Investigation of a Cup-Rotor Permanent-Magnet Doubly Fed Machine for Extended-Range Electric Vehicles

Chaoying Xia (), Jiaxiang Bi and Jianning Shi
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Chaoying Xia: School of Electrical and Information Engineering, Tianjin University, No. 92 Weijin Road, Tianjin 300072, China
Jiaxiang Bi: School of Electrical and Information Engineering, Tianjin University, No. 92 Weijin Road, Tianjin 300072, China
Jianning Shi: School of Electrical and Information Engineering, Tianjin University, No. 92 Weijin Road, Tianjin 300072, China

Energies, 2023, vol. 16, issue 5, 1-23

Abstract: This paper investigates a cup-rotor permanent-magnet doubly fed machine (CRPM-DFM) for extended-range electric vehicles (EREVs). The topology and operating principle of the powertrain system based on CRPM-DFM are introduced. Then, the mathematical model of CRPM-DFM is established and the feedback linearization control of CRPM-DFM is given to realize the decoupling control of flux and torque. Moreover, the torque characteristic of CRPM-DFM is analyzed and the load torque boundaries with sinusoidal steady-state solution of CRPM-DFM is deduced. In addition, the MTPA control is derived to improve the efficiency of CRPM-DFM, and the efficiency of CRPM-DFM regarding various operating modes is investigated. Furthermore, the speed optimization strategy of ICE is proposed to reduce fuel consumption. Finally, the driving performance and fuel economy of the powertrain system are verified by simulation.

Keywords: cup-rotor permanent-magnet doubly fed machine; extended-range electric vehicle; speed coupler; load torque boundary; efficiency; fuel consumption (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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