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fault-tolerant stator flux oriented decoupling control for dual three-phase permanent magnet motor without diagnosis and reconfiguration

引用

Science China(Technological Sciences) 2023年第11期66卷 3206-3218页

作者： HUANG LinSen ZHAO WenXiang TAO Tao CUI Jia ZHANG Qiang School of Electrical and Information Engineering National Center for International Research on Structural Health Management of Critical ComponentsJiangsu UniversityZhenjiang 212013China

In this paper,the fault-tolerant capability of the existing stator-flux-oriented decoupling control(SFOC)for the DTP-PM motor is investigated,and a simple fault-tolerant SFOC is further designed to enhance fault ***,the mathematical model of the DTP-PM motor in the stator-flux-oriented rotating coordinate system is *** SFOC is proposed to guarantee healthy operation performance,considering torque,flux linkage,and harmonic ***,the coupling relationship under open-phase conditions is *** assessed result shows that the coupling relationship between the harmonic and fundamental components results in conflicts and poor post-fault ***,the proposed SFOC includes an automatic deactivation module to detect conflicts with a variable *** conflicted harmonic current controllers can be excluded ***,fault-tolerant control can be remedied without diagnosing the specific fault scenario,and excellent faulttolerant capability can be ***,experiments on a DTP-PM motor are carried out to verify the feasibility and effectiveness of the proposed strategy.

关键词： dual three-phase motor stator flux orientation decoupling control fault-tolerant control open-phase fault

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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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