Carrier frequency harmonic suppression in dual three‐phase permanent magnet synchronous motor system

Zheng, Boyuan; Xu, Yang; Wang, Guan; Yu, Guodong; Yan, Hao; Wang, Minghui; Zou, Jibin

doi:10.1049/iet-epa.2019.0054

Cited by 6 publications

(10 citation statements)

References 28 publications

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“…Figure 11 illustrates the implemented PMSM control and modulation strategy. From the control strategy point of view, the PMSM is driven considering the traditional FOC [40]. In the modulation stage, the con- ventional single-carrier PWM method, the tri-carrier PWM technique with fixed carrier displacement angles [35] as well as the proposed sampling-time adaptive multi-carrier PWM technique have been implemented in order to evaluate the obtained CMV of the power system.…”

Section: Resultsmentioning

confidence: 99%

Common-Mode Voltage Mitigation Technique in Motor Drive Applications by Applying a Sampling-Time Adaptive Multi-Carrier PWM Method

et al. 2021

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Common-mode voltage (CMV) in electric drives causes leakage current causing consequently EMI problems, loss and reduction of their components' lifetime. Several solutions have been proposed which usually lead to higher cost because additional components are used. This paper is focused on the mitigation of the resulting CMV produced by the operation of the VSD by means of a specifically designed PWM method. The proposal is based on the analysis of the CMV harmonic spectrum using the Fourier analysis. The CMV mitigation is achieved by modifying the time-shift displacement of the carriers each sampling time considering a multi-carrier PWM technique. The resulting method has been evaluated in a down scaled experimental setup and it is easily implementable on mostly off-the-shelf mid-range microcontroller control platforms.

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Section: Resultsmentioning

confidence: 99%

Common-Mode Voltage Mitigation Technique in Motor Drive Applications by Applying a Sampling-Time Adaptive Multi-Carrier PWM Method

et al. 2021

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“…Besides, due to the existence of lowimpedance subspace in the harmonic subspace in DTP-PMSM system, certain orders of the harmonic voltage would generate much larger current harmonics compared with the three-phase ones. The negative effects of high frequency harmonics are more pronounced in the DTP-PMSM systems [11].…”

Section: Introductionmentioning

confidence: 99%

“…Though the research on the high frequency current harmonic suppression in DTP-PMSM system is not investigated widely [11] [12], plenty of research on the high frequency harmonic in servo systems or power electronic applications have been investigated to reduce its negative effect. In [13], the amplitude and frequency of high and low frequency harmonics introduced by PWM techniques have been analyzed and collated.…”

Section: Introductionmentioning

confidence: 99%

High-Frequency Current Harmonic Analysis and Suppression in Dual Three-Phase PMSMs With Advanced Carrier Phase-Shift PWM

Zheng,

Zou,

et al. 2024

IEEE Trans. Power Electron.

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Carrier frequency current harmonic peaks induced by Pulse Width Modulation (PWM) in motion control systems will cause high-frequency torque ripple, efficiency decrease and EMI problems. It is proved in this article that carrier-frequency harmonic current components in dual three-phase permanent magnet synchronous motor (DTP-PMSMs) systems exhibit a different distribution and are more severe compared to the threephase ones due to the existence of the low-impedance harmonic subspace, thereby limiting the further application of DTP-PMSMs. To address this issue, this paper proposes an advanced carrier phase shift modulation strategy. Firstly, by introducing a π/2 phase shift between two PWM modules, the dominating 1st carrier frequency harmonic current components in z1-z2 subspace are halved. The high-frequency torque ripple, located at 2nd carrier frequency, is also suppressed. Periodic Frequency Modulation (PFM) is utilized in the proposed strategy to further suppress the high-frequency harmonic current components in both α-β and z1-z2 subspaces. The effectiveness of the proposed strategy is demonstrated theoretically and verified by simulation and experiments. DC-link current can also benefit from the proposed strategy. Compared with conventional SVPWM and random SVPWM, the proposed strategy has a better harmonic suppression effect without inducing distortion.

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“…Figure11shows the PMSM control and modulation strategies implemented in the experimental setup. In the control strategy, the PMSM is driven by a speed and current double closed control loop[37]. In the modulation stage, the three PWM methods ([φ a , φ b , φ c ] equal to [0, 0, 0] • , [0, 120, 240] • and [0, φ b opt , φ c opt ] • ) are tested to check the influence on the VSD CMV, the phase currents as well as the induced shaft voltage.…”

mentioning

confidence: 99%

Common-Mode Voltage Harmonic Reduction in Variable Speed Drives Applying a Variable-Angle Carrier Phase-Displacement PWM Method

et al. 2021

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Electric variable speed drives (VSD) have been replacing mechanic and hydraulic systems in many sectors of industry and transportation because of their better performance and reduced cost. However, the electric systems still face the issue of being considered less reliable than the mechanical ones. For this reason, researchers have been actively investigating effective ways to increase the reliability of such systems. This paper is focused on the analysis of the common-mode voltage (CMV) generated by the operation of the VSDs which directly affects to the lifetime and reliability of the complete system. The method is based on the mathematical description of the harmonic spectrum of the CMV depending on the PWM method implementation. A generalized PWM method where the carriers present a variable phase-displacement is developed. As a result of the presented analysis, the CMV reduction is achieved by applying the PWM method with optimal carrier phase-displacement angles without any external component and/or passive filtering technique. The optimal values of the carrier phase-displacement angles are obtained considering the minimization of the CMV total harmonic distortion. The resulting method is easily implementable on mostly off-the-shelf mid-range micro-controller control platforms. The strategy has been evaluated in a scaled-down experimental setup proving its good performance.

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Carrier frequency harmonic suppression in dual three‐phase permanent magnet synchronous motor system

Cited by 6 publications

References 28 publications

Common-Mode Voltage Mitigation Technique in Motor Drive Applications by Applying a Sampling-Time Adaptive Multi-Carrier PWM Method

Common-Mode Voltage Mitigation Technique in Motor Drive Applications by Applying a Sampling-Time Adaptive Multi-Carrier PWM Method

High-Frequency Current Harmonic Analysis and Suppression in Dual Three-Phase PMSMs With Advanced Carrier Phase-Shift PWM

Common-Mode Voltage Harmonic Reduction in Variable Speed Drives Applying a Variable-Angle Carrier Phase-Displacement PWM Method

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