Voltage-current and harmonic characteristic analysis of different FC-TCR based SVC

Shawon, Mohammad Hasanuzzaman; Hanzelka, Zbigniew; Dziadecki, Aleksander

doi:10.1109/ptc.2015.7232559

Cited by 16 publications

(5 citation statements)

References 8 publications

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“…For instance, the reactive power if not compensated can cause system instability, voltage and current increases, power losses, etc. [3][4][5]. The harmonics, if not mitigated in the power system, can cause an increase in the voltage and current true RMS, the overloading, overheating, and even damage of electrical system elements (e.g., transformers, generators, cables, electric motors, capacitors, etc.)…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Influence of the 6-Pulse Thyristor-Bridge Input Reactor Size on the Shunt Active Power Filter Work Efficiency: A Case Study

Azebaze Mboving,

Hanzelka

2023

Energies

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This paper presents a case study in which the influence of the 6-pulse thyristor-bridge input reactor size on the shunt active power filter (SAPF)’s work performance is investigated. The purpose of using an SAPF in the power system is in most cases for fundamental harmonic reactive power compensation, harmonics and asymmetry mitigation. The work efficiency of such a filter depends not only on the designed control system, interface filter and dc-link capacitor parameters, but also on the parameters of the electrical system in which it is connected. Therefore, it is necessary to study and know the power system (supplier and consumer sides) before its installation. For instance, in the electrical system with diode or thyristor-bridge as loads, the SAPF performance efficiency may not be satisfied due to the high rate of current change (di/dt) at the points of commutation notches. In this paper, the performed simulation and laboratory experiments show that for a better operating efficiency of the SAPF, the input reactor parameters should be selected based not only on the effective reduction in the inverter switching ripple or the control system demand, but also on the parameters of the load, such as the parameters of the diode or thyristor-bridge input reactor. Apart from the experimental demonstrations on how the input reactor size influences the SAPF work efficiency, the novelties in this paper are: the formulated recommendations on how to choose the SAPF input reactor parameters (the SAPF is more efficient in terms of harmonics, asymmetry and reactive power mitigation when the inductance of its input reactor (L-filter) is smaller than the one of the diode or thyristor-bridge input reactor); the proposed SAPF control system; the proposed expressions to compute the SAPF input reactor inductance, DC voltage and capacitor.

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Section: Introductionmentioning

confidence: 99%

Analysis of the Influence of the 6-Pulse Thyristor-Bridge Input Reactor Size on the Shunt Active Power Filter Work Efficiency: A Case Study

Azebaze Mboving,

Hanzelka

2023

Energies

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“…The consequences of the reactive power generated in the electrical system can be the system instability, which can affect the voltage and current level, the change of the system power losses, which may increase, etc. [50][51][52]. The harmonic sources in the power system can be organized into three important groups such as presented in [53]: saturated core devices (e.g., transformers, motors, generators, etc.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Factors Having an Influence on the LC Passive Harmonic Filter Work Efficiency

2022

Self Cite

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This paper presents the electrical system factors having an influence on the work efficiency and performance of the LC passive harmonic filters (PHFs). Such filters are very often used in industries for the purpose of harmonics mitigation and reactive power compensation. Before their installation in the electrical system, many investigations should be performed in order to ensure their good design as well as work efficiency after connection. In this paper, the factors having an influence on the PHFs work efficiency and performance, such as the grid short-circuit power, primary grid voltage spectrum (voltage measured at the PCC before the filter connection), load reactive power and current characteristic harmonics, manufacturer filter parameters tolerance and filter-detuning phenomena are investigated. Most of the quoted factors are mentioned in the literature, but the novelty of this paper is that, based on the case study example of the single-tuned filter investigated in the laboratory, the influence of those factors on the filter work efficiency are demonstrated, and some solutions and recommendations are proposed. The studies are focused on the design of the single-tuned filter in the laboratory, and some simulation results are presented as well.

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“…Lineer olmayan yük modellerinin sebep olduğu harmoniklerin minimum düzeye indirilmesinde SVC tercih edilmektedir. Frekans mertebesine göre akım ve gerilim toplam harmonik bozunumlarının azaltılmasında SVC kullanımının önemli olduğu ilgili çalışmalarda gösterilmiştir [9,10]. Güç akışı ve optimal yük akışı problemlerinin çözümlenmesinde SVC yaygın bir şekilde kullanılmaktadır.…”

Section: Introductionunclassified

Güç sistemlerinde çoklu SVC kullanımı ile statik gerilim kararlılığının iyileştirilmesi

Döşoğlu

Kaymaz

DEMİRBAŞ

2022

Uluslararası Teknolojik Bilimler Dergisi

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Günümüzde Esnek AC İletim Sistemleri (FACTS) elemanları yük merkezlerinde yerel olarak reaktif güç desteği sağlamakta ve dolayısıyla bara gerilimleri güvenli çalışma sınırları içinde tutmaktadır. Özellikle de paralel FACTS cihazlarının tekli kullanımı yüklenme durumlarına göre sistemin güvenli çalışma durumlarını iyileştiremeyebilir. Bu yüzden paralel FACTS cihazlarının hem yüksek maliyetlerinden kaçınmak hem de sistemdeki uygun yerlerinin tespit edilmesi önemli bir konu olmaktadır. Bunun için paralel FACTS cihazlarından birisi olan Statik Var Kompanzatör (SVC) kullanılmaktadır. Bu çalışmada, 3 makinalı 9 baralı güç sisteminde SVC’nin farklı yük baralarında çoklu kullanılması ile çok makinalı sistemin maksimum yüklenme parametresi üzerindeki etkileri incelenmiştir. Dahası bara gerilim profilleri ve aktif-reaktif güç üzerindeki değişimleri detaylı olarak incelenmiştir. Bu çalışmada, üç analiz yöntemi kullanılmıştır. Bunlar SVC’nin olmadığı durum, SVC’nin tekli kullanıldığı durum ve SVC’nin çoklu kullanıldığı durumlardır. Bu benzetim çalışması için Güç Sistemleri Analizi Programı (PSAT) tercih edilmiştir. Yapılan çalışma sonucunda çoklu SVC kullanımının diğerlerine göre maksimum yüklenme parametresi değerini arttırdığı, bara gerilim profillerini ve aktif-reaktif güç değişimlerini iyileştirdiği görülmüştür.

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Voltage-current and harmonic characteristic analysis of different FC-TCR based SVC

Cited by 16 publications

References 8 publications

Analysis of the Influence of the 6-Pulse Thyristor-Bridge Input Reactor Size on the Shunt Active Power Filter Work Efficiency: A Case Study

Analysis of the Influence of the 6-Pulse Thyristor-Bridge Input Reactor Size on the Shunt Active Power Filter Work Efficiency: A Case Study

Analysis of the Factors Having an Influence on the LC Passive Harmonic Filter Work Efficiency

Güç sistemlerinde çoklu SVC kullanımı ile statik gerilim kararlılığının iyileştirilmesi

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