TY - GEN
T1 - A Novel Cooling Technique for the Windings of High-Torque-Density Permanent Magnet Machines
AU - Zhang, Xintong
AU - Zhang, Chengming
AU - Fu, Pengrui
AU - Zhang, Chaoyu
AU - Li, Liyi
N1 - Publisher Copyright:
© 2018 KIEE EMECS (KIEE Electrical Machinery and Energy Conversion Systems).
PY - 2018/11/27
Y1 - 2018/11/27
N2 - In this paper, a novel cooling technique for the windings of high-torque-density permanent magnet machines is presented, that is, a miniature heat pipe inserting into the slot is adopted, thus, transferring the heat of the winding to the ambient air axially and increasing the convective area by fins. To describe the thermal performance accurately, a heat pipe with outer diameter of 2mm is tested and its thermal model is obtained according to the test result. To investigate the validity of the proposed technique, a lumped parameter transient thermal network (TN) model of the stator with heat pipes is established. The thermal performance of a 167W machine whose torque density is 5N·m/kg with this cooling technique is studied by using the thermal network. The analytical results show that the winding temperature is not more than 100°C when the current density is up to 12.5A/mm 2 with 4m/s forced air cooling. A finite element analysis (FEA) model is built and simulated to verify the analytical results.
AB - In this paper, a novel cooling technique for the windings of high-torque-density permanent magnet machines is presented, that is, a miniature heat pipe inserting into the slot is adopted, thus, transferring the heat of the winding to the ambient air axially and increasing the convective area by fins. To describe the thermal performance accurately, a heat pipe with outer diameter of 2mm is tested and its thermal model is obtained according to the test result. To investigate the validity of the proposed technique, a lumped parameter transient thermal network (TN) model of the stator with heat pipes is established. The thermal performance of a 167W machine whose torque density is 5N·m/kg with this cooling technique is studied by using the thermal network. The analytical results show that the winding temperature is not more than 100°C when the current density is up to 12.5A/mm 2 with 4m/s forced air cooling. A finite element analysis (FEA) model is built and simulated to verify the analytical results.
KW - Permanent magnet machine
KW - cooling technique
KW - high-torque-density
KW - miniature heat pipe
KW - thermal network
UR - https://www.scopus.com/pages/publications/85060048323
U2 - 10.23919/ICEMS.2018.8548984
DO - 10.23919/ICEMS.2018.8548984
M3 - 会议稿件
AN - SCOPUS:85060048323
T3 - ICEMS 2018 - 2018 21st International Conference on Electrical Machines and Systems
SP - 332
EP - 337
BT - ICEMS 2018 - 2018 21st International Conference on Electrical Machines and Systems
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 21st International Conference on Electrical Machines and Systems, ICEMS 2018
Y2 - 7 October 2018 through 10 October 2018
ER -