EV/HEV应用的分段式​交替极永磁型混合励磁磁通切换电机的优化设计

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EV/HEV应用的分段式交替极永磁型混合励磁磁通切换电机的优化设计Design and Optimization of Segmented PM Consequent Pole Hybrid Excited Flux Switching Machine for EV/HEV Application

Author：Wasiq Ullah; Faisal Khan; Muhammad Umair

DOI: 10.30941/CESTEMS.2020.00026

https://ieeexplore.ieee.org/document/9211092

01

Abstract

  Hybrid Excited Flux Switching Machines (HEFSMs) unique feature of high torque density (𝑻𝒅𝒆𝒏) of Permanent Magnet (PM) machines and flux regulation capability of wound field excitation machines. Due to aforesaid unique features, stator active HEFSMs are preferred for EV/HEV applications. In this paper a new Segmented PM Consequent Pole HE-FSM (SPMCPHEFSM) with flux bridge is proposed for EV/HEV. The developed SPMCPHEFSM exhibits improved flux modulation and flux regulation capability at reduced PM usage (suppressed PM volume by 46.52% and PM cost by 46.48%) and eliminating stator leakage flux. First, SPMCPHEFSM is geometric optimized (GO) for investigating influence of leading design with key performance indicators such as flux linkage (𝜱𝒑𝒑), average torque (𝑻𝒂𝒗𝒈), cogging torque (𝑻𝒄𝒐𝒈), 𝑻𝒅𝒆𝒏, average power (𝑷𝒂𝒗𝒈) and power density (𝑷𝒅𝒆𝒏) and then proceeded optimized model to structure modification for optimal stator design and position of field excitation coils (FEC). Comprehensive performance analysis reveals that the developed SPMCPHEFSM show improved 𝜱𝒑𝒑 maximum up to 9.11%, improved 𝑻𝒂𝒗𝒈 maximum up to 23.63%, truncate 𝑻𝒄𝒐𝒈 up to 18.9% whereas 𝑻𝒅𝒆𝒏 and 𝑷𝒅𝒆𝒏 are boost up to 23.55% and 89.72% respectively.

02

Main content

  Hybrid Excited Flux Switching Machines (HEFSMs) unique feature of high torque density (T_den )of Permanent Magnet (PM) machines and flux regulation capability of wound field excitation machines. Due to aforesaid unique features, stator active HEFSMs are preferred for EV/HEV applications. In this paper a new Segmented PM Consequent Pole HE-FSM (SPMCPHEFSM) with flux bridge is proposed for EV/HEV as shown in Fig. 1. The developed SPMCPHEFSM exhibits improved flux modulation and flux regulation capability (as shown in Fig. 2 and Fig. 3) at reduced PM usage (suppressed PM volume by 46.52% and PM cost by 46.48%) and eliminating stator leakage flux. First, SPMCPHEFSM is geometric optimized (GO) for investigating influence of leading design parameters with key performance indicators such as flux linkage (Φpp), average torque (T_avg), cogging torque(T_cog), T_den, average power (P_avg) and power density (P_den). GO is opted based on objective function, constraint, and boundary condition as

 The overall GO process sequentially optimized rotor and stator. Comprehensive performance analysis reveals that the developed SPMCPHEFSM show improved Φpp maximum up to 9.11%, improved T_avg maximum up to 23.63%, truncate T_cog up to 18.9% whereas T_den and P_den are boost up to 23.55% and 89.72% respectively.

Fig. 1. Proposed SPMCPHEFSM topology.

Fig. 2. Flux linkage under different excitation source.

04

Conclusion

  This paper proposed and investigates a new SPMCPHEFSM with flux bridge for EV/HEV application. Proposed SPMCPHEFSM exhibits enhanced flux modulation and flux regulation capability at reduced PM usage utilizing CM-PMs and RM-PMs that suppressed PM volume by 46.52% and PM cost by 46.48% and eliminating stator leakage flux. Furthermore, influence of leading design parameters is investigated utilizing geometric optimization and proceeded to structure modification for optimal stator design and position of excitation winding. Analysis reveals that proposed SPMCPHEFSM show improved    Φpp  maximum up to 9.11%, improved T_avg maximum up to 23.63%, truncate T_cog up to 18.9% whereas T_den and P_den are boost up to 23.55% and 89.72% respectively.

引用本文

W. Ullah, F. Khan and M. Umair, "Design and optimization of segmented PM consequent pole hybrid excited flux switching machine for EV/HEV application," in CES Transactions on Electrical Machines and Systems, vol. 4, no. 3, pp. 206-214, Sept. 2020, doi: 10.30941/CESTEMS.2020.00026.

本文作者

Wasiq Ullah (Student member, IEEE) is basically from Afghanistan and was born in District Peshawar, Khyber Pakhtunkhwa, Pakistan in 1995. He received his B.S. and M.S degrees in electrical (power) engineering from COMSATS University Islamabad (Abbottabad Campus), Abbottabad, Pakistan in 2018 and 2020, respectively. He is currently pursuing PhD degree in electrical (power) engineering from COMSATS University Islamabad (Abbottabad Campus), Abbottabad, Pakistan.

From 2018 till now, he is Research Associates with Electric Machine Design research group. His research interests include analytical modelling, design analysis and optimization of Permanent Magnet Flux Switching Machines, Linear Flux Switching Machines, Hybrid Excited Flux Switching Machines, and novel Consequent pole Flux Switching Machines for high-speed brushless AC applications.

He is a graduate student member IEEE, and member of Pakistan engineering council. 

Faisal Khan (Member, IEEE) was born in District Charsadda, Khyber Pakhtunkhwa, Pakistan in 1986. He received his B.S. degree in electronics engineering from COMSATS University Islamabad (Abbottabad Campus), Pakistan in 2009 and M.S. degree in electrical engineering from COMSATS University Islamabad (Abbottabad Campus), Pakistan in 2012. He received Ph.D. degree in electrical engineering from Universiti Tun Hussein Onn Malaysia, Malaysia in 2017.

From 2010 to 2012, he was a Lecturer at University of Engineering & Technology, Abbottabad, Pakistan. Since 2017, he has been Assistant Professor with the Electrical and Computer Engineering Department, COMSATS University Islamabad (Abbottabad Campus), Pakistan. He is author of more than hundred publications, one patent, and received multiple research awards. His research interests include design and analysis of flux-switching machines, synchronous machines, and DC machines.

He is a member of IEEE-IES Electrical Machines Technical Committee.

Muhammad Umair was born in District Peshawar, Khyber Pakhtunkhwa, Pakistan in 1995. He received his B.S. degrees in electrical (power) engineering from COMSATS University Islamabad (Abbottabad Campus), Abbottabad, Pakistan in 2018. He is currently perusing M.S degree in Electrical (Power) Engineering at COMSATS University Islamabad (Abbottabad Campus). His research interests include design, analysis, optimization and experimental validation of flux-switching machines.

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