Active power filters: A comparative analysis of current control techniques

Caceres, Guillermo Antonio Vargas; Lizarazo, Julio Cesar Gelvez; Mantilla, María A.; Suárez, Johann Farith Petit

doi:10.1109/andescon.2010.5631646

Cited by 6 publications

(3 citation statements)

References 12 publications

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“…In order to demonstrate the operation principle of the proposed topology, key computer simulation results were obtained for the conventional SAPF, represented in Figure 1, and for the proposed SAPF with modified dc-link, represented in Figure 2, where were considered inductors, LDC, of 200 mH and 50 mH, respectively. Figure 4 shows the current in dc-link in both topologies, whose current regulation was made through a PI controller presented in [23], for a reference of 20 A. It is important to note that the gains of the PI controller influence the overshoot observed in both simulation results.…”

Section: Proposed Control Algorithmmentioning

confidence: 99%

Experimental Validation of a Current-Source Converter with Reduced Dc-link Operating as Shunt Active Power Filter

Oliveira¹,

Barros²,

Afonso³

et al. 2021

EAI Endorsed Transactions on Energy Web

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Nowadays, the majority of electronic equipment behaves as nonlinear loads, introducing power quality problems into the power grid, namely, current harmonics and low power factor. These problems contribute to reduce the efficiency of the power grid and can cause malfunctioning of sensitive loads connected to the power grid. Therefore, it is important to develop power electronics solutions capable to mitigate these power quality problems. In this context, this paper presents a novel single-phase shunt active power filter (SAPF) based on a current-source converter, where the key differencing factor, when compared with the conventional approach, is the reduced dc-link. As the proposed topology requires a reduced dc-link, it represents a relevant advantage, requiring a less bulky inductance in the dc-link, reducing the losses, cost, and volume. The proposed SAPF with reduced dc-link is introduced in detail along the paper, and a comprehensive comparison with the conventional SAPF is established based on computer simulations. Besides, an experimental validation is carried out with a developed laboratory prototype, validating the main advantages of the proposed SAPF with reduced dc-link.

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Section: Proposed Control Algorithmmentioning

confidence: 99%

Experimental Validation of a Current-Source Converter with Reduced Dc-link Operating as Shunt Active Power Filter

Oliveira¹,

Barros²,

Afonso³

et al. 2021

EAI Endorsed Transactions on Energy Web

View full text Add to dashboard Cite

show abstract

“…Fig. 3 shows the current in dc-link in both topologies, whose current regulation was made through a PI controller presented in [18], for a reference of 20 A. It is important to note that the gains of the PI controller influence the overshoot observed in both simulation results.…”

Section: Proposed Control Algorithmmentioning

confidence: 99%

A Novel Single-Phase Shunt Active Power Filter Based on a Current-Source Converter with Reduced Dc-Link

Oliveira

Barros

Afonso

et al. 2020

Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering

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Nowadays, the majority of electronic equipment behave as nonlinear loads, introducing Power Quality (PQ) problems into the Power Grid (PG), namely, current harmonics and low power factor. These PQ problems contribute to the reduction of the efficiency of the transmission and distribution PG, as well as induce the malfunctioning of sensitive loads connected to the PG. Therefore, the development of equipment able to mitigate these PQ problems is extremely important. In this context, this paper presents a novel single-phase Shunt Active Power Filter (SAPF) based on a current-source converter, where the key differencing factor, when compared with the conventional approach, is the reduced dc-link. As the proposed topology requires a reduced dc-link, it represents a relevant advantage, since a typical current-source converter needs an inductor with a high inductance in dc-link, which results in higher losses, costs and component sizing. The proposed SAPF with reduced dc-link is introduced in detail along the paper and a comprehensive comparison with the conventional SAPF is established based on computer simulations. Besides, an experimental validation was carried-out with a developed laboratory prototype, validating the main advantages of the proposed SAPF with reduced dc-link.

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“…Shunt Active Filter (SAF), a specific type of APF, can effectively compensate the harmonic current of nonlinear loads (Cavini et al, 2004), injecting the detected currents distortions with reverse polarity, so getting its cancellation. Thus, several control strategies have been developed for this topology (Caceres et al, 2010;Buso et al, 1998).…”

Section: Introductionmentioning

confidence: 99%

Feedback linearization control for active filters

Ketzer

Jacobina

2013

Proceeding Series of the Brazilian Society of Computational and Applied Mathematics

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Abstract-This paper presents the application of the feedback linearization theory to a three-phase shunt active filter. The solution is performed in a synchronous reference frame, dealing with multivariable aspects of system. The proposed control ensures a proper operation of active filter, allowing to achieve high power factor of the grid independent of constants obtained by operation points. Experimental results obtained from a prototype are presented in order to validate the proposed strategy, covering the analysis from stationary and transient responses. Keywords-Feedback Linearization, Nonlinear Control, Active Filters, Nonlinear DynamicsResumo-Este trabalho apresenta a aplicação da teoria feedback linearization em um filtro ativo trifásico. A soluçãoé realizada num eixo de referências síncronas, tratando os aspectos multivariaveis do sistema. O controle proposto garante uma operação satisfatoria do filtro ativo, permitindo alcançar alto fator de potência na rede independentemente das constantes obtidas pelos pontos de operação. Resultados experimentais obtidos em laboratório a partir de um protótipo do conversor são apresentados, abordando a análise em regime e transitória.

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Active power filters: A comparative analysis of current control techniques

Cited by 6 publications

References 12 publications

Experimental Validation of a Current-Source Converter with Reduced Dc-link Operating as Shunt Active Power Filter

Experimental Validation of a Current-Source Converter with Reduced Dc-link Operating as Shunt Active Power Filter

A Novel Single-Phase Shunt Active Power Filter Based on a Current-Source Converter with Reduced Dc-Link

Feedback linearization control for active filters

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