Simulating Sensors and Instrument Transformers with COMSOL®
所要時間: 1:00:19
In this archived webinar, originally hosted by IEEE Spectrum, learn about modeling sensors and instrument transformers with the COMSOL Multiphysics® software.
Guest speaker Nirmal Paudel, a senior R&D engineer at ABB, demonstrates how to simulate sensors and instrument transformers using the example of a split-core sensor for a medium-voltage use case. During the presentation, he discusses key steps in the modeling process and shows simulation results for other kinds of sensors.
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Chapter Selection
Introduction (0:00)
Agenda (1:38)
What is an Instrument Transformer? (2:02)
Current sensor based on Rogowski coil principle (3:06)
Voltage sensors – resistive and capacitive dividers (4:39)
Traditional ITs and Electronic ITs “Sensors” (5:41)
Examples of outdoor and indoor medium voltage sensors (7:48)
Multiphysics in instrument transformers and sensors (IT&S) (8:45)
Electric fields simulations (10:12)
Thermal simulations (11:40)
Structural simulations (12:32)
Very Fast Transient (VFT) phenomenon (15:23)
Voltage transformer offerings with VFT resistant designs (17:19)
Split core Working Principle and Design Challenges (18:34)
Single sensor simulation in COMSOL Multiphysics (20:58)
The nonlinear magnetic BH curve (23:14)
Split core Magnetic flux and current density plot (24:09)
Three phase cross-talk simulation (25:11)
Submersible split core sensor (27:31)
Modeling Coils and Transformers (40:37)
Electromagnetics (41:09)
Inductor and Coil, Magnets (42:15)
3D Coil Modeling (43:12)
AC/DC Module, Geometry Parts Library (44:01)
Magnetic Saturation Curves (44:50)
Modeling Magnetic Saturation (45:16)
Modeling Magnetic Hysteresis (46:00)
Multiphysics (46:29)
Induction Heating and Proximity Effect (47:43)
Magnetic Forces and Magnetic-Structure interaction (48:15)
Q&A (49:27)
Contact Us (58:59)