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Electromagnetic Performance Prediction for the Symmetrical dual three-phase Surface-mounted PMSM under Open-phase Faults Based on Accurate Subdomain Model

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CES Transactions on Electrical Machines and Systems 2022年第4期6卷 422-437页

作者： Zhe Liang Deliang Liang Peng Kou Shaofeng Jia IEEE the Xi'an Jiaotong University Xi’an710049China

The paper presents an accurate analytical subdomain model for predicting the electromagnetic performance in the symmetrical dual three-phase surface-mounted permanent magnet synchronous machine(PMSM)under open-phase faulty *** model derivations are extended from previous accurate subdomain models accounting for slotting *** with most conventional subdomain models for traditional three-phase machines with nonoverlapping winding arrangement,the subdomain model proposed in this paper applied for the 24-slot/4-pole dual three-phase machine with symmetrical overlapping winding *** order to investigate the postfault electromagnetic performance,the reconfigured phase currents and then current density distribution in stator slots under different open-circuit conditions are *** to the developed model and postfault current density distribution,the steady-state electromagnetic performance,such as the electromagnetic torque and unbalanced magnetic force,under open-circuit faulty conditions are *** validation purposes,finite element analysis(FEA)is employed to validate the analytical *** result indicate that the postfault electromagnet performance can be accurately predicted by the proposed subdomain model,which is in good agreement with FEA results.

关键词： dual three-phase Permanent magnet synchronous machine Subdomain model Electromagnetic torque Unbalanced magnetic force Open-phase fault

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Zero-sequence Current Suppressing Strategy for dual three-phase Permanent Magnet Synchronous Machines Connected with Single Neutral Point

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CES Transactions on Electrical Machines and Systems 2022年第4期6卷 465-472页

作者： Zongwang Li Yuxuan Du Jinghua Ji Tao Tao Wenxiang Zhao School of Electrical and Information Engineering Jiangsu UniversityZhenjiang 212013China IEEE

dual three-phase permanent-magnet synchronous machines(DTP-PMSM)connected with a single neutral point provide a loop for zero-sequence current(ZSC).This paper proposes a novel space vector pulse width modulation(SVPWM)strategy to suppress the *** vectors are selected as basic voltage vectors in one switching *** fundamental and harmonic planes and the zero-sequence plane are taken into consideration to synthesis the reference voltage *** suppress the ZSC,a non-zero zero-sequence voltage(ZSV)is generated to compensate the third harmonic *** than triangular carrier modulation,the sawtooth carrier modulation strategy is used to generate asymmetric PWM *** modulation range is investigated to explore the variation of modulation range caused by considering the zero-sequence *** the proposed method,the ZSC can be considerably *** simulated and experimental results are presented to validate the effectiveness of the proposed modulation strategy.

关键词： Zero-sequence current a single neutral point dual three-phase permanent-magnet synchronous machine third harmonic back-EMF

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维普期刊数据库

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