An Improved Finite-Control-Set Model Predictive Flux Control for Asymmetrical Six-Phase PMSMs With a Novel Duty-Cycle Regulation Strategy

Yu, Feng; Liu, Xing; Zhu, Zhihao; Mao, Jingfeng

doi:10.1109/tec.2020.3031067

Cited by 23 publications

(14 citation statements)

References 25 publications

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“…However, the cost function includes a weighting factor, and there is a small reduction in the calculation burden. [36] proposes a MPTC based on the optimization of the duty cycle, which reduces the harmonic currents according to the V 3 method and the duty cycle optimization methods, and the computational burden is slightly increased compared with the traditional MPTC method. [37] greatly reduces the number of candidate vectors to 3 and cost function without weighting factor, and the calculation burden is reduced.…”

Section: Comparison Between Proposed Methods and Known Onesmentioning

confidence: 99%

“…The cost function of conventional MPTC is usually composed of electromagnetic torque and stator flux at k th and k+1th directly, and the purpose is to select the optimal switching state. The calculation of electromagnetic torque and stator flux at k+1th is introduced in [36]. The cost function can be expressed as:…”

Section: B Linear Discretization and Cost Functionmentioning

confidence: 99%

“…The proposed method reduces the computational burden. [36] introduces a novel predictive control method of duty cycle without weighting factor, which simplifies the cost function to only the stator flux component. Compared with [34], the current limit is eliminated, and the computational burden is also reduced.…”

Section: Introductionmentioning

confidence: 99%

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A Predictive Torque Control Method for Dual Three-Phase Permanent Magnet Synchronous Motor Without Weighting Factor

Zhang

Sun

et al. 2021

IEEE Access

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Section: Comparison Between Proposed Methods and Known Onesmentioning

confidence: 99%

Section: B Linear Discretization and Cost Functionmentioning

confidence: 99%

See 1 more Smart Citation

A Predictive Torque Control Method for Dual Three-Phase Permanent Magnet Synchronous Motor Without Weighting Factor

Zhang

Sun

et al. 2021

IEEE Access

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“…The drawback of this scheme is the non-negligibly additional computation burden due to the re-optimization process. For this reason, [23] proposes an improved duty-cycle optimization scheme for an ASPMSM drive. The scheme can avoid the additional computation burden to a large extent in a manner where the cost functions values directly determine the optimum set of voltage vectors.…”

Section: Introductionmentioning

confidence: 99%

“…The extra computation burden is merely caused by the duty-cycles' calculation. Meanwhile, in [23], 12 active and 1 zero virtual vectors are constructed to tackle the issue of harmonic currents elimination, therefore a low dc-link voltage utilization occurs.…”

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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Decoupled and compensated space vector pulse width modulation algorithm for dual‐channel PMSM with unbalanced power supplies

Yu,

Wang,

Wang

et al. 2023

Circuit Theory & Apps

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SummaryThis paper investigates an improved space vector pulse width modulation (SVPWM) and channel‐decoupled method for dual‐channel permanent magnet synchronous machine (PMSM) powered by unbalanced battery packs. Recently, individual power supplied voltage source inverter (VSI) is introduced considering insufficient power rating and unsafe driving in electrical vehicles (EVs). However, the issues of strong coupling and unbalanced power supplies exist between channels. Firstly, a modular topology is constructed to improve the reliability and security of the system. Secondly, the channel‐decoupled method is introduced based on multi‐dq rather than the conventional vector space decomposition (VSD) to eliminate coupling among multi‐channel. Thereafter, the variable distribution of voltage vectors (VVs) is corrected by the proposed SVPWM, where the switch can be operated appropriately. Finally, the comparative experiments are carried out focusing on decoupling and unbalanced power supplies, and the results present superior performance in terms of low torque fluctuation and balanced channel currents.

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An Improved Finite-Control-Set Model Predictive Flux Control for Asymmetrical Six-Phase PMSMs With a Novel Duty-Cycle Regulation Strategy

Cited by 23 publications

References 25 publications

A Predictive Torque Control Method for Dual Three-Phase Permanent Magnet Synchronous Motor Without Weighting Factor

A Predictive Torque Control Method for Dual Three-Phase Permanent Magnet Synchronous Motor Without Weighting Factor

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

Decoupled and compensated space vector pulse width modulation algorithm for dual‐channel PMSM with unbalanced power supplies

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