Journal
IEEE ACCESS
Volume 10, Issue -, Pages 819-831Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/ACCESS.2021.3137897
Keywords
Stators; Magnetic flux; Torque; Rotors; Inductance; Geometry; Fault currents; Electric machine design; electric vehicle (EV); finite element analysis (FEA); flux-weakening (FW); interior permanent magnet synchronous motor (IPMSM); traction motor
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Funding
- Inha University
- BK21 Four Program - Ministry of Education (MOE), South Korea
- National Research Foundation of Korea (NRF) - Korean Government [Ministry of Science, ICT & Future Planning (MSIP)] [2021R1F1A1048754]
- National Research Foundation of Korea [2021R1F1A1048754] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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This paper presents a detailed process for designing interior permanent magnet synchronous machines for electric vehicle applications. It proposes a comprehensive design process with two objectives and three constraints to achieve an optimal design that meets the key performance requirements for EVs. The impact of machine dimensions on key design parameters is thoroughly investigated, and additional analyses are provided to highlight the advantages and limitations of different designs.
This paper presents a detailed process for the design of interior permanent magnet synchronous machines (IPMSMs) for electric vehicle (EV) applications. First, a comprehensive design process featuring two objectives and three constraints is proposed to realize an optimal IPMSM design that can satisfy the key performance requirements for an EV application. The objectives and constraints were carefully selected and designed to obtain a balance between performance, efficiency, and cost. Because the inductances and magnet flux linkage of the machine are key design parameters for attaining optimal flux-weakening capability, the impact of the machine dimensions on these two parameters is thoroughly investigated and explained using both analytical and numerical techniques. Additional analyses including normalized key performance metrics and the impact of short-circuit faults in PM machines with three different characteristic current values (1, 1.3, and 2.6 pu) are also provided, highlighting the advantages and limitations of the three baseline designs.
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