A three-phase parallel active power filter operating with PCC voltage compensation with consideration for an unbalanced load

Lee, Woo-Cheol; Lee, Taeck-Kie; Hyun, Dong-Seok

doi:10.1109/tpel.2002.802175

Cited by 70 publications

(6 citation statements)

References 9 publications

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“…Fig. 3 shows the diagram of the negative-sequence voltage control loop that fulfills the control objective (6). As shown in the figure, the output of the plant model is the voltage at node j, which have positive-and negative-sequence components…”

Section: B Negative-sequence Voltage Control Loopmentioning

confidence: 99%

“…converters offer a flexible response that reduces voltage imbalance and harmonics, among other potential power quality factors [3]- [5]. Active power filters [6], [7], static compensators [8], [9], and dynamic voltage restorers [10], [11] are converters specifically dedicated to improving power quality. Other power converters have a different primary function, such as distributed generation inverters and solid-state transformers.…”

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confidence: 99%

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Control Scheme for Negative-Sequence Voltage Compensation and Current Sharing in Inverter-Based Grid-Connected Microgrids

Castilla

Velasco

Miret

et al. 2022

IEEE Trans. Power Electron.

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This paper presents a control scheme that simultaneously solves the problems of negative-sequence voltage compensation and negative-sequence current sharing in grid-connected microgrids using grid-feeding inverters. State-of-the-art schemes have previously solved these problems with low-performance control solutions or, alternatively, with high-performance solutions but paying the cost of high control-data traffic in the communication network. The proposed control scheme improves the performance of previous schemes for grid-feeding inverters with the following characteristics: 1) negative-sequence voltage compensation at any point of the microgrid, 2) accurate negativesequence current sharing, and 3) low control-data traffic. In terms of implementation, two key points of the proposed control scheme are: the voltage compensation is based on a band-pass filter with complex coefficients and the current sharing is reached only with local current measurements. In the theoretical analysis, the system model is based on transfer functions with complex coefficients. This fact facilitates the control design due to 1) the system model is linear in this complex domain and 2) the multiple-input singleoutput model can be represented as a single-input single-output model for voltage compensation. The characteristics of the proposed control are validated by means of experimental results measured in a laboratory microgrid.

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Section: B Negative-sequence Voltage Control Loopmentioning

confidence: 99%

mentioning

confidence: 99%

Control Scheme for Negative-Sequence Voltage Compensation and Current Sharing in Inverter-Based Grid-Connected Microgrids

Castilla

Velasco

Miret

et al. 2022

IEEE Trans. Power Electron.

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show abstract

“…Elimination of higher harmonics from current and voltage waveforms may be achieved by using compensators connected between the source and load. The best solution for that is an active power filter [1][2][3][4][5][6][7][8][9][10]. In general, an APF compensates instantaneous deviations of the current/voltage waveform from sinusoidal shape.…”

Section: Active Power Filtersmentioning

confidence: 99%

Archives of Electrical Engineering

Pasko¹,

Buła²,

Dębowski³

et al. 2018

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The research work has principally been related to selected problems in the field of analysis and synthesis of systems aimed at symmetrisation and improvement of some power quality parameters. This paper constitutes a first part of the report on the research. It has been devoted to effective elimination of higher harmonics and reactive power compensation by means of parallel active power filters. The other problem discussed in this paper is related to this issue and it is very important from the economic point of view; it addresses optimal sizing and placement of active power filters in investigated power networks.

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“…Parallel converters have been used to improve the power capability, reliability, efficiency and redundancy. Parallel converter techniques can be employed to improve the performance of active power filters [41][42][43][44] , UPS [45,46] , fault tolerance of doubly fed induction generators [47], and three-phase drives [48].…”

Section: Spimmentioning

confidence: 99%

Voltage Type Z-source Converters: Overview of the Main Topologies

Júnior¹,

Bradaschia²,

Cavalcanti³

et al. 2012

Eletrônica de Potência

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This paper presents a review in terms of new configurations involving the Z-source converter concept. Since its first appearance, it is evident the importance assumed by the Z-source converter in the last years as a new topological structure with interesting features. As far as the authors’ interest regarding the Z-source converter increases, new topologies have been developed for different applications. In spite of that, it is not observed in technical literature any reference furnishing a compilation of themain configurations related to this topic. The goal of this paper is to provide a complete range on the status of the Z-source converter topologies to professionals and researchers interested in this topic. The configurations are grouped in five categories: (i) twolevel configuration, (ii) multilevel configuration, (iii) Zsource network improvement, (iv) ac-ac conversion, and (v) matrix converter. Based on the paper organization, it is possible to trace objectively the main developments in terms of new Z- source converter topologies.

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A three-phase parallel active power filter operating with PCC voltage compensation with consideration for an unbalanced load

Cited by 70 publications

References 9 publications

Control Scheme for Negative-Sequence Voltage Compensation and Current Sharing in Inverter-Based Grid-Connected Microgrids

Control Scheme for Negative-Sequence Voltage Compensation and Current Sharing in Inverter-Based Grid-Connected Microgrids

Archives of Electrical Engineering

Voltage Type Z-source Converters: Overview of the Main Topologies

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