Control of a five-phase synchronous motors with third harmonic constrained injection

Fei, Marco; Zanasi, Roberto

doi:10.1109/icca.2011.6137950

Cited by 4 publications

(3 citation statements)

References 9 publications

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“…Inspired by the development of active noise reduction technology, a harmonic injecting method can improve motor performance [17,26]. Injecting superposed harmonics into the pole shape can reduce torque ripple of the motor during the design process [27].…”

Section: A Harmonic Superposed Model To Reduce Speed Ripplementioning

confidence: 99%

“…Injecting current into the quadrature axis is also used to compensate for torque ripple for the SVPWM control process of PMSM [16]. In [17], first and third harmonics were injected to maximize the torque of five-phase permanent magnet synchronous machines. In [18], the harmonic components of flux and current of a PMSM were compensated for by injecting the harmonic voltage, which counteracted and reduced the high-order harmonics of flux and distortion.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Analysis and Speed Ripple Mitigation of a Space Vector Pulse Width Modulation-Based Permanent Magnet Synchronous Motor with a Particle Swarm Optimization Algorithm

Liu¹,

Du²,

Liang³

2016

Energies

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A method is proposed for reducing speed ripple of permanent magnet synchronous motors (PMSMs) controlled by space vector pulse width modulation (SVPWM). A flux graph and mathematics are used to analyze the speed ripple characteristics of the PMSM. Analysis indicates that the 6P (P refers to pole pairs of the PMSM) time harmonic of rotor mechanical speed is the main harmonic component in the SVPWM control PMSM system. To reduce PMSM speed ripple, harmonics are superposed on a SVPWM reference signal. A particle swarm optimization (PSO) algorithm is proposed to determine the optimal phase and multiplier coefficient of the superposed harmonics. The results of a Fourier decomposition and an optimized simulation model verified the accuracy of the analysis as well as the effectiveness of the speed ripple reduction methods, respectively.

show abstract

Section: A Harmonic Superposed Model To Reduce Speed Ripplementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Analysis and Speed Ripple Mitigation of a Space Vector Pulse Width Modulation-Based Permanent Magnet Synchronous Motor with a Particle Swarm Optimization Algorithm

Liu¹,

Du²,

Liang³

2016

Energies

View full text Add to dashboard Cite

show abstract

“…In [18], under the constraint of identical amplitude of phase current, the optimum ratio of the third-harmonic current is scanned by simulation. In [19], considering the voltage and current constraints, the optimal current references minimizing the dissipation and maximizing the torque is obtained. In [20], the authors studied the optimal ratio of injected current under three different optimization objectives, namely, the minimum copper loss, the minimum phase current amplitude, the minimum loss (copper loss and iron loss).…”

Section: Introductionmentioning

confidence: 99%

Third-Harmonic Current Injection Control of Five-Phase Permanent-Magnet Synchronous Motor Based on Third-Harmonic Current Reference Online Identification

Zhao

et al. 2023

IEEE Access

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The ratio of torque to copper loss can be increased by injecting third-harmonic current into five-phase permanent-magnetic synchronous motor (PMSM). Accurate flux linkage information is indispensable in the process of calculating third-harmonic current reference corresponding to the maximum torque/copper loss ratio. In harsh working environments, the flux linkage will deviate from the initial measured value, resulting in the deviation between the third-harmonic current and the maximum torque/copper working point. Therefore, a third-harmonic current injection control strategy of five-phase PMSM based on third-harmonic current reference online identification is proposed in this paper. The key of this strategy is to transform the steady-state voltage equations into an equation containing only voltages and currents. The transformed equation has a characteristic that it is equal to 0 when the motor operates at the maximum torque/copper loss ratio working point. Meanwhile, an observer is designed to estimate the thirdharmonic current reference by using the characteristic. Finally, the observer is applied in third-harmonic current injection control of five-phase PMSM. Compared with previous methods, the proposed strategy is simple, no need of flux linkage information and not affected by the change of flux linkage. The experimental results demonstrate the robustness of the proposed strategy.

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Research on the vector control strategy of five-phase permanent-magnet synchronous machine based on third-harmonic current injection

Sui

Zheng

Fan

et al. 2017

2017 IEEE International Electric Machines and Drives Conference (IEMDC)

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Control of a five-phase synchronous motors with third harmonic constrained injection

Cited by 4 publications

References 9 publications

Analysis and Speed Ripple Mitigation of a Space Vector Pulse Width Modulation-Based Permanent Magnet Synchronous Motor with a Particle Swarm Optimization Algorithm

Analysis and Speed Ripple Mitigation of a Space Vector Pulse Width Modulation-Based Permanent Magnet Synchronous Motor with a Particle Swarm Optimization Algorithm

Third-Harmonic Current Injection Control of Five-Phase Permanent-Magnet Synchronous Motor Based on Third-Harmonic Current Reference Online Identification

Research on the vector control strategy of five-phase permanent-magnet synchronous machine based on third-harmonic current injection

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