Sinusoidal periodic carrier frequency modulation in reducing electromagnetic noise of permanent magnet synchronous motor

Xu, Yang; Yuan, Qing; Zou, Jinbin; Yao, Yanmei; Zhu, Guangqi

doi:10.1049/iet-epa.2012.0206

Cited by 21 publications

(16 citation statements)

References 30 publications

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“…Considering the actual control environment, in which the motor windings are connected to the inverter and excited by the voltage source, the space vector pulse width modulation (SVPWM) technique is thus employed among various modulation techniques, due to its superior performance in bus voltage utilization and overall efficiency [8][9][10]. Current harmonics generated by pulse width modulation (PWM) cannot be ignored when using an SVPWM control strategy because it leads to the increase of the losses, torque ripple, vibration, and noises [11][12][13][14][15][16][17]. In particular, in [11,12], it is shown that the eddy-current loss of the magnets increases significantly, caused by high-order carrier harmonics of the inverter, bringing the risk of irreversible demagnetization of the magnets.…”

Section: Introductionmentioning

confidence: 99%

Study of Excitation Characteristics of Traction Machine/Drive Systems

2019

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In order to accurately evaluate the performance of a traction machine/drive system, it is necessary to have an accurate excitation source which considers current harmonics. In this paper, four machine/drive systems with different excitation sources have been modeled, simulated, and studied to evaluate the effects on permanent magnet synchronous machines (PMSMs) from different perspectives. In Model I, the excitation is an ideal sinusoidal current source with no harmonics. Model II is excited by an ideal sinusoidal voltage source regardless of the pulse width modification’s (PWM’s) influence. Model III takes into account the influence of current harmonics under space vector pulse width modulation (SVPWM) control. Model IV is based on the equivalent circuit extraction (ECE) model (a look-up table motor model). We simulate these four models and study the characteristics of the excitation sources, based on the observations of current harmonics, torque, electromagnetic force, computation time, and efficiency. Experiments are also conducted to show that Model III allows the most precise study of the considered system. Model IV is a good substitution, providing similar results with a shorter running time.

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Section: Introductionmentioning

confidence: 99%

Study of Excitation Characteristics of Traction Machine/Drive Systems

2019

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“…Power converters for electrical energy conversion have been widely used in the renewable energy applications such as motor control, electric vehicle, energy storage, high-power-factor rectifiers, and compensators for reactive and harmonic currents to the grid [5][6][7][8][9][10][11][12][13][14][15]. In these systems, at least two current sensors are employed to implement the closed-loop current control and overcurrent protection.…”

Section: Introductionmentioning

confidence: 99%

“…. , 7 ) for further analysis. First of all, the proposed phase current reconstruction method in this paper is available when the currents are sampled during the ZVVs.…”

Section: Introductionmentioning

confidence: 99%

A Phase Current Reconstruction Approach for Three-Phase Permanent-Magnet Synchronous Motor Drive

Yan

Zou

2016

Energies

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Three-phase permanent-magnet synchronous motors (PMSMs) are widely used in renewable energy applications such as wind power generation, tidal energy and electric vehicles owing to their merits such as high efficiency, high precision and high reliability. To reduce the cost and volume of the drive system, techniques of reconstructing three-phase current using a single current sensor have been reported for three-phase alternating current (AC) control system using the power converts. In existing studies, the reconstruction precision is largely influenced by reconstructing dead zones on the Space Vector Pulse Width Modulation (SVPWM) plane, which requires other algorithms to compensate either by modifying PWM modulation or by phase-shifting of the PWM signal. In this paper, a novel extended phase current reconstruction approach for PMSM drive is proposed. Six novel installation positions are obtained by analyzing the sampling results of the current paths between each two power switches. By arranging the single current sensor at these positions, the single current sensor is sampled during zero voltage vectors (ZVV) without modifying the PWM signals. This proposed method can reconstruct the three-phase currents without any complex algorithms and is available in the sector boundary region and low modulation region. Finally, this method is validated by experiments.

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“…In case of constant-frequency PWM, these noise components are concentrated in narrow bands around integral multiples of the carrier frequency, which is irritating to the human ear [14]. Hence numerous variable-frequency or random-frequency PWM methods have been proposed which ensure that the acoustic noise is spread over a wide range of frequencies [15]- [17]. However, these methods might not lead to reduction in the overall noise emitted; the total harmonic distortion (THD) in the line current could also be increased [18], [19].…”

Section: Introductionmentioning

confidence: 99%

Acoustic Noise Characterization of Space Vector Modulated Induction Motor Drives – An Experimental Approach

Binojkumar

Saritha

Narayanan

2014

IEEE Trans. Ind. Electron.

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This paper presents an experimental procedure to determine the acoustic and vibration behavior of an inverter fed induction motor based on measurements of current spectrum, acoustic noise spectrum, overall noise in dB, and overall Aweighted noise in dBA. Measurements are carried out on spacevector modulated 8-hp and 3-hp induction motor drives over a range of carrier frequencies at different modulation frequencies.The experimental data helps to distinguish between regions of high and low acoustic noise levels. The measurements also bring out the impact of carrier frequency on the acoustic noise. The sensitivity of the overall noise to carrier frequency is indicative of the relative dominance of the high-frequency electromagnetic noise over mechanical and aerodynamic components of noise. Based on the measured current and acoustic noise spectra, the ratio of dynamic deflection on the stator surface to the product of fundamental and harmonic current amplitudes is obtained at each operating point. The variation of this ratio of deflection to current product with carrier frequency indicates the resonant frequency clearly and also gives a measure of the amplification of vibration at frequencies close to the resonant frequency. This ratio is useful to predict the magnitude of acoustic noise corresponding to significant time-harmonic currents flowing in the stator winding.

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Sinusoidal periodic carrier frequency modulation in reducing electromagnetic noise of permanent magnet synchronous motor

Cited by 21 publications

References 30 publications

Study of Excitation Characteristics of Traction Machine/Drive Systems

Study of Excitation Characteristics of Traction Machine/Drive Systems

A Phase Current Reconstruction Approach for Three-Phase Permanent-Magnet Synchronous Motor Drive

Acoustic Noise Characterization of Space Vector Modulated Induction Motor Drives – An Experimental Approach

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Sinusoidal periodic carrier frequency modulation in reducing electromagnetic noise of permanent magnet synchronous motor

Cited by 21 publications

References 30 publications

Study of Excitation Characteristics of Traction Machine/Drive Systems

Study of Excitation Characteristics of Traction Machine/Drive Systems

A Phase Current Reconstruction Approach for Three-Phase Permanent-Magnet Synchronous Motor Drive

Acoustic Noise Characterization of Space Vector Modulated Induction Motor Drives &#x2013; An Experimental Approach

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Acoustic Noise Characterization of Space Vector Modulated Induction Motor Drives – An Experimental Approach