Fully digital, vector-controlled PWM VSI-fed AC drives with an inverter dead-time compensation strategy

Sukegawa, Takashi; Kamiyama, K.; Mizuno, Katsunori; Matsui, Takayuki; Okuyama, T.

doi:10.1109/28.81841

Cited by 174 publications

(52 citation statements)

References 5 publications

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“…As mentioned above, dead-time voltage errors can be represented as (11). Therefore, by applying the Fourier series expansion of the rectangular waveform, the averaged dead-time errors in the U phase can be represented as follows:…”

Section: Theoretical Harmonics Of Averaged Dead-time Voltage Errormentioning

confidence: 99%

“…To compensate for dead-time voltage errors, feedforward compensation is widely used (11)- (13) . Sukegawa et al proposed feedforward compensation in Park coordinates (11) . In this paper, to explain the torque ripple clearly, feedforward compensation in Park coordinates is discussed.…”

Section: Distortion Index Of Torque Taking Feedforward Compensation Imentioning

confidence: 99%

“…Mainly, these can be labeled as "Feedforward Compensation" and "Feedback Compensation." In feedforward dead-time compensation (11)- (13) , it is necessary to obtain accurate polarity information of the current and accurate values of voltage errors. The widely used feedback dead-time compensation approach-for example, by using a disturbance observer (DOB) (14)- (16) -does not require this information.…”

Section: Introductionmentioning

confidence: 99%

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Torque Ripple Suppression Method with Multilevel Inverter and Feedforward Dead-Time Compensation

2016

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This paper discusses the suppression of torque ripples in motor drives. Current ripples caused by pulse-width modulation with frequencies of 10-100 kHz can be reduced by using high-frequency switching. On the other hand, current ripples caused by dead-times with 6kth-order ripples of fundamental frequencies increase with the switching frequency. Therefore, there is a trade-off relationship between the two ripples. To compensate for dead-times, feedforward compensation is widely used. However, effective compensation cannot be achieved if the feedforward compensation values contain modeling errors. This paper therefore reveals that the robustness of the output torque against compensation errors can be improved by using multilevel inverters. The proposed method is validated through simulations and experimental results.

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Section: Theoretical Harmonics Of Averaged Dead-time Voltage Errormentioning

confidence: 99%

Section: Distortion Index Of Torque Taking Feedforward Compensation Imentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Torque Ripple Suppression Method with Multilevel Inverter and Feedforward Dead-Time Compensation

2016

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“…The lost voltage average value calculation [2,3], the pulse width modulation(PWM) pulse based technique [6]. voltage feed forward method [7][8][9][10][11][12], and the support vector regression(SVR) method [13] are the main categories of the conventional dead time compensation methods.…”

Section: Introductionmentioning

confidence: 99%

“…Since these undesirable ripples bring about bad influences to motor driving system, a compensation algorithm must be needed in the control algorithm of the motor drive. To solve the nonlinear characteristics of the VSI, various solutions have already been suggested [1][2][3][4][5][6][7][8][9][10][11][12][13]. The lost voltage average value calculation [2,3], the pulse width modulation(PWM) pulse based technique [6].…”

Section: Introductionmentioning

confidence: 99%

Online Dead Time Effect Compensation Algorithm of PWM Inverter for Motor Drive Using PR Controller

Park¹,

Jung²

2017

Journal of Electrical Engineering and Technology

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-This paper proposes the dead time effect compensation algorithm using proportional resonant controller in pulse width modulation inverter of motor drive. To avoid a short circuit in the dc link, the dead time of the switch device is surely required. However, the dead time effect causes the phase current distortions, torque pulsations, and degradations of control performance. To solve these problems, the output current including ripple components on the synchronous reference frame and stationary reference frame are analyzed in detail. As a results, the distorted synchronous d-and q-axis currents contain the 6th, 12th, and the higher harmonic components due to the influence of dead time effect. In this paper, a new dead time effect compensation algorithm using proportional resonant controller is also proposed to reduce the output current harmonics due to the dead time and nonlinear characteristics of the switching devices. The proposed compensation algorithm does not require any additional hardware and the offline experimental measurements. The experimental results are presented to demonstrate the effectiveness of the proposed dead time effect compensation algorithm.

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Torque Pulsation Analysis in PMSM

Selvam,

Sahoo,

Shah

2024

Special Electrical Machinery

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Fully digital, vector-controlled PWM VSI-fed AC drives with an inverter dead-time compensation strategy

Cited by 174 publications

References 5 publications

Torque Ripple Suppression Method with Multilevel Inverter and Feedforward Dead-Time Compensation

Torque Ripple Suppression Method with Multilevel Inverter and Feedforward Dead-Time Compensation

Online Dead Time Effect Compensation Algorithm of PWM Inverter for Motor Drive Using PR Controller

Torque Pulsation Analysis in PMSM

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