today: intro electromechanical devices - electrical...
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Today: Intro electromechanical devices
1
Charger
Active balancing DC‐DC
DrivetrainDC‐DC
HV‐to‐LV DC‐DC
12V battery,Lights, Electronics, …
• Introduction to electromechanical devices• AC machine
• Permanent‐magnet synchronous machine, induction machine• Operation, losses and efficiency and dynamic model
• 3‐phase DC‐to‐AC inverter• Operation, losses and efficiency, dynamic model
• Electric drive: control
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Vbat
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Vbus
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AC motor drive
Physical limits: losses
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Core losses: hysteresis and eddy current lossesCopper losses• DC winding resistance RL• Skin and proximity effects
Textbook Section 13.3
Introduction to electromechanical devices
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Reference on electric machines: P.Krause, O.Wasynczuk, S.Pekarek, Electromechanical Motion Devices, 2nd edition, Wiley 2012
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