE?
Active Front End
7/15/2019 AFE Active Front End
4/28
4Schneider Electric - Motion & Drives t raining - Title of the training module 23/04/2008
Altivar Active Front End
> Overview
> What is an Active Front End (AFE)
> Use of AFE> Product Overview
> Abbreviations and Concept
Declarations
> Drive possibilities
> Examples for calculations
7/15/2019 AFE Active Front End
5/285Schneider Electric - Motion & Drives t raining - Active Front End Module 1 12/2009
Use of Active Front End
Reduce the mains current harmonics
Only sine wave input current into the AFE
with standard ATV 61/71
with Active Front End
7/15/2019 AFE Active Front End
6/286Schneider Electric - Motion & Drives t raining - Active Front End Module 1 12/2009
Use of Active Front End
Saving energy by reducing the share of reactive power
Cos (phi) und (lambda) = 1 => THDi < 4%
7/15/2019 AFE Active Front End
7/287Schneider Electric - Motion & Drives t raining - Active Front End Module 1 12/2009
Use of Active Front End
Return excess energy to the mains
Recuperative 4-quadrant operation standard
7/15/2019 AFE Active Front End
8/28
8Schneider Electric - Motion & Drives t raining - Active Front End Module 1 12/2009
Use of Active Front End
Low Harmonic Application Examples
Pumps
Fans
Compressors
7/15/2019 AFE Active Front End
9/28
9Schneider Electric - Motion & Drives t raining - Active Front End Module 1 12/2009
Use of Active Front End
4-Quadrant Application Examples
Crane applications (hoists, long-travels, ...)
Downhill conveyors, winches, escalators
Complex drive systems
Test benches and high dynamic drives
Pump/turbine combinations
7/15/2019 AFE Active Front End
10/28
10Schneider Electric - Motion & Drives t raining - Title of the training module 23/04/2008
Altivar Active Front End
> Overview
> What is an Active Front End (AFE)
> Use of AFE> Product Overview
> Abbreviations and Concept
Declarations
> Drive possibilities
> Examples for calculations
7/15/2019 AFE Active Front End
11/28
11Schneider Electric - Motion & Drives t raining - Active Front End Module 1 12/2009
Product Overview
Active Front End
Components
Line Filter Module Line Filter Choke
Active Infeed Converter
7/15/2019 AFE Active Front End
12/28
12Schneider Electric - Motion & Drives t raining - Active Front End Module 1 12/2009
Product Overview
Power range 120860kW
Voltage Ranges
3 AC 380480V
(120675kW) 3 AC 500690V
(145860kW)
Mains frequency
50/60 Hz 5%
Power Factor Cos=1 const.
Protection degree
Built-in units IP00
Interfaces
Removable operating panel
Control terminals can be
extended
Fieldbus connection via
Modbus or CANopen
7/15/2019 AFE Active Front End
13/28
13Schneider Electric - Motion & Drives t raining - Title of the training module 23/04/2008
Altivar Active Front End
> Overview
> What is an Active Front End (AFE)
> Use of AFE> Product Overview
> Abbreviations and Concept
Declarations
> Drive possibilities
> Examples for calculations
7/15/2019 AFE Active Front End
14/28
14Schneider Electric - Motion & Drives t raining - Active Front End Module 1 12/2009
Abbreviations and Concept
Declarations
AFE => Active Front End
LFM => Line Filter Module
LFC => Line Filter Choke
AIC => Active Infeed Converter
ATV => Altivar(61/71)
INV => Inverter (ATV61/71)
M => Motor
7/15/2019 AFE Active Front End
15/28
15Schneider Electric - Motion & Drives t raining - Title of the training module 23/04/2008
Altivar Active Front End
> Overview
> What is an Active Front End (AFE)
> Use of AFE> Product Overview
> Abbreviations and Concept
Declarations
> Drive possibilities
> Examples for calculations
7/15/2019 AFE Active Front End
16/28
16Schneider Electric - Motion & Drives t raining - Active Front End Module 1 12/2009
Drive possibilitiesLow harmonic drive 1:1 application
Low harmonic drive ATV61/71 with an Active Front End in series
Spare parts of AIC and INV up to 90 % identical
THD(i)
value < 4%
7/15/2019 AFE Active Front End
17/28
17Schneider Electric - Motion & Drives t raining - Active Front End Module 1 12/2009
Drive possibilities4-quadrant single drive 1:1 application
The same advantages as the Low Harmonic Drive
4-quadrant drive with variable energy and speed direction
E.g. at lowering a load, the energy is feed back to the mains
Changing from motor to
generator is shock free
7/15/2019 AFE Active Front End
18/28
18Schneider Electric - Motion & Drives t raining - Active Front End Module 1 12/2009
Drive possibilitiesCommon DC bus 1:n application
Low harmonic drive advantages
Active Front End with several
Inverters via a common DC bus
link
E.g. roller conveyors, motor test
benches and group drives in
sheet metal processing
machines
7/15/2019 AFE Active Front End
19/28
19Schneider Electric - Motion & Drives t raining - Active Front End Module 1 12/2009
Drive possibilitiesActive Front End units parallel n:n application
Several Active Front End units parallelwith several Inverters
Advantages
A higher supply / regenerating power
An increased reliability due to
redundancy The use of smaller units e.g. adapted to
the size of the inverter in order to reducethe spare parts
Depending on power demand, individualActive Front End units can be locked or
released during operation.
Connection and disconnection must beonly executed with no voltage!
7/15/2019 AFE Active Front End
20/28
20Schneider Electric - Motion & Drives t raining - Title of the training module 23/04/2008
Altivar Active Front End
> Overview
> What is an Active Front End (AFE)
> Use of AFE> Product Overview
> Abbreviations and Concept
Declarations
> Drive possibilities
> Examples for calculations
7/15/2019 AFE Active Front End
21/28
21Schneider Electric - Motion & Drives t raining - Active Front End Module 1 12/2009
Examples for calculationsExample 1: Common DC bus
Check the Inverter on p. 84 in the selection guide
for DC power
Check the capacity of both Inverters (p. 84 in the
selection guide)
7/15/2019 AFE Active Front End
22/28
22Schneider Electric - Motion & Drives t raining - Active Front End Module 1 12/2009
Examples for calculationsExample 1: Common DC bus
Calculate the total capacity and the output power
Find the appropriate AFE for 100kW and 34mF (common DC bus: p.36 in the
selection guide)
E l f l l i
7/15/2019 AFE Active Front End
23/28
23Schneider Electric - Motion & Drives t raining - Active Front End Module 1 12/2009
Examples for calculationsExample 2: Common DC bus
Check the Inverter on p. 84 in the selection guide for DC power
Check the capacity of all six Inverters (p. 84 in the selection guide)
E l f l l ti
7/15/2019 AFE Active Front End
24/28
24Schneider Electric - Motion & Drives t raining - Active Front End Module 1 12/2009
Examples for calculationsExample 2: Common DC bus
Calculate the total capacity and the output power
Find the appropriate AFE for 204kW and 12mF (common DC bus: p.36 in the
selection guide)
E l f l l ti
7/15/2019 AFE Active Front End
25/28
25Schneider Electric - Motion & Drives t raining - Active Front End Module 1 12/2009
Examples for calculationsActive Front End units parallel: 3
Check the Inverter on p. 84 in the selection guide for DC power
Check the capacity of all five Inverters (p. 84 in the selection guide)
E l f l l ti
7/15/2019 AFE Active Front End
26/28
26Schneider Electric - Motion & Drives t raining - Active Front End Module 1 12/2009
Examples for calculationsActive Front End units parallel: 3
Calculate the total capacity and the output power
Find the appropriate AFE for 510kW and 59.5mF each (AFE units parallel:
p.50 and 51 in the selection guide)
7/15/2019 AFE Active Front End
27/28
27Schneider Electric - Motion & Drives t raining - Title of the training module 23/04/2008
Motion & Drives t raining
Any
questions?
7/15/2019 AFE Active Front End
28/28
28Schneider Electric - Motion & Drives t raining - Title of the training module 23/04/2008
Motion & Drives t raining
Make the most of your energyThanks!
Recommended