The Comparative Analysis of Phase Shifting Transformers

Albrechtowicz, Paweł; Szczepanik, Jerzy

doi:10.3390/en14144347

Cited by 10 publications

(3 citation statements)

References 20 publications

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“…In this way, an in-phase phase-shifting transformer was prepared, which can be changed very easily into an asymmetrical phase-shifting transformer (APST) [24]. Due to the possibility of both longitudinal and quadrature voltage control, this type of PST is called an asymmetrical controllable PST (ACPST) [18]. The laboratory ACPST unit has a special construction for the series winding, allowing for the increase in quadrature voltages from 0 to 256 V with 4 V steps.…”

Section: Laboratory Pst Constructionmentioning

confidence: 99%

“…Therefore, this study provides an efficiency analysis of different PST constructions with respect to their electrical properties and features. The author considers a single-core asymmetrical phase-shifting transformer (APST), a singlecore symmetrical phase-shifting transformer (SPST), and a unique dual-core construction with adjustable longitudinal voltage called an asymmetrical controllable phase-shifting transformer (ACPST) [18]. In some literature, an ACPST is also called an in-phase PST.…”

Section: Introductionmentioning

confidence: 99%

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Phase-Shifting Transformer Efficiency Analysis Based on Low-Voltage Laboratory Units

Albrechtowicz

2021

Energies

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Phase-shifting transformers are effective elements used to control power flows in many power systems. Their positive influence on power flows has been proved in the literature. However, the efficiency of phase-shifting transformers has not been analyzed, especially not with regard for their various types. This study is therefore focused on the efficiency question with respect to electrical energy parameters. Research was performed on a laboratory phase-shifter unit with longitudinal and quadrature voltage regulation, and then these results were correlated to the simulation model equivalent. Laboratory transformer parameter data were used to prepare asymmetrical and symmetrical phase-shifting transformer simulation models. Simulation results were then used to compare the electrical properties and efficiency of all the types of phase-shifting transformer considered. All phase-shifting transformer types had a significant impact on the transmitted active power, but each type had different features. The symmetrical unit had the lowest power losses and a stable output voltage level compared to the asymmetrical one, which increased the output voltage, while the quadrature voltage also grew. These features must be considered, taking into account power system conditions such as the voltage variability profile and active power transfer demand. In this study, we propose the construction of an asymmetrical controllable phase-shifting transformer in order to achieve flexible control.

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Section: Laboratory Pst Constructionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Phase-Shifting Transformer Efficiency Analysis Based on Low-Voltage Laboratory Units

Albrechtowicz

2021

Energies

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“…The possibility of both voltage regulation situations allows for better voltage values and direction properties. The proposed regulation of longitudinal voltage is a way to eliminate the main disadvantage of classical APST-an output voltage growth in relation to APST input voltage [20]. Similar units have been known for years.…”

Section: Introductionmentioning

confidence: 99%

Application of Phase-Shifting Transformer with Longitudinal and Transverse Voltage Regulation

et al. 2023

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This article was written to present a new solution for a phase-shifting transformer and to show that, in many aspects, the proposed device is more functional and improved when compared to the other currently available phase-shifting structures. The article shows the construction of the new phase-shifting transformer, with longitudinal and transverse voltage regulation. The proposed device’s functionality and available operation states are compared to other existing solutions. Selected steady-state variants of the operation of the proposed transformer were checked based on computer simulations and the laboratory model presented in detail in the article. Convergence between measurements and simulations was achieved. Power flow calculations were also performed in the five-node electrical power system model. In these calculations, two variants of the proposed device’s work were considered and compared with the asymmetric phase shifter. The tests confirmed in the proposed structure, both angle and voltage regulation, enabled maintaining a constant active power flow. The authors show that the proposed solution combines the advantages and functionality of various types of phase shifters while, at the same time, being characterized by a much simpler structure, which results in a two-times-lower cost of the device.

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The effect of phase-shifting transformer angle value on system congestion and determination of ideal phase angle

Aydin,

Yigit,

Acarkan

2024

Electr Eng

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The Comparative Analysis of Phase Shifting Transformers

Cited by 10 publications

References 20 publications

Phase-Shifting Transformer Efficiency Analysis Based on Low-Voltage Laboratory Units

Phase-Shifting Transformer Efficiency Analysis Based on Low-Voltage Laboratory Units

Application of Phase-Shifting Transformer with Longitudinal and Transverse Voltage Regulation

The effect of phase-shifting transformer angle value on system congestion and determination of ideal phase angle

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