Results 31 to 40 of about 2,139 (183)

Simulation study on the material stress distribution respect to different angle of ECAP [PDF]

open access: yes, 2022
This research study focused on the influence of channel angle towards stress distribution of material aluminium alloy 5083. The size of the grain is related to the mechanical properties of material.
Kamaruddin, Akmalia Shahira   +1 more
core   +1 more source

Adaptive Frequency-Based Reference Compensation Current Control Strategy of Shunt Active Power Filter for Unbalanced Nonlinear Loads

open access: yesEnergies, 2019
The shunt active power filter (SAPF) is an effective means for the modification of power quality. However, the compensation performance of SAPF would be deteriorated when the unbalanced nonlinear loads are present in the power system.
Cheng-I Chen   +3 more
doaj   +1 more source

A Sliding Mode Control Strategy with Repetitive Sliding Surface for Shunt Active Power Filter with an LCLCL Filter

open access: yesEnergies, 2020
This paper proposes a novel sliding mode control (SMC) scheme with a repetitive sliding surface for shunt active power filters (SAPF) to enhance the system robustness and eliminate harmonic current tracking errors. Traditional control schemes, such as PI
Yunguang Gao   +4 more
doaj   +1 more source

Influence of Non-Integer Harmonics and Interference on SAPF

open access: yesTELKOMNIKA Indonesian Journal of Electrical Engineering, 2014
Inter-harmonics and non-periodic disturbance generated by aging SAPF or other reasons would impact SAPF performance. In this paper, three-level SAPF was used as example: the mathematical model of three-level SAPF under the definition of virtual flux was built. The power theory under the definition of CPT was discussed.
Zhang Chao   +3 more
openaire   +1 more source

Comparison of current-source and voltage-source shunt active power filters for harmonic compensation and reactive power control [PDF]

open access: yes, 2012
This paper presents the comparison between two three-phase Shunt Active Power Filters (SAPFs), one with Current-Source Inverter (CSI) and the other with Voltage-Source Inverter (VSI), which are used to compensate current harmonics and to ...
Afonso, João L.   +5 more
core   +1 more source

DC-link capacitor voltage control for single-phase shunt active power filter with step size error cancellation in self-charging algorithm [PDF]

open access: yes, 2016
This study presents an improved self-charging algorithm by introducing a new feature known as step size error cancellation for better performance of DC-link capacitor voltage control in single-phase shunt active power filter (SAPF).
Abd Rahim, Nasrudin   +4 more
core   +1 more source

A Wavelet-Based Unified Power Quality Conditioner to Eliminate Wind Turbine Non-Ideality Consequences on Grid-Connected Photovoltaic Systems

open access: yesEnergies, 2016
The integration of renewable power sources with power grids presents many challenges, such as synchronization with the grid, power quality problems and so on.
Bijan Rahmani, Weixing Li, Guihua Liu
doaj   +1 more source

Evaluation of a shunt active power filter with energy backup capability [PDF]

open access: yes, 2013
This paper presents a new Shunt Active Power Filter (SAPF) that is able to compensate current power quality problems and also to serve as energy backup to the loads in case of power outages.
Afonso, João L.   +6 more
core   +1 more source

Recurrent Wavelet Fuzzy Neural Network-Based Reference Compensation Current Control Strategy for Shunt Active Power Filter

open access: yesEnergies, 2022
The usage of a shunt active power filter (SAPF) is one of the helpful means to mitigate the reactive power and harmonic current of a power grid. The compensation performance of the SAPF is related to the accuracy of the reference voltage extraction from ...
Cheng-I Chen   +2 more
doaj   +1 more source

Marketing macro environment during the pandemic Covid-19 [PDF]

open access: yes, 2022
Without a doubt, COVID-19 is indeed a disease caused by a recently discovered coronavirus strain, a form of a virus known to cause human respiratory infections. On January 24, 2020, the first case of Malaysia with COVID-19 was detected.
Abu Seman, Noor Aslinda   +2 more
core  

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