Design and implementation of triac based on load tap changer with primary tappings for constant output voltage

Lokhande, Netra; Kulkarni, Shubham; Ghone, Vinit; Kikale, Vishal; Patharkar, Rushikesh

doi:10.1109/i2ct.2017.8226103

Cited by 4 publications

(2 citation statements)

References 2 publications

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“…To prevent the large current in short circuit, a resistor or inductor is used [15][16][17][18], but the slow switching rate of a thyristor and the control complexity still remain challenges. TRIAC with two thyristors connected in anti-parallel also has the same problem [19]. On the other hand, IGBT has not been used as switch elements in an SVR due to low blocking voltage.…”

Section: Introductionmentioning

confidence: 99%

Design of Step Voltage Regulator Based on IGBT

Lee,

Kim,

Park

et al. 2024

Energies

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The introduction of distributed generation (DG) into distribution systems is expanding due to carbon neutral policies. DG with intermittent output characteristics brings frequent voltage variations in distribution systems. Generally, a step voltage regulator (SVR) is installed in the long distribution line and controls its voltage, which has limits of stable voltage regulations due to the slow tap-changing rate, switching losses, and short life span. To solve those problems, this paper proposes an IGBT-based SVR using zero-voltage switching. It is verified that the stable operation can be obtained through simulation by PSCAD/EMTDC 4.6 software and empirical experiments.

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Section: Introductionmentioning

confidence: 99%

Design of Step Voltage Regulator Based on IGBT

Lee,

Kim,

Park

et al. 2024

Energies

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“…Although many modifications with current limiters [16] or with auxiliary transformers [17] have been employed to resolve this issue, thyristors are still suffering of many unresolved problems such as slow switching operation, and the complexity of the control circuit. The Traic based OLTC as well has been used [19], but it is suffering of the same drawbacks of the thyristors.…”

Section: Introductionmentioning

confidence: 99%

Automatic Voltage Stabilization Using IGBT Based on Load Tap Changer With Fault Consideration

2021

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In this work, a voltage regulation scheme to stabilize voltage variation in the consumer side is proposed. The voltage regulation scheme uses IGBT-based onload tap changer (OLTC) and nonlinear hysteresis control algorithm. The proposed switching algorithm establishes the commutation of the taps without redundant short circuit operation of the taps. The experimental results of the designed system show accurate voltage regulation at the consumer side and high ability of the designed system to fix voltage sag and voltage swell in maximum of one cycle period. The paper considers the consequences of fault in the drive circuit of the IGBT tap changer and discusses its reliability. The analysis and the experimental results of the faults in the drive circuit show that the loss of one drive signal results in a large circulating DC current in the primary circuit and may result in fault current of value more than three times the operated current, which leads to unavailability of the system. INDEX TERMSOn load tap changer, voltage regulation, distribution transformer, IGBT, OLTC fault analysis.

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Design and Simulation of a Seven Taps Electronic on Load Tap Changer in 11/0.4KV Distribution Transformers Using a PI Controller

Alsuwaidi

Adam

2019

2019 International Conference on Electrical and Computing Technologies and Applications (ICECTA)

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Design and implementation of triac based on load tap changer with primary tappings for constant output voltage

Cited by 4 publications

References 2 publications

Design of Step Voltage Regulator Based on IGBT

Design of Step Voltage Regulator Based on IGBT

Automatic Voltage Stabilization Using IGBT Based on Load Tap Changer With Fault Consideration

Design and Simulation of a Seven Taps Electronic on Load Tap Changer in 11/0.4KV Distribution Transformers Using a PI Controller

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