Design of high power density double‐stator permanent magnet synchronous motor

Guo, Liyan; Wang, Yangyang; Wang, Huimin; Zhang, Zhen

doi:10.1049/elp2.12275

Cited by 7 publications

(3 citation statements)

References 20 publications

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“…PMSM is increasingly applied to electric vehicles, robots, and marine propulsion due to high power density, wide speed range, strong anti-interference capability, and high efficiency [ 1 , 2 , 3 , 4 , 5 ]. Considering the rotor structure, motor size, and security in industrial application, the installation of speed/position sensor is not recommended, and consequently, sensorless control methods of PMSM have emerged [ 6 , 7 , 8 ].…”

Section: Introductionmentioning

confidence: 99%

Analysis and Compensation of Phase Current Measuring Error Caused by Sensing Resistor in PMSM Application

Cheng,

Hu,

et al. 2024

Sensors

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Field Oriented Control (FOC) effectively realizes independent control of flux linkage and torque, and is widely used in application of Permanent Magnet Synchronous Motor (PMSM). However, it is necessary to detect the phase current information of the motor to realize the current closed-loop control. The phase current detection method based on a sampling resistor will cause a measurement error due to the influence of parasitic parameters of the sampling resistor, which will lead to the decrease in PMSM control performance. This paper reveals the formation mechanism of the current sampling error caused by parasitic inductance and capacitance of the sampling resistor, and further confirms that the above error will lead to the fluctuation of the electromagnetic torque output by simulation. Moreover, we propose an approach for online observation and compensation of the current sampling error based on PI-type observer to suppresses the torque pulsation of PMSM. The phase current sampling error is estimated by the proportional and integral (PI) observer, and the deviation value of current sampling is obtained by low-pass filter (LPF). The above deviation value is further injected into the phase current close-loop for error compensation. The PI observer continues to work to keep the current sampling error close to zero. The simulation platform of Matlab/Simulink (Version: R2021b) is established to verify the effectiveness of online error observation and compensation. Further experiments also prove that the proposed method can effectively improve the torque fluctuation of the PMSM and enhance its control accuracy performance of rotation speed.

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Section: Introductionmentioning

confidence: 99%

Analysis and Compensation of Phase Current Measuring Error Caused by Sensing Resistor in PMSM Application

Cheng,

Hu,

et al. 2024

Sensors

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show abstract

“…The optimization and adjustment of permanent magnet structure parameters is a common method to suppress the cogging torque of PMSM, such as pole arc coefficient optimization [4], magnetic pole shifting [5,6], segmented pole [7], changing the rotor surface shape [8][9][10], etc. In addition, the step skew structure is another proven method of suppressing the cogging torque.…”

Section: Introductionmentioning

confidence: 99%

Research on cogging torque reduction method for permanent magnet synchronous motor accounting for the magnetic pole edge effect

Yan,

Cheng

et al. 2023

IET Electric Power Appl

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Due to the existence of the magnetic pole edge effect, the actual cogging torque of the existing segmented step skew motor does not reach the theoretical minimum. Thus, a method for suppressing cogging torque of permanent magnet synchronous motor considering the magnetic pole edge effect is proposed. The magnetic pole edge effect is creatively converted into the amplitude and phase offset of the cogging torque generated by each pole segment. On this basis, an optimization problem is constructed in which the fundamental component of cogging torque is zero and the total harmonics is minimum. The optimal magnetic pole length and skew angle parameters of each segment are obtained by solving the optimization problem quantitatively. The results can provide theoretical guidance for motor design, which can minimize the cogging torque of step skew structures. The effectiveness of the proposed method in weakening the cogging torque of the step skew motor is demonstrated by theoretical calculation, 3D finite element analysis, and experimental results.

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“…Permanent magnet synchronous motors (PMSMs) are widely used in servo systems owing to their high power density, high efficiency, and small inertia [1], [2], [3]. Hence, the control technology of these systems comprising PMSMs has become a research hotspot [4]. The PMSMs are characterized by timevarying parameters, strong coupling, and variable nonlinearity, and their control strategy directly influences the control effect.…”

Section: Introductionmentioning

confidence: 99%

Current Controller Based on Active Disturbance Rejection Control With Parameter Identification for PMSM Servo Systems

et al. 2023

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This study aimed to design an active disturbance rejection control (ADRC) with parameter identification for current control in permanent magnet synchronous motor (PMSM) servo systems. Given the nonlinear uncertainty of the PMSMs, a parameter identification method based on the consensus Kalman filter was designed to establish an approximate model of the motor, reduce the uncertainty of the current loop model, and utilize the improved ADRC algorithm to eliminate the influence of uncertainty, nonlinearity, and strong coupling of the current loop of the PMSM. Consequently, the current control precision of the inner loop improved. The control experiment results indicate that the proposed method is suitable for the current control of nonlinear and strongly-coupled servo systems.INDEX TERMS Consensus extended Kalman filter, permanent magnet synchronous motor, parameter identification, active disturbance rejection control (ADRC) current control, servo system.

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Design of high power density double‐stator permanent magnet synchronous motor

Cited by 7 publications

References 20 publications

Analysis and Compensation of Phase Current Measuring Error Caused by Sensing Resistor in PMSM Application

Analysis and Compensation of Phase Current Measuring Error Caused by Sensing Resistor in PMSM Application

Research on cogging torque reduction method for permanent magnet synchronous motor accounting for the magnetic pole edge effect

Current Controller Based on Active Disturbance Rejection Control With Parameter Identification for PMSM Servo Systems

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