Analysis of Ripple Current in the Capacitors of Active Power Filters

Płatek, T.

doi:10.3390/en12234493

Cited by 3 publications

(1 citation statement)

References 29 publications

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“…In [23] is analyzed a new seriesparallel-resonant filter as a part of a shunt active power filter. In [24] there is an analysis of the operation of filter in the configuration also of a shunt active power filter. Taking into account the high frequency modulation, the values of the current through the filter capacitor as well as through the DC capacitor are defined.…”

Section: Introductionmentioning

confidence: 99%

Study of the operation of the output filter of a single-phase series active power filter

Antchev¹,

Gourgoulitsov²,

Antchev

2021

IJPEDS

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In the article is presented a single-phase series active power filter (SFSAPF) designed to compensate the total harmonic distortion (THD) factor of the supply network voltage. Particular attention is paid to the work of the output capacitor of the passive filter, and dependencies for the design of the filter at hysteresis voltage control are presented. The value of the higher harmonics of the current through the filter capacitor is determined. A mathematical relationship between the voltage ripple of the capacitor, its value and the switching frequency is derived. As a result of the advanced research a methodology for designing the output filter of a single-phase serial active power filter has been proposed. The results from computer simulation and experiment are also given.

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Section: Introductionmentioning

confidence: 99%

Study of the operation of the output filter of a single-phase series active power filter

Antchev¹,

Gourgoulitsov²,

Antchev

2021

IJPEDS

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Fuzzy Multiple Hidden Layer Neural Sliding Mode Control of Active Power Filter With Multiple Feedback Loop

Zhuo

Fei

2021

IEEE Access

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A fuzzy multiple hidden layer neural sliding mode control with multiple feedback loop (FMHLNSMCMFL) is proposed for a single-phase active power filter (APF), where a sliding mode controller is designed to make the current tracking error converge to zero and a new neural network with multiple feedback loops is introduced to approximate unknown dynamics. At the same time, the fuzzy neural network can eliminate chattering, improve the control accuracy and reduce the current distortion rate of APF. Moreover, the proposed double feedback fuzzy double hidden layer recurrent neural network is the weighted sum of fuzzy network and double hidden layer network and has strong global learning ability. The adaptive parameters obtained by Lyapunov function can ensure the asymptotic stability of the system. Simulation and hardware experiments verify the introduced FMHLNSMCMFL scheme is a viable control solution for the APF.INDEX TERMS Fuzzy multiple hidden layer neural sliding mode control, multiple feedback loop, sliding mode control , active power filter.

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Interleaving Modulation Schemes in Asymmetrical Dual Three-Phase Machines for the DC-Link Stress Reduction

et al. 2023

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The DC-Link capacitor plays a crucial role as far as power density and reliability are concerned: it occupies approximately 40% of the inverter, and causes approximately 30% of its failures. Asymmetrical dual three-phase (ADTP) multiphase arrangements are gaining relevance in the automotive sector for powertrain applications. This work focuses on reducing the impact that the widely used double zero sequence injection (DZSI) family of PWM techniques have on such a bulky and failure-prone component in an ADTP arrangement by means of interleaving techniques. By using the double Fourier integral formalism, the input current spectra and the overall performance of these PWM techniques have been derived, in terms of current rms value and voltage ripple in the DC-Link capacitor. Simulations have shown that choosing an adequate interleaving scheme and angle considerably relieves both current and voltage stresses on the DC-Link capacitor compared to noninterleaved operation. Reductions of 84% current rms and 86% voltage ripple have been achieved at static operating points. Finally, by averaging the rms current over WLTP standard driving cycle, reductions up to 26% have been obtained under more realistic conditions. All this would enhance the reliability and reduce the size of the onboard capacitors in future electric vehicles.

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Analysis of Ripple Current in the Capacitors of Active Power Filters

Cited by 3 publications

References 29 publications

Study of the operation of the output filter of a single-phase series active power filter

Study of the operation of the output filter of a single-phase series active power filter

Fuzzy Multiple Hidden Layer Neural Sliding Mode Control of Active Power Filter With Multiple Feedback Loop

Interleaving Modulation Schemes in Asymmetrical Dual Three-Phase Machines for the DC-Link Stress Reduction

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