Performance Analysis of Modified Three Phase Buck AC Voltage Regulator

Faisal, Mohammad; Hossain, Mohammad Rubaiyat Tanvir

doi:10.1109/ecace.2019.8679387

Cited by 5 publications

(1 citation statement)

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“…The proposed AC voltage regulators with a switched quasi-impedance of the power supply can be used as well as the previous structures in the role of three-phase AC voltage stabilizers. A specific application is also possible in the role of transformer-free devices for increasing alternating voltage, as well as a soft-start device for asynchronous motors [24,25]. A feature of this structure is its use in autonomous power supply systems where there is access to the zero network.…”

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confidence: 99%

Review and Analysis of Energy-Efficient AC Voltage Regulators

Udovichenko,

Grishanov,

Kosykh

et al. 2023

Preprint

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The formation of the required AC voltage level is currently one of the most important problems. An unstable voltage level can lead to the failure of domestic and industrial equipment, also to the appearance of a lighting equipment flicker effect, which can adversely affect the operating mode. In this regard, the development of AC voltage regulators that perform the function of stabilizers has become relevant. In turn, new topologies should be energy efficient and reliable, this can be achieved by reducing the number of semiconductor elements, which in turn will reduce losses and increase efficiency. In addition to voltage stabilization, AC voltage regulators have found application as soft-start devices for asynchronous motors, and have become competitors to frequency converters. The power level can vary from units to tens of kilowatts where such devices can be used. This paper provides a review of AC voltage regulators, which can be used both as soft starters and AC voltage stabilizers. The analysis of the circuits was carried out and the efficiency was evaluated through their total harmonic distortions (THD), power factor and efficiency coefficient. Experiments were also performed for a number of circuits, where their operating modes were evaluated. Eventually, all circuits were divided into full number of switches with two or more AC switches per phase, with a reduced number of switches, where one AC switch per phase and with low number of switches – with one complementary pair of AC switches for all three phases.

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confidence: 99%