Suppression of DC-Link Voltage Fluctuation in the Motor Drive System with Reduced Capacitance

Lin, Hongmin; Song, Wenxiang

doi:10.1007/s42835-021-00786-6

Cited by 2 publications

(3 citation statements)

References 19 publications

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“…Eq. ( 13) is subjected to Laplace transform, the relationship among in (14) The electromagnetic torque increment e T  is shown in Eq. ( 15).…”

Section: Figure 2 Control Block Diagram Of Ml-hspmmmentioning

confidence: 99%

“…A controller using sine wave transfer functions to reduce the rotational speed pulsation was proposed when the rotational speed of the motors is fluctuated and the drive system is vibrated due to the pulsating load torque [13]. Aiming at the DC-link voltage fluctuation caused by reducing the capacitance, a voltage fluctuation suppression strategy was proposed, which could adopt the sampled DC-link voltage to control the motor to suppress the power fuctuation on DC-link [14]. A precise calculation method for estimating the frequencies and amplitudes of dual-PWM adjustable speed drives input interharmonic due to torque oscillations is provided [15].…”

Section: Introductionmentioning

confidence: 99%

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Multisource Oscillation Suppression Control of Magnetic Levitation High Speed Permanent Magnet Motor

2022

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The multi-source oscillation of magnetic levitation permanent magnet motor (ML-PMM) under high speed operation is inevitable. The reasons are the influence of the strong coupling characteristics of high speed permanent magnet motor(HSPMM), the nonlinear characteristics of power converter and the coupling characteristics of magnetic levitation control system. Aiming at the multi-source oscillation caused by magnetic levitation system and HSPMM, the multi-source oscillation suppression control method suitable for magnetic levitation-high speed permanent magnet motor(ML-HSPMM) is studied in this paper. The stability of ML-HSPMM and the small signal model of the motor are analyzed. Finally, the control strategy of is verified by simulation and experiment.

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“…Eq. ( 13) is subjected to Laplace transform, the relationship among in (14) The electromagnetic torque increment e T  is shown in Eq. ( 15).…”

Section: Figure 2 Control Block Diagram Of Ml-hspmmmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Multisource Oscillation Suppression Control of Magnetic Levitation High Speed Permanent Magnet Motor

2022

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“…This measurement technique detects the chaotic swings that cause damage in the power transmission process. The detected chaotic swings then minimize the complexity of the fluctuation detection process and lower its energy consumption level [6].…”

Section: Introductionmentioning

confidence: 99%

Automatic Electrical System Fault Diagnosis Using a Fuzzy Inference System and Wavelet Transform

Zhang

2023

Processes

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Electrical systems consist of varied components that are used for power distribution, supply, and transfer. During transmission, component failures occur as a result of signal interruptions and peak utilization. Therefore, fault diagnosis should be performed to prevent fluctuations in the power distribution. This article proposes a fluctuation-reducing fault diagnosis method (FRFDM) for use in power distribution networks. The designed method employs fuzzy linear inferences to identify fluctuations in electrical signals that occur due to peak load demand and signal interruptions. The fuzzy process identifies the fluctuations in electrical signals that occur during distribution intervals. The linear relationship between two peak wavelets throughout the intervals are verified across successive distribution phases. In this paper, non-recurrent validation for these fluctuations is considered based on the limits found between the power drop and failure. This modification is used for preventing surge-based faults due to external signals. The inference process hinders the distribution of new devices and re-assigns them based on availability and the peak load experienced. Therefore, the device from which the inference outputs are taken is non-linear, and the frequently employed wavelet transforms are recommended for replacement or diagnosis. This method improves the fault detection process and ensures minimal distribution failures.

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Suppression of DC-Link Voltage Fluctuation in the Motor Drive System with Reduced Capacitance

Cited by 2 publications

References 19 publications

Multisource Oscillation Suppression Control of Magnetic Levitation High Speed Permanent Magnet Motor

Multisource Oscillation Suppression Control of Magnetic Levitation High Speed Permanent Magnet Motor

Automatic Electrical System Fault Diagnosis Using a Fuzzy Inference System and Wavelet Transform

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