Next Article in Journal
Next Article in Special Issue
Previous Article in Journal
Previous Article in Special Issue
Energies 2014, 7(3), 1393-1426; doi:10.3390/en7031393
Article

Investigation of the Cooling and Thermal-Measuring System of a Compound-Structure Permanent-Magnet Synchronous Machine

, * ,
,
,
 and
Received: 17 October 2013; in revised form: 18 February 2014 / Accepted: 19 February 2014 / Published: 7 March 2014
(This article belongs to the Special Issue Advances in Hybrid Vehicles)
View Full-Text   |   Download PDF [1503 KB, uploaded 7 March 2014]
Abstract: The compound-structure permanent-magnet synchronous machine (CS-PMSM) is a power-split device which can enable the internal combustion engine (ICE) to operate at optimum efficiency during all driving conditions by controlling its torque and speed. However, the CS-PMSM has more serious temperature rise and heat dissipation problems than conventional permanent-magnet (PM) machines, especially when the CS-PMSM is running at low speed and under full load conditions. As the thermal resistance of double-layer air gaps is quite big, the hot spot proves to be in the inner winding rotor. To ensure the safe operation of the CS-PMSM, the use of forced-air and water cooling in the inner winding rotor are investigated. The study shows that the water cooling can provide a better cooling effect, but require a complicated mechanical structure. Considering the complexity of the high efficiency cooling system, a real-time temperature monitoring method is proposed and a temperature measuring system which can accurately measure the real-time temperature of multiple key points in the machine is developed to promptly adjust the operating and cooling conditions based on the measured temperature results. Finally, the temperature rise experiment of the CS-PMSM prototype is done and the simulation results are partly validated by the experimental data.
Keywords: compound-structure permanent-magnet synchronous machine (CS-PMSM); cooling system; heat dissipation; real-time; thermal-field; temperature monitoring; temperature rise compound-structure permanent-magnet synchronous machine (CS-PMSM); cooling system; heat dissipation; real-time; thermal-field; temperature monitoring; temperature rise
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Export to BibTeX |
EndNote


MDPI and ACS Style

Bai, J.; Liu, Y.; Sui, Y.; Tong, C.; Zhao, Q.; Zhang, J. Investigation of the Cooling and Thermal-Measuring System of a Compound-Structure Permanent-Magnet Synchronous Machine. Energies 2014, 7, 1393-1426.

AMA Style

Bai J, Liu Y, Sui Y, Tong C, Zhao Q, Zhang J. Investigation of the Cooling and Thermal-Measuring System of a Compound-Structure Permanent-Magnet Synchronous Machine. Energies. 2014; 7(3):1393-1426.

Chicago/Turabian Style

Bai, Jingang; Liu, Yong; Sui, Yi; Tong, Chengde; Zhao, Quanbin; Zhang, Jiawei. 2014. "Investigation of the Cooling and Thermal-Measuring System of a Compound-Structure Permanent-Magnet Synchronous Machine." Energies 7, no. 3: 1393-1426.


Energies EISSN 1996-1073 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert