Grid Harmonic Current Correction Based on Parallel Three-Phase Shunt Active Power Filter

The three-phase DSTATCOM is prone to higher dynamics due to grid disturbances. The proportionate affine projection algorithm (PAPA) is an adaptive filter that can be used for DSTATCOM control. In order to overcome the sluggish convergence speed of adaptive filters, PAPA is proposed in this paper. The convergence rate versus the steady-state error is a trade-off in conventional adaptive filters. However, the utilization of two adaptive filters in CSS-PAPA increases the convergence and decreases the steady-state error. The suggested filter has the advantage of having a lower computational cost than a standard adaptive filter. The proposed filter helps the inverter to work as a shunt compensator. The goal of the suggested controller is to adjust for reactive power and unity power factor during faulty conditions. The proposed DSTATCOM controller has undergone experimental validation in the laboratory.

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“…where h(i) is calculated from h(i) opt after every iteration. The new update weight coefficient vector of PAPA can be obtained as (5).…”

Section: B Control Structure Of Css-papamentioning

confidence: 99%

“…This is achieved by connecting the APF in series or in parallel with the utility. Series APFs are used to compensate harmonic voltages, while parallel or shunt APFs are used for harmonic current compensation [5]. The use of STATCOM at the distribution end can be referred to as distributed STATCOM (DSTATCOM).…”

Section: Introductionmentioning

confidence: 99%

Modified Proportionate Affine Projection Algorithm Based Adaptive DSTATCOM Control With Increased Convergence Speed

et al. 2022

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“…In [47], a single-phase cascaded H-bridge multilevel active power filter directly accessed to the 27.5-kV traction network is proposed to eliminate the low-frequency oscillation phenomenon in the vehicle-grid system of high-speed railways. Reference [48] presents a finite set model predictive control (FS-MPC) applied to the shunt active power filters (SAPF) based on three-phase inverters connected in parallel sharing the same DC-link.…”

Section: Fig 1 Block Diagram Of Sapfmentioning

confidence: 99%

Synchronization of Active Power Filter under Distorted Grid Conditions

Ullah

2021

IJRCS

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Advancement in technology has resulted in increased use of electrical energy. The trend of using energy-saving appliances is also increased considerably. Harmonic currents have been increased in power systems due to the large-scale use of nonlinear loads. Shunt Active Power Filter (SAPF) is the most widely used technique for the compensation of current harmonics. Under adverse grid conditions performance of SAPF is affected badly. In this paper, a modified synchronous reference frame theory is proposed for current reference generation by incorporating an advanced phase-locked loop technique for the estimation of frequency and phase. The proposed approach results in an accurate extraction of reference current in the presence of various grid disturbances. Matlab/Simulink environment is used for evaluating the performance. The results achieved show excellent performance of the proposed technique in terms of reducing harmonics distortion and dynamic response. The total harmonics distortion of the compensated source current is reduced to a value well within the limits of the IEEE-519 standard.

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“…In [29], the implementation of hybrid SAPF to improve power quality was introduced. Correction of grid harmonic current using parallel three-phase SAPF was presented in [30]. Hybrid automaton-fuzzy control to single-phase dual buck half-bridge SAPF for power quality improvement was studied in [31].…”

Section: Introductionmentioning

confidence: 99%

Implementation of an Electronically Based Active Power Filter Associated with a Digital Controller for Harmonics Elimination and Power Factor Correction

et al. 2022

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This paper introduces simulation study and hardware implementation of a shunt active power filter (SAPF). The SAPF is considered an effective method for improving power quality by enhancing the power factor and reducing the total harmonic distortion (THD) for power sources due to nonlinear loads. A digital notch filter is used for extracting the reference current signal. The hysteresis band current controller is used to generate gating switching signals that control the switches of SAPF. The proposed model is constructed using Simulink/MATLAB environment and Proteus VMS, and the performance of the model is tested through a simulation study. The model of SAPF with a digital notch-filter is implemented using the Arduino microcontroller and a printed circuit board (PCB) layout. The model emulating a single-phase SAPF prototype is built and tested in the University of Kafrelshiekh, Faculty of Engineering laboratory. Significant improvements in power quality issues confirm the ability and effectiveness of SAPF, as well as reducing THD to a level less than 5%, which is in proportion to IEEE Std. 519-1992 and IEEE Std. 519-2014. The results emphasize the importance of SAPF to mitigate harmonics problems and enhance power factors.

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Grid Harmonic Current Correction Based on Parallel Three-Phase Shunt Active Power Filter

Cited by 22 publications

References 56 publications

Modified Proportionate Affine Projection Algorithm Based Adaptive DSTATCOM Control With Increased Convergence Speed

Modified Proportionate Affine Projection Algorithm Based Adaptive DSTATCOM Control With Increased Convergence Speed

Synchronization of Active Power Filter under Distorted Grid Conditions

Implementation of an Electronically Based Active Power Filter Associated with a Digital Controller for Harmonics Elimination and Power Factor Correction

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