A Novel Active Power Filter With Fundamental Magnetic Flux Compensation

Li, Dayi; Chen, Qiaofu; Zhou, Jia; Ke, Jianxing

doi:10.1109/tpwrd.2003.823194

Cited by 52 publications

(26 citation statements)

References 11 publications

(11 reference statements)

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“…This is the traditional series hybrid APF based on the fundamental magnetic flux compensation. The stability of this APF has been proved by many literatures such as [7][8]11].…”

Section: Only Compensate Fundamental Currentmentioning

confidence: 97%

“…To overcome these disadvantages, Active Power Filter (APF) has been proposed [3][4][5][6][7][8]. A novel principle of magnetic flux compensation (MFC) is proposed in reference [7], which has been applied in series hybrid APF [7][8], controllable reactor [9], and shunt hybrid APF [10]. In the series hybrid APF, the series transformer works as a controlled reactor.…”

Section: Introductionmentioning

confidence: 99%

“…As a result, the series transformer equivalent impedance to interharmonics is not equal to the equivalent impedance to harmonics. But in reference [7][8] and [11], this difference was ignored. All of them do not consider the properties of the LPF.…”

Section: Introductionmentioning

confidence: 99%

“…The equivalent impedance of the series transformer to the inter-harmonics has not been discussed independently. For this reason, the theoretical analysis and conclusions in reference [7][8] and [11] about the equivalent impedance of transformer are incorrect. In experimental, inter-harmonics oscillation phenomenon occurred when compensate both fundamental and harmonics current.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Research on the Inter-harmonics Equivalent Impedance of Series Hybrid Active Power Filter

Zhang¹,

Liu²,

Shao-jun³

et al. 2015

Journal of Electrical Engineering and Technology

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-In the series hybrid active power filter (SHAPF) with magnetic flux compensation (MFC), the system current oscillate in the experimental results when adding the same phase harmonic current command in current control block. This condition endangers the security of the SHAPF. Taking the digit period average arithmetic as example, this paper explains the inter-harmonics current oscillation in the experiment. The conclusion is that the SHAPF is unstable to the inter-harmonics current in theory. Limited by the capacity of the inverter, the system current and the inverter output current do not increase to infinite. At last, some methods are proposed to solve this problem. From the practical viewpoint, the voltage feed-forward control is easy to achieve. It can suppress the current oscillation problems, and also improve the filtering effect. The feasibility of the methods is validated by both the emulation and experiment results.

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“…This is the traditional series hybrid APF based on the fundamental magnetic flux compensation. The stability of this APF has been proved by many literatures such as [7][8]11].…”

Section: Only Compensate Fundamental Currentmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Research on the Inter-harmonics Equivalent Impedance of Series Hybrid Active Power Filter

Zhang¹,

Liu²,

Shao-jun³

et al. 2015

Journal of Electrical Engineering and Technology

View full text Add to dashboard Cite

show abstract

“…Actually, several control methods such as sliding mode control [4], wavelet method [5], fuzzy control [6,7], adaptive neural network control [8], neuro-fuzzy control [9], and fundamental magnetic flux compensation [10], have been proposed and used to control harmonic currents and dc voltage of power filters. These controllers are also employed to improve active power filter performances and replace the conventional PID controllers [11].…”

Section: Introductionmentioning

confidence: 99%

A comparative study of harmonic currents extraction by simulation and implementation

Merabet¹,

Saad²,

Abdeslam³

et al. 2013

International Journal of Electrical Power & Energy Systems

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a b s t r a c tThe aim of the present work is to obtain a perfect compensation by extracting accurate harmonic currents. The objective is to avoid the consequences due to the presence of disturbances in the power system. A comparative study of harmonic currents extraction by simulation and implementation is carried out for two different techniques. The first technique is based on the instantaneous powers, taking advantage of the relationship between current and the power transformed from the supply source to the loads. The second is based on ADALINE neural network. The neural method can estimate the harmonic terms individually and online, therefore, the APF can realise a selective compensation. The developed architectures are validated by computer simulation and experimental tests. The algorithms are implemented in the dSPACE Board in order to show the effectiveness and capability of each technique. The results have demonstrated that the speed and the accuracy of the ADALINE can improve greatly the performances of active power filters.

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Direct neural method for harmonic currents estimation using adaptive linear element

Merabet

Saad

Abdeslam

et al. 2017

Electric Power Systems Research

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The use of nonlinear loads has increased in power systems consequently the harmonic currents have also increased causing detrimental effects to the supply system and user equipment. The aim of the present paper is to identify harmonics in order to obtain a perfect compensation by active power filter (APF). A study of harmonic currents identification by two different methods is conducted in this work. The instantaneous power (PQ) theory method requires two low-pass filters for the extraction of direct power components from total power components. However the direct neural method based on ADALINE neural network method estimates total harmonic current as well as harmonic components separately. Moreover, the identification of each component separately enables the selective compensation of harmonics by the active filter if the objective is to minimize the cost. The method is easy to implement in real time compared to PQ method. In present paper two algorithms based on conventional PQ method and direct neural method were developed in order to identify the harmonic currents. These developed algorithms are confirmed by experimental tests by implementing these techniques in a dSPACE controller in order to show their effectiveness. The obtained results are compared, discussed and analyzed.

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A Novel Active Power Filter With Fundamental Magnetic Flux Compensation

Cited by 52 publications

References 11 publications

Research on the Inter-harmonics Equivalent Impedance of Series Hybrid Active Power Filter

Research on the Inter-harmonics Equivalent Impedance of Series Hybrid Active Power Filter

A comparative study of harmonic currents extraction by simulation and implementation

Direct neural method for harmonic currents estimation using adaptive linear element

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