A Novel Modulation-Based Current Harmonic Control Strategy for PMSM Considering Current Measurement Error and Asymmetric Impedance

Lin, Hao; Liao, Yong; Yan, Luocheng; Li, Fu; Feng, Yixiao

doi:10.1109/access.2022.3201134

Cited by 8 publications

(2 citation statements)

References 28 publications

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“…Permanent magnet synchronous machines (PMSMs) have been widely used in many industrial applications, owing to their high efficiency and high power-density [1], [2]. Compared to three-phase ones, asymmetrical six-phase PMSMs (ASPMSMs) take advantages of lower torque pulsation, lower rating per-phase and good fault-tolerant capability [3], [4], [5].…”

Section: Introductionmentioning

confidence: 99%

A Novel Model Predictive Current Control for Asymmetrical Six-Phase PMSM Drives With an Optimum Duty-Cycle Calculation Scheme

Zhang¹,

2023

IEEE Access

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This paper presents a novel model predictive current control (MPCC) with an optimum duty-cycle calculation scheme for asymmetrical six-phase permanent magnet synchronous machine (ASPMSM) drives. The proposed method takes advantages of the steady-state performance improvement and the weighting factor elimination. Both merits are owing to the optimum duty-cycle calculation scheme. On the one hand, for the α-β subspace, the optimal voltage vector set (VVS) is chosen from twelve ones and the corresponding optimal duty cycles are calculated using the proposed scheme. On the other hand, for the x-y subspace, the VVS can be determined according to that of α-β subspace and the optimal duty cycles are deduced using the same scheme. The voltage vector references in two subspaces are then obtained, and they are transformed to six-phase voltages for controlling the six-phase inverter. The proposed method is verified by experimental results based on a 2 kW ASPMSM prototype.INDEX TERMS Model predictive current control (MPCC), asymmetrical six-phase permanent magnet synchronous machine (ASPMSM), steady-state performance, weighting factor, duty-cycle calculation.

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Section: Introductionmentioning

confidence: 99%

A Novel Model Predictive Current Control for Asymmetrical Six-Phase PMSM Drives With an Optimum Duty-Cycle Calculation Scheme

Zhang¹,

2023

IEEE Access

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“…In recent years, the fast dynamic response, high power, and high reliability have been the main development directions for the AC motor frequency conversion systems [ 1 ]. Compared with the three-phase PMSM, the multiphase motor provides greater freedom, greater redundancy, less torque pulsation, fewer harmonic components in the flux, and less noise [ 2 , 3 ].…”

Section: Introductionmentioning

confidence: 99%

Fault-tolerant control strategy of six-phase permanent magnet synchronous motor based on deadbeat current prediction

et al. 2023

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The fault-tolerant control after phase loss is crucial in the studies of the six-phase permanent magnet synchronous motor (PMSM), and the one phase loss is the most frequent phase loss fault. To improve the system instability caused by nonlinear and time-varying perturbations of inductance parameters in a double-Y phase shifted 30° six-phase PMSM, an improved deadbeat predictive current fault-tolerant control (DPC-FTC) method is proposed in this study. The transformation matrix after single-phase open-phase is first reduced and reconstructed, and the reduced-dimensional voltage equation is derived. Based on this equation, the deadbeat current predictive control is then used to predict the expected voltage using the current feedback value and the reference value, so as to shorten the response time and improve the overall control effect. The voltage equation after parameter perturbation is rewritten, and the current discrete transfer function under constant expected voltage before and after parameter perturbation is calculated. Afterwards, to further improve the low stability of fault-tolerant control after phase loss, which is caused by the inductance parameter perturbation of the control system, the weight coefficient is introduced in order to enhance the deadbeat predictive current control so that it splits and optimizes the direct-quadrature axis current. The stability of the system is then analyzed. By changing the weight coefficient, the fault-tolerant control system has a wider stable working range. Finally, the simulation model and experimental platform are completed. The results show that the improved DPC-FTC method improves the permissible inductor parameter uptake range by a factor of 1/β, reduces the current static difference by 32.05% and 46.02% when the inductor parameter is mismatched by a factor of 2, reduces the current oscillation and effectively reduces the sensitivity of system stability to inductor parameter uptake.

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Active power filter based on DS-SDFT harmonic detection method with MPC

Liu,

Li,

Yang

et al. 2024

Electr Eng

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A Novel Modulation-Based Current Harmonic Control Strategy for PMSM Considering Current Measurement Error and Asymmetric Impedance

Cited by 8 publications

References 28 publications

A Novel Model Predictive Current Control for Asymmetrical Six-Phase PMSM Drives With an Optimum Duty-Cycle Calculation Scheme

A Novel Model Predictive Current Control for Asymmetrical Six-Phase PMSM Drives With an Optimum Duty-Cycle Calculation Scheme

Fault-tolerant control strategy of six-phase permanent magnet synchronous motor based on deadbeat current prediction

Active power filter based on DS-SDFT harmonic detection method with MPC

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