Flux-Weakening Control Combined With Magnetization State Manipulation of Hybrid Permanent Magnet Axial Field Flux-Switching Memory Machine

Yang, Gongde; Lin, Mingyao; Li, Nian; Tan, Guangying; Zhang, Beibei

doi:10.1109/tec.2018.2864556

Cited by 13 publications

(12 citation statements)

References 20 publications

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“…In the d-q coordinate system, the excitation and torque components of the stator current can be decoupled to reflect the internal operation mechanism of the PMSM [20]. Therefore, the mathematical model of the MCS-PMSM is established in the d-q coordinate system.…”

Section: B Mathematical Model Of the Mcs-pmsmmentioning

confidence: 99%

“…The electromagnetic power P em of the whole machine can be expressed as (20) According to the mathematical model of the MCS-PMSM, when k i is different, the angle occupied by each module in space and the parameters such as the inductance, resistance and flux linkage of each module are also different, as are the output torque and electromagnetic power distribution of each module. For the whole machine, the distribution of each operating module on the circumference is asymmetric, so the whole machine can produce undesirable vibration, noise and output torque ripple, which affects the steady-state operation performance of the machine.…”

Section: B Mathematical Model Of the Mcs-pmsmmentioning

confidence: 99%

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Analysis of a Fault-Tolerant Module-Combined Stator Permanent Magnet Synchronous Machine

Zhang

Gan

2020

IEEE Access

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To solve the problems of large-size machining and complex control of fault-tolerant permanent magnet machines, a module-combined stator permanent magnet synchronous machine is proposed in this paper. The winding of the module-combined stator has two forms: large and small spans. The independent power supply of each module is adopted to decouple the electricity between each module, which enhances the manufacturing flexibility and the fault-tolerant ability of the motor. A mathematical model of the module-combined stator permanent magnet synchronous machine is established, and the design method of the machine is summarized. Then the analytical formula of the radial force acting on the stator under asymmetric operation is deduced. In addition, the torque-angle characteristics of the machine and the factors affecting the radial force are studied. Finally, the machine is prototyped, and both simulation and experiment are used verify the rationality of the proposed design.INDEX TERMS Module-combined stator, asymmetric operation, torque-angle characteristic, fault-tolerant.

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Section: B Mathematical Model Of the Mcs-pmsmmentioning

confidence: 99%

Section: B Mathematical Model Of the Mcs-pmsmmentioning

confidence: 99%

Analysis of a Fault-Tolerant Module-Combined Stator Permanent Magnet Synchronous Machine

Zhang

Gan

2020

IEEE Access

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“…Zhao et al implemented vector control of a field-excited flux-switching drive to maximize its output torque by using particle swarm optimization [11]. Yang et al studied flux-weakening control of a hybrid flux-switching motor to increase its output torque and high-speed operating range [12]. Wu et al investigated field-oriented control and direct torque control for a five-phase flux-switching motor drive system with a fault-tolerant capability to improve its dynamics during faulty conditions [13].…”

Section: Introductionmentioning

confidence: 99%

“…Wang et al investigated a position-sensorless control method at low speed for PMSM based on high-frequency signal injection into a rotating reference frame [17]. Compared to previously published papers [9][10][11][12][13][14][15][16][17], this paper is the first to propose predictive controllers for a sensorless field-excited flux-switching motor drive system. To the authors' best knowledge, this idea is an original idea.…”

Section: Introductionmentioning

confidence: 99%

Design and Implementation of Position Sensorless Field-Excited Flux-Switching Motor Drive Systems

Liu

Mubarok

2020

Energies

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Field-excited flux-switching motor drive systems have become more and more popular due to their robustness and lack of need for a permanent magnet. Three different types of predictive controllers, including a single-step predictive speed controller, a multi-step predictive speed controller, and a predictive current controller are proposed for sensorless flux-switching motor drive systems in this paper. By using a 1 kHz high-frequency sinusoidal voltage injected into the field winding and by measuring the a-b-c armature currents in the stator, an estimated rotor position that is near 2 electrical degrees is developed. To improve the dynamic responses of the field-excited flux-switching motor drive system, predictive controllers are employed. Experimental results demonstrate the proposed predictive controllers have better performance than PI controllers, including transient, load disturbance, and tracking responses. In addition, the adjustable speed range of the proposed drive system is from 4 r/min to 1500 r/min. A digital signal processor, TMS-320F-2808, is used as a control center to carry out the rotor position estimation and the predictive control algorithms. Measured results can validate the theoretical analysis to illustrate the practicability and correctness of the proposed method.

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“…A stepwise magnetization control strategy and the influences of the design parameters on the demagnetization behavior for a switched flux memory machine (SFMM) were reported in [9][10]. A speedregion-based FW control combined with an MS manipulation method for a hybrid PM axial field flux-switching memory machine was presented, and an adaptive observer was utilized to mitigate the flux linkage estimation error in [24].…”

Section: Introductionmentioning

confidence: 99%

Second-Order Sliding Mode-Based Direct Torque Control of Variable-Flux Memory Machine

et al. 2020

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The variable-flux memory machine (VFMM) exhibits high efficiency over a wide speed range because its airgap magnetic flux can easily be regulated by varying the magnetization state (MS) of the employed low coercivity force permanent magnets. This paper proposes a second-order sliding mode (SM)based direct torque control (DTC) strategy for the VFMM, which features a relatively low computational complexity and less dependence on machine parameters. The operating principle and mathematical model of the VFMM are first described and established. On this basis, a novel control scheme combining the DTC strategy with MS manipulation is proposed, in which the machine is controlled by utilizing the DTC strategy incorporating the i d = 0 condition, while the MS manipulation is implemented by energizing reference stator flux linkage pulses. A super-twisting second-order SM controller is subsequently developed to achieve strong robustness. The developed control structure avoids a complicated decoupling algorithm and is simpler than that of the conventional field-oriented control (FOC) method. Finally, the effectiveness of the proposed control scheme is validated by simulation and experimental results. INDEX TERMS Direct torque control, magnetization state, strong robustness, super-twisting sliding mode control, variable-flux memory machine.

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Flux-Weakening Control Combined With Magnetization State Manipulation of Hybrid Permanent Magnet Axial Field Flux-Switching Memory Machine

Cited by 13 publications

References 20 publications

Analysis of a Fault-Tolerant Module-Combined Stator Permanent Magnet Synchronous Machine

Analysis of a Fault-Tolerant Module-Combined Stator Permanent Magnet Synchronous Machine

Design and Implementation of Position Sensorless Field-Excited Flux-Switching Motor Drive Systems

Second-Order Sliding Mode-Based Direct Torque Control of Variable-Flux Memory Machine

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