A current regulated switched capacitor static volt ampere reactive compensator

Chakravorti, A.K.; Emanuel, A.E.

doi:10.1109/28.297916

Cited by 18 publications

(6 citation statements)

References 5 publications

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“…) constitutes a three-phase unbalanced delta configuration (Figure 4) that absorbs the negative-sequence reactive powers (−Q − ), which are caused by the negative-sequence voltages on the balanced configuration (− 1 3 B + , − 1 3 B + , − 1 3 B + ) and expressed by Equation (24). For the accomplishment of this goal, the currents flowing through the admittances of this unbalanced configuration are opposite to the negative-sequence currents engendered by the balanced configuration and expressed by (23), namely,…”

Section: Positive-sequence Reactive Power Compensatorsmentioning

confidence: 99%

Passive Reactive Power Compensators for Improving the Sustainability of Three-Phase, Four-Wire Sinusoidal Systems Supplied by Unbalanced Voltages

et al. 2021

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Compensation of reactive power is necessary in power systems due to economical, energetic, and environmental reasons. Reactive power increases energy power losses and carbon dioxide emissions in distribution lines and power transformers. However, capacitor banks used in most industrial applications do not significantly reduce energy losses in lines and transformers when supply voltages and loads are unbalanced and therefore do not fully improve the sustainability of distribution networks. This fact is explained in this paper using positive-, negative-, and zero-sequence reactive power components in three-phase, four-wire sinusoidal power systems supplied with unbalanced voltages. Likewise, several devices have also been developed for the compensation of the total reactive power and, specifically, for each of its components in these power systems. Comparing the effectiveness of these reactive compensators and other well-known passive compensators as capacitor banks on the sustainability improvement of the electrical installation of an actual industry, reductions between 20% and 100% in energy losses and carbon dioxide emissions, caused by circulation of reactive currents in transformer and lines, can be expected depending on the type of compensator used.

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Section: Positive-sequence Reactive Power Compensatorsmentioning

confidence: 99%

Passive Reactive Power Compensators for Improving the Sustainability of Three-Phase, Four-Wire Sinusoidal Systems Supplied by Unbalanced Voltages

et al. 2021

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“…Pengukuran daya dalam suatu sistem fasa banyak memerlukan pemakaian dua atau lebih watt meter. Kemudian daya nyata total diperoleh dengan menjumlahkan pembacaan masing-masing watt meter secara aljabar [5]. Daya reaktif yang disuplai ke sebuah rangkaian arus bolak-balik sebagai satuan yang disebut VAR (Volt-Ampere-Reactive), karena itu memberikan perbedaan antara daya nyata dan daya oleh komponen reaktif [6].…”

Section: Landasan Teoriunclassified

Rancang Bangun Sistem Digital Kalibrator KW Meter dan KVAR Meter Analog 3 Fasa

Wahyudi

Repi

2019

JIG

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Perancangan sistem digital kalibrator KW meter dan KVAR meter analog 3 fasa ini dibuat dengan menggunakan mikrokontroler dan instrumen PTC-8300H serta Visual Basic 6 sebagai program antarmuka serial pada komputer. Hasil pengujian menunjukkan bahwa hasil verifikasi dari kalibrasi produk memiliki penyimpangan rata-rata sebesar 0,0017 % untuk pengkalibrasian KW meter analog 3 fasa dan 0,0018 % untuk pengkalibrasian KVAR meter analog 3 fasa yang menunjukkan bahwa hasil kalibrasi cukup akurat dibandingkan sistem kalibrator yang telah ada sebelumnya dengan memiliki penyimpangan rata-rata sebesar 0,018 % untuk pengkalibrasian KW meter analog 3 fasa dan 0,016 % untuk pengkalibrasian KVAR meter analog 3 fasa.

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“…The configuration includes three branches such as an inductor L, and the controlled switches Sw1 and Sw2. Reactors may be controlled using both phase-angle and switched control scheme [13], [14], [15]. When a method of phase-angle control is employed, a constant consumption range of Var is obtained.…”

Section: Thyristor-controlled Reactormentioning

confidence: 99%

“…To reduce transient phenomena and harmonics distortion, and to improve the dynamics of the compensator, some researchers have applied self commutation to TSC and TCR. Some examples of this can be found in [14], [15]. However, best results have been obtained using self-commutated compensators and these are analyzed in section III.…”

Section: Thyristor-controlled Reactormentioning

confidence: 99%

Simulation Analysis of Switch Controlled Power Filters for Harmonic Reduction

Narasimhulu¹,

Kumar²,

Babu³

2016

International Journal of Applied Engineering Research

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This paper presents an implementation of a three phase Voltage Source Converter (VSC) as shunt active power filter for harmonic reduction under nonlinear loads. Traditionally, the Synchronous Condenser, Thyristor Controlled Reactor (TCR) and Thyristor Switched Capacitor (TSC) are implemented for harmonic reduction under nonlinear loads. The passive filters are required to achieve the desired harmonic reduction in traditional methods. The addition of filters suffers from the resonance. The proposed methodology avoids the requirement of additional filters to achieve the better total harmonic reduction for various types of loads. Sinusoidal Pulse Width Modulation (SPWM) is used to control Voltage Source Converter. The results are compared with traditional methods. The proposed work is validated through simulation results.

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A current regulated switched capacitor static volt ampere reactive compensator

Cited by 18 publications

References 5 publications

Passive Reactive Power Compensators for Improving the Sustainability of Three-Phase, Four-Wire Sinusoidal Systems Supplied by Unbalanced Voltages

Passive Reactive Power Compensators for Improving the Sustainability of Three-Phase, Four-Wire Sinusoidal Systems Supplied by Unbalanced Voltages

Rancang Bangun Sistem Digital Kalibrator KW Meter dan KVAR Meter Analog 3 Fasa

Simulation Analysis of Switch Controlled Power Filters for Harmonic Reduction

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