A Three-Phase Four-Wire Power Filter Comprising a Three-Phase Three-Wire Active Power Filter and a Zig–Zag Transformer

Jou, Hurng‐Liahng; Wu, Kuen-Der; Wu, Jinn‐Chang; Chiang, Wen-Jung

doi:10.1109/tpel.2007.911779

Cited by 86 publications

(31 citation statements)

References 13 publications

(14 reference statements)

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“…The total voltage drop that occurs from the oscillationdam ping voltage V Damp and the disturbance-rejection voltage V Disturb can be calculated by equation (6).…”

Section: Equivalent Voltage Dropmentioning

confidence: 99%

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A Novel Filter Design for Output LC Filters of PWM Inverters

Kim¹,

Sul²

2011

Journal of Power Electronics

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The cutoff frequency of the output LC filters of PWM inverters limits the control bandwidth of the converter system while it attenuates voltage ripples that are caused by inverter switching activities. For a selected cutoff frequency of an output LC filter, an infinite number of L-C combinations is possible. This paper analyses the characteristics of output LC filters for PWM inverters terms of the L-C combinations. Practical circuit conditions such as no-loads, full resistive-loads, and inductive-load conditions are considered in the analysis. This paper proposes a LC filter design method for PWM inverters considering both the voltage dynamics and the inverter stack size. An experimental PWM inverter system based on the proposed output LC filter design guideline is built and tested.

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“…The total voltage drop that occurs from the oscillationdam ping voltage V Damp and the disturbance-rejection voltage V Disturb can be calculated by equation (6).…”

Section: Equivalent Voltage Dropmentioning

confidence: 99%

“…The main purpose the of L-type filter is to attenuate the current ripples that result from inverter switching [6], [7]. This type of filter has a restriction in low-switchingfrequency applications of high-power PWM inverters due to the inevitable large filter size.…”

Section: Introductionmentioning

confidence: 99%

A Novel Filter Design for Output LC Filters of PWM Inverters

Kim¹,

Sul²

2011

Journal of Power Electronics

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“…The Distribution Static Compensator (DSTATCOM) is one of the power quality improvement device which is used to provide reactive power for improving voltage regulation, to reduce harmonics in the source currents, and to balance the supply currents when the loads are unbalanced and nonlinear. There are various topological structures of the DSTATCOM are reported in the literature such as a voltage source converter (VSC) with four legs [9], three single-phase VSC [8], three-leg VSC with split capacitors [9], and three-leg VSC with a zig-zag transformer [10]. To generate reference signal for PWM generator in order to provide pulses for the control of VSI of DSTATCOM, many control techniques are presented in the literature, viz., instantaneous reactive power theory (p−q theory), synchronous reference frame theory, power balance theory, etc.…”

Section: Introductionmentioning

confidence: 99%

Comparative Power Quality analysis of Conventional and Modified DSTATCOM Topology

Kumar¹,

Sikkim²

2017

ijeei

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In this paper, the two topologies of Distribution Static Compensator (DSTATCOM) such as conventional DSTATCOM and modified DSTATCOM with their performances are investigated in terms of power quality improvement. Normally the DSTATCOM has shunt voltage source inverter (VSI) connected to point of common coupling (PCC) through the interfacing inductor. It is possible to modify DSTATCOM by connecting a capacitor in series with the interface inductor at the point of common coupling. This Modified topology requires a lower value of dc link voltage across the dc storage capacitor of voltage source inverter (VSI) for compensation of source currents, when compared with the conventional DSTATCOM topology. The reference signal for PWM generator is generated using synchronous reference frame theory and Indirect PI theory. A detailed simulation study to compare the performances of conventional and modified topologies are carried out using MATLAB 7.1 and the superior features of modified DSTATCOM topology are established.

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“…Rapid detection of disturbance signal with high accuracy, fast processing of the reference signal and high dynamic response of the controller are the prime requirements for desired compensation. This paper presents a review on the state-of the-art of several control techniques of active filters for harmonic current mitigation and reactive power compensation in terms of their advantages, disadvantages and some limitations [1][2][3][4][5][6][7][8]. Though, to follow the generated reference current quickly without any error is a basic function of those controllers it is challenging because of the high rates of change and wide bandwidth of that reference.…”

Section: Introductionmentioning

confidence: 99%

Current Controllers of Active Power Filter for Power Quality Improvement: A Technical Analysis

Dey

Mekhilef

2015

Automatika

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Original scientific paperNon-linear load deteriorates the quality of current waveforms at the point of common coupling of various consumers. Active power filter (APFs) is used to mitigate the most concern harmonic pollution in an electrical network. The controller part is the nucleus of an active power filter configuration. Active power filter performance is affected significantly by the selection of current control techniques. The active filter and its current control must have the capability to track sudden slope variations in the current reference to compensate the distorted current drawn by the voltage source inverter. Therefore, the choice and implementation of the current regulator is more important for the achievement of a satisfactory performance level. In this survey, technical reviews of various types of controllers covering a wide range have been presented. This work also reveals the advantages and disadvantages of the practiced control strategies. The effectiveness of the study will help the researchers to choose the proper control methods for various applications of active power filter. Key words: Active power filters, Control algorithms, Current controllers, Comparison, Harmonic currents Power quality, Total harmonic distortion, Root mean square (RMS) errorRegulatori struje aktivnih filtara snage za poboljšanje kvalitete snage: Tehnička analiza. Nelinearni tereti pogoršavaju kvalitetu strujnih valova u točki u kojoj se spaja više potrošača. Aktivni filtar snage se koristi za ublaža-vanje najvažnijeg harmoničkog onečišćenja strujne mreže. Jezgra aktivnog filtra snage je regulator. Na performanse aktivnog filtra snage značajno utječe odabir upravljačke tehnike. Aktivni filtar i njegova tehnika upravljanja strujom moraju imati mogućnost pratiti nagle skokove u referentnoj vrijednosti struje kako bi mogli kompenzirati izobličenja struje koju vuče inverter naponskog izvora. Zato su izbor i implementacija regulatora struje iznimno važni za postizanje zadovoljavajuće razine performansi. U ovom pregledu su predstavljene tehničke recenzije koje pokrivaju širok raspon regulatora. Ovaj rad takoer otkriva prednosti i mane korištenih strategija upravljanja. Efektivnost ovog pregleda pomoćiće istraživačima da izaberu ispravnu metodu upravljanja za različite aplikacije aktivnog filtra snage.

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A Three-Phase Four-Wire Power Filter Comprising a Three-Phase Three-Wire Active Power Filter and a Zig–Zag Transformer

Cited by 86 publications

References 13 publications

A Novel Filter Design for Output LC Filters of PWM Inverters

A Novel Filter Design for Output LC Filters of PWM Inverters

Comparative Power Quality analysis of Conventional and Modified DSTATCOM Topology

Current Controllers of Active Power Filter for Power Quality Improvement: A Technical Analysis

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