Investigation of current-ripple for three-phase four-wire inverter-fed motors

Zhao, Zhao; Leidhold, Roberto

doi:10.1016/j.egyr.2020.11.234

Cited by 4 publications

(3 citation statements)

References 8 publications

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“…Permanent magnet synchronous motor (PMSM) is a rotor based on permanent magnets, 1 which has advantages such as simple structure, small volume, high torque density, 2 high power density, high efficiency, and good reliability 3 . PMSM is a new type of permanent magnet material, and its application fields are becoming increasingly widespread 4 .…”

Section: Introductionmentioning

confidence: 99%

Current segmentation control method of permanent magnet motor based on duty cycle modulation

Lan

2023

Adv Control Appl

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In the control system of permanent magnet synchronous motor, in order to improve real‐time performance and computational complexity, a new method of implementing segmented current control of permanent magnet motor using duty cycle modulation is proposed. The term plane is divided into three sectors through three‐phase voltage vector, and current prediction iteration is performed to obtain the relevant duty cycle, and the periodic modulation of this method (DM‐MPCC) is verified by experiments and the traditional DV‐MPCC (DV‐MPCC), the method is repeated more than 150 times, the time required for this method is 2.863 s, saving 52.073% of the computing time, while the modulation duty of DM‐MPCC It is also more stable than the waveform, and the current THD = 2.986% DM‐MPCC is much lower than the conventional method. DM‐MPCC has less pulsation on the dq axis at full speed than DV‐MPCC. The results show that the method has a faster operation speed and better real‐time performance, which shows the superiority of this method in practical applications.

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Section: Introductionmentioning

confidence: 99%

Current segmentation control method of permanent magnet motor based on duty cycle modulation

Lan

2023

Adv Control Appl

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“…The PMSM drive system with four legs has attracted much attention [15][16][17][18][19][20][21][22][23]. In [15], a fault tolerant strategy is proposed for the three-phase four legs drive system with open phase fault.…”

Section: Introductionmentioning

confidence: 99%

“…In [16], a feedforward element is designed to compensate the unbalance voltage, which result from the open phase fault in interior PMSM. In [17], the resonant controller is designed applied to track the dq axis referenced current for the three-phase four legs drive system with open phase fault, and the voltage demand can be compensated adaptively by applying these control methods. In [18], a new PMSM model was established based on the new reference frame transformation for fault tolerance.…”

Section: Introductionmentioning

confidence: 99%

A Fault-Tolerant Control Method for a PMSM Servo Drive System with a Four-Leg Inverter

Cui,

Zheng,

et al. 2023

Electronics

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In this paper, a fault tolerant control method is proposed for a permeant magnet synchronous motor (PMSM) servo drive system with four leg inverters to cope with the open phase fault. As one of common faults in the motor drive system, the open phase fault will degrade the control performance and efficiency. Even serious damage is caused in some extreme cases. Hence, it is meaningful to realize the fault tolerance of the drive system with open phase fault. The proposed method includes three parts: a torque-producing current calculator, phase voltage determination and voltage distributor. The torque-producing current calculator is designed by taking the third harmonic flux into consideration to calculate the torque-producing current. In the phase voltage determination, it is proved that the third harmonic flux has no influence on the line voltage equation. For healthy operation and fault operation, the voltage requirements in remaining healthy phases are determined based on the line voltages. Finally, two voltage distributors are designed to distributor the phase voltages into remaining inverter leg. The main difference of two voltage distributors is the polarity of two remaining voltage. Compared to the conventional method, the proposed method can reduce the torque ripple under a postfault condition. In addition, the controller structure will not be changed under a pre-fault and postfault condition. The proposed method has been validated by simulated results and experimental results.

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On the estimation error of position sensorless control of PM synchronous motors

Zhao

Leidhold

2022

Energy Reports

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Investigation of current-ripple for three-phase four-wire inverter-fed motors

Cited by 4 publications

References 8 publications

Current segmentation control method of permanent magnet motor based on duty cycle modulation

Current segmentation control method of permanent magnet motor based on duty cycle modulation

A Fault-Tolerant Control Method for a PMSM Servo Drive System with a Four-Leg Inverter

On the estimation error of position sensorless control of PM synchronous motors

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