Hybrid Active Filter With Variable Conductance for Harmonic Resonance Suppression in Industrial Power Systems

Lee, Tzung-Lin; Wang, Yen-Ching; Li, Jiancheng; Guerrero, Josep M.

doi:10.1109/tie.2014.2347008

Cited by 118 publications

(58 citation statements)

References 46 publications

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“…Whenever the limit is violated, a suitable mitigation technique should be applied. Various techniques of harmonics mitigation have been reported in literature with some findings implemented [5][6][7][8][9][10]. The use of active filters over passive filters for power conditioning was proposed in Akagi [5], Shahbaz [6] and Dutta et al [7].…”

Section: Introductionmentioning

confidence: 99%

“…However, these advantages come at the expense of cost and operating loss Akagi [5]. Lee et al [8] proposed hybrid active filter with variable conductance for use as harmonic resonance suppressor in industrial power systems. They argued that apart from avoiding harmonic resonance and maintaining harmonic distortion within an acceptable level in case of load changes and variations of line impedance of the power system, a reasonable trade-off between filtering performances and cost can be achieved using hybrid active filters.…”

Section: Introductionmentioning

confidence: 99%

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Harmonics mitigation on industrial loads using series and parallel resonant filters

2017

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Most industrial loads are inductive in nature and therefore absorb Volts Ampere Reactance (VARs) leading to lagging power factor. Some inductive loads also produce current and voltage signals with frequencies in integer multiples of the 50 or 60 Hz fundamental frequencies called harmonics. Harmonics in power system causes several problems ranging from overheating, premature equipment failure, false tripping of protective relays resulting in unnecessary down time in industrial production. This work compared the use of series and parallel resonant harmonic filters in suppressing harmonics using Simulink model of the power system of NICHEMTEX, a Textile industry in Nigeria as a case study. Mathematical analysis representing current harmonics distributions on industrials loads with and without capacitor banks were presented. From the analysis, series resonant filter mitigated the total harmonic distortion from 30.080% to 3.460%. The installation of capacitor bank along with the series resonant filter in the industrial facility, further reduced the total harmonic distortion to 0.001% and power factor compensated from 0.860 to 0.894.However, the use of parallel resonant filter mitigated the harmonic distortion to 8.107% and a reduction in the power factor from 0.860 to 0.840. With the parallel resonant filter connection with the capacitor bank, harmonic distortion was mitigated to 0.140%, and the power factor reduced to 0.553, the value which is very low. Hence, it is observed that for this sample case, the use of series resonant filter mitigated the harmonics distortion and maintained power factors within the acceptable IEEE standard values.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Harmonics mitigation on industrial loads using series and parallel resonant filters

2017

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“…The filters such as passive, active and hybrid types can be employed to minimize the effects of harmonics in the power systems (Peng et al 1990;Lee et al 2015;Li et al 2015). By reason of the fact that the consumer and power distribution system profiles are more variable, nonstationary and dynamic, the filter structure should operate coordinately for variable system operating conditions.…”

Section: Introductionmentioning

confidence: 99%

A Self Adjustable FACTS Device and Controller for Distribution Systems

Ozkop¹,

Altaş²,

Sharaf³

2017

AKU-J. Sci. Eng.

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In this paper, a FACTS based dynamic switched C-type filter (DSCTF) compensator scheme for distribution systems is presented with different load characteristics and control strategies. In order to suppress power quality problems and increase overall energy utilization efficiency; design and digital realization of the DSCTF consisting of dynamic control strategies are studied. Matlab/Simulink Software Environment is employed to validate the effectiveness of FACTS DSCTF device. It has been shown that the proposed FACTS-DSCTF is effective to mitigate power quality and energy utilization problems as well as in compensating voltage disturbances and current harmonics. Dağıtım Sistemleri için Kendinden Ayarlanabilir FACTS Cihazı ve Denetleyicisi Anahtar kelimeler FACTS; Dinamik Gerilim Düzenleyicisi; Dağıtım Sistemi; Çok Döngülü Denetim ÖzetBu çalışmada, dağıtım sistemleri için FACTS tabanlı dinamik anahtarlamalı C-tipi filtre (DSCTF) kompanzatörü, farklı denetim stratejileri ve yük karakteristikleri ile sunulmaktadır. Enerji kullanım verimini artırmak ve güç kalitesi problemlerini bastırmak için dinamik denetim stratejilerini içeren DSCTF nin tasarımı ve dijital gerçekleştirilmesi çalışılmıştır. FACTS DSCTF cihazının etkinliğini doğrulamak için Matlab/Simulink yazılım ortamı kullanılmıştır. Önerilen FACTS-DSCTF in güç kalitesi ve enerji kullanım problemlerini azaltmanın yanı sıra gerilim bozukluklarını ve akım harmoniklerini de kompanzasyonunda etkili olduğunu göstermektedir.

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“…Among the various viable hybrid active filter topologies, parallel hybrid active filters present a cost-effective solution for harmonic filtering and reactive power compensation of high power nonlinear industrial loads, due to the small rating of the active filter (2%-3%) of the load KVA rating [6]. Thus, they have attracted increasing attention [7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

A Repetitive Control Scheme Aimed at Compensating the 6k + 1 Harmonics for a Three-Phase Hybrid Active Filter

Luo

Yang

et al. 2016

Energies

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Abstract:The traditional repetitive controller has relatively worse stability and poor transient performance because it generates infinite gain at all the integer multiples of the fundamental frequency, and its control action is postponed by one fundamental period (T 0 ). To improve these disadvantages, many repetitive controllers with reduced delay time have been proposed, which can selectively compensate the odd harmonics or 6k ± 1 harmonics with delay time reduced to T 0 /2 and T 0 /3, respectively. To further study in this area, this paper proposes an improved repetitive scheme implemented in a stationary reference frame, which only compensates the 6k + 1 harmonics (e.g., −5, +7, −11, +13) in three-phase systems and reduces the time delay to T 0 /6. Thus compared with the earlier reduced delay time repetitive controllers, the robustness and transient performance is further improved, the waste of control effort is reduced, and the possibility of amplifying and even injecting any harmonic noises into the system is avoided to a great extent. Moreover, the proposed repetitive scheme is used in the control of a three-phase hybrid active power filter. The experimental results validate the effectiveness of the proposed repetitive control scheme.

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Hybrid Active Filter With Variable Conductance for Harmonic Resonance Suppression in Industrial Power Systems

Cited by 118 publications

References 46 publications

Harmonics mitigation on industrial loads using series and parallel resonant filters

Harmonics mitigation on industrial loads using series and parallel resonant filters

A Self Adjustable FACTS Device and Controller for Distribution Systems

A Repetitive Control Scheme Aimed at Compensating the 6k + 1 Harmonics for a Three-Phase Hybrid Active Filter

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