Performance Improvement of Partitioned Stator Switched Flux Memory Machines With Triple-Magnet Configuration

Performance Improvement of Partitioned Stator Switched Flux Memory Machines With Triple-Magnet Configuration
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具有三磁体配置的分区定子开关磁通存储机器的性能改进

DOI:
10.1109/tmag.2016.2519514
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发表时间:
2016-01
影响因子:
2.1
通讯作者:
Feng Ningjun
Feng Ningjun
中科院分区:
工程技术4区
文献类型:
--
作者:
Yang Hui;Zhu Z. Q.;Lin Heyun;Zhang Yang;Fang Shuhua;Huang Yunkai;Feng Ningjun

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本文提出了一种分区定子开关磁链记忆机(PS-SFMM)与三个磁铁,使方便的磁通控制,降低转换器的额定功率。同时,电机的转矩/磁体成本比得到了显著改善,而转矩能力没有太大的损害。三种永磁体,NdFeB,SmCo,和AlNiCo,混合,因此SmCo磁体可以很好地防止脆弱的AlNiCo永磁体的不可逆退磁。首先描述具有双PM(TPM)和三PM(TPM)的机器配置。之后,从磁滞曲线和简化磁路的角度揭示了性能改善的机理。此外,所提出的机器与三磁铁设计的电磁特性进行了研究,并与那些有DPM。最后,制造了两个PS-SFMM样机,并进行了测试,以验证理论分析。
This paper presents a partitioned stator switched flux memory machine (PS-SFMM) with triple magnets to enable expedient flux control with reduced converter power rating. Meanwhile, the torque/magnet cost ratio of the machine has been significantly improved without much compromise of the torque capability. Three kinds of permanent magnets (PMs), NdFeB, SmCo, and AlNiCo, are hybridized, and hence the irreversible demagnetization of vulnerable AlNiCo PMs can be well prevented by SmCo magnets. The machine configurations with dual PM (DPM) and triple PM (TPM) are described first. Thereafter, the performance improvement mechanism is unveiled and addressed in the perspective of hysteresis curves as well as simplified magnetic circuits. In addition, the electromagnetic characteristics of the proposed machine with triple-magnet design are investigated and compared with those having DPMs. Finally, two PS-SFMM prototypes with DPM and TPM are manufactured and tested to verify the theoretical analyses.
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