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Christian Ohler, ABB Switzerland Corporate Research – June 16, 2016
Strategic Value of Simulation in ABBCADFEM Fachkonferenz zur Numerischen Simulation
Slide 2© ABB
• Introducing ABB• Simulations in ABB• Simulation of switching arcs in circuit breakers based on Ansys Fluent
Outline
June 9, 2016
Slide 3© ABB
ABB GroupFacts and figures
+140,000 employees
Present in
countries+100
Formed in
1988merger of Swiss (BBC, 1891)and Swedish (ASEA, 1883)engineering companies
In revenue(2015)
billion40$
June 9, 2016© ABB
150nationalities
+300production plants
Slide 4© ABB
How ABB is organizedFour global divisions
PowerGrids
DiscreteAutomation
& Motion
ElectrificationProducts
ProcessAutomation
June 9, 2016
Slide 5© ABB
Innovation is key to ABB’s competitive advantageLeadership built on consistent R&D investment
More than $1.5 billion invested annually in R&D8,500 scientists and engineersSimulation is key activity in both research and development
June 9, 2016
Slide 6© ABB
Simulations in ABBFrom semiconductor chips to power systems
Simulations of power semiconductors Simulations of power transformers
Simulations of process plants Simulations of power systems
June 9, 2016
Slide 7© ABB
Use Cases for Power Products Simulations in ABB
June 9, 2016
ARC-Simulations
ARC-Simulations
CFD,Mechanics,Multi-physics
Hourly Dielectric,Electro-mechanical,Thermal networks
Unique toolsAnsys + proprietary code
High-end toolse.g. Ansys
Simple toolsCAD embedded
Ease-of-use
Frequencyof usage
Daily
Weekly
Slide 8© ABB
Research• Main purpose is to understand better• Uncertainty in the assumptions of the model• Key activity: experimental validation
Simulation has a different purpose in research ascompared to development
Development• Model is valid• Main purpose is engineering productivity
• What-if and optimization• Second purpose is international dissemination
of design rules in the company
June 9, 2016
Slide 9© ABB
BackgroundKey in High Voltage circuit breaker design is to control the arc
June 9, 2016
CB
Interruption chamber
Arcing zone
ArcDrive
“Enc
losu
re”
Three dimensional computational fluid dynamicsimulation of switching arcs (1)
Three dimensional computational fluid dynamicsimulation of switching arcs (2)
Three dimensional computational fluid dynamicsimulation of switching arcs (3)
Slide 13© ABB
Experimental ValidationFlow pattern, Density and Temperature Distribution
June 9, 2016
laser
optics & camera
beamexpander
model CB
0 1 2 3 40
5
10
15
20
25
Tem
pera
ture
[x10
3K]
radius [mm]
Speckle Imaging Reference Technique
Speckle imagingShadowgraph
Slide 14© ABB
Experimental ValidationBreakdown
June 9, 2016
- 30 ms- 30 ms + 36 ms+ 36 ms
- 15 ms- 15 ms + 202 ms+ 202 ms
Slide 15© ABB
• Large variety of simulations is a key capability for ABB• Development: simulations for engineering productivity• Research: simulations for knowledge built-up
ConclusionStrategic Value of Simulation in ABB
June 9, 2016
