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Design studies and performance of HEFSM with various slot-pole combinations for HEV applications

Sulaiman, Erwan and Ahmad, Md Zarafi and Haron, Zainal Alam and Kosaka, T. (2012) Design studies and performance of HEFSM with various slot-pole combinations for HEV applications. In: 2012 IEEE International Conference on Power and Energy (PECon), 2-5 December 2012, Kota Kinabalu Sabah, Malaysia.


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Hybrid electric vehicles (HEVs) using combination of an internal combustion engine (ICE) and one or more electric motors are widely considered as the most promising solution for clean vehicles. One example of successfully developed electric machines for HEVs is interior permanent magnet synchronous motor (IPMSM), selected due to its smaller size and lighter weight providing with design freedom of the vehicles and its higher efficiency contributing to less fuel consumption. However, IPMSM design tends to be difficult due to all permanent magnets (PMs) are built in the rotor core. The mechanical strength relies mainly on thickness and number of bridges around PM but high number of bridges reduces the maximum torque due to increases in flux leakage. Therefore, a new candidate of hybrid excitation flux switching motor (HEFSM) with rugged rotor structure suitable for high-speed operation and with the ability to keep high torque and power density is proposed. Various combinations of slot-pole HEFSMs such as 6S-4P, 6S-5P, 6S-7P and 6S-8P are designed and analyzed. The performances of all designs are compared with IPMSM used in Lexus RX400h.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: hybrid electric vehicle (HEV); internal combustion engine (ICE); interior permanent magnet synchronous machine (IPMSM); hybrid excitation flux switching motor (HEFSM); permanent magnet (PM); field excitation coil (FEC)
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK2000-2891 Dynamoelectric machinery and auxiliaries
Divisions: Faculty of Electrical and Electronic Engineering > Department of Electrical Power Engineering
Depositing User: Normajihan Abd. Rahman
Date Deposited: 18 Feb 2015 08:15
Last Modified: 18 Feb 2015 08:15
URI: http://eprints.uthm.edu.my/id/eprint/6081
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