Thermal Modeling and Driving-cycle Critical Temperatures Estimation of Electrically Excited Synchronous Machine for Automotive Traction
Paper i proceeding, 2023

Electrically Excited Synchronous Machines (EESM) has garnered attention due to their outstanding performance characteristics but it presents significant thermal challenges. The rotor is embedded with active conductors resulting in a high loss density and large amount of heat that discourage the adoption of this machine in various applications. This paper investigates into the feasibility of utilizing a 60 kW EESM for a commercial vehicle application, with a specific focus on understanding its thermal behavior. Steady-state 3D Conjugate Heat Transfer (CHT) analysis is conducted to obtain the temperature response of various machine components across the torque-speed map. Based on this analysis, thermal resistances are estimated to construct a simplified Lumped Parameter Thermal Network (LPTN) and predict maximum temperatures along the Worldwide harmonized Light-duty vehicles Test Cycles (WLTC). Simulations in MATLAB Simulink show that the temperatures remain below the limits defined by the winding insulation class throughout the entire driving cycle. This finding assures the reliability and safe operation of the EESM for the considered application.

Computational Fluid Dynamics (CFD)

Conjugate Heat Transfer (CHT)

Electric Motors

Thermal model

E-motors

Electrically Excited Synchronous Machine (EESM)

E-mobility

Driving cycle

Lumped parameters thermal network (LPTN)

Författare

Luca Boscaglia

Chalmers, Elektroteknik, Elkraftteknik

Daniele Chiappini

Niccolò Cusano University

Nimananda Sharma

Chalmers, Elektroteknik, Elkraftteknik

Yujing Liu

Chalmers, Elektroteknik, Elkraftteknik

Junfei Tang

Chalmers, Elektroteknik, Elkraftteknik

Bowen Jiang

Chalmers, Elektroteknik, Elkraftteknik

2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023

4501-4508
9798350316445 (ISBN)

2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023
Nashville, USA,

Ämneskategorier

Energiteknik

Annan elektroteknik och elektronik

DOI

10.1109/ECCE53617.2023.10362313

Mer information

Senast uppdaterat

2024-02-02