Comparison of Synchronous Detection and I. Cos&amp;#x003D5; Shunt Active Filtering Algorithms

Bhuvaneswari, G.; Nair, Manjula G.; Reddy, S. Kumar

doi:10.1109/pedes.2006.344229

Cited by 10 publications

(8 citation statements)

References 4 publications

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“…2. The Synchronous Detection Method (SDM) [9] is used here to calculate the reference current for SAPF due to its simplicity. It is based on the idea that the APF forces the source current to be sinusoidal and in phase with the source voltage despite the load variations.…”

Section: B Control Scheme Of the Sapfmentioning

confidence: 99%

Grid power quality enhancement using fuzzy control-based shunt active filtering

Kouadria

Allaoui

Denaï

et al. 2015

2015 SAI Intelligent Systems Conference (IntelliSys)

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Abstract-Active filtering has proved efficient for the mitigation of harmonics in distribution grids. This paper deals with the design of fuzzy control strategies for a three-phase shunt active filter to enhance the power quality via the regulation of the DC bus voltage of the distribution network. The proposed control scheme is based on Interval Type 2 Fuzzy Logic controller. A simulation study is performed under Simulink/Matlab to evaluate the performance and robustness of the proposed control scheme.Keywords-shunt active power filter, power quality, harmonic distorsions, type 2 fuzzy logic..

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Section: B Control Scheme Of the Sapfmentioning

confidence: 99%

Grid power quality enhancement using fuzzy control-based shunt active filtering

Kouadria

Allaoui

Denaï

et al. 2015

2015 SAI Intelligent Systems Conference (IntelliSys)

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“…A DSP mechanism based control on APF also listed in [31]. Bhuvaneswari in [17] reported on tightfitting of waves and approach for power frequency revision. Similarly synchronous control strategy, current identical method, power equalization method, matching resistance method also comes into picture by al.et.…”

Section: Introductionmentioning

confidence: 99%

PQ improvement of Micro-Grid by Using DG and Power Quality Conditioner with BESS

Mishra¹,

Jena²,

Nayak³

2018

IJET

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DG Grid interfaced system has been focused through this paper. The objective is to improve power quality of the grid, which was polluted by various means. The improvement of power quality of the micro grid includes uses of a specially designed DG, BESS and Power Quality conditioner. The system consists of a two-stage power conversion. Solar PV supplies power for both DC and AC loads. Manufacturer datasheet is used for modeling the PV panel. In order to keep the BUS voltage stable a BESS is joined to DC BUS through power electronic converter, which is used to absorb the excess power whenever production is high and deliver power to the load on low production. The system continues to supply the local loads, incase of grid discontinuity. Thus it eliminates threats of islanding. This paper also focuses on control and stability of DC bus voltage and energy management scheme. The project uses Matlab/Simulink platform for efficient verification. For power quality improvement of Micro Grid it uses 3leg inverter, which is coupled with SPV and MPPT with Battery storage, which is used as compensator for the whole system. For prevention to reduce voltage current and power flow between DG and Grid, it is necessary to have an optimum control. Through the adjustment of power circulation between shunt paired DG ensures current voltage and power on micro grid. +ve, -ve and Zero sequence components of currents and voltage can be adjusted by the suggested methodology in Grid tied DG system. The said PQC have multiple uses. Firstly as a power converter and secondly as a shunt APF for harmonic compensation on voltage, current and power (both active and reactive) for both balanced and unbalanced loads in the Grid tied DG system. It also cares for the neutral conductor. Either individually or in grid connected mode all the above objectives can be achieved. For the entire Grid, it is realized that after compensation three phase four wired un-balance loads looks as balanced linear resistive load for the Grid. All these task significantly replicated on MATLAB/Simulink. After compensation the total harmonic distortion on input voltage and current reduced drastically. IEEE519 in the range of 5% suitably accepts it.

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“…Under balanced and sinusoidal source voltage conditions, various research works on this particular algorithm have been reported in the literature such as synchronous reference frame (SRF) [20][21][22], instantaneous power (pq) theory [2,[23][24][25], dq-axis with Fourier (dqF) [26], fast Fourier transform (FFT) [27], synchronous detection (SD) [28,29] and artificial neural network (ANN) [30,31]. Nevertheless, among the available algorithms, pq theory algorithm provides the best advantages which include simple design, increased speed and fewer calculations, and thus makes it more likely to be implemented practically.…”

Section: Introductionmentioning

confidence: 99%

A Refined Self-Tuning Filter-Based Instantaneous Power Theory Algorithm for Indirect Current Controlled Three-Level Inverter-Based Shunt Active Power Filters under Non-sinusoidal Source Voltage Conditions

et al. 2017

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Abstract:In this paper, a refined reference current generation algorithm based on instantaneous power (pq) theory is proposed, for operation of an indirect current controlled (ICC) three-level neutral-point diode clamped (NPC) inverter-based shunt active power filter (SAPF) under non-sinusoidal source voltage conditions. SAPF is recognized as one of the most effective solutions to current harmonics due to its flexibility in dealing with various power system conditions. As for its controller, pq theory has widely been applied to generate the desired reference current due to its simple implementation features. However, the conventional dependency on self-tuning filter (STF) in generating reference current has significantly limited mitigation performance of SAPF. Besides, the conventional STF-based pq theory algorithm is still considered to possess needless features which increase computational complexity. Furthermore, the conventional algorithm is mostly designed to suit operation of direct current controlled (DCC) SAPF which is incapable of handling switching ripples problems, thereby leading to inefficient mitigation performance. Therefore, three main improvements are performed which include replacement of STF with mathematical-based fundamental real power identifier, removal of redundant features, and generation of sinusoidal reference current. To validate effectiveness and feasibility of the proposed algorithm, simulation work in MATLAB-Simulink and laboratory test utilizing a TMS320F28335 digital signal processor (DSP) are performed. Both simulation and experimental findings demonstrate superiority of the proposed algorithm over the conventional algorithm.

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Comparison of Synchronous Detection and I. Cosϕ Shunt Active Filtering Algorithms

Cited by 10 publications

References 4 publications

Grid power quality enhancement using fuzzy control-based shunt active filtering

Grid power quality enhancement using fuzzy control-based shunt active filtering

PQ improvement of Micro-Grid by Using DG and Power Quality Conditioner with BESS

A Refined Self-Tuning Filter-Based Instantaneous Power Theory Algorithm for Indirect Current Controlled Three-Level Inverter-Based Shunt Active Power Filters under Non-sinusoidal Source Voltage Conditions

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